5200 lines
198 KiB
TableGen
5200 lines
198 KiB
TableGen
//===- ARMInstrInfo.td - Target Description for ARM Target -*- tablegen -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file describes the ARM instructions in TableGen format.
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// ARM specific DAG Nodes.
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//
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// Type profiles.
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def SDT_ARMCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32> ]>;
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def SDT_ARMCallSeqEnd : SDCallSeqEnd<[ SDTCisVT<0, i32>, SDTCisVT<1, i32> ]>;
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def SDT_ARMSaveCallPC : SDTypeProfile<0, 1, []>;
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def SDT_ARMcall : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
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def SDT_ARMCMov : SDTypeProfile<1, 3,
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[SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>,
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SDTCisVT<3, i32>]>;
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def SDT_ARMBrcond : SDTypeProfile<0, 2,
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[SDTCisVT<0, OtherVT>, SDTCisVT<1, i32>]>;
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def SDT_ARMBrJT : SDTypeProfile<0, 3,
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[SDTCisPtrTy<0>, SDTCisVT<1, i32>,
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SDTCisVT<2, i32>]>;
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def SDT_ARMBr2JT : SDTypeProfile<0, 4,
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[SDTCisPtrTy<0>, SDTCisVT<1, i32>,
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SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
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def SDT_ARMBCC_i64 : SDTypeProfile<0, 6,
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[SDTCisVT<0, i32>,
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SDTCisVT<1, i32>, SDTCisVT<2, i32>,
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SDTCisVT<3, i32>, SDTCisVT<4, i32>,
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SDTCisVT<5, OtherVT>]>;
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def SDT_ARMAnd : SDTypeProfile<1, 2,
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[SDTCisVT<0, i32>, SDTCisVT<1, i32>,
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SDTCisVT<2, i32>]>;
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def SDT_ARMCmp : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
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def SDT_ARMPICAdd : SDTypeProfile<1, 2, [SDTCisSameAs<0, 1>,
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SDTCisPtrTy<1>, SDTCisVT<2, i32>]>;
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def SDT_ARMThreadPointer : SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>;
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def SDT_ARMEH_SJLJ_Setjmp : SDTypeProfile<1, 2, [SDTCisInt<0>, SDTCisPtrTy<1>,
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SDTCisInt<2>]>;
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def SDT_ARMEH_SJLJ_Longjmp: SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisInt<1>]>;
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def SDT_ARMMEMBARRIER : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
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def SDT_ARMPREFETCH : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisSameAs<1, 2>,
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SDTCisInt<1>]>;
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def SDT_ARMTCRET : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
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def SDT_ARMBFI : SDTypeProfile<1, 3, [SDTCisVT<0, i32>, SDTCisVT<1, i32>,
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SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
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def SDTBinaryArithWithFlags : SDTypeProfile<2, 2,
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[SDTCisSameAs<0, 2>,
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SDTCisSameAs<0, 3>,
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SDTCisInt<0>, SDTCisVT<1, i32>]>;
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// SDTBinaryArithWithFlagsInOut - RES1, CPSR = op LHS, RHS, CPSR
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def SDTBinaryArithWithFlagsInOut : SDTypeProfile<2, 3,
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[SDTCisSameAs<0, 2>,
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SDTCisSameAs<0, 3>,
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SDTCisInt<0>,
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SDTCisVT<1, i32>,
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SDTCisVT<4, i32>]>;
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// Node definitions.
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def ARMWrapper : SDNode<"ARMISD::Wrapper", SDTIntUnaryOp>;
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def ARMWrapperDYN : SDNode<"ARMISD::WrapperDYN", SDTIntUnaryOp>;
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def ARMWrapperPIC : SDNode<"ARMISD::WrapperPIC", SDTIntUnaryOp>;
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def ARMWrapperJT : SDNode<"ARMISD::WrapperJT", SDTIntBinOp>;
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def ARMcallseq_start : SDNode<"ISD::CALLSEQ_START", SDT_ARMCallSeqStart,
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[SDNPHasChain, SDNPOutGlue]>;
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def ARMcallseq_end : SDNode<"ISD::CALLSEQ_END", SDT_ARMCallSeqEnd,
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[SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
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def ARMcall : SDNode<"ARMISD::CALL", SDT_ARMcall,
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[SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
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SDNPVariadic]>;
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def ARMcall_pred : SDNode<"ARMISD::CALL_PRED", SDT_ARMcall,
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[SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
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SDNPVariadic]>;
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def ARMcall_nolink : SDNode<"ARMISD::CALL_NOLINK", SDT_ARMcall,
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[SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
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SDNPVariadic]>;
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def ARMretflag : SDNode<"ARMISD::RET_FLAG", SDTNone,
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[SDNPHasChain, SDNPOptInGlue]>;
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def ARMcmov : SDNode<"ARMISD::CMOV", SDT_ARMCMov,
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[SDNPInGlue]>;
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def ARMbrcond : SDNode<"ARMISD::BRCOND", SDT_ARMBrcond,
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[SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
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def ARMbrjt : SDNode<"ARMISD::BR_JT", SDT_ARMBrJT,
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[SDNPHasChain]>;
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def ARMbr2jt : SDNode<"ARMISD::BR2_JT", SDT_ARMBr2JT,
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[SDNPHasChain]>;
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def ARMBcci64 : SDNode<"ARMISD::BCC_i64", SDT_ARMBCC_i64,
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[SDNPHasChain]>;
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def ARMcmp : SDNode<"ARMISD::CMP", SDT_ARMCmp,
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[SDNPOutGlue]>;
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def ARMcmpZ : SDNode<"ARMISD::CMPZ", SDT_ARMCmp,
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[SDNPOutGlue, SDNPCommutative]>;
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def ARMpic_add : SDNode<"ARMISD::PIC_ADD", SDT_ARMPICAdd>;
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def ARMsrl_flag : SDNode<"ARMISD::SRL_FLAG", SDTIntUnaryOp, [SDNPOutGlue]>;
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def ARMsra_flag : SDNode<"ARMISD::SRA_FLAG", SDTIntUnaryOp, [SDNPOutGlue]>;
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def ARMrrx : SDNode<"ARMISD::RRX" , SDTIntUnaryOp, [SDNPInGlue ]>;
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def ARMaddc : SDNode<"ARMISD::ADDC", SDTBinaryArithWithFlags,
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[SDNPCommutative]>;
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def ARMsubc : SDNode<"ARMISD::SUBC", SDTBinaryArithWithFlags>;
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def ARMadde : SDNode<"ARMISD::ADDE", SDTBinaryArithWithFlagsInOut>;
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def ARMsube : SDNode<"ARMISD::SUBE", SDTBinaryArithWithFlagsInOut>;
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def ARMthread_pointer: SDNode<"ARMISD::THREAD_POINTER", SDT_ARMThreadPointer>;
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def ARMeh_sjlj_setjmp: SDNode<"ARMISD::EH_SJLJ_SETJMP",
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SDT_ARMEH_SJLJ_Setjmp, [SDNPHasChain]>;
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def ARMeh_sjlj_longjmp: SDNode<"ARMISD::EH_SJLJ_LONGJMP",
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SDT_ARMEH_SJLJ_Longjmp, [SDNPHasChain]>;
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def ARMMemBarrier : SDNode<"ARMISD::MEMBARRIER", SDT_ARMMEMBARRIER,
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[SDNPHasChain]>;
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def ARMMemBarrierMCR : SDNode<"ARMISD::MEMBARRIER_MCR", SDT_ARMMEMBARRIER,
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[SDNPHasChain]>;
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def ARMPreload : SDNode<"ARMISD::PRELOAD", SDT_ARMPREFETCH,
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[SDNPHasChain, SDNPMayLoad, SDNPMayStore]>;
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def ARMrbit : SDNode<"ARMISD::RBIT", SDTIntUnaryOp>;
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def ARMtcret : SDNode<"ARMISD::TC_RETURN", SDT_ARMTCRET,
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[SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
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def ARMbfi : SDNode<"ARMISD::BFI", SDT_ARMBFI>;
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//===----------------------------------------------------------------------===//
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// ARM Instruction Predicate Definitions.
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//
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def HasV4T : Predicate<"Subtarget->hasV4TOps()">,
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AssemblerPredicate<"HasV4TOps">;
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def NoV4T : Predicate<"!Subtarget->hasV4TOps()">;
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def HasV5T : Predicate<"Subtarget->hasV5TOps()">;
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def HasV5TE : Predicate<"Subtarget->hasV5TEOps()">,
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AssemblerPredicate<"HasV5TEOps">;
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def HasV6 : Predicate<"Subtarget->hasV6Ops()">,
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AssemblerPredicate<"HasV6Ops">;
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def NoV6 : Predicate<"!Subtarget->hasV6Ops()">;
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def HasV6T2 : Predicate<"Subtarget->hasV6T2Ops()">,
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AssemblerPredicate<"HasV6T2Ops">;
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def NoV6T2 : Predicate<"!Subtarget->hasV6T2Ops()">;
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def HasV7 : Predicate<"Subtarget->hasV7Ops()">,
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AssemblerPredicate<"HasV7Ops">;
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def NoVFP : Predicate<"!Subtarget->hasVFP2()">;
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def HasVFP2 : Predicate<"Subtarget->hasVFP2()">,
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AssemblerPredicate<"FeatureVFP2">;
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def HasVFP3 : Predicate<"Subtarget->hasVFP3()">,
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AssemblerPredicate<"FeatureVFP3">;
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def HasVFP4 : Predicate<"Subtarget->hasVFP4()">,
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AssemblerPredicate<"FeatureVFP4">;
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def HasNEON : Predicate<"Subtarget->hasNEON()">,
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AssemblerPredicate<"FeatureNEON">;
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def HasFP16 : Predicate<"Subtarget->hasFP16()">,
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AssemblerPredicate<"FeatureFP16">;
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def HasDivide : Predicate<"Subtarget->hasDivide()">,
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AssemblerPredicate<"FeatureHWDiv">;
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def HasT2ExtractPack : Predicate<"Subtarget->hasT2ExtractPack()">,
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AssemblerPredicate<"FeatureT2XtPk">;
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def HasThumb2DSP : Predicate<"Subtarget->hasThumb2DSP()">,
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AssemblerPredicate<"FeatureDSPThumb2">;
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def HasDB : Predicate<"Subtarget->hasDataBarrier()">,
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AssemblerPredicate<"FeatureDB">;
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def HasMP : Predicate<"Subtarget->hasMPExtension()">,
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AssemblerPredicate<"FeatureMP">;
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def UseNEONForFP : Predicate<"Subtarget->useNEONForSinglePrecisionFP()">;
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def DontUseNEONForFP : Predicate<"!Subtarget->useNEONForSinglePrecisionFP()">;
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def IsThumb : Predicate<"Subtarget->isThumb()">,
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AssemblerPredicate<"ModeThumb">;
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def IsThumb1Only : Predicate<"Subtarget->isThumb1Only()">;
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def IsThumb2 : Predicate<"Subtarget->isThumb2()">,
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AssemblerPredicate<"ModeThumb,FeatureThumb2">;
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def IsMClass : Predicate<"Subtarget->isMClass()">,
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AssemblerPredicate<"FeatureMClass">;
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def IsARClass : Predicate<"!Subtarget->isMClass()">,
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AssemblerPredicate<"!FeatureMClass">;
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def IsARM : Predicate<"!Subtarget->isThumb()">,
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AssemblerPredicate<"!ModeThumb">;
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def IsIOS : Predicate<"Subtarget->isTargetIOS()">;
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def IsNotIOS : Predicate<"!Subtarget->isTargetIOS()">;
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def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
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// FIXME: Eventually this will be just "hasV6T2Ops".
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def UseMovt : Predicate<"Subtarget->useMovt()">;
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def DontUseMovt : Predicate<"!Subtarget->useMovt()">;
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def UseFPVMLx : Predicate<"Subtarget->useFPVMLx()">;
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// Prefer fused MAC for fp mul + add over fp VMLA / VMLS if they are available.
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// But only select them if more precision in FP computation is allowed.
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// Do not use them for Darwin platforms.
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def UseFusedMAC : Predicate<"!TM.Options.NoExcessFPPrecision && "
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"!Subtarget->isTargetDarwin()">;
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def DontUseFusedMAC : Predicate<"!Subtarget->hasVFP4() || "
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"Subtarget->isTargetDarwin()">;
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//===----------------------------------------------------------------------===//
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// ARM Flag Definitions.
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class RegConstraint<string C> {
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string Constraints = C;
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}
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//===----------------------------------------------------------------------===//
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// ARM specific transformation functions and pattern fragments.
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//
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// so_imm_neg_XFORM - Return a so_imm value packed into the format described for
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// so_imm_neg def below.
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def so_imm_neg_XFORM : SDNodeXForm<imm, [{
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return CurDAG->getTargetConstant(-(int)N->getZExtValue(), MVT::i32);
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}]>;
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// so_imm_not_XFORM - Return a so_imm value packed into the format described for
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// so_imm_not def below.
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def so_imm_not_XFORM : SDNodeXForm<imm, [{
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return CurDAG->getTargetConstant(~(int)N->getZExtValue(), MVT::i32);
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}]>;
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/// imm16_31 predicate - True if the 32-bit immediate is in the range [16,31].
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def imm16_31 : ImmLeaf<i32, [{
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return (int32_t)Imm >= 16 && (int32_t)Imm < 32;
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}]>;
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def so_imm_neg_asmoperand : AsmOperandClass { let Name = "ARMSOImmNeg"; }
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def so_imm_neg : Operand<i32>, PatLeaf<(imm), [{
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int64_t Value = -(int)N->getZExtValue();
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return Value && ARM_AM::getSOImmVal(Value) != -1;
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}], so_imm_neg_XFORM> {
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let ParserMatchClass = so_imm_neg_asmoperand;
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}
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// Note: this pattern doesn't require an encoder method and such, as it's
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// only used on aliases (Pat<> and InstAlias<>). The actual encoding
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// is handled by the destination instructions, which use so_imm.
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def so_imm_not_asmoperand : AsmOperandClass { let Name = "ARMSOImmNot"; }
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def so_imm_not : Operand<i32>, PatLeaf<(imm), [{
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return ARM_AM::getSOImmVal(~(uint32_t)N->getZExtValue()) != -1;
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}], so_imm_not_XFORM> {
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let ParserMatchClass = so_imm_not_asmoperand;
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}
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// sext_16_node predicate - True if the SDNode is sign-extended 16 or more bits.
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def sext_16_node : PatLeaf<(i32 GPR:$a), [{
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return CurDAG->ComputeNumSignBits(SDValue(N,0)) >= 17;
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}]>;
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/// Split a 32-bit immediate into two 16 bit parts.
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def hi16 : SDNodeXForm<imm, [{
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return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() >> 16, MVT::i32);
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}]>;
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def lo16AllZero : PatLeaf<(i32 imm), [{
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// Returns true if all low 16-bits are 0.
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return (((uint32_t)N->getZExtValue()) & 0xFFFFUL) == 0;
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}], hi16>;
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class BinOpWithFlagFrag<dag res> :
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PatFrag<(ops node:$LHS, node:$RHS, node:$FLAG), res>;
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class BinOpFrag<dag res> : PatFrag<(ops node:$LHS, node:$RHS), res>;
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class UnOpFrag <dag res> : PatFrag<(ops node:$Src), res>;
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// An 'and' node with a single use.
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def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
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return N->hasOneUse();
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}]>;
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// An 'xor' node with a single use.
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def xor_su : PatFrag<(ops node:$lhs, node:$rhs), (xor node:$lhs, node:$rhs), [{
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return N->hasOneUse();
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}]>;
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// An 'fmul' node with a single use.
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def fmul_su : PatFrag<(ops node:$lhs, node:$rhs), (fmul node:$lhs, node:$rhs),[{
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return N->hasOneUse();
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}]>;
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// An 'fadd' node which checks for single non-hazardous use.
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def fadd_mlx : PatFrag<(ops node:$lhs, node:$rhs),(fadd node:$lhs, node:$rhs),[{
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return hasNoVMLxHazardUse(N);
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}]>;
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// An 'fsub' node which checks for single non-hazardous use.
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def fsub_mlx : PatFrag<(ops node:$lhs, node:$rhs),(fsub node:$lhs, node:$rhs),[{
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return hasNoVMLxHazardUse(N);
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}]>;
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//===----------------------------------------------------------------------===//
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// Operand Definitions.
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//
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// Immediate operands with a shared generic asm render method.
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class ImmAsmOperand : AsmOperandClass { let RenderMethod = "addImmOperands"; }
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// Branch target.
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// FIXME: rename brtarget to t2_brtarget
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def brtarget : Operand<OtherVT> {
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let EncoderMethod = "getBranchTargetOpValue";
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let OperandType = "OPERAND_PCREL";
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let DecoderMethod = "DecodeT2BROperand";
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}
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// FIXME: get rid of this one?
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def uncondbrtarget : Operand<OtherVT> {
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let EncoderMethod = "getUnconditionalBranchTargetOpValue";
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let OperandType = "OPERAND_PCREL";
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}
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// Branch target for ARM. Handles conditional/unconditional
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def br_target : Operand<OtherVT> {
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let EncoderMethod = "getARMBranchTargetOpValue";
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let OperandType = "OPERAND_PCREL";
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}
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// Call target.
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// FIXME: rename bltarget to t2_bl_target?
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def bltarget : Operand<i32> {
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// Encoded the same as branch targets.
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let EncoderMethod = "getBranchTargetOpValue";
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let OperandType = "OPERAND_PCREL";
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}
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// Call target for ARM. Handles conditional/unconditional
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// FIXME: rename bl_target to t2_bltarget?
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def bl_target : Operand<i32> {
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let EncoderMethod = "getARMBLTargetOpValue";
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let OperandType = "OPERAND_PCREL";
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}
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def blx_target : Operand<i32> {
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let EncoderMethod = "getARMBLXTargetOpValue";
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let OperandType = "OPERAND_PCREL";
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}
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// A list of registers separated by comma. Used by load/store multiple.
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def RegListAsmOperand : AsmOperandClass { let Name = "RegList"; }
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def reglist : Operand<i32> {
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let EncoderMethod = "getRegisterListOpValue";
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let ParserMatchClass = RegListAsmOperand;
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let PrintMethod = "printRegisterList";
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let DecoderMethod = "DecodeRegListOperand";
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}
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def DPRRegListAsmOperand : AsmOperandClass { let Name = "DPRRegList"; }
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def dpr_reglist : Operand<i32> {
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let EncoderMethod = "getRegisterListOpValue";
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let ParserMatchClass = DPRRegListAsmOperand;
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let PrintMethod = "printRegisterList";
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let DecoderMethod = "DecodeDPRRegListOperand";
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}
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def SPRRegListAsmOperand : AsmOperandClass { let Name = "SPRRegList"; }
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def spr_reglist : Operand<i32> {
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let EncoderMethod = "getRegisterListOpValue";
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let ParserMatchClass = SPRRegListAsmOperand;
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let PrintMethod = "printRegisterList";
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let DecoderMethod = "DecodeSPRRegListOperand";
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}
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// An operand for the CONSTPOOL_ENTRY pseudo-instruction.
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def cpinst_operand : Operand<i32> {
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let PrintMethod = "printCPInstOperand";
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}
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// Local PC labels.
|
|
def pclabel : Operand<i32> {
|
|
let PrintMethod = "printPCLabel";
|
|
}
|
|
|
|
// ADR instruction labels.
|
|
def adrlabel : Operand<i32> {
|
|
let EncoderMethod = "getAdrLabelOpValue";
|
|
}
|
|
|
|
def neon_vcvt_imm32 : Operand<i32> {
|
|
let EncoderMethod = "getNEONVcvtImm32OpValue";
|
|
let DecoderMethod = "DecodeVCVTImmOperand";
|
|
}
|
|
|
|
// rot_imm: An integer that encodes a rotate amount. Must be 8, 16, or 24.
|
|
def rot_imm_XFORM: SDNodeXForm<imm, [{
|
|
switch (N->getZExtValue()){
|
|
default: assert(0);
|
|
case 0: return CurDAG->getTargetConstant(0, MVT::i32);
|
|
case 8: return CurDAG->getTargetConstant(1, MVT::i32);
|
|
case 16: return CurDAG->getTargetConstant(2, MVT::i32);
|
|
case 24: return CurDAG->getTargetConstant(3, MVT::i32);
|
|
}
|
|
}]>;
|
|
def RotImmAsmOperand : AsmOperandClass {
|
|
let Name = "RotImm";
|
|
let ParserMethod = "parseRotImm";
|
|
}
|
|
def rot_imm : Operand<i32>, PatLeaf<(i32 imm), [{
|
|
int32_t v = N->getZExtValue();
|
|
return v == 8 || v == 16 || v == 24; }],
|
|
rot_imm_XFORM> {
|
|
let PrintMethod = "printRotImmOperand";
|
|
let ParserMatchClass = RotImmAsmOperand;
|
|
}
|
|
|
|
// shift_imm: An integer that encodes a shift amount and the type of shift
|
|
// (asr or lsl). The 6-bit immediate encodes as:
|
|
// {5} 0 ==> lsl
|
|
// 1 asr
|
|
// {4-0} imm5 shift amount.
|
|
// asr #32 encoded as imm5 == 0.
|
|
def ShifterImmAsmOperand : AsmOperandClass {
|
|
let Name = "ShifterImm";
|
|
let ParserMethod = "parseShifterImm";
|
|
}
|
|
def shift_imm : Operand<i32> {
|
|
let PrintMethod = "printShiftImmOperand";
|
|
let ParserMatchClass = ShifterImmAsmOperand;
|
|
}
|
|
|
|
// shifter_operand operands: so_reg_reg, so_reg_imm, and so_imm.
|
|
def ShiftedRegAsmOperand : AsmOperandClass { let Name = "RegShiftedReg"; }
|
|
def so_reg_reg : Operand<i32>, // reg reg imm
|
|
ComplexPattern<i32, 3, "SelectRegShifterOperand",
|
|
[shl, srl, sra, rotr]> {
|
|
let EncoderMethod = "getSORegRegOpValue";
|
|
let PrintMethod = "printSORegRegOperand";
|
|
let DecoderMethod = "DecodeSORegRegOperand";
|
|
let ParserMatchClass = ShiftedRegAsmOperand;
|
|
let MIOperandInfo = (ops GPRnopc, GPRnopc, i32imm);
|
|
}
|
|
|
|
def ShiftedImmAsmOperand : AsmOperandClass { let Name = "RegShiftedImm"; }
|
|
def so_reg_imm : Operand<i32>, // reg imm
|
|
ComplexPattern<i32, 2, "SelectImmShifterOperand",
|
|
[shl, srl, sra, rotr]> {
|
|
let EncoderMethod = "getSORegImmOpValue";
|
|
let PrintMethod = "printSORegImmOperand";
|
|
let DecoderMethod = "DecodeSORegImmOperand";
|
|
let ParserMatchClass = ShiftedImmAsmOperand;
|
|
let MIOperandInfo = (ops GPR, i32imm);
|
|
}
|
|
|
|
// FIXME: Does this need to be distinct from so_reg?
|
|
def shift_so_reg_reg : Operand<i32>, // reg reg imm
|
|
ComplexPattern<i32, 3, "SelectShiftRegShifterOperand",
|
|
[shl,srl,sra,rotr]> {
|
|
let EncoderMethod = "getSORegRegOpValue";
|
|
let PrintMethod = "printSORegRegOperand";
|
|
let DecoderMethod = "DecodeSORegRegOperand";
|
|
let ParserMatchClass = ShiftedRegAsmOperand;
|
|
let MIOperandInfo = (ops GPR, GPR, i32imm);
|
|
}
|
|
|
|
// FIXME: Does this need to be distinct from so_reg?
|
|
def shift_so_reg_imm : Operand<i32>, // reg reg imm
|
|
ComplexPattern<i32, 2, "SelectShiftImmShifterOperand",
|
|
[shl,srl,sra,rotr]> {
|
|
let EncoderMethod = "getSORegImmOpValue";
|
|
let PrintMethod = "printSORegImmOperand";
|
|
let DecoderMethod = "DecodeSORegImmOperand";
|
|
let ParserMatchClass = ShiftedImmAsmOperand;
|
|
let MIOperandInfo = (ops GPR, i32imm);
|
|
}
|
|
|
|
|
|
// so_imm - Match a 32-bit shifter_operand immediate operand, which is an
|
|
// 8-bit immediate rotated by an arbitrary number of bits.
|
|
def SOImmAsmOperand: ImmAsmOperand { let Name = "ARMSOImm"; }
|
|
def so_imm : Operand<i32>, ImmLeaf<i32, [{
|
|
return ARM_AM::getSOImmVal(Imm) != -1;
|
|
}]> {
|
|
let EncoderMethod = "getSOImmOpValue";
|
|
let ParserMatchClass = SOImmAsmOperand;
|
|
let DecoderMethod = "DecodeSOImmOperand";
|
|
}
|
|
|
|
// Break so_imm's up into two pieces. This handles immediates with up to 16
|
|
// bits set in them. This uses so_imm2part to match and so_imm2part_[12] to
|
|
// get the first/second pieces.
|
|
def so_imm2part : PatLeaf<(imm), [{
|
|
return ARM_AM::isSOImmTwoPartVal((unsigned)N->getZExtValue());
|
|
}]>;
|
|
|
|
/// arm_i32imm - True for +V6T2, or true only if so_imm2part is true.
|
|
///
|
|
def arm_i32imm : PatLeaf<(imm), [{
|
|
if (Subtarget->hasV6T2Ops())
|
|
return true;
|
|
return ARM_AM::isSOImmTwoPartVal((unsigned)N->getZExtValue());
|
|
}]>;
|
|
|
|
/// imm0_1 predicate - Immediate in the range [0,1].
|
|
def Imm0_1AsmOperand: ImmAsmOperand { let Name = "Imm0_1"; }
|
|
def imm0_1 : Operand<i32> { let ParserMatchClass = Imm0_1AsmOperand; }
|
|
|
|
/// imm0_3 predicate - Immediate in the range [0,3].
|
|
def Imm0_3AsmOperand: ImmAsmOperand { let Name = "Imm0_3"; }
|
|
def imm0_3 : Operand<i32> { let ParserMatchClass = Imm0_3AsmOperand; }
|
|
|
|
/// imm0_7 predicate - Immediate in the range [0,7].
|
|
def Imm0_7AsmOperand: ImmAsmOperand { let Name = "Imm0_7"; }
|
|
def imm0_7 : Operand<i32>, ImmLeaf<i32, [{
|
|
return Imm >= 0 && Imm < 8;
|
|
}]> {
|
|
let ParserMatchClass = Imm0_7AsmOperand;
|
|
}
|
|
|
|
/// imm8 predicate - Immediate is exactly 8.
|
|
def Imm8AsmOperand: ImmAsmOperand { let Name = "Imm8"; }
|
|
def imm8 : Operand<i32>, ImmLeaf<i32, [{ return Imm == 8; }]> {
|
|
let ParserMatchClass = Imm8AsmOperand;
|
|
}
|
|
|
|
/// imm16 predicate - Immediate is exactly 16.
|
|
def Imm16AsmOperand: ImmAsmOperand { let Name = "Imm16"; }
|
|
def imm16 : Operand<i32>, ImmLeaf<i32, [{ return Imm == 16; }]> {
|
|
let ParserMatchClass = Imm16AsmOperand;
|
|
}
|
|
|
|
/// imm32 predicate - Immediate is exactly 32.
|
|
def Imm32AsmOperand: ImmAsmOperand { let Name = "Imm32"; }
|
|
def imm32 : Operand<i32>, ImmLeaf<i32, [{ return Imm == 32; }]> {
|
|
let ParserMatchClass = Imm32AsmOperand;
|
|
}
|
|
|
|
/// imm1_7 predicate - Immediate in the range [1,7].
|
|
def Imm1_7AsmOperand: ImmAsmOperand { let Name = "Imm1_7"; }
|
|
def imm1_7 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm < 8; }]> {
|
|
let ParserMatchClass = Imm1_7AsmOperand;
|
|
}
|
|
|
|
/// imm1_15 predicate - Immediate in the range [1,15].
|
|
def Imm1_15AsmOperand: ImmAsmOperand { let Name = "Imm1_15"; }
|
|
def imm1_15 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm < 16; }]> {
|
|
let ParserMatchClass = Imm1_15AsmOperand;
|
|
}
|
|
|
|
/// imm1_31 predicate - Immediate in the range [1,31].
|
|
def Imm1_31AsmOperand: ImmAsmOperand { let Name = "Imm1_31"; }
|
|
def imm1_31 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm < 32; }]> {
|
|
let ParserMatchClass = Imm1_31AsmOperand;
|
|
}
|
|
|
|
/// imm0_15 predicate - Immediate in the range [0,15].
|
|
def Imm0_15AsmOperand: ImmAsmOperand { let Name = "Imm0_15"; }
|
|
def imm0_15 : Operand<i32>, ImmLeaf<i32, [{
|
|
return Imm >= 0 && Imm < 16;
|
|
}]> {
|
|
let ParserMatchClass = Imm0_15AsmOperand;
|
|
}
|
|
|
|
/// imm0_31 predicate - True if the 32-bit immediate is in the range [0,31].
|
|
def Imm0_31AsmOperand: ImmAsmOperand { let Name = "Imm0_31"; }
|
|
def imm0_31 : Operand<i32>, ImmLeaf<i32, [{
|
|
return Imm >= 0 && Imm < 32;
|
|
}]> {
|
|
let ParserMatchClass = Imm0_31AsmOperand;
|
|
}
|
|
|
|
/// imm0_32 predicate - True if the 32-bit immediate is in the range [0,32].
|
|
def Imm0_32AsmOperand: ImmAsmOperand { let Name = "Imm0_32"; }
|
|
def imm0_32 : Operand<i32>, ImmLeaf<i32, [{
|
|
return Imm >= 0 && Imm < 32;
|
|
}]> {
|
|
let ParserMatchClass = Imm0_32AsmOperand;
|
|
}
|
|
|
|
/// imm0_63 predicate - True if the 32-bit immediate is in the range [0,63].
|
|
def Imm0_63AsmOperand: ImmAsmOperand { let Name = "Imm0_63"; }
|
|
def imm0_63 : Operand<i32>, ImmLeaf<i32, [{
|
|
return Imm >= 0 && Imm < 64;
|
|
}]> {
|
|
let ParserMatchClass = Imm0_63AsmOperand;
|
|
}
|
|
|
|
/// imm0_255 predicate - Immediate in the range [0,255].
|
|
def Imm0_255AsmOperand : ImmAsmOperand { let Name = "Imm0_255"; }
|
|
def imm0_255 : Operand<i32>, ImmLeaf<i32, [{ return Imm >= 0 && Imm < 256; }]> {
|
|
let ParserMatchClass = Imm0_255AsmOperand;
|
|
}
|
|
|
|
/// imm0_65535 - An immediate is in the range [0.65535].
|
|
def Imm0_65535AsmOperand: ImmAsmOperand { let Name = "Imm0_65535"; }
|
|
def imm0_65535 : Operand<i32>, ImmLeaf<i32, [{
|
|
return Imm >= 0 && Imm < 65536;
|
|
}]> {
|
|
let ParserMatchClass = Imm0_65535AsmOperand;
|
|
}
|
|
|
|
// imm0_65535_expr - For movt/movw - 16-bit immediate that can also reference
|
|
// a relocatable expression.
|
|
//
|
|
// FIXME: This really needs a Thumb version separate from the ARM version.
|
|
// While the range is the same, and can thus use the same match class,
|
|
// the encoding is different so it should have a different encoder method.
|
|
def Imm0_65535ExprAsmOperand: ImmAsmOperand { let Name = "Imm0_65535Expr"; }
|
|
def imm0_65535_expr : Operand<i32> {
|
|
let EncoderMethod = "getHiLo16ImmOpValue";
|
|
let ParserMatchClass = Imm0_65535ExprAsmOperand;
|
|
}
|
|
|
|
/// imm24b - True if the 32-bit immediate is encodable in 24 bits.
|
|
def Imm24bitAsmOperand: ImmAsmOperand { let Name = "Imm24bit"; }
|
|
def imm24b : Operand<i32>, ImmLeaf<i32, [{
|
|
return Imm >= 0 && Imm <= 0xffffff;
|
|
}]> {
|
|
let ParserMatchClass = Imm24bitAsmOperand;
|
|
}
|
|
|
|
|
|
/// bf_inv_mask_imm predicate - An AND mask to clear an arbitrary width bitfield
|
|
/// e.g., 0xf000ffff
|
|
def BitfieldAsmOperand : AsmOperandClass {
|
|
let Name = "Bitfield";
|
|
let ParserMethod = "parseBitfield";
|
|
}
|
|
|
|
def bf_inv_mask_imm : Operand<i32>,
|
|
PatLeaf<(imm), [{
|
|
return ARM::isBitFieldInvertedMask(N->getZExtValue());
|
|
}] > {
|
|
let EncoderMethod = "getBitfieldInvertedMaskOpValue";
|
|
let PrintMethod = "printBitfieldInvMaskImmOperand";
|
|
let DecoderMethod = "DecodeBitfieldMaskOperand";
|
|
let ParserMatchClass = BitfieldAsmOperand;
|
|
}
|
|
|
|
def imm1_32_XFORM: SDNodeXForm<imm, [{
|
|
return CurDAG->getTargetConstant((int)N->getZExtValue() - 1, MVT::i32);
|
|
}]>;
|
|
def Imm1_32AsmOperand: AsmOperandClass { let Name = "Imm1_32"; }
|
|
def imm1_32 : Operand<i32>, PatLeaf<(imm), [{
|
|
uint64_t Imm = N->getZExtValue();
|
|
return Imm > 0 && Imm <= 32;
|
|
}],
|
|
imm1_32_XFORM> {
|
|
let PrintMethod = "printImmPlusOneOperand";
|
|
let ParserMatchClass = Imm1_32AsmOperand;
|
|
}
|
|
|
|
def imm1_16_XFORM: SDNodeXForm<imm, [{
|
|
return CurDAG->getTargetConstant((int)N->getZExtValue() - 1, MVT::i32);
|
|
}]>;
|
|
def Imm1_16AsmOperand: AsmOperandClass { let Name = "Imm1_16"; }
|
|
def imm1_16 : Operand<i32>, PatLeaf<(imm), [{ return Imm > 0 && Imm <= 16; }],
|
|
imm1_16_XFORM> {
|
|
let PrintMethod = "printImmPlusOneOperand";
|
|
let ParserMatchClass = Imm1_16AsmOperand;
|
|
}
|
|
|
|
// Define ARM specific addressing modes.
|
|
// addrmode_imm12 := reg +/- imm12
|
|
//
|
|
def MemImm12OffsetAsmOperand : AsmOperandClass { let Name = "MemImm12Offset"; }
|
|
def addrmode_imm12 : Operand<i32>,
|
|
ComplexPattern<i32, 2, "SelectAddrModeImm12", []> {
|
|
// 12-bit immediate operand. Note that instructions using this encode
|
|
// #0 and #-0 differently. We flag #-0 as the magic value INT32_MIN. All other
|
|
// immediate values are as normal.
|
|
|
|
let EncoderMethod = "getAddrModeImm12OpValue";
|
|
let PrintMethod = "printAddrModeImm12Operand";
|
|
let DecoderMethod = "DecodeAddrModeImm12Operand";
|
|
let ParserMatchClass = MemImm12OffsetAsmOperand;
|
|
let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
|
|
}
|
|
// ldst_so_reg := reg +/- reg shop imm
|
|
//
|
|
def MemRegOffsetAsmOperand : AsmOperandClass { let Name = "MemRegOffset"; }
|
|
def ldst_so_reg : Operand<i32>,
|
|
ComplexPattern<i32, 3, "SelectLdStSOReg", []> {
|
|
let EncoderMethod = "getLdStSORegOpValue";
|
|
// FIXME: Simplify the printer
|
|
let PrintMethod = "printAddrMode2Operand";
|
|
let DecoderMethod = "DecodeSORegMemOperand";
|
|
let ParserMatchClass = MemRegOffsetAsmOperand;
|
|
let MIOperandInfo = (ops GPR:$base, GPRnopc:$offsreg, i32imm:$shift);
|
|
}
|
|
|
|
// postidx_imm8 := +/- [0,255]
|
|
//
|
|
// 9 bit value:
|
|
// {8} 1 is imm8 is non-negative. 0 otherwise.
|
|
// {7-0} [0,255] imm8 value.
|
|
def PostIdxImm8AsmOperand : AsmOperandClass { let Name = "PostIdxImm8"; }
|
|
def postidx_imm8 : Operand<i32> {
|
|
let PrintMethod = "printPostIdxImm8Operand";
|
|
let ParserMatchClass = PostIdxImm8AsmOperand;
|
|
let MIOperandInfo = (ops i32imm);
|
|
}
|
|
|
|
// postidx_imm8s4 := +/- [0,1020]
|
|
//
|
|
// 9 bit value:
|
|
// {8} 1 is imm8 is non-negative. 0 otherwise.
|
|
// {7-0} [0,255] imm8 value, scaled by 4.
|
|
def PostIdxImm8s4AsmOperand : AsmOperandClass { let Name = "PostIdxImm8s4"; }
|
|
def postidx_imm8s4 : Operand<i32> {
|
|
let PrintMethod = "printPostIdxImm8s4Operand";
|
|
let ParserMatchClass = PostIdxImm8s4AsmOperand;
|
|
let MIOperandInfo = (ops i32imm);
|
|
}
|
|
|
|
|
|
// postidx_reg := +/- reg
|
|
//
|
|
def PostIdxRegAsmOperand : AsmOperandClass {
|
|
let Name = "PostIdxReg";
|
|
let ParserMethod = "parsePostIdxReg";
|
|
}
|
|
def postidx_reg : Operand<i32> {
|
|
let EncoderMethod = "getPostIdxRegOpValue";
|
|
let DecoderMethod = "DecodePostIdxReg";
|
|
let PrintMethod = "printPostIdxRegOperand";
|
|
let ParserMatchClass = PostIdxRegAsmOperand;
|
|
let MIOperandInfo = (ops GPRnopc, i32imm);
|
|
}
|
|
|
|
|
|
// addrmode2 := reg +/- imm12
|
|
// := reg +/- reg shop imm
|
|
//
|
|
// FIXME: addrmode2 should be refactored the rest of the way to always
|
|
// use explicit imm vs. reg versions above (addrmode_imm12 and ldst_so_reg).
|
|
def AddrMode2AsmOperand : AsmOperandClass { let Name = "AddrMode2"; }
|
|
def addrmode2 : Operand<i32>,
|
|
ComplexPattern<i32, 3, "SelectAddrMode2", []> {
|
|
let EncoderMethod = "getAddrMode2OpValue";
|
|
let PrintMethod = "printAddrMode2Operand";
|
|
let ParserMatchClass = AddrMode2AsmOperand;
|
|
let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
|
|
}
|
|
|
|
def PostIdxRegShiftedAsmOperand : AsmOperandClass {
|
|
let Name = "PostIdxRegShifted";
|
|
let ParserMethod = "parsePostIdxReg";
|
|
}
|
|
def am2offset_reg : Operand<i32>,
|
|
ComplexPattern<i32, 2, "SelectAddrMode2OffsetReg",
|
|
[], [SDNPWantRoot]> {
|
|
let EncoderMethod = "getAddrMode2OffsetOpValue";
|
|
let PrintMethod = "printAddrMode2OffsetOperand";
|
|
// When using this for assembly, it's always as a post-index offset.
|
|
let ParserMatchClass = PostIdxRegShiftedAsmOperand;
|
|
let MIOperandInfo = (ops GPRnopc, i32imm);
|
|
}
|
|
|
|
// FIXME: am2offset_imm should only need the immediate, not the GPR. Having
|
|
// the GPR is purely vestigal at this point.
|
|
def AM2OffsetImmAsmOperand : AsmOperandClass { let Name = "AM2OffsetImm"; }
|
|
def am2offset_imm : Operand<i32>,
|
|
ComplexPattern<i32, 2, "SelectAddrMode2OffsetImm",
|
|
[], [SDNPWantRoot]> {
|
|
let EncoderMethod = "getAddrMode2OffsetOpValue";
|
|
let PrintMethod = "printAddrMode2OffsetOperand";
|
|
let ParserMatchClass = AM2OffsetImmAsmOperand;
|
|
let MIOperandInfo = (ops GPRnopc, i32imm);
|
|
}
|
|
|
|
|
|
// addrmode3 := reg +/- reg
|
|
// addrmode3 := reg +/- imm8
|
|
//
|
|
// FIXME: split into imm vs. reg versions.
|
|
def AddrMode3AsmOperand : AsmOperandClass { let Name = "AddrMode3"; }
|
|
def addrmode3 : Operand<i32>,
|
|
ComplexPattern<i32, 3, "SelectAddrMode3", []> {
|
|
let EncoderMethod = "getAddrMode3OpValue";
|
|
let PrintMethod = "printAddrMode3Operand";
|
|
let ParserMatchClass = AddrMode3AsmOperand;
|
|
let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
|
|
}
|
|
|
|
// FIXME: split into imm vs. reg versions.
|
|
// FIXME: parser method to handle +/- register.
|
|
def AM3OffsetAsmOperand : AsmOperandClass {
|
|
let Name = "AM3Offset";
|
|
let ParserMethod = "parseAM3Offset";
|
|
}
|
|
def am3offset : Operand<i32>,
|
|
ComplexPattern<i32, 2, "SelectAddrMode3Offset",
|
|
[], [SDNPWantRoot]> {
|
|
let EncoderMethod = "getAddrMode3OffsetOpValue";
|
|
let PrintMethod = "printAddrMode3OffsetOperand";
|
|
let ParserMatchClass = AM3OffsetAsmOperand;
|
|
let MIOperandInfo = (ops GPR, i32imm);
|
|
}
|
|
|
|
// ldstm_mode := {ia, ib, da, db}
|
|
//
|
|
def ldstm_mode : OptionalDefOperand<OtherVT, (ops i32), (ops (i32 1))> {
|
|
let EncoderMethod = "getLdStmModeOpValue";
|
|
let PrintMethod = "printLdStmModeOperand";
|
|
}
|
|
|
|
// addrmode5 := reg +/- imm8*4
|
|
//
|
|
def AddrMode5AsmOperand : AsmOperandClass { let Name = "AddrMode5"; }
|
|
def addrmode5 : Operand<i32>,
|
|
ComplexPattern<i32, 2, "SelectAddrMode5", []> {
|
|
let PrintMethod = "printAddrMode5Operand";
|
|
let EncoderMethod = "getAddrMode5OpValue";
|
|
let DecoderMethod = "DecodeAddrMode5Operand";
|
|
let ParserMatchClass = AddrMode5AsmOperand;
|
|
let MIOperandInfo = (ops GPR:$base, i32imm);
|
|
}
|
|
|
|
// addrmode6 := reg with optional alignment
|
|
//
|
|
def AddrMode6AsmOperand : AsmOperandClass { let Name = "AlignedMemory"; }
|
|
def addrmode6 : Operand<i32>,
|
|
ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
|
|
let PrintMethod = "printAddrMode6Operand";
|
|
let MIOperandInfo = (ops GPR:$addr, i32imm:$align);
|
|
let EncoderMethod = "getAddrMode6AddressOpValue";
|
|
let DecoderMethod = "DecodeAddrMode6Operand";
|
|
let ParserMatchClass = AddrMode6AsmOperand;
|
|
}
|
|
|
|
def am6offset : Operand<i32>,
|
|
ComplexPattern<i32, 1, "SelectAddrMode6Offset",
|
|
[], [SDNPWantRoot]> {
|
|
let PrintMethod = "printAddrMode6OffsetOperand";
|
|
let MIOperandInfo = (ops GPR);
|
|
let EncoderMethod = "getAddrMode6OffsetOpValue";
|
|
let DecoderMethod = "DecodeGPRRegisterClass";
|
|
}
|
|
|
|
// Special version of addrmode6 to handle alignment encoding for VST1/VLD1
|
|
// (single element from one lane) for size 32.
|
|
def addrmode6oneL32 : Operand<i32>,
|
|
ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
|
|
let PrintMethod = "printAddrMode6Operand";
|
|
let MIOperandInfo = (ops GPR:$addr, i32imm);
|
|
let EncoderMethod = "getAddrMode6OneLane32AddressOpValue";
|
|
}
|
|
|
|
// Special version of addrmode6 to handle alignment encoding for VLD-dup
|
|
// instructions, specifically VLD4-dup.
|
|
def addrmode6dup : Operand<i32>,
|
|
ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
|
|
let PrintMethod = "printAddrMode6Operand";
|
|
let MIOperandInfo = (ops GPR:$addr, i32imm);
|
|
let EncoderMethod = "getAddrMode6DupAddressOpValue";
|
|
// FIXME: This is close, but not quite right. The alignment specifier is
|
|
// different.
|
|
let ParserMatchClass = AddrMode6AsmOperand;
|
|
}
|
|
|
|
// addrmodepc := pc + reg
|
|
//
|
|
def addrmodepc : Operand<i32>,
|
|
ComplexPattern<i32, 2, "SelectAddrModePC", []> {
|
|
let PrintMethod = "printAddrModePCOperand";
|
|
let MIOperandInfo = (ops GPR, i32imm);
|
|
}
|
|
|
|
// addr_offset_none := reg
|
|
//
|
|
def MemNoOffsetAsmOperand : AsmOperandClass { let Name = "MemNoOffset"; }
|
|
def addr_offset_none : Operand<i32>,
|
|
ComplexPattern<i32, 1, "SelectAddrOffsetNone", []> {
|
|
let PrintMethod = "printAddrMode7Operand";
|
|
let DecoderMethod = "DecodeAddrMode7Operand";
|
|
let ParserMatchClass = MemNoOffsetAsmOperand;
|
|
let MIOperandInfo = (ops GPR:$base);
|
|
}
|
|
|
|
def nohash_imm : Operand<i32> {
|
|
let PrintMethod = "printNoHashImmediate";
|
|
}
|
|
|
|
def CoprocNumAsmOperand : AsmOperandClass {
|
|
let Name = "CoprocNum";
|
|
let ParserMethod = "parseCoprocNumOperand";
|
|
}
|
|
def p_imm : Operand<i32> {
|
|
let PrintMethod = "printPImmediate";
|
|
let ParserMatchClass = CoprocNumAsmOperand;
|
|
let DecoderMethod = "DecodeCoprocessor";
|
|
}
|
|
|
|
def pf_imm : Operand<i32> {
|
|
let PrintMethod = "printPImmediate";
|
|
let ParserMatchClass = CoprocNumAsmOperand;
|
|
}
|
|
|
|
def CoprocRegAsmOperand : AsmOperandClass {
|
|
let Name = "CoprocReg";
|
|
let ParserMethod = "parseCoprocRegOperand";
|
|
}
|
|
def c_imm : Operand<i32> {
|
|
let PrintMethod = "printCImmediate";
|
|
let ParserMatchClass = CoprocRegAsmOperand;
|
|
}
|
|
def CoprocOptionAsmOperand : AsmOperandClass {
|
|
let Name = "CoprocOption";
|
|
let ParserMethod = "parseCoprocOptionOperand";
|
|
}
|
|
def coproc_option_imm : Operand<i32> {
|
|
let PrintMethod = "printCoprocOptionImm";
|
|
let ParserMatchClass = CoprocOptionAsmOperand;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
include "ARMInstrFormats.td"
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Multiclass helpers...
|
|
//
|
|
|
|
/// AsI1_bin_irs - Defines a set of (op r, {so_imm|r|so_reg}) patterns for a
|
|
/// binop that produces a value.
|
|
multiclass AsI1_bin_irs<bits<4> opcod, string opc,
|
|
InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
|
|
PatFrag opnode, string baseOpc, bit Commutable = 0> {
|
|
// The register-immediate version is re-materializable. This is useful
|
|
// in particular for taking the address of a local.
|
|
let isReMaterializable = 1 in {
|
|
def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
|
|
iii, opc, "\t$Rd, $Rn, $imm",
|
|
[(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> imm;
|
|
let Inst{25} = 1;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-0} = imm;
|
|
}
|
|
}
|
|
def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
|
|
iir, opc, "\t$Rd, $Rn, $Rm",
|
|
[(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let Inst{25} = 0;
|
|
let isCommutable = Commutable;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-4} = 0b00000000;
|
|
let Inst{3-0} = Rm;
|
|
}
|
|
|
|
def rsi : AsI1<opcod, (outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm,
|
|
iis, opc, "\t$Rd, $Rn, $shift",
|
|
[(set GPR:$Rd, (opnode GPR:$Rn, so_reg_imm:$shift))]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-5} = shift{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = shift{3-0};
|
|
}
|
|
|
|
def rsr : AsI1<opcod, (outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_reg_reg:$shift), DPSoRegRegFrm,
|
|
iis, opc, "\t$Rd, $Rn, $shift",
|
|
[(set GPR:$Rd, (opnode GPR:$Rn, so_reg_reg:$shift))]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-8} = shift{11-8};
|
|
let Inst{7} = 0;
|
|
let Inst{6-5} = shift{6-5};
|
|
let Inst{4} = 1;
|
|
let Inst{3-0} = shift{3-0};
|
|
}
|
|
|
|
// Assembly aliases for optional destination operand when it's the same
|
|
// as the source operand.
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "ri")) GPR:$Rdn, GPR:$Rdn,
|
|
so_imm:$imm, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $Rm"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rr")) GPR:$Rdn, GPR:$Rdn,
|
|
GPR:$Rm, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rsi")) GPR:$Rdn, GPR:$Rdn,
|
|
so_reg_imm:$shift, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rsr")) GPR:$Rdn, GPR:$Rdn,
|
|
so_reg_reg:$shift, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
|
|
}
|
|
|
|
/// AsI1_rbin_irs - Same as AsI1_bin_irs except the order of operands are
|
|
/// reversed. The 'rr' form is only defined for the disassembler; for codegen
|
|
/// it is equivalent to the AsI1_bin_irs counterpart.
|
|
multiclass AsI1_rbin_irs<bits<4> opcod, string opc,
|
|
InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
|
|
PatFrag opnode, string baseOpc, bit Commutable = 0> {
|
|
// The register-immediate version is re-materializable. This is useful
|
|
// in particular for taking the address of a local.
|
|
let isReMaterializable = 1 in {
|
|
def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
|
|
iii, opc, "\t$Rd, $Rn, $imm",
|
|
[(set GPR:$Rd, (opnode so_imm:$imm, GPR:$Rn))]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> imm;
|
|
let Inst{25} = 1;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-0} = imm;
|
|
}
|
|
}
|
|
def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
|
|
iir, opc, "\t$Rd, $Rn, $Rm",
|
|
[/* pattern left blank */]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let Inst{11-4} = 0b00000000;
|
|
let Inst{25} = 0;
|
|
let Inst{3-0} = Rm;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = Rn;
|
|
}
|
|
|
|
def rsi : AsI1<opcod, (outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm,
|
|
iis, opc, "\t$Rd, $Rn, $shift",
|
|
[(set GPR:$Rd, (opnode so_reg_imm:$shift, GPR:$Rn))]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-5} = shift{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = shift{3-0};
|
|
}
|
|
|
|
def rsr : AsI1<opcod, (outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_reg_reg:$shift), DPSoRegRegFrm,
|
|
iis, opc, "\t$Rd, $Rn, $shift",
|
|
[(set GPR:$Rd, (opnode so_reg_reg:$shift, GPR:$Rn))]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-8} = shift{11-8};
|
|
let Inst{7} = 0;
|
|
let Inst{6-5} = shift{6-5};
|
|
let Inst{4} = 1;
|
|
let Inst{3-0} = shift{3-0};
|
|
}
|
|
|
|
// Assembly aliases for optional destination operand when it's the same
|
|
// as the source operand.
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "ri")) GPR:$Rdn, GPR:$Rdn,
|
|
so_imm:$imm, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $Rm"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rr")) GPR:$Rdn, GPR:$Rdn,
|
|
GPR:$Rm, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rsi")) GPR:$Rdn, GPR:$Rdn,
|
|
so_reg_imm:$shift, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rsr")) GPR:$Rdn, GPR:$Rdn,
|
|
so_reg_reg:$shift, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
|
|
}
|
|
|
|
/// AsI1_bin_s_irs - Same as AsI1_bin_irs except it sets the 's' bit by default.
|
|
///
|
|
/// These opcodes will be converted to the real non-S opcodes by
|
|
/// AdjustInstrPostInstrSelection after giving them an optional CPSR operand.
|
|
let hasPostISelHook = 1, Defs = [CPSR] in {
|
|
multiclass AsI1_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
|
|
InstrItinClass iis, PatFrag opnode,
|
|
bit Commutable = 0> {
|
|
def ri : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm, pred:$p),
|
|
4, iii,
|
|
[(set GPR:$Rd, CPSR, (opnode GPR:$Rn, so_imm:$imm))]>;
|
|
|
|
def rr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, pred:$p),
|
|
4, iir,
|
|
[(set GPR:$Rd, CPSR, (opnode GPR:$Rn, GPR:$Rm))]> {
|
|
let isCommutable = Commutable;
|
|
}
|
|
def rsi : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_reg_imm:$shift, pred:$p),
|
|
4, iis,
|
|
[(set GPR:$Rd, CPSR, (opnode GPR:$Rn,
|
|
so_reg_imm:$shift))]>;
|
|
|
|
def rsr : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_reg_reg:$shift, pred:$p),
|
|
4, iis,
|
|
[(set GPR:$Rd, CPSR, (opnode GPR:$Rn,
|
|
so_reg_reg:$shift))]>;
|
|
}
|
|
}
|
|
|
|
/// AsI1_rbin_s_is - Same as AsI1_bin_s_irs, except selection DAG
|
|
/// operands are reversed.
|
|
let hasPostISelHook = 1, Defs = [CPSR] in {
|
|
multiclass AsI1_rbin_s_is<InstrItinClass iii, InstrItinClass iir,
|
|
InstrItinClass iis, PatFrag opnode,
|
|
bit Commutable = 0> {
|
|
def ri : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm, pred:$p),
|
|
4, iii,
|
|
[(set GPR:$Rd, CPSR, (opnode so_imm:$imm, GPR:$Rn))]>;
|
|
|
|
def rsi : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_reg_imm:$shift, pred:$p),
|
|
4, iis,
|
|
[(set GPR:$Rd, CPSR, (opnode so_reg_imm:$shift,
|
|
GPR:$Rn))]>;
|
|
|
|
def rsr : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_reg_reg:$shift, pred:$p),
|
|
4, iis,
|
|
[(set GPR:$Rd, CPSR, (opnode so_reg_reg:$shift,
|
|
GPR:$Rn))]>;
|
|
}
|
|
}
|
|
|
|
/// AI1_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
|
|
/// patterns. Similar to AsI1_bin_irs except the instruction does not produce
|
|
/// a explicit result, only implicitly set CPSR.
|
|
let isCompare = 1, Defs = [CPSR] in {
|
|
multiclass AI1_cmp_irs<bits<4> opcod, string opc,
|
|
InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
|
|
PatFrag opnode, bit Commutable = 0> {
|
|
def ri : AI1<opcod, (outs), (ins GPR:$Rn, so_imm:$imm), DPFrm, iii,
|
|
opc, "\t$Rn, $imm",
|
|
[(opnode GPR:$Rn, so_imm:$imm)]> {
|
|
bits<4> Rn;
|
|
bits<12> imm;
|
|
let Inst{25} = 1;
|
|
let Inst{20} = 1;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = 0b0000;
|
|
let Inst{11-0} = imm;
|
|
|
|
let Unpredictable{15-12} = 0b1111;
|
|
}
|
|
def rr : AI1<opcod, (outs), (ins GPR:$Rn, GPR:$Rm), DPFrm, iir,
|
|
opc, "\t$Rn, $Rm",
|
|
[(opnode GPR:$Rn, GPR:$Rm)]> {
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let isCommutable = Commutable;
|
|
let Inst{25} = 0;
|
|
let Inst{20} = 1;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = 0b0000;
|
|
let Inst{11-4} = 0b00000000;
|
|
let Inst{3-0} = Rm;
|
|
|
|
let Unpredictable{15-12} = 0b1111;
|
|
}
|
|
def rsi : AI1<opcod, (outs),
|
|
(ins GPR:$Rn, so_reg_imm:$shift), DPSoRegImmFrm, iis,
|
|
opc, "\t$Rn, $shift",
|
|
[(opnode GPR:$Rn, so_reg_imm:$shift)]> {
|
|
bits<4> Rn;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{20} = 1;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = 0b0000;
|
|
let Inst{11-5} = shift{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = shift{3-0};
|
|
|
|
let Unpredictable{15-12} = 0b1111;
|
|
}
|
|
def rsr : AI1<opcod, (outs),
|
|
(ins GPRnopc:$Rn, so_reg_reg:$shift), DPSoRegRegFrm, iis,
|
|
opc, "\t$Rn, $shift",
|
|
[(opnode GPRnopc:$Rn, so_reg_reg:$shift)]> {
|
|
bits<4> Rn;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{20} = 1;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = 0b0000;
|
|
let Inst{11-8} = shift{11-8};
|
|
let Inst{7} = 0;
|
|
let Inst{6-5} = shift{6-5};
|
|
let Inst{4} = 1;
|
|
let Inst{3-0} = shift{3-0};
|
|
|
|
let Unpredictable{15-12} = 0b1111;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
/// AI_ext_rrot - A unary operation with two forms: one whose operand is a
|
|
/// register and one whose operand is a register rotated by 8/16/24.
|
|
/// FIXME: Remove the 'r' variant. Its rot_imm is zero.
|
|
class AI_ext_rrot<bits<8> opcod, string opc, PatFrag opnode>
|
|
: AExtI<opcod, (outs GPRnopc:$Rd), (ins GPRnopc:$Rm, rot_imm:$rot),
|
|
IIC_iEXTr, opc, "\t$Rd, $Rm$rot",
|
|
[(set GPRnopc:$Rd, (opnode (rotr GPRnopc:$Rm, rot_imm:$rot)))]>,
|
|
Requires<[IsARM, HasV6]> {
|
|
bits<4> Rd;
|
|
bits<4> Rm;
|
|
bits<2> rot;
|
|
let Inst{19-16} = 0b1111;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-10} = rot;
|
|
let Inst{3-0} = Rm;
|
|
}
|
|
|
|
class AI_ext_rrot_np<bits<8> opcod, string opc>
|
|
: AExtI<opcod, (outs GPRnopc:$Rd), (ins GPRnopc:$Rm, rot_imm:$rot),
|
|
IIC_iEXTr, opc, "\t$Rd, $Rm$rot", []>,
|
|
Requires<[IsARM, HasV6]> {
|
|
bits<2> rot;
|
|
let Inst{19-16} = 0b1111;
|
|
let Inst{11-10} = rot;
|
|
}
|
|
|
|
/// AI_exta_rrot - A binary operation with two forms: one whose operand is a
|
|
/// register and one whose operand is a register rotated by 8/16/24.
|
|
class AI_exta_rrot<bits<8> opcod, string opc, PatFrag opnode>
|
|
: AExtI<opcod, (outs GPRnopc:$Rd), (ins GPR:$Rn, GPRnopc:$Rm, rot_imm:$rot),
|
|
IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm$rot",
|
|
[(set GPRnopc:$Rd, (opnode GPR:$Rn,
|
|
(rotr GPRnopc:$Rm, rot_imm:$rot)))]>,
|
|
Requires<[IsARM, HasV6]> {
|
|
bits<4> Rd;
|
|
bits<4> Rm;
|
|
bits<4> Rn;
|
|
bits<2> rot;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-10} = rot;
|
|
let Inst{9-4} = 0b000111;
|
|
let Inst{3-0} = Rm;
|
|
}
|
|
|
|
class AI_exta_rrot_np<bits<8> opcod, string opc>
|
|
: AExtI<opcod, (outs GPRnopc:$Rd), (ins GPR:$Rn, GPRnopc:$Rm, rot_imm:$rot),
|
|
IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm$rot", []>,
|
|
Requires<[IsARM, HasV6]> {
|
|
bits<4> Rn;
|
|
bits<2> rot;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{11-10} = rot;
|
|
}
|
|
|
|
/// AI1_adde_sube_irs - Define instructions and patterns for adde and sube.
|
|
multiclass AI1_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
|
|
string baseOpc, bit Commutable = 0> {
|
|
let hasPostISelHook = 1, Defs = [CPSR], Uses = [CPSR] in {
|
|
def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
|
|
DPFrm, IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
|
|
[(set GPR:$Rd, CPSR, (opnode GPR:$Rn, so_imm:$imm, CPSR))]>,
|
|
Requires<[IsARM]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> imm;
|
|
let Inst{25} = 1;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{11-0} = imm;
|
|
}
|
|
def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
DPFrm, IIC_iALUr, opc, "\t$Rd, $Rn, $Rm",
|
|
[(set GPR:$Rd, CPSR, (opnode GPR:$Rn, GPR:$Rm, CPSR))]>,
|
|
Requires<[IsARM]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let Inst{11-4} = 0b00000000;
|
|
let Inst{25} = 0;
|
|
let isCommutable = Commutable;
|
|
let Inst{3-0} = Rm;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = Rn;
|
|
}
|
|
def rsi : AsI1<opcod, (outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_reg_imm:$shift),
|
|
DPSoRegImmFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
|
|
[(set GPR:$Rd, CPSR, (opnode GPR:$Rn, so_reg_imm:$shift, CPSR))]>,
|
|
Requires<[IsARM]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-5} = shift{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = shift{3-0};
|
|
}
|
|
def rsr : AsI1<opcod, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, so_reg_reg:$shift),
|
|
DPSoRegRegFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
|
|
[(set GPRnopc:$Rd, CPSR, (opnode GPRnopc:$Rn, so_reg_reg:$shift, CPSR))]>,
|
|
Requires<[IsARM]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-8} = shift{11-8};
|
|
let Inst{7} = 0;
|
|
let Inst{6-5} = shift{6-5};
|
|
let Inst{4} = 1;
|
|
let Inst{3-0} = shift{3-0};
|
|
}
|
|
}
|
|
|
|
// Assembly aliases for optional destination operand when it's the same
|
|
// as the source operand.
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "ri")) GPR:$Rdn, GPR:$Rdn,
|
|
so_imm:$imm, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $Rm"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rr")) GPR:$Rdn, GPR:$Rdn,
|
|
GPR:$Rm, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rsi")) GPR:$Rdn, GPR:$Rdn,
|
|
so_reg_imm:$shift, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rsr")) GPRnopc:$Rdn, GPRnopc:$Rdn,
|
|
so_reg_reg:$shift, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
}
|
|
|
|
/// AI1_rsc_irs - Define instructions and patterns for rsc
|
|
multiclass AI1_rsc_irs<bits<4> opcod, string opc, PatFrag opnode,
|
|
string baseOpc> {
|
|
let hasPostISelHook = 1, Defs = [CPSR], Uses = [CPSR] in {
|
|
def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
|
|
DPFrm, IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
|
|
[(set GPR:$Rd, CPSR, (opnode so_imm:$imm, GPR:$Rn, CPSR))]>,
|
|
Requires<[IsARM]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> imm;
|
|
let Inst{25} = 1;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{11-0} = imm;
|
|
}
|
|
def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
DPFrm, IIC_iALUr, opc, "\t$Rd, $Rn, $Rm",
|
|
[/* pattern left blank */]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let Inst{11-4} = 0b00000000;
|
|
let Inst{25} = 0;
|
|
let Inst{3-0} = Rm;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = Rn;
|
|
}
|
|
def rsi : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_imm:$shift),
|
|
DPSoRegImmFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
|
|
[(set GPR:$Rd, CPSR, (opnode so_reg_imm:$shift, GPR:$Rn, CPSR))]>,
|
|
Requires<[IsARM]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-5} = shift{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = shift{3-0};
|
|
}
|
|
def rsr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_reg_reg:$shift),
|
|
DPSoRegRegFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
|
|
[(set GPR:$Rd, CPSR, (opnode so_reg_reg:$shift, GPR:$Rn, CPSR))]>,
|
|
Requires<[IsARM]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-8} = shift{11-8};
|
|
let Inst{7} = 0;
|
|
let Inst{6-5} = shift{6-5};
|
|
let Inst{4} = 1;
|
|
let Inst{3-0} = shift{3-0};
|
|
}
|
|
}
|
|
|
|
// Assembly aliases for optional destination operand when it's the same
|
|
// as the source operand.
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "ri")) GPR:$Rdn, GPR:$Rdn,
|
|
so_imm:$imm, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $Rm"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rr")) GPR:$Rdn, GPR:$Rdn,
|
|
GPR:$Rm, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rsi")) GPR:$Rdn, GPR:$Rdn,
|
|
so_reg_imm:$shift, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"),
|
|
(!cast<Instruction>(!strconcat(baseOpc, "rsr")) GPR:$Rdn, GPR:$Rdn,
|
|
so_reg_reg:$shift, pred:$p,
|
|
cc_out:$s)>,
|
|
Requires<[IsARM]>;
|
|
}
|
|
|
|
let canFoldAsLoad = 1, isReMaterializable = 1 in {
|
|
multiclass AI_ldr1<bit isByte, string opc, InstrItinClass iii,
|
|
InstrItinClass iir, PatFrag opnode> {
|
|
// Note: We use the complex addrmode_imm12 rather than just an input
|
|
// GPR and a constrained immediate so that we can use this to match
|
|
// frame index references and avoid matching constant pool references.
|
|
def i12: AI2ldst<0b010, 1, isByte, (outs GPR:$Rt), (ins addrmode_imm12:$addr),
|
|
AddrMode_i12, LdFrm, iii, opc, "\t$Rt, $addr",
|
|
[(set GPR:$Rt, (opnode addrmode_imm12:$addr))]> {
|
|
bits<4> Rt;
|
|
bits<17> addr;
|
|
let Inst{23} = addr{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = addr{16-13}; // Rn
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-0} = addr{11-0}; // imm12
|
|
}
|
|
def rs : AI2ldst<0b011, 1, isByte, (outs GPR:$Rt), (ins ldst_so_reg:$shift),
|
|
AddrModeNone, LdFrm, iir, opc, "\t$Rt, $shift",
|
|
[(set GPR:$Rt, (opnode ldst_so_reg:$shift))]> {
|
|
bits<4> Rt;
|
|
bits<17> shift;
|
|
let shift{4} = 0; // Inst{4} = 0
|
|
let Inst{23} = shift{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = shift{16-13}; // Rn
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-0} = shift{11-0};
|
|
}
|
|
}
|
|
}
|
|
|
|
let canFoldAsLoad = 1, isReMaterializable = 1 in {
|
|
multiclass AI_ldr1nopc<bit isByte, string opc, InstrItinClass iii,
|
|
InstrItinClass iir, PatFrag opnode> {
|
|
// Note: We use the complex addrmode_imm12 rather than just an input
|
|
// GPR and a constrained immediate so that we can use this to match
|
|
// frame index references and avoid matching constant pool references.
|
|
def i12: AI2ldst<0b010, 1, isByte, (outs GPRnopc:$Rt), (ins addrmode_imm12:$addr),
|
|
AddrMode_i12, LdFrm, iii, opc, "\t$Rt, $addr",
|
|
[(set GPRnopc:$Rt, (opnode addrmode_imm12:$addr))]> {
|
|
bits<4> Rt;
|
|
bits<17> addr;
|
|
let Inst{23} = addr{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = addr{16-13}; // Rn
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-0} = addr{11-0}; // imm12
|
|
}
|
|
def rs : AI2ldst<0b011, 1, isByte, (outs GPRnopc:$Rt), (ins ldst_so_reg:$shift),
|
|
AddrModeNone, LdFrm, iir, opc, "\t$Rt, $shift",
|
|
[(set GPRnopc:$Rt, (opnode ldst_so_reg:$shift))]> {
|
|
bits<4> Rt;
|
|
bits<17> shift;
|
|
let shift{4} = 0; // Inst{4} = 0
|
|
let Inst{23} = shift{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = shift{16-13}; // Rn
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-0} = shift{11-0};
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
multiclass AI_str1<bit isByte, string opc, InstrItinClass iii,
|
|
InstrItinClass iir, PatFrag opnode> {
|
|
// Note: We use the complex addrmode_imm12 rather than just an input
|
|
// GPR and a constrained immediate so that we can use this to match
|
|
// frame index references and avoid matching constant pool references.
|
|
def i12 : AI2ldst<0b010, 0, isByte, (outs),
|
|
(ins GPR:$Rt, addrmode_imm12:$addr),
|
|
AddrMode_i12, StFrm, iii, opc, "\t$Rt, $addr",
|
|
[(opnode GPR:$Rt, addrmode_imm12:$addr)]> {
|
|
bits<4> Rt;
|
|
bits<17> addr;
|
|
let Inst{23} = addr{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = addr{16-13}; // Rn
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-0} = addr{11-0}; // imm12
|
|
}
|
|
def rs : AI2ldst<0b011, 0, isByte, (outs), (ins GPR:$Rt, ldst_so_reg:$shift),
|
|
AddrModeNone, StFrm, iir, opc, "\t$Rt, $shift",
|
|
[(opnode GPR:$Rt, ldst_so_reg:$shift)]> {
|
|
bits<4> Rt;
|
|
bits<17> shift;
|
|
let shift{4} = 0; // Inst{4} = 0
|
|
let Inst{23} = shift{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = shift{16-13}; // Rn
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-0} = shift{11-0};
|
|
}
|
|
}
|
|
|
|
multiclass AI_str1nopc<bit isByte, string opc, InstrItinClass iii,
|
|
InstrItinClass iir, PatFrag opnode> {
|
|
// Note: We use the complex addrmode_imm12 rather than just an input
|
|
// GPR and a constrained immediate so that we can use this to match
|
|
// frame index references and avoid matching constant pool references.
|
|
def i12 : AI2ldst<0b010, 0, isByte, (outs),
|
|
(ins GPRnopc:$Rt, addrmode_imm12:$addr),
|
|
AddrMode_i12, StFrm, iii, opc, "\t$Rt, $addr",
|
|
[(opnode GPRnopc:$Rt, addrmode_imm12:$addr)]> {
|
|
bits<4> Rt;
|
|
bits<17> addr;
|
|
let Inst{23} = addr{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = addr{16-13}; // Rn
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-0} = addr{11-0}; // imm12
|
|
}
|
|
def rs : AI2ldst<0b011, 0, isByte, (outs), (ins GPRnopc:$Rt, ldst_so_reg:$shift),
|
|
AddrModeNone, StFrm, iir, opc, "\t$Rt, $shift",
|
|
[(opnode GPRnopc:$Rt, ldst_so_reg:$shift)]> {
|
|
bits<4> Rt;
|
|
bits<17> shift;
|
|
let shift{4} = 0; // Inst{4} = 0
|
|
let Inst{23} = shift{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = shift{16-13}; // Rn
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-0} = shift{11-0};
|
|
}
|
|
}
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Instructions
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Miscellaneous Instructions.
|
|
//
|
|
|
|
/// CONSTPOOL_ENTRY - This instruction represents a floating constant pool in
|
|
/// the function. The first operand is the ID# for this instruction, the second
|
|
/// is the index into the MachineConstantPool that this is, the third is the
|
|
/// size in bytes of this constant pool entry.
|
|
let neverHasSideEffects = 1, isNotDuplicable = 1 in
|
|
def CONSTPOOL_ENTRY :
|
|
PseudoInst<(outs), (ins cpinst_operand:$instid, cpinst_operand:$cpidx,
|
|
i32imm:$size), NoItinerary, []>;
|
|
|
|
// FIXME: Marking these as hasSideEffects is necessary to prevent machine DCE
|
|
// from removing one half of the matched pairs. That breaks PEI, which assumes
|
|
// these will always be in pairs, and asserts if it finds otherwise. Better way?
|
|
let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
|
|
def ADJCALLSTACKUP :
|
|
PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2, pred:$p), NoItinerary,
|
|
[(ARMcallseq_end timm:$amt1, timm:$amt2)]>;
|
|
|
|
def ADJCALLSTACKDOWN :
|
|
PseudoInst<(outs), (ins i32imm:$amt, pred:$p), NoItinerary,
|
|
[(ARMcallseq_start timm:$amt)]>;
|
|
}
|
|
|
|
// Atomic pseudo-insts which will be lowered to ldrexd/strexd loops.
|
|
// (These pseudos use a hand-written selection code).
|
|
let usesCustomInserter = 1, Defs = [CPSR], mayLoad = 1, mayStore = 1 in {
|
|
def ATOMOR6432 : PseudoInst<(outs GPR:$dst1, GPR:$dst2),
|
|
(ins GPR:$addr, GPR:$src1, GPR:$src2),
|
|
NoItinerary, []>;
|
|
def ATOMXOR6432 : PseudoInst<(outs GPR:$dst1, GPR:$dst2),
|
|
(ins GPR:$addr, GPR:$src1, GPR:$src2),
|
|
NoItinerary, []>;
|
|
def ATOMADD6432 : PseudoInst<(outs GPR:$dst1, GPR:$dst2),
|
|
(ins GPR:$addr, GPR:$src1, GPR:$src2),
|
|
NoItinerary, []>;
|
|
def ATOMSUB6432 : PseudoInst<(outs GPR:$dst1, GPR:$dst2),
|
|
(ins GPR:$addr, GPR:$src1, GPR:$src2),
|
|
NoItinerary, []>;
|
|
def ATOMNAND6432 : PseudoInst<(outs GPR:$dst1, GPR:$dst2),
|
|
(ins GPR:$addr, GPR:$src1, GPR:$src2),
|
|
NoItinerary, []>;
|
|
def ATOMAND6432 : PseudoInst<(outs GPR:$dst1, GPR:$dst2),
|
|
(ins GPR:$addr, GPR:$src1, GPR:$src2),
|
|
NoItinerary, []>;
|
|
def ATOMSWAP6432 : PseudoInst<(outs GPR:$dst1, GPR:$dst2),
|
|
(ins GPR:$addr, GPR:$src1, GPR:$src2),
|
|
NoItinerary, []>;
|
|
def ATOMCMPXCHG6432 : PseudoInst<(outs GPR:$dst1, GPR:$dst2),
|
|
(ins GPR:$addr, GPR:$cmp1, GPR:$cmp2,
|
|
GPR:$set1, GPR:$set2),
|
|
NoItinerary, []>;
|
|
}
|
|
|
|
def NOP : AI<(outs), (ins), MiscFrm, NoItinerary, "nop", "", []>,
|
|
Requires<[IsARM, HasV6T2]> {
|
|
let Inst{27-16} = 0b001100100000;
|
|
let Inst{15-8} = 0b11110000;
|
|
let Inst{7-0} = 0b00000000;
|
|
}
|
|
|
|
def YIELD : AI<(outs), (ins), MiscFrm, NoItinerary, "yield", "", []>,
|
|
Requires<[IsARM, HasV6T2]> {
|
|
let Inst{27-16} = 0b001100100000;
|
|
let Inst{15-8} = 0b11110000;
|
|
let Inst{7-0} = 0b00000001;
|
|
}
|
|
|
|
def WFE : AI<(outs), (ins), MiscFrm, NoItinerary, "wfe", "", []>,
|
|
Requires<[IsARM, HasV6T2]> {
|
|
let Inst{27-16} = 0b001100100000;
|
|
let Inst{15-8} = 0b11110000;
|
|
let Inst{7-0} = 0b00000010;
|
|
}
|
|
|
|
def WFI : AI<(outs), (ins), MiscFrm, NoItinerary, "wfi", "", []>,
|
|
Requires<[IsARM, HasV6T2]> {
|
|
let Inst{27-16} = 0b001100100000;
|
|
let Inst{15-8} = 0b11110000;
|
|
let Inst{7-0} = 0b00000011;
|
|
}
|
|
|
|
def SEL : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm, NoItinerary, "sel",
|
|
"\t$Rd, $Rn, $Rm", []>, Requires<[IsARM, HasV6]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let Inst{3-0} = Rm;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{27-20} = 0b01101000;
|
|
let Inst{7-4} = 0b1011;
|
|
let Inst{11-8} = 0b1111;
|
|
}
|
|
|
|
def SEV : AI<(outs), (ins), MiscFrm, NoItinerary, "sev", "",
|
|
[]>, Requires<[IsARM, HasV6T2]> {
|
|
let Inst{27-16} = 0b001100100000;
|
|
let Inst{15-8} = 0b11110000;
|
|
let Inst{7-0} = 0b00000100;
|
|
}
|
|
|
|
// The i32imm operand $val can be used by a debugger to store more information
|
|
// about the breakpoint.
|
|
def BKPT : AI<(outs), (ins imm0_65535:$val), MiscFrm, NoItinerary,
|
|
"bkpt", "\t$val", []>, Requires<[IsARM]> {
|
|
bits<16> val;
|
|
let Inst{3-0} = val{3-0};
|
|
let Inst{19-8} = val{15-4};
|
|
let Inst{27-20} = 0b00010010;
|
|
let Inst{7-4} = 0b0111;
|
|
}
|
|
|
|
// Change Processor State
|
|
// FIXME: We should use InstAlias to handle the optional operands.
|
|
class CPS<dag iops, string asm_ops>
|
|
: AXI<(outs), iops, MiscFrm, NoItinerary, !strconcat("cps", asm_ops),
|
|
[]>, Requires<[IsARM]> {
|
|
bits<2> imod;
|
|
bits<3> iflags;
|
|
bits<5> mode;
|
|
bit M;
|
|
|
|
let Inst{31-28} = 0b1111;
|
|
let Inst{27-20} = 0b00010000;
|
|
let Inst{19-18} = imod;
|
|
let Inst{17} = M; // Enabled if mode is set;
|
|
let Inst{16-9} = 0b00000000;
|
|
let Inst{8-6} = iflags;
|
|
let Inst{5} = 0;
|
|
let Inst{4-0} = mode;
|
|
}
|
|
|
|
let DecoderMethod = "DecodeCPSInstruction" in {
|
|
let M = 1 in
|
|
def CPS3p : CPS<(ins imod_op:$imod, iflags_op:$iflags, imm0_31:$mode),
|
|
"$imod\t$iflags, $mode">;
|
|
let mode = 0, M = 0 in
|
|
def CPS2p : CPS<(ins imod_op:$imod, iflags_op:$iflags), "$imod\t$iflags">;
|
|
|
|
let imod = 0, iflags = 0, M = 1 in
|
|
def CPS1p : CPS<(ins imm0_31:$mode), "\t$mode">;
|
|
}
|
|
|
|
// Preload signals the memory system of possible future data/instruction access.
|
|
multiclass APreLoad<bits<1> read, bits<1> data, string opc> {
|
|
|
|
def i12 : AXI<(outs), (ins addrmode_imm12:$addr), MiscFrm, IIC_Preload,
|
|
!strconcat(opc, "\t$addr"),
|
|
[(ARMPreload addrmode_imm12:$addr, (i32 read), (i32 data))]> {
|
|
bits<4> Rt;
|
|
bits<17> addr;
|
|
let Inst{31-26} = 0b111101;
|
|
let Inst{25} = 0; // 0 for immediate form
|
|
let Inst{24} = data;
|
|
let Inst{23} = addr{12}; // U (add = ('U' == 1))
|
|
let Inst{22} = read;
|
|
let Inst{21-20} = 0b01;
|
|
let Inst{19-16} = addr{16-13}; // Rn
|
|
let Inst{15-12} = 0b1111;
|
|
let Inst{11-0} = addr{11-0}; // imm12
|
|
}
|
|
|
|
def rs : AXI<(outs), (ins ldst_so_reg:$shift), MiscFrm, IIC_Preload,
|
|
!strconcat(opc, "\t$shift"),
|
|
[(ARMPreload ldst_so_reg:$shift, (i32 read), (i32 data))]> {
|
|
bits<17> shift;
|
|
let Inst{31-26} = 0b111101;
|
|
let Inst{25} = 1; // 1 for register form
|
|
let Inst{24} = data;
|
|
let Inst{23} = shift{12}; // U (add = ('U' == 1))
|
|
let Inst{22} = read;
|
|
let Inst{21-20} = 0b01;
|
|
let Inst{19-16} = shift{16-13}; // Rn
|
|
let Inst{15-12} = 0b1111;
|
|
let Inst{11-0} = shift{11-0};
|
|
let Inst{4} = 0;
|
|
}
|
|
}
|
|
|
|
defm PLD : APreLoad<1, 1, "pld">, Requires<[IsARM]>;
|
|
defm PLDW : APreLoad<0, 1, "pldw">, Requires<[IsARM,HasV7,HasMP]>;
|
|
defm PLI : APreLoad<1, 0, "pli">, Requires<[IsARM,HasV7]>;
|
|
|
|
def SETEND : AXI<(outs), (ins setend_op:$end), MiscFrm, NoItinerary,
|
|
"setend\t$end", []>, Requires<[IsARM]> {
|
|
bits<1> end;
|
|
let Inst{31-10} = 0b1111000100000001000000;
|
|
let Inst{9} = end;
|
|
let Inst{8-0} = 0;
|
|
}
|
|
|
|
def DBG : AI<(outs), (ins imm0_15:$opt), MiscFrm, NoItinerary, "dbg", "\t$opt",
|
|
[]>, Requires<[IsARM, HasV7]> {
|
|
bits<4> opt;
|
|
let Inst{27-4} = 0b001100100000111100001111;
|
|
let Inst{3-0} = opt;
|
|
}
|
|
|
|
// A5.4 Permanently UNDEFINED instructions.
|
|
let isBarrier = 1, isTerminator = 1 in
|
|
def TRAP : AXI<(outs), (ins), MiscFrm, NoItinerary,
|
|
"trap", [(trap)]>,
|
|
Requires<[IsARM]> {
|
|
let Inst = 0xe7ffdefe;
|
|
}
|
|
|
|
// Address computation and loads and stores in PIC mode.
|
|
let isNotDuplicable = 1 in {
|
|
def PICADD : ARMPseudoInst<(outs GPR:$dst), (ins GPR:$a, pclabel:$cp, pred:$p),
|
|
4, IIC_iALUr,
|
|
[(set GPR:$dst, (ARMpic_add GPR:$a, imm:$cp))]>;
|
|
|
|
let AddedComplexity = 10 in {
|
|
def PICLDR : ARMPseudoInst<(outs GPR:$dst), (ins addrmodepc:$addr, pred:$p),
|
|
4, IIC_iLoad_r,
|
|
[(set GPR:$dst, (load addrmodepc:$addr))]>;
|
|
|
|
def PICLDRH : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
|
|
4, IIC_iLoad_bh_r,
|
|
[(set GPR:$Rt, (zextloadi16 addrmodepc:$addr))]>;
|
|
|
|
def PICLDRB : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
|
|
4, IIC_iLoad_bh_r,
|
|
[(set GPR:$Rt, (zextloadi8 addrmodepc:$addr))]>;
|
|
|
|
def PICLDRSH : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
|
|
4, IIC_iLoad_bh_r,
|
|
[(set GPR:$Rt, (sextloadi16 addrmodepc:$addr))]>;
|
|
|
|
def PICLDRSB : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
|
|
4, IIC_iLoad_bh_r,
|
|
[(set GPR:$Rt, (sextloadi8 addrmodepc:$addr))]>;
|
|
}
|
|
let AddedComplexity = 10 in {
|
|
def PICSTR : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
|
|
4, IIC_iStore_r, [(store GPR:$src, addrmodepc:$addr)]>;
|
|
|
|
def PICSTRH : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
|
|
4, IIC_iStore_bh_r, [(truncstorei16 GPR:$src,
|
|
addrmodepc:$addr)]>;
|
|
|
|
def PICSTRB : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
|
|
4, IIC_iStore_bh_r, [(truncstorei8 GPR:$src, addrmodepc:$addr)]>;
|
|
}
|
|
} // isNotDuplicable = 1
|
|
|
|
|
|
// LEApcrel - Load a pc-relative address into a register without offending the
|
|
// assembler.
|
|
let neverHasSideEffects = 1, isReMaterializable = 1 in
|
|
// The 'adr' mnemonic encodes differently if the label is before or after
|
|
// the instruction. The {24-21} opcode bits are set by the fixup, as we don't
|
|
// know until then which form of the instruction will be used.
|
|
def ADR : AI1<{0,?,?,0}, (outs GPR:$Rd), (ins adrlabel:$label),
|
|
MiscFrm, IIC_iALUi, "adr", "\t$Rd, $label", []> {
|
|
bits<4> Rd;
|
|
bits<14> label;
|
|
let Inst{27-25} = 0b001;
|
|
let Inst{24} = 0;
|
|
let Inst{23-22} = label{13-12};
|
|
let Inst{21} = 0;
|
|
let Inst{20} = 0;
|
|
let Inst{19-16} = 0b1111;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-0} = label{11-0};
|
|
}
|
|
def LEApcrel : ARMPseudoInst<(outs GPR:$Rd), (ins i32imm:$label, pred:$p),
|
|
4, IIC_iALUi, []>;
|
|
|
|
def LEApcrelJT : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins i32imm:$label, nohash_imm:$id, pred:$p),
|
|
4, IIC_iALUi, []>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Control Flow Instructions.
|
|
//
|
|
|
|
let isReturn = 1, isTerminator = 1, isBarrier = 1 in {
|
|
// ARMV4T and above
|
|
def BX_RET : AI<(outs), (ins), BrMiscFrm, IIC_Br,
|
|
"bx", "\tlr", [(ARMretflag)]>,
|
|
Requires<[IsARM, HasV4T]> {
|
|
let Inst{27-0} = 0b0001001011111111111100011110;
|
|
}
|
|
|
|
// ARMV4 only
|
|
def MOVPCLR : AI<(outs), (ins), BrMiscFrm, IIC_Br,
|
|
"mov", "\tpc, lr", [(ARMretflag)]>,
|
|
Requires<[IsARM, NoV4T]> {
|
|
let Inst{27-0} = 0b0001101000001111000000001110;
|
|
}
|
|
}
|
|
|
|
// Indirect branches
|
|
let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
|
|
// ARMV4T and above
|
|
def BX : AXI<(outs), (ins GPR:$dst), BrMiscFrm, IIC_Br, "bx\t$dst",
|
|
[(brind GPR:$dst)]>,
|
|
Requires<[IsARM, HasV4T]> {
|
|
bits<4> dst;
|
|
let Inst{31-4} = 0b1110000100101111111111110001;
|
|
let Inst{3-0} = dst;
|
|
}
|
|
|
|
def BX_pred : AI<(outs), (ins GPR:$dst), BrMiscFrm, IIC_Br,
|
|
"bx", "\t$dst", [/* pattern left blank */]>,
|
|
Requires<[IsARM, HasV4T]> {
|
|
bits<4> dst;
|
|
let Inst{27-4} = 0b000100101111111111110001;
|
|
let Inst{3-0} = dst;
|
|
}
|
|
}
|
|
|
|
// SP is marked as a use to prevent stack-pointer assignments that appear
|
|
// immediately before calls from potentially appearing dead.
|
|
let isCall = 1,
|
|
// FIXME: Do we really need a non-predicated version? If so, it should
|
|
// at least be a pseudo instruction expanding to the predicated version
|
|
// at MC lowering time.
|
|
Defs = [LR], Uses = [SP] in {
|
|
def BL : ABXI<0b1011, (outs), (ins bl_target:$func, variable_ops),
|
|
IIC_Br, "bl\t$func",
|
|
[(ARMcall tglobaladdr:$func)]>,
|
|
Requires<[IsARM]> {
|
|
let Inst{31-28} = 0b1110;
|
|
bits<24> func;
|
|
let Inst{23-0} = func;
|
|
let DecoderMethod = "DecodeBranchImmInstruction";
|
|
}
|
|
|
|
def BL_pred : ABI<0b1011, (outs), (ins bl_target:$func, variable_ops),
|
|
IIC_Br, "bl", "\t$func",
|
|
[(ARMcall_pred tglobaladdr:$func)]>,
|
|
Requires<[IsARM]> {
|
|
bits<24> func;
|
|
let Inst{23-0} = func;
|
|
let DecoderMethod = "DecodeBranchImmInstruction";
|
|
}
|
|
|
|
// ARMv5T and above
|
|
def BLX : AXI<(outs), (ins GPR:$func, variable_ops), BrMiscFrm,
|
|
IIC_Br, "blx\t$func",
|
|
[(ARMcall GPR:$func)]>,
|
|
Requires<[IsARM, HasV5T]> {
|
|
bits<4> func;
|
|
let Inst{31-4} = 0b1110000100101111111111110011;
|
|
let Inst{3-0} = func;
|
|
}
|
|
|
|
def BLX_pred : AI<(outs), (ins GPR:$func, variable_ops), BrMiscFrm,
|
|
IIC_Br, "blx", "\t$func",
|
|
[(ARMcall_pred GPR:$func)]>,
|
|
Requires<[IsARM, HasV5T]> {
|
|
bits<4> func;
|
|
let Inst{27-4} = 0b000100101111111111110011;
|
|
let Inst{3-0} = func;
|
|
}
|
|
|
|
// ARMv4T
|
|
// Note: Restrict $func to the tGPR regclass to prevent it being in LR.
|
|
def BX_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
|
|
8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
|
|
Requires<[IsARM, HasV4T]>;
|
|
|
|
// ARMv4
|
|
def BMOVPCRX_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
|
|
8, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
|
|
Requires<[IsARM, NoV4T]>;
|
|
|
|
// mov lr, pc; b if callee is marked noreturn to avoid confusing the
|
|
// return stack predictor.
|
|
def BMOVPCB_CALL : ARMPseudoInst<(outs),
|
|
(ins bl_target:$func, variable_ops),
|
|
8, IIC_Br, [(ARMcall_nolink tglobaladdr:$func)]>,
|
|
Requires<[IsARM]>;
|
|
}
|
|
|
|
let isBranch = 1, isTerminator = 1 in {
|
|
// FIXME: should be able to write a pattern for ARMBrcond, but can't use
|
|
// a two-value operand where a dag node expects two operands. :(
|
|
def Bcc : ABI<0b1010, (outs), (ins br_target:$target),
|
|
IIC_Br, "b", "\t$target",
|
|
[/*(ARMbrcond bb:$target, imm:$cc, CCR:$ccr)*/]> {
|
|
bits<24> target;
|
|
let Inst{23-0} = target;
|
|
let DecoderMethod = "DecodeBranchImmInstruction";
|
|
}
|
|
|
|
let isBarrier = 1 in {
|
|
// B is "predicable" since it's just a Bcc with an 'always' condition.
|
|
let isPredicable = 1 in
|
|
// FIXME: We shouldn't need this pseudo at all. Just using Bcc directly
|
|
// should be sufficient.
|
|
// FIXME: Is B really a Barrier? That doesn't seem right.
|
|
def B : ARMPseudoExpand<(outs), (ins br_target:$target), 4, IIC_Br,
|
|
[(br bb:$target)], (Bcc br_target:$target, (ops 14, zero_reg))>;
|
|
|
|
let isNotDuplicable = 1, isIndirectBranch = 1 in {
|
|
def BR_JTr : ARMPseudoInst<(outs),
|
|
(ins GPR:$target, i32imm:$jt, i32imm:$id),
|
|
0, IIC_Br,
|
|
[(ARMbrjt GPR:$target, tjumptable:$jt, imm:$id)]>;
|
|
// FIXME: This shouldn't use the generic "addrmode2," but rather be split
|
|
// into i12 and rs suffixed versions.
|
|
def BR_JTm : ARMPseudoInst<(outs),
|
|
(ins addrmode2:$target, i32imm:$jt, i32imm:$id),
|
|
0, IIC_Br,
|
|
[(ARMbrjt (i32 (load addrmode2:$target)), tjumptable:$jt,
|
|
imm:$id)]>;
|
|
def BR_JTadd : ARMPseudoInst<(outs),
|
|
(ins GPR:$target, GPR:$idx, i32imm:$jt, i32imm:$id),
|
|
0, IIC_Br,
|
|
[(ARMbrjt (add GPR:$target, GPR:$idx), tjumptable:$jt,
|
|
imm:$id)]>;
|
|
} // isNotDuplicable = 1, isIndirectBranch = 1
|
|
} // isBarrier = 1
|
|
|
|
}
|
|
|
|
// BLX (immediate)
|
|
def BLXi : AXI<(outs), (ins blx_target:$target), BrMiscFrm, NoItinerary,
|
|
"blx\t$target", []>,
|
|
Requires<[IsARM, HasV5T]> {
|
|
let Inst{31-25} = 0b1111101;
|
|
bits<25> target;
|
|
let Inst{23-0} = target{24-1};
|
|
let Inst{24} = target{0};
|
|
}
|
|
|
|
// Branch and Exchange Jazelle
|
|
def BXJ : ABI<0b0001, (outs), (ins GPR:$func), NoItinerary, "bxj", "\t$func",
|
|
[/* pattern left blank */]> {
|
|
bits<4> func;
|
|
let Inst{23-20} = 0b0010;
|
|
let Inst{19-8} = 0xfff;
|
|
let Inst{7-4} = 0b0010;
|
|
let Inst{3-0} = func;
|
|
}
|
|
|
|
// Tail calls.
|
|
|
|
let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1, Uses = [SP] in {
|
|
def TCRETURNdi : PseudoInst<(outs), (ins i32imm:$dst, variable_ops),
|
|
IIC_Br, []>;
|
|
|
|
def TCRETURNri : PseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
|
|
IIC_Br, []>;
|
|
|
|
def TAILJMPd : ARMPseudoExpand<(outs), (ins br_target:$dst, variable_ops),
|
|
4, IIC_Br, [],
|
|
(Bcc br_target:$dst, (ops 14, zero_reg))>,
|
|
Requires<[IsARM]>;
|
|
|
|
def TAILJMPr : ARMPseudoExpand<(outs), (ins tcGPR:$dst, variable_ops),
|
|
4, IIC_Br, [],
|
|
(BX GPR:$dst)>,
|
|
Requires<[IsARM]>;
|
|
}
|
|
|
|
// Secure Monitor Call is a system instruction.
|
|
def SMC : ABI<0b0001, (outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
|
|
[]> {
|
|
bits<4> opt;
|
|
let Inst{23-4} = 0b01100000000000000111;
|
|
let Inst{3-0} = opt;
|
|
}
|
|
|
|
// Supervisor Call (Software Interrupt)
|
|
let isCall = 1, Uses = [SP] in {
|
|
def SVC : ABI<0b1111, (outs), (ins imm24b:$svc), IIC_Br, "svc", "\t$svc", []> {
|
|
bits<24> svc;
|
|
let Inst{23-0} = svc;
|
|
}
|
|
}
|
|
|
|
// Store Return State
|
|
class SRSI<bit wb, string asm>
|
|
: XI<(outs), (ins imm0_31:$mode), AddrModeNone, 4, IndexModeNone, BrFrm,
|
|
NoItinerary, asm, "", []> {
|
|
bits<5> mode;
|
|
let Inst{31-28} = 0b1111;
|
|
let Inst{27-25} = 0b100;
|
|
let Inst{22} = 1;
|
|
let Inst{21} = wb;
|
|
let Inst{20} = 0;
|
|
let Inst{19-16} = 0b1101; // SP
|
|
let Inst{15-5} = 0b00000101000;
|
|
let Inst{4-0} = mode;
|
|
}
|
|
|
|
def SRSDA : SRSI<0, "srsda\tsp, $mode"> {
|
|
let Inst{24-23} = 0;
|
|
}
|
|
def SRSDA_UPD : SRSI<1, "srsda\tsp!, $mode"> {
|
|
let Inst{24-23} = 0;
|
|
}
|
|
def SRSDB : SRSI<0, "srsdb\tsp, $mode"> {
|
|
let Inst{24-23} = 0b10;
|
|
}
|
|
def SRSDB_UPD : SRSI<1, "srsdb\tsp!, $mode"> {
|
|
let Inst{24-23} = 0b10;
|
|
}
|
|
def SRSIA : SRSI<0, "srsia\tsp, $mode"> {
|
|
let Inst{24-23} = 0b01;
|
|
}
|
|
def SRSIA_UPD : SRSI<1, "srsia\tsp!, $mode"> {
|
|
let Inst{24-23} = 0b01;
|
|
}
|
|
def SRSIB : SRSI<0, "srsib\tsp, $mode"> {
|
|
let Inst{24-23} = 0b11;
|
|
}
|
|
def SRSIB_UPD : SRSI<1, "srsib\tsp!, $mode"> {
|
|
let Inst{24-23} = 0b11;
|
|
}
|
|
|
|
// Return From Exception
|
|
class RFEI<bit wb, string asm>
|
|
: XI<(outs), (ins GPR:$Rn), AddrModeNone, 4, IndexModeNone, BrFrm,
|
|
NoItinerary, asm, "", []> {
|
|
bits<4> Rn;
|
|
let Inst{31-28} = 0b1111;
|
|
let Inst{27-25} = 0b100;
|
|
let Inst{22} = 0;
|
|
let Inst{21} = wb;
|
|
let Inst{20} = 1;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-0} = 0xa00;
|
|
}
|
|
|
|
def RFEDA : RFEI<0, "rfeda\t$Rn"> {
|
|
let Inst{24-23} = 0;
|
|
}
|
|
def RFEDA_UPD : RFEI<1, "rfeda\t$Rn!"> {
|
|
let Inst{24-23} = 0;
|
|
}
|
|
def RFEDB : RFEI<0, "rfedb\t$Rn"> {
|
|
let Inst{24-23} = 0b10;
|
|
}
|
|
def RFEDB_UPD : RFEI<1, "rfedb\t$Rn!"> {
|
|
let Inst{24-23} = 0b10;
|
|
}
|
|
def RFEIA : RFEI<0, "rfeia\t$Rn"> {
|
|
let Inst{24-23} = 0b01;
|
|
}
|
|
def RFEIA_UPD : RFEI<1, "rfeia\t$Rn!"> {
|
|
let Inst{24-23} = 0b01;
|
|
}
|
|
def RFEIB : RFEI<0, "rfeib\t$Rn"> {
|
|
let Inst{24-23} = 0b11;
|
|
}
|
|
def RFEIB_UPD : RFEI<1, "rfeib\t$Rn!"> {
|
|
let Inst{24-23} = 0b11;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Load / Store Instructions.
|
|
//
|
|
|
|
// Load
|
|
|
|
|
|
defm LDR : AI_ldr1<0, "ldr", IIC_iLoad_r, IIC_iLoad_si,
|
|
UnOpFrag<(load node:$Src)>>;
|
|
defm LDRB : AI_ldr1nopc<1, "ldrb", IIC_iLoad_bh_r, IIC_iLoad_bh_si,
|
|
UnOpFrag<(zextloadi8 node:$Src)>>;
|
|
defm STR : AI_str1<0, "str", IIC_iStore_r, IIC_iStore_si,
|
|
BinOpFrag<(store node:$LHS, node:$RHS)>>;
|
|
defm STRB : AI_str1nopc<1, "strb", IIC_iStore_bh_r, IIC_iStore_bh_si,
|
|
BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
|
|
|
|
// Special LDR for loads from non-pc-relative constpools.
|
|
let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1,
|
|
isReMaterializable = 1, isCodeGenOnly = 1 in
|
|
def LDRcp : AI2ldst<0b010, 1, 0, (outs GPR:$Rt), (ins addrmode_imm12:$addr),
|
|
AddrMode_i12, LdFrm, IIC_iLoad_r, "ldr", "\t$Rt, $addr",
|
|
[]> {
|
|
bits<4> Rt;
|
|
bits<17> addr;
|
|
let Inst{23} = addr{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = 0b1111;
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-0} = addr{11-0}; // imm12
|
|
}
|
|
|
|
// Loads with zero extension
|
|
def LDRH : AI3ld<0b1011, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
|
|
IIC_iLoad_bh_r, "ldrh", "\t$Rt, $addr",
|
|
[(set GPR:$Rt, (zextloadi16 addrmode3:$addr))]>;
|
|
|
|
// Loads with sign extension
|
|
def LDRSH : AI3ld<0b1111, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
|
|
IIC_iLoad_bh_r, "ldrsh", "\t$Rt, $addr",
|
|
[(set GPR:$Rt, (sextloadi16 addrmode3:$addr))]>;
|
|
|
|
def LDRSB : AI3ld<0b1101, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
|
|
IIC_iLoad_bh_r, "ldrsb", "\t$Rt, $addr",
|
|
[(set GPR:$Rt, (sextloadi8 addrmode3:$addr))]>;
|
|
|
|
let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
|
|
// Load doubleword
|
|
def LDRD : AI3ld<0b1101, 0, (outs GPR:$Rd, GPR:$dst2),
|
|
(ins addrmode3:$addr), LdMiscFrm,
|
|
IIC_iLoad_d_r, "ldrd", "\t$Rd, $dst2, $addr",
|
|
[]>, Requires<[IsARM, HasV5TE]>;
|
|
}
|
|
|
|
// Indexed loads
|
|
multiclass AI2_ldridx<bit isByte, string opc,
|
|
InstrItinClass iii, InstrItinClass iir> {
|
|
def _PRE_IMM : AI2ldstidx<1, isByte, 1, (outs GPR:$Rt, GPR:$Rn_wb),
|
|
(ins addrmode_imm12:$addr), IndexModePre, LdFrm, iii,
|
|
opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
|
|
bits<17> addr;
|
|
let Inst{25} = 0;
|
|
let Inst{23} = addr{12};
|
|
let Inst{19-16} = addr{16-13};
|
|
let Inst{11-0} = addr{11-0};
|
|
let DecoderMethod = "DecodeLDRPreImm";
|
|
let AsmMatchConverter = "cvtLdWriteBackRegAddrModeImm12";
|
|
}
|
|
|
|
def _PRE_REG : AI2ldstidx<1, isByte, 1, (outs GPR:$Rt, GPR:$Rn_wb),
|
|
(ins ldst_so_reg:$addr), IndexModePre, LdFrm, iir,
|
|
opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
|
|
bits<17> addr;
|
|
let Inst{25} = 1;
|
|
let Inst{23} = addr{12};
|
|
let Inst{19-16} = addr{16-13};
|
|
let Inst{11-0} = addr{11-0};
|
|
let Inst{4} = 0;
|
|
let DecoderMethod = "DecodeLDRPreReg";
|
|
let AsmMatchConverter = "cvtLdWriteBackRegAddrMode2";
|
|
}
|
|
|
|
def _POST_REG : AI2ldstidx<1, isByte, 0, (outs GPR:$Rt, GPR:$Rn_wb),
|
|
(ins addr_offset_none:$addr, am2offset_reg:$offset),
|
|
IndexModePost, LdFrm, iir,
|
|
opc, "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 1;
|
|
let Inst{23} = offset{12};
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-0} = offset{11-0};
|
|
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
|
|
def _POST_IMM : AI2ldstidx<1, isByte, 0, (outs GPR:$Rt, GPR:$Rn_wb),
|
|
(ins addr_offset_none:$addr, am2offset_imm:$offset),
|
|
IndexModePost, LdFrm, iii,
|
|
opc, "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 0;
|
|
let Inst{23} = offset{12};
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-0} = offset{11-0};
|
|
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
|
|
}
|
|
|
|
let mayLoad = 1, neverHasSideEffects = 1 in {
|
|
// FIXME: for LDR_PRE_REG etc. the itineray should be either IIC_iLoad_ru or
|
|
// IIC_iLoad_siu depending on whether it the offset register is shifted.
|
|
defm LDR : AI2_ldridx<0, "ldr", IIC_iLoad_iu, IIC_iLoad_ru>;
|
|
defm LDRB : AI2_ldridx<1, "ldrb", IIC_iLoad_bh_iu, IIC_iLoad_bh_ru>;
|
|
}
|
|
|
|
multiclass AI3_ldridx<bits<4> op, string opc, InstrItinClass itin> {
|
|
def _PRE : AI3ldstidx<op, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
|
|
(ins addrmode3:$addr), IndexModePre,
|
|
LdMiscFrm, itin,
|
|
opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
|
|
bits<14> addr;
|
|
let Inst{23} = addr{8}; // U bit
|
|
let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
|
|
let Inst{19-16} = addr{12-9}; // Rn
|
|
let Inst{11-8} = addr{7-4}; // imm7_4/zero
|
|
let Inst{3-0} = addr{3-0}; // imm3_0/Rm
|
|
let AsmMatchConverter = "cvtLdWriteBackRegAddrMode3";
|
|
let DecoderMethod = "DecodeAddrMode3Instruction";
|
|
}
|
|
def _POST : AI3ldstidx<op, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
|
|
(ins addr_offset_none:$addr, am3offset:$offset),
|
|
IndexModePost, LdMiscFrm, itin,
|
|
opc, "\t$Rt, $addr, $offset", "$addr.base = $Rn_wb",
|
|
[]> {
|
|
bits<10> offset;
|
|
bits<4> addr;
|
|
let Inst{23} = offset{8}; // U bit
|
|
let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-8} = offset{7-4}; // imm7_4/zero
|
|
let Inst{3-0} = offset{3-0}; // imm3_0/Rm
|
|
let DecoderMethod = "DecodeAddrMode3Instruction";
|
|
}
|
|
}
|
|
|
|
let mayLoad = 1, neverHasSideEffects = 1 in {
|
|
defm LDRH : AI3_ldridx<0b1011, "ldrh", IIC_iLoad_bh_ru>;
|
|
defm LDRSH : AI3_ldridx<0b1111, "ldrsh", IIC_iLoad_bh_ru>;
|
|
defm LDRSB : AI3_ldridx<0b1101, "ldrsb", IIC_iLoad_bh_ru>;
|
|
let hasExtraDefRegAllocReq = 1 in {
|
|
def LDRD_PRE : AI3ldstidx<0b1101, 0, 1, (outs GPR:$Rt, GPR:$Rt2, GPR:$Rn_wb),
|
|
(ins addrmode3:$addr), IndexModePre,
|
|
LdMiscFrm, IIC_iLoad_d_ru,
|
|
"ldrd", "\t$Rt, $Rt2, $addr!",
|
|
"$addr.base = $Rn_wb", []> {
|
|
bits<14> addr;
|
|
let Inst{23} = addr{8}; // U bit
|
|
let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
|
|
let Inst{19-16} = addr{12-9}; // Rn
|
|
let Inst{11-8} = addr{7-4}; // imm7_4/zero
|
|
let Inst{3-0} = addr{3-0}; // imm3_0/Rm
|
|
let DecoderMethod = "DecodeAddrMode3Instruction";
|
|
let AsmMatchConverter = "cvtLdrdPre";
|
|
}
|
|
def LDRD_POST: AI3ldstidx<0b1101, 0, 0, (outs GPR:$Rt, GPR:$Rt2, GPR:$Rn_wb),
|
|
(ins addr_offset_none:$addr, am3offset:$offset),
|
|
IndexModePost, LdMiscFrm, IIC_iLoad_d_ru,
|
|
"ldrd", "\t$Rt, $Rt2, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
bits<10> offset;
|
|
bits<4> addr;
|
|
let Inst{23} = offset{8}; // U bit
|
|
let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-8} = offset{7-4}; // imm7_4/zero
|
|
let Inst{3-0} = offset{3-0}; // imm3_0/Rm
|
|
let DecoderMethod = "DecodeAddrMode3Instruction";
|
|
}
|
|
} // hasExtraDefRegAllocReq = 1
|
|
} // mayLoad = 1, neverHasSideEffects = 1
|
|
|
|
// LDRT, LDRBT, LDRSBT, LDRHT, LDRSHT.
|
|
let mayLoad = 1, neverHasSideEffects = 1 in {
|
|
def LDRT_POST_REG : AI2ldstidx<1, 0, 0, (outs GPR:$Rt, GPR:$Rn_wb),
|
|
(ins addr_offset_none:$addr, am2offset_reg:$offset),
|
|
IndexModePost, LdFrm, IIC_iLoad_ru,
|
|
"ldrt", "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 1;
|
|
let Inst{23} = offset{12};
|
|
let Inst{21} = 1; // overwrite
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-5} = offset{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = offset{3-0};
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
|
|
def LDRT_POST_IMM : AI2ldstidx<1, 0, 0, (outs GPR:$Rt, GPR:$Rn_wb),
|
|
(ins addr_offset_none:$addr, am2offset_imm:$offset),
|
|
IndexModePost, LdFrm, IIC_iLoad_ru,
|
|
"ldrt", "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 0;
|
|
let Inst{23} = offset{12};
|
|
let Inst{21} = 1; // overwrite
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-0} = offset{11-0};
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
|
|
def LDRBT_POST_REG : AI2ldstidx<1, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
|
|
(ins addr_offset_none:$addr, am2offset_reg:$offset),
|
|
IndexModePost, LdFrm, IIC_iLoad_bh_ru,
|
|
"ldrbt", "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 1;
|
|
let Inst{23} = offset{12};
|
|
let Inst{21} = 1; // overwrite
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-5} = offset{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = offset{3-0};
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
|
|
def LDRBT_POST_IMM : AI2ldstidx<1, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
|
|
(ins addr_offset_none:$addr, am2offset_imm:$offset),
|
|
IndexModePost, LdFrm, IIC_iLoad_bh_ru,
|
|
"ldrbt", "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 0;
|
|
let Inst{23} = offset{12};
|
|
let Inst{21} = 1; // overwrite
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-0} = offset{11-0};
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
|
|
multiclass AI3ldrT<bits<4> op, string opc> {
|
|
def i : AI3ldstidxT<op, 1, (outs GPR:$Rt, GPR:$base_wb),
|
|
(ins addr_offset_none:$addr, postidx_imm8:$offset),
|
|
IndexModePost, LdMiscFrm, IIC_iLoad_bh_ru, opc,
|
|
"\t$Rt, $addr, $offset", "$addr.base = $base_wb", []> {
|
|
bits<9> offset;
|
|
let Inst{23} = offset{8};
|
|
let Inst{22} = 1;
|
|
let Inst{11-8} = offset{7-4};
|
|
let Inst{3-0} = offset{3-0};
|
|
let AsmMatchConverter = "cvtLdExtTWriteBackImm";
|
|
}
|
|
def r : AI3ldstidxT<op, 1, (outs GPRnopc:$Rt, GPRnopc:$base_wb),
|
|
(ins addr_offset_none:$addr, postidx_reg:$Rm),
|
|
IndexModePost, LdMiscFrm, IIC_iLoad_bh_ru, opc,
|
|
"\t$Rt, $addr, $Rm", "$addr.base = $base_wb", []> {
|
|
bits<5> Rm;
|
|
let Inst{23} = Rm{4};
|
|
let Inst{22} = 0;
|
|
let Inst{11-8} = 0;
|
|
let Unpredictable{11-8} = 0b1111;
|
|
let Inst{3-0} = Rm{3-0};
|
|
let AsmMatchConverter = "cvtLdExtTWriteBackReg";
|
|
let DecoderMethod = "DecodeLDR";
|
|
}
|
|
}
|
|
|
|
defm LDRSBT : AI3ldrT<0b1101, "ldrsbt">;
|
|
defm LDRHT : AI3ldrT<0b1011, "ldrht">;
|
|
defm LDRSHT : AI3ldrT<0b1111, "ldrsht">;
|
|
}
|
|
|
|
// Store
|
|
|
|
// Stores with truncate
|
|
def STRH : AI3str<0b1011, (outs), (ins GPR:$Rt, addrmode3:$addr), StMiscFrm,
|
|
IIC_iStore_bh_r, "strh", "\t$Rt, $addr",
|
|
[(truncstorei16 GPR:$Rt, addrmode3:$addr)]>;
|
|
|
|
// Store doubleword
|
|
let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
|
|
def STRD : AI3str<0b1111, (outs), (ins GPR:$Rt, GPR:$src2, addrmode3:$addr),
|
|
StMiscFrm, IIC_iStore_d_r,
|
|
"strd", "\t$Rt, $src2, $addr", []>,
|
|
Requires<[IsARM, HasV5TE]> {
|
|
let Inst{21} = 0;
|
|
}
|
|
|
|
// Indexed stores
|
|
multiclass AI2_stridx<bit isByte, string opc,
|
|
InstrItinClass iii, InstrItinClass iir> {
|
|
def _PRE_IMM : AI2ldstidx<0, isByte, 1, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, addrmode_imm12:$addr), IndexModePre,
|
|
StFrm, iii,
|
|
opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
|
|
bits<17> addr;
|
|
let Inst{25} = 0;
|
|
let Inst{23} = addr{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = addr{16-13}; // Rn
|
|
let Inst{11-0} = addr{11-0}; // imm12
|
|
let AsmMatchConverter = "cvtStWriteBackRegAddrModeImm12";
|
|
let DecoderMethod = "DecodeSTRPreImm";
|
|
}
|
|
|
|
def _PRE_REG : AI2ldstidx<0, isByte, 1, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, ldst_so_reg:$addr),
|
|
IndexModePre, StFrm, iir,
|
|
opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
|
|
bits<17> addr;
|
|
let Inst{25} = 1;
|
|
let Inst{23} = addr{12}; // U (add = ('U' == 1))
|
|
let Inst{19-16} = addr{16-13}; // Rn
|
|
let Inst{11-0} = addr{11-0};
|
|
let Inst{4} = 0; // Inst{4} = 0
|
|
let AsmMatchConverter = "cvtStWriteBackRegAddrMode2";
|
|
let DecoderMethod = "DecodeSTRPreReg";
|
|
}
|
|
def _POST_REG : AI2ldstidx<0, isByte, 0, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, addr_offset_none:$addr, am2offset_reg:$offset),
|
|
IndexModePost, StFrm, iir,
|
|
opc, "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 1;
|
|
let Inst{23} = offset{12};
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-0} = offset{11-0};
|
|
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
|
|
def _POST_IMM : AI2ldstidx<0, isByte, 0, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, addr_offset_none:$addr, am2offset_imm:$offset),
|
|
IndexModePost, StFrm, iii,
|
|
opc, "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 0;
|
|
let Inst{23} = offset{12};
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-0} = offset{11-0};
|
|
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
}
|
|
|
|
let mayStore = 1, neverHasSideEffects = 1 in {
|
|
// FIXME: for STR_PRE_REG etc. the itineray should be either IIC_iStore_ru or
|
|
// IIC_iStore_siu depending on whether it the offset register is shifted.
|
|
defm STR : AI2_stridx<0, "str", IIC_iStore_iu, IIC_iStore_ru>;
|
|
defm STRB : AI2_stridx<1, "strb", IIC_iStore_bh_iu, IIC_iStore_bh_ru>;
|
|
}
|
|
|
|
def : ARMPat<(post_store GPR:$Rt, addr_offset_none:$addr,
|
|
am2offset_reg:$offset),
|
|
(STR_POST_REG GPR:$Rt, addr_offset_none:$addr,
|
|
am2offset_reg:$offset)>;
|
|
def : ARMPat<(post_store GPR:$Rt, addr_offset_none:$addr,
|
|
am2offset_imm:$offset),
|
|
(STR_POST_IMM GPR:$Rt, addr_offset_none:$addr,
|
|
am2offset_imm:$offset)>;
|
|
def : ARMPat<(post_truncsti8 GPR:$Rt, addr_offset_none:$addr,
|
|
am2offset_reg:$offset),
|
|
(STRB_POST_REG GPR:$Rt, addr_offset_none:$addr,
|
|
am2offset_reg:$offset)>;
|
|
def : ARMPat<(post_truncsti8 GPR:$Rt, addr_offset_none:$addr,
|
|
am2offset_imm:$offset),
|
|
(STRB_POST_IMM GPR:$Rt, addr_offset_none:$addr,
|
|
am2offset_imm:$offset)>;
|
|
|
|
// Pseudo-instructions for pattern matching the pre-indexed stores. We can't
|
|
// put the patterns on the instruction definitions directly as ISel wants
|
|
// the address base and offset to be separate operands, not a single
|
|
// complex operand like we represent the instructions themselves. The
|
|
// pseudos map between the two.
|
|
let usesCustomInserter = 1,
|
|
Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
|
|
def STRi_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, GPR:$Rn, am2offset_imm:$offset, pred:$p),
|
|
4, IIC_iStore_ru,
|
|
[(set GPR:$Rn_wb,
|
|
(pre_store GPR:$Rt, GPR:$Rn, am2offset_imm:$offset))]>;
|
|
def STRr_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, GPR:$Rn, am2offset_reg:$offset, pred:$p),
|
|
4, IIC_iStore_ru,
|
|
[(set GPR:$Rn_wb,
|
|
(pre_store GPR:$Rt, GPR:$Rn, am2offset_reg:$offset))]>;
|
|
def STRBi_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, GPR:$Rn, am2offset_imm:$offset, pred:$p),
|
|
4, IIC_iStore_ru,
|
|
[(set GPR:$Rn_wb,
|
|
(pre_truncsti8 GPR:$Rt, GPR:$Rn, am2offset_imm:$offset))]>;
|
|
def STRBr_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, GPR:$Rn, am2offset_reg:$offset, pred:$p),
|
|
4, IIC_iStore_ru,
|
|
[(set GPR:$Rn_wb,
|
|
(pre_truncsti8 GPR:$Rt, GPR:$Rn, am2offset_reg:$offset))]>;
|
|
def STRH_preidx: ARMPseudoInst<(outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, GPR:$Rn, am3offset:$offset, pred:$p),
|
|
4, IIC_iStore_ru,
|
|
[(set GPR:$Rn_wb,
|
|
(pre_truncsti16 GPR:$Rt, GPR:$Rn, am3offset:$offset))]>;
|
|
}
|
|
|
|
|
|
|
|
def STRH_PRE : AI3ldstidx<0b1011, 0, 1, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, addrmode3:$addr), IndexModePre,
|
|
StMiscFrm, IIC_iStore_bh_ru,
|
|
"strh", "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
|
|
bits<14> addr;
|
|
let Inst{23} = addr{8}; // U bit
|
|
let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
|
|
let Inst{19-16} = addr{12-9}; // Rn
|
|
let Inst{11-8} = addr{7-4}; // imm7_4/zero
|
|
let Inst{3-0} = addr{3-0}; // imm3_0/Rm
|
|
let AsmMatchConverter = "cvtStWriteBackRegAddrMode3";
|
|
let DecoderMethod = "DecodeAddrMode3Instruction";
|
|
}
|
|
|
|
def STRH_POST : AI3ldstidx<0b1011, 0, 0, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, addr_offset_none:$addr, am3offset:$offset),
|
|
IndexModePost, StMiscFrm, IIC_iStore_bh_ru,
|
|
"strh", "\t$Rt, $addr, $offset", "$addr.base = $Rn_wb",
|
|
[(set GPR:$Rn_wb, (post_truncsti16 GPR:$Rt,
|
|
addr_offset_none:$addr,
|
|
am3offset:$offset))]> {
|
|
bits<10> offset;
|
|
bits<4> addr;
|
|
let Inst{23} = offset{8}; // U bit
|
|
let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-8} = offset{7-4}; // imm7_4/zero
|
|
let Inst{3-0} = offset{3-0}; // imm3_0/Rm
|
|
let DecoderMethod = "DecodeAddrMode3Instruction";
|
|
}
|
|
|
|
let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in {
|
|
def STRD_PRE : AI3ldstidx<0b1111, 0, 1, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, GPR:$Rt2, addrmode3:$addr),
|
|
IndexModePre, StMiscFrm, IIC_iStore_d_ru,
|
|
"strd", "\t$Rt, $Rt2, $addr!",
|
|
"$addr.base = $Rn_wb", []> {
|
|
bits<14> addr;
|
|
let Inst{23} = addr{8}; // U bit
|
|
let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
|
|
let Inst{19-16} = addr{12-9}; // Rn
|
|
let Inst{11-8} = addr{7-4}; // imm7_4/zero
|
|
let Inst{3-0} = addr{3-0}; // imm3_0/Rm
|
|
let DecoderMethod = "DecodeAddrMode3Instruction";
|
|
let AsmMatchConverter = "cvtStrdPre";
|
|
}
|
|
|
|
def STRD_POST: AI3ldstidx<0b1111, 0, 0, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, GPR:$Rt2, addr_offset_none:$addr,
|
|
am3offset:$offset),
|
|
IndexModePost, StMiscFrm, IIC_iStore_d_ru,
|
|
"strd", "\t$Rt, $Rt2, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
bits<10> offset;
|
|
bits<4> addr;
|
|
let Inst{23} = offset{8}; // U bit
|
|
let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-8} = offset{7-4}; // imm7_4/zero
|
|
let Inst{3-0} = offset{3-0}; // imm3_0/Rm
|
|
let DecoderMethod = "DecodeAddrMode3Instruction";
|
|
}
|
|
} // mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1
|
|
|
|
// STRT, STRBT, and STRHT
|
|
|
|
def STRBT_POST_REG : AI2ldstidx<0, 1, 0, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, addr_offset_none:$addr, am2offset_reg:$offset),
|
|
IndexModePost, StFrm, IIC_iStore_bh_ru,
|
|
"strbt", "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 1;
|
|
let Inst{23} = offset{12};
|
|
let Inst{21} = 1; // overwrite
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-5} = offset{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = offset{3-0};
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
|
|
def STRBT_POST_IMM : AI2ldstidx<0, 1, 0, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, addr_offset_none:$addr, am2offset_imm:$offset),
|
|
IndexModePost, StFrm, IIC_iStore_bh_ru,
|
|
"strbt", "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 0;
|
|
let Inst{23} = offset{12};
|
|
let Inst{21} = 1; // overwrite
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-0} = offset{11-0};
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
|
|
let mayStore = 1, neverHasSideEffects = 1 in {
|
|
def STRT_POST_REG : AI2ldstidx<0, 0, 0, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, addr_offset_none:$addr, am2offset_reg:$offset),
|
|
IndexModePost, StFrm, IIC_iStore_ru,
|
|
"strt", "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 1;
|
|
let Inst{23} = offset{12};
|
|
let Inst{21} = 1; // overwrite
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-5} = offset{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = offset{3-0};
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
|
|
def STRT_POST_IMM : AI2ldstidx<0, 0, 0, (outs GPR:$Rn_wb),
|
|
(ins GPR:$Rt, addr_offset_none:$addr, am2offset_imm:$offset),
|
|
IndexModePost, StFrm, IIC_iStore_ru,
|
|
"strt", "\t$Rt, $addr, $offset",
|
|
"$addr.base = $Rn_wb", []> {
|
|
// {12} isAdd
|
|
// {11-0} imm12/Rm
|
|
bits<14> offset;
|
|
bits<4> addr;
|
|
let Inst{25} = 0;
|
|
let Inst{23} = offset{12};
|
|
let Inst{21} = 1; // overwrite
|
|
let Inst{19-16} = addr;
|
|
let Inst{11-0} = offset{11-0};
|
|
let DecoderMethod = "DecodeAddrMode2IdxInstruction";
|
|
}
|
|
}
|
|
|
|
|
|
multiclass AI3strT<bits<4> op, string opc> {
|
|
def i : AI3ldstidxT<op, 0, (outs GPR:$base_wb),
|
|
(ins GPR:$Rt, addr_offset_none:$addr, postidx_imm8:$offset),
|
|
IndexModePost, StMiscFrm, IIC_iStore_bh_ru, opc,
|
|
"\t$Rt, $addr, $offset", "$addr.base = $base_wb", []> {
|
|
bits<9> offset;
|
|
let Inst{23} = offset{8};
|
|
let Inst{22} = 1;
|
|
let Inst{11-8} = offset{7-4};
|
|
let Inst{3-0} = offset{3-0};
|
|
let AsmMatchConverter = "cvtStExtTWriteBackImm";
|
|
}
|
|
def r : AI3ldstidxT<op, 0, (outs GPR:$base_wb),
|
|
(ins GPR:$Rt, addr_offset_none:$addr, postidx_reg:$Rm),
|
|
IndexModePost, StMiscFrm, IIC_iStore_bh_ru, opc,
|
|
"\t$Rt, $addr, $Rm", "$addr.base = $base_wb", []> {
|
|
bits<5> Rm;
|
|
let Inst{23} = Rm{4};
|
|
let Inst{22} = 0;
|
|
let Inst{11-8} = 0;
|
|
let Inst{3-0} = Rm{3-0};
|
|
let AsmMatchConverter = "cvtStExtTWriteBackReg";
|
|
}
|
|
}
|
|
|
|
|
|
defm STRHT : AI3strT<0b1011, "strht">;
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Load / store multiple Instructions.
|
|
//
|
|
|
|
multiclass arm_ldst_mult<string asm, string sfx, bit L_bit, bit P_bit, Format f,
|
|
InstrItinClass itin, InstrItinClass itin_upd> {
|
|
// IA is the default, so no need for an explicit suffix on the
|
|
// mnemonic here. Without it is the cannonical spelling.
|
|
def IA :
|
|
AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
|
|
IndexModeNone, f, itin,
|
|
!strconcat(asm, "${p}\t$Rn, $regs", sfx), "", []> {
|
|
let Inst{24-23} = 0b01; // Increment After
|
|
let Inst{22} = P_bit;
|
|
let Inst{21} = 0; // No writeback
|
|
let Inst{20} = L_bit;
|
|
}
|
|
def IA_UPD :
|
|
AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
|
|
IndexModeUpd, f, itin_upd,
|
|
!strconcat(asm, "${p}\t$Rn!, $regs", sfx), "$Rn = $wb", []> {
|
|
let Inst{24-23} = 0b01; // Increment After
|
|
let Inst{22} = P_bit;
|
|
let Inst{21} = 1; // Writeback
|
|
let Inst{20} = L_bit;
|
|
|
|
let DecoderMethod = "DecodeMemMultipleWritebackInstruction";
|
|
}
|
|
def DA :
|
|
AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
|
|
IndexModeNone, f, itin,
|
|
!strconcat(asm, "da${p}\t$Rn, $regs", sfx), "", []> {
|
|
let Inst{24-23} = 0b00; // Decrement After
|
|
let Inst{22} = P_bit;
|
|
let Inst{21} = 0; // No writeback
|
|
let Inst{20} = L_bit;
|
|
}
|
|
def DA_UPD :
|
|
AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
|
|
IndexModeUpd, f, itin_upd,
|
|
!strconcat(asm, "da${p}\t$Rn!, $regs", sfx), "$Rn = $wb", []> {
|
|
let Inst{24-23} = 0b00; // Decrement After
|
|
let Inst{22} = P_bit;
|
|
let Inst{21} = 1; // Writeback
|
|
let Inst{20} = L_bit;
|
|
|
|
let DecoderMethod = "DecodeMemMultipleWritebackInstruction";
|
|
}
|
|
def DB :
|
|
AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
|
|
IndexModeNone, f, itin,
|
|
!strconcat(asm, "db${p}\t$Rn, $regs", sfx), "", []> {
|
|
let Inst{24-23} = 0b10; // Decrement Before
|
|
let Inst{22} = P_bit;
|
|
let Inst{21} = 0; // No writeback
|
|
let Inst{20} = L_bit;
|
|
}
|
|
def DB_UPD :
|
|
AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
|
|
IndexModeUpd, f, itin_upd,
|
|
!strconcat(asm, "db${p}\t$Rn!, $regs", sfx), "$Rn = $wb", []> {
|
|
let Inst{24-23} = 0b10; // Decrement Before
|
|
let Inst{22} = P_bit;
|
|
let Inst{21} = 1; // Writeback
|
|
let Inst{20} = L_bit;
|
|
|
|
let DecoderMethod = "DecodeMemMultipleWritebackInstruction";
|
|
}
|
|
def IB :
|
|
AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
|
|
IndexModeNone, f, itin,
|
|
!strconcat(asm, "ib${p}\t$Rn, $regs", sfx), "", []> {
|
|
let Inst{24-23} = 0b11; // Increment Before
|
|
let Inst{22} = P_bit;
|
|
let Inst{21} = 0; // No writeback
|
|
let Inst{20} = L_bit;
|
|
}
|
|
def IB_UPD :
|
|
AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
|
|
IndexModeUpd, f, itin_upd,
|
|
!strconcat(asm, "ib${p}\t$Rn!, $regs", sfx), "$Rn = $wb", []> {
|
|
let Inst{24-23} = 0b11; // Increment Before
|
|
let Inst{22} = P_bit;
|
|
let Inst{21} = 1; // Writeback
|
|
let Inst{20} = L_bit;
|
|
|
|
let DecoderMethod = "DecodeMemMultipleWritebackInstruction";
|
|
}
|
|
}
|
|
|
|
let neverHasSideEffects = 1 in {
|
|
|
|
let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
|
|
defm LDM : arm_ldst_mult<"ldm", "", 1, 0, LdStMulFrm, IIC_iLoad_m,
|
|
IIC_iLoad_mu>;
|
|
|
|
let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
|
|
defm STM : arm_ldst_mult<"stm", "", 0, 0, LdStMulFrm, IIC_iStore_m,
|
|
IIC_iStore_mu>;
|
|
|
|
} // neverHasSideEffects
|
|
|
|
// FIXME: remove when we have a way to marking a MI with these properties.
|
|
// FIXME: Should pc be an implicit operand like PICADD, etc?
|
|
let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
|
|
hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
|
|
def LDMIA_RET : ARMPseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
|
|
reglist:$regs, variable_ops),
|
|
4, IIC_iLoad_mBr, [],
|
|
(LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
|
|
RegConstraint<"$Rn = $wb">;
|
|
|
|
let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
|
|
defm sysLDM : arm_ldst_mult<"ldm", " ^", 1, 1, LdStMulFrm, IIC_iLoad_m,
|
|
IIC_iLoad_mu>;
|
|
|
|
let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
|
|
defm sysSTM : arm_ldst_mult<"stm", " ^", 0, 1, LdStMulFrm, IIC_iStore_m,
|
|
IIC_iStore_mu>;
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Move Instructions.
|
|
//
|
|
|
|
let neverHasSideEffects = 1 in
|
|
def MOVr : AsI1<0b1101, (outs GPR:$Rd), (ins GPR:$Rm), DPFrm, IIC_iMOVr,
|
|
"mov", "\t$Rd, $Rm", []>, UnaryDP {
|
|
bits<4> Rd;
|
|
bits<4> Rm;
|
|
|
|
let Inst{19-16} = 0b0000;
|
|
let Inst{11-4} = 0b00000000;
|
|
let Inst{25} = 0;
|
|
let Inst{3-0} = Rm;
|
|
let Inst{15-12} = Rd;
|
|
}
|
|
|
|
def : ARMInstAlias<"movs${p} $Rd, $Rm",
|
|
(MOVr GPR:$Rd, GPR:$Rm, pred:$p, CPSR)>;
|
|
|
|
// A version for the smaller set of tail call registers.
|
|
let neverHasSideEffects = 1 in
|
|
def MOVr_TC : AsI1<0b1101, (outs tcGPR:$Rd), (ins tcGPR:$Rm), DPFrm,
|
|
IIC_iMOVr, "mov", "\t$Rd, $Rm", []>, UnaryDP {
|
|
bits<4> Rd;
|
|
bits<4> Rm;
|
|
|
|
let Inst{11-4} = 0b00000000;
|
|
let Inst{25} = 0;
|
|
let Inst{3-0} = Rm;
|
|
let Inst{15-12} = Rd;
|
|
}
|
|
|
|
def MOVsr : AsI1<0b1101, (outs GPRnopc:$Rd), (ins shift_so_reg_reg:$src),
|
|
DPSoRegRegFrm, IIC_iMOVsr,
|
|
"mov", "\t$Rd, $src",
|
|
[(set GPRnopc:$Rd, shift_so_reg_reg:$src)]>, UnaryDP {
|
|
bits<4> Rd;
|
|
bits<12> src;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = 0b0000;
|
|
let Inst{11-8} = src{11-8};
|
|
let Inst{7} = 0;
|
|
let Inst{6-5} = src{6-5};
|
|
let Inst{4} = 1;
|
|
let Inst{3-0} = src{3-0};
|
|
let Inst{25} = 0;
|
|
}
|
|
|
|
def MOVsi : AsI1<0b1101, (outs GPR:$Rd), (ins shift_so_reg_imm:$src),
|
|
DPSoRegImmFrm, IIC_iMOVsr,
|
|
"mov", "\t$Rd, $src", [(set GPR:$Rd, shift_so_reg_imm:$src)]>,
|
|
UnaryDP {
|
|
bits<4> Rd;
|
|
bits<12> src;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = 0b0000;
|
|
let Inst{11-5} = src{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = src{3-0};
|
|
let Inst{25} = 0;
|
|
}
|
|
|
|
let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
|
|
def MOVi : AsI1<0b1101, (outs GPR:$Rd), (ins so_imm:$imm), DPFrm, IIC_iMOVi,
|
|
"mov", "\t$Rd, $imm", [(set GPR:$Rd, so_imm:$imm)]>, UnaryDP {
|
|
bits<4> Rd;
|
|
bits<12> imm;
|
|
let Inst{25} = 1;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = 0b0000;
|
|
let Inst{11-0} = imm;
|
|
}
|
|
|
|
let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
|
|
def MOVi16 : AI1<0b1000, (outs GPR:$Rd), (ins imm0_65535_expr:$imm),
|
|
DPFrm, IIC_iMOVi,
|
|
"movw", "\t$Rd, $imm",
|
|
[(set GPR:$Rd, imm0_65535:$imm)]>,
|
|
Requires<[IsARM, HasV6T2]>, UnaryDP {
|
|
bits<4> Rd;
|
|
bits<16> imm;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-0} = imm{11-0};
|
|
let Inst{19-16} = imm{15-12};
|
|
let Inst{20} = 0;
|
|
let Inst{25} = 1;
|
|
let DecoderMethod = "DecodeArmMOVTWInstruction";
|
|
}
|
|
|
|
def : InstAlias<"mov${p} $Rd, $imm",
|
|
(MOVi16 GPR:$Rd, imm0_65535_expr:$imm, pred:$p)>,
|
|
Requires<[IsARM]>;
|
|
|
|
def MOVi16_ga_pcrel : PseudoInst<(outs GPR:$Rd),
|
|
(ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
|
|
|
|
let Constraints = "$src = $Rd" in {
|
|
def MOVTi16 : AI1<0b1010, (outs GPRnopc:$Rd),
|
|
(ins GPR:$src, imm0_65535_expr:$imm),
|
|
DPFrm, IIC_iMOVi,
|
|
"movt", "\t$Rd, $imm",
|
|
[(set GPRnopc:$Rd,
|
|
(or (and GPR:$src, 0xffff),
|
|
lo16AllZero:$imm))]>, UnaryDP,
|
|
Requires<[IsARM, HasV6T2]> {
|
|
bits<4> Rd;
|
|
bits<16> imm;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-0} = imm{11-0};
|
|
let Inst{19-16} = imm{15-12};
|
|
let Inst{20} = 0;
|
|
let Inst{25} = 1;
|
|
let DecoderMethod = "DecodeArmMOVTWInstruction";
|
|
}
|
|
|
|
def MOVTi16_ga_pcrel : PseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
|
|
|
|
} // Constraints
|
|
|
|
def : ARMPat<(or GPR:$src, 0xffff0000), (MOVTi16 GPR:$src, 0xffff)>,
|
|
Requires<[IsARM, HasV6T2]>;
|
|
|
|
let Uses = [CPSR] in
|
|
def RRX: PseudoInst<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVsi,
|
|
[(set GPR:$Rd, (ARMrrx GPR:$Rm))]>, UnaryDP,
|
|
Requires<[IsARM]>;
|
|
|
|
// These aren't really mov instructions, but we have to define them this way
|
|
// due to flag operands.
|
|
|
|
let Defs = [CPSR] in {
|
|
def MOVsrl_flag : PseudoInst<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
|
|
[(set GPR:$dst, (ARMsrl_flag GPR:$src))]>, UnaryDP,
|
|
Requires<[IsARM]>;
|
|
def MOVsra_flag : PseudoInst<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
|
|
[(set GPR:$dst, (ARMsra_flag GPR:$src))]>, UnaryDP,
|
|
Requires<[IsARM]>;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Extend Instructions.
|
|
//
|
|
|
|
// Sign extenders
|
|
|
|
def SXTB : AI_ext_rrot<0b01101010,
|
|
"sxtb", UnOpFrag<(sext_inreg node:$Src, i8)>>;
|
|
def SXTH : AI_ext_rrot<0b01101011,
|
|
"sxth", UnOpFrag<(sext_inreg node:$Src, i16)>>;
|
|
|
|
def SXTAB : AI_exta_rrot<0b01101010,
|
|
"sxtab", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
|
|
def SXTAH : AI_exta_rrot<0b01101011,
|
|
"sxtah", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
|
|
|
|
def SXTB16 : AI_ext_rrot_np<0b01101000, "sxtb16">;
|
|
|
|
def SXTAB16 : AI_exta_rrot_np<0b01101000, "sxtab16">;
|
|
|
|
// Zero extenders
|
|
|
|
let AddedComplexity = 16 in {
|
|
def UXTB : AI_ext_rrot<0b01101110,
|
|
"uxtb" , UnOpFrag<(and node:$Src, 0x000000FF)>>;
|
|
def UXTH : AI_ext_rrot<0b01101111,
|
|
"uxth" , UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
|
|
def UXTB16 : AI_ext_rrot<0b01101100,
|
|
"uxtb16", UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
|
|
|
|
// FIXME: This pattern incorrectly assumes the shl operator is a rotate.
|
|
// The transformation should probably be done as a combiner action
|
|
// instead so we can include a check for masking back in the upper
|
|
// eight bits of the source into the lower eight bits of the result.
|
|
//def : ARMV6Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
|
|
// (UXTB16r_rot GPR:$Src, 3)>;
|
|
def : ARMV6Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
|
|
(UXTB16 GPR:$Src, 1)>;
|
|
|
|
def UXTAB : AI_exta_rrot<0b01101110, "uxtab",
|
|
BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
|
|
def UXTAH : AI_exta_rrot<0b01101111, "uxtah",
|
|
BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
|
|
}
|
|
|
|
// This isn't safe in general, the add is two 16-bit units, not a 32-bit add.
|
|
def UXTAB16 : AI_exta_rrot_np<0b01101100, "uxtab16">;
|
|
|
|
|
|
def SBFX : I<(outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, imm0_31:$lsb, imm1_32:$width),
|
|
AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
|
|
"sbfx", "\t$Rd, $Rn, $lsb, $width", "", []>,
|
|
Requires<[IsARM, HasV6T2]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<5> lsb;
|
|
bits<5> width;
|
|
let Inst{27-21} = 0b0111101;
|
|
let Inst{6-4} = 0b101;
|
|
let Inst{20-16} = width;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-7} = lsb;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
def UBFX : I<(outs GPR:$Rd),
|
|
(ins GPR:$Rn, imm0_31:$lsb, imm1_32:$width),
|
|
AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
|
|
"ubfx", "\t$Rd, $Rn, $lsb, $width", "", []>,
|
|
Requires<[IsARM, HasV6T2]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<5> lsb;
|
|
bits<5> width;
|
|
let Inst{27-21} = 0b0111111;
|
|
let Inst{6-4} = 0b101;
|
|
let Inst{20-16} = width;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-7} = lsb;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Arithmetic Instructions.
|
|
//
|
|
|
|
defm ADD : AsI1_bin_irs<0b0100, "add",
|
|
IIC_iALUi, IIC_iALUr, IIC_iALUsr,
|
|
BinOpFrag<(add node:$LHS, node:$RHS)>, "ADD", 1>;
|
|
defm SUB : AsI1_bin_irs<0b0010, "sub",
|
|
IIC_iALUi, IIC_iALUr, IIC_iALUsr,
|
|
BinOpFrag<(sub node:$LHS, node:$RHS)>, "SUB">;
|
|
|
|
// ADD and SUB with 's' bit set.
|
|
//
|
|
// Currently, ADDS/SUBS are pseudo opcodes that exist only in the
|
|
// selection DAG. They are "lowered" to real ADD/SUB opcodes by
|
|
// AdjustInstrPostInstrSelection where we determine whether or not to
|
|
// set the "s" bit based on CPSR liveness.
|
|
//
|
|
// FIXME: Eliminate ADDS/SUBS pseudo opcodes after adding tablegen
|
|
// support for an optional CPSR definition that corresponds to the DAG
|
|
// node's second value. We can then eliminate the implicit def of CPSR.
|
|
defm ADDS : AsI1_bin_s_irs<IIC_iALUi, IIC_iALUr, IIC_iALUsr,
|
|
BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
|
|
defm SUBS : AsI1_bin_s_irs<IIC_iALUi, IIC_iALUr, IIC_iALUsr,
|
|
BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
|
|
|
|
defm ADC : AI1_adde_sube_irs<0b0101, "adc",
|
|
BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>,
|
|
"ADC", 1>;
|
|
defm SBC : AI1_adde_sube_irs<0b0110, "sbc",
|
|
BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>,
|
|
"SBC">;
|
|
|
|
defm RSB : AsI1_rbin_irs <0b0011, "rsb",
|
|
IIC_iALUi, IIC_iALUr, IIC_iALUsr,
|
|
BinOpFrag<(sub node:$LHS, node:$RHS)>, "RSB">;
|
|
|
|
// FIXME: Eliminate them if we can write def : Pat patterns which defines
|
|
// CPSR and the implicit def of CPSR is not needed.
|
|
defm RSBS : AsI1_rbin_s_is<IIC_iALUi, IIC_iALUr, IIC_iALUsr,
|
|
BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
|
|
|
|
defm RSC : AI1_rsc_irs<0b0111, "rsc",
|
|
BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>,
|
|
"RSC">;
|
|
|
|
// (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
|
|
// The assume-no-carry-in form uses the negation of the input since add/sub
|
|
// assume opposite meanings of the carry flag (i.e., carry == !borrow).
|
|
// See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
|
|
// details.
|
|
def : ARMPat<(add GPR:$src, so_imm_neg:$imm),
|
|
(SUBri GPR:$src, so_imm_neg:$imm)>;
|
|
def : ARMPat<(ARMaddc GPR:$src, so_imm_neg:$imm),
|
|
(SUBSri GPR:$src, so_imm_neg:$imm)>;
|
|
|
|
// The with-carry-in form matches bitwise not instead of the negation.
|
|
// Effectively, the inverse interpretation of the carry flag already accounts
|
|
// for part of the negation.
|
|
def : ARMPat<(ARMadde GPR:$src, so_imm_not:$imm, CPSR),
|
|
(SBCri GPR:$src, so_imm_not:$imm)>;
|
|
|
|
// Note: These are implemented in C++ code, because they have to generate
|
|
// ADD/SUBrs instructions, which use a complex pattern that a xform function
|
|
// cannot produce.
|
|
// (mul X, 2^n+1) -> (add (X << n), X)
|
|
// (mul X, 2^n-1) -> (rsb X, (X << n))
|
|
|
|
// ARM Arithmetic Instruction
|
|
// GPR:$dst = GPR:$a op GPR:$b
|
|
class AAI<bits<8> op27_20, bits<8> op11_4, string opc,
|
|
list<dag> pattern = [],
|
|
dag iops = (ins GPRnopc:$Rn, GPRnopc:$Rm),
|
|
string asm = "\t$Rd, $Rn, $Rm">
|
|
: AI<(outs GPRnopc:$Rd), iops, DPFrm, IIC_iALUr, opc, asm, pattern> {
|
|
bits<4> Rn;
|
|
bits<4> Rd;
|
|
bits<4> Rm;
|
|
let Inst{27-20} = op27_20;
|
|
let Inst{11-4} = op11_4;
|
|
let Inst{19-16} = Rn;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{3-0} = Rm;
|
|
|
|
let Unpredictable{11-8} = 0b1111;
|
|
}
|
|
|
|
// Saturating add/subtract
|
|
|
|
def QADD : AAI<0b00010000, 0b00000101, "qadd",
|
|
[(set GPRnopc:$Rd, (int_arm_qadd GPRnopc:$Rm, GPRnopc:$Rn))],
|
|
(ins GPRnopc:$Rm, GPRnopc:$Rn), "\t$Rd, $Rm, $Rn">;
|
|
def QSUB : AAI<0b00010010, 0b00000101, "qsub",
|
|
[(set GPRnopc:$Rd, (int_arm_qsub GPRnopc:$Rm, GPRnopc:$Rn))],
|
|
(ins GPRnopc:$Rm, GPRnopc:$Rn), "\t$Rd, $Rm, $Rn">;
|
|
def QDADD : AAI<0b00010100, 0b00000101, "qdadd", [],
|
|
(ins GPRnopc:$Rm, GPRnopc:$Rn),
|
|
"\t$Rd, $Rm, $Rn">;
|
|
def QDSUB : AAI<0b00010110, 0b00000101, "qdsub", [],
|
|
(ins GPRnopc:$Rm, GPRnopc:$Rn),
|
|
"\t$Rd, $Rm, $Rn">;
|
|
|
|
def QADD16 : AAI<0b01100010, 0b11110001, "qadd16">;
|
|
def QADD8 : AAI<0b01100010, 0b11111001, "qadd8">;
|
|
def QASX : AAI<0b01100010, 0b11110011, "qasx">;
|
|
def QSAX : AAI<0b01100010, 0b11110101, "qsax">;
|
|
def QSUB16 : AAI<0b01100010, 0b11110111, "qsub16">;
|
|
def QSUB8 : AAI<0b01100010, 0b11111111, "qsub8">;
|
|
def UQADD16 : AAI<0b01100110, 0b11110001, "uqadd16">;
|
|
def UQADD8 : AAI<0b01100110, 0b11111001, "uqadd8">;
|
|
def UQASX : AAI<0b01100110, 0b11110011, "uqasx">;
|
|
def UQSAX : AAI<0b01100110, 0b11110101, "uqsax">;
|
|
def UQSUB16 : AAI<0b01100110, 0b11110111, "uqsub16">;
|
|
def UQSUB8 : AAI<0b01100110, 0b11111111, "uqsub8">;
|
|
|
|
// Signed/Unsigned add/subtract
|
|
|
|
def SASX : AAI<0b01100001, 0b11110011, "sasx">;
|
|
def SADD16 : AAI<0b01100001, 0b11110001, "sadd16">;
|
|
def SADD8 : AAI<0b01100001, 0b11111001, "sadd8">;
|
|
def SSAX : AAI<0b01100001, 0b11110101, "ssax">;
|
|
def SSUB16 : AAI<0b01100001, 0b11110111, "ssub16">;
|
|
def SSUB8 : AAI<0b01100001, 0b11111111, "ssub8">;
|
|
def UASX : AAI<0b01100101, 0b11110011, "uasx">;
|
|
def UADD16 : AAI<0b01100101, 0b11110001, "uadd16">;
|
|
def UADD8 : AAI<0b01100101, 0b11111001, "uadd8">;
|
|
def USAX : AAI<0b01100101, 0b11110101, "usax">;
|
|
def USUB16 : AAI<0b01100101, 0b11110111, "usub16">;
|
|
def USUB8 : AAI<0b01100101, 0b11111111, "usub8">;
|
|
|
|
// Signed/Unsigned halving add/subtract
|
|
|
|
def SHASX : AAI<0b01100011, 0b11110011, "shasx">;
|
|
def SHADD16 : AAI<0b01100011, 0b11110001, "shadd16">;
|
|
def SHADD8 : AAI<0b01100011, 0b11111001, "shadd8">;
|
|
def SHSAX : AAI<0b01100011, 0b11110101, "shsax">;
|
|
def SHSUB16 : AAI<0b01100011, 0b11110111, "shsub16">;
|
|
def SHSUB8 : AAI<0b01100011, 0b11111111, "shsub8">;
|
|
def UHASX : AAI<0b01100111, 0b11110011, "uhasx">;
|
|
def UHADD16 : AAI<0b01100111, 0b11110001, "uhadd16">;
|
|
def UHADD8 : AAI<0b01100111, 0b11111001, "uhadd8">;
|
|
def UHSAX : AAI<0b01100111, 0b11110101, "uhsax">;
|
|
def UHSUB16 : AAI<0b01100111, 0b11110111, "uhsub16">;
|
|
def UHSUB8 : AAI<0b01100111, 0b11111111, "uhsub8">;
|
|
|
|
// Unsigned Sum of Absolute Differences [and Accumulate].
|
|
|
|
def USAD8 : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
MulFrm /* for convenience */, NoItinerary, "usad8",
|
|
"\t$Rd, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV6]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let Inst{27-20} = 0b01111000;
|
|
let Inst{15-12} = 0b1111;
|
|
let Inst{7-4} = 0b0001;
|
|
let Inst{19-16} = Rd;
|
|
let Inst{11-8} = Rm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
def USADA8 : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
|
|
MulFrm /* for convenience */, NoItinerary, "usada8",
|
|
"\t$Rd, $Rn, $Rm, $Ra", []>,
|
|
Requires<[IsARM, HasV6]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
bits<4> Ra;
|
|
let Inst{27-20} = 0b01111000;
|
|
let Inst{7-4} = 0b0001;
|
|
let Inst{19-16} = Rd;
|
|
let Inst{15-12} = Ra;
|
|
let Inst{11-8} = Rm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
// Signed/Unsigned saturate
|
|
|
|
def SSAT : AI<(outs GPRnopc:$Rd),
|
|
(ins imm1_32:$sat_imm, GPRnopc:$Rn, shift_imm:$sh),
|
|
SatFrm, NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
|
|
bits<4> Rd;
|
|
bits<5> sat_imm;
|
|
bits<4> Rn;
|
|
bits<8> sh;
|
|
let Inst{27-21} = 0b0110101;
|
|
let Inst{5-4} = 0b01;
|
|
let Inst{20-16} = sat_imm;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-7} = sh{4-0};
|
|
let Inst{6} = sh{5};
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
def SSAT16 : AI<(outs GPRnopc:$Rd),
|
|
(ins imm1_16:$sat_imm, GPRnopc:$Rn), SatFrm,
|
|
NoItinerary, "ssat16", "\t$Rd, $sat_imm, $Rn", []> {
|
|
bits<4> Rd;
|
|
bits<4> sat_imm;
|
|
bits<4> Rn;
|
|
let Inst{27-20} = 0b01101010;
|
|
let Inst{11-4} = 0b11110011;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = sat_imm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
def USAT : AI<(outs GPRnopc:$Rd),
|
|
(ins imm0_31:$sat_imm, GPRnopc:$Rn, shift_imm:$sh),
|
|
SatFrm, NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
|
|
bits<4> Rd;
|
|
bits<5> sat_imm;
|
|
bits<4> Rn;
|
|
bits<8> sh;
|
|
let Inst{27-21} = 0b0110111;
|
|
let Inst{5-4} = 0b01;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-7} = sh{4-0};
|
|
let Inst{6} = sh{5};
|
|
let Inst{20-16} = sat_imm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
def USAT16 : AI<(outs GPRnopc:$Rd),
|
|
(ins imm0_15:$sat_imm, GPRnopc:$Rn), SatFrm,
|
|
NoItinerary, "usat16", "\t$Rd, $sat_imm, $Rn", []> {
|
|
bits<4> Rd;
|
|
bits<4> sat_imm;
|
|
bits<4> Rn;
|
|
let Inst{27-20} = 0b01101110;
|
|
let Inst{11-4} = 0b11110011;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{19-16} = sat_imm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
def : ARMV6Pat<(int_arm_ssat GPRnopc:$a, imm:$pos),
|
|
(SSAT imm:$pos, GPRnopc:$a, 0)>;
|
|
def : ARMV6Pat<(int_arm_usat GPRnopc:$a, imm:$pos),
|
|
(USAT imm:$pos, GPRnopc:$a, 0)>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Bitwise Instructions.
|
|
//
|
|
|
|
defm AND : AsI1_bin_irs<0b0000, "and",
|
|
IIC_iBITi, IIC_iBITr, IIC_iBITsr,
|
|
BinOpFrag<(and node:$LHS, node:$RHS)>, "AND", 1>;
|
|
defm ORR : AsI1_bin_irs<0b1100, "orr",
|
|
IIC_iBITi, IIC_iBITr, IIC_iBITsr,
|
|
BinOpFrag<(or node:$LHS, node:$RHS)>, "ORR", 1>;
|
|
defm EOR : AsI1_bin_irs<0b0001, "eor",
|
|
IIC_iBITi, IIC_iBITr, IIC_iBITsr,
|
|
BinOpFrag<(xor node:$LHS, node:$RHS)>, "EOR", 1>;
|
|
defm BIC : AsI1_bin_irs<0b1110, "bic",
|
|
IIC_iBITi, IIC_iBITr, IIC_iBITsr,
|
|
BinOpFrag<(and node:$LHS, (not node:$RHS))>, "BIC">;
|
|
|
|
// FIXME: bf_inv_mask_imm should be two operands, the lsb and the msb, just
|
|
// like in the actual instruction encoding. The complexity of mapping the mask
|
|
// to the lsb/msb pair should be handled by ISel, not encapsulated in the
|
|
// instruction description.
|
|
def BFC : I<(outs GPR:$Rd), (ins GPR:$src, bf_inv_mask_imm:$imm),
|
|
AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
|
|
"bfc", "\t$Rd, $imm", "$src = $Rd",
|
|
[(set GPR:$Rd, (and GPR:$src, bf_inv_mask_imm:$imm))]>,
|
|
Requires<[IsARM, HasV6T2]> {
|
|
bits<4> Rd;
|
|
bits<10> imm;
|
|
let Inst{27-21} = 0b0111110;
|
|
let Inst{6-0} = 0b0011111;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-7} = imm{4-0}; // lsb
|
|
let Inst{20-16} = imm{9-5}; // msb
|
|
}
|
|
|
|
// A8.6.18 BFI - Bitfield insert (Encoding A1)
|
|
def BFI:I<(outs GPRnopc:$Rd), (ins GPRnopc:$src, GPR:$Rn, bf_inv_mask_imm:$imm),
|
|
AddrMode1, 4, IndexModeNone, DPFrm, IIC_iUNAsi,
|
|
"bfi", "\t$Rd, $Rn, $imm", "$src = $Rd",
|
|
[(set GPRnopc:$Rd, (ARMbfi GPRnopc:$src, GPR:$Rn,
|
|
bf_inv_mask_imm:$imm))]>,
|
|
Requires<[IsARM, HasV6T2]> {
|
|
bits<4> Rd;
|
|
bits<4> Rn;
|
|
bits<10> imm;
|
|
let Inst{27-21} = 0b0111110;
|
|
let Inst{6-4} = 0b001; // Rn: Inst{3-0} != 15
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-7} = imm{4-0}; // lsb
|
|
let Inst{20-16} = imm{9-5}; // width
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
def MVNr : AsI1<0b1111, (outs GPR:$Rd), (ins GPR:$Rm), DPFrm, IIC_iMVNr,
|
|
"mvn", "\t$Rd, $Rm",
|
|
[(set GPR:$Rd, (not GPR:$Rm))]>, UnaryDP {
|
|
bits<4> Rd;
|
|
bits<4> Rm;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = 0b0000;
|
|
let Inst{11-4} = 0b00000000;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{3-0} = Rm;
|
|
}
|
|
def MVNsi : AsI1<0b1111, (outs GPR:$Rd), (ins so_reg_imm:$shift),
|
|
DPSoRegImmFrm, IIC_iMVNsr, "mvn", "\t$Rd, $shift",
|
|
[(set GPR:$Rd, (not so_reg_imm:$shift))]>, UnaryDP {
|
|
bits<4> Rd;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = 0b0000;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-5} = shift{11-5};
|
|
let Inst{4} = 0;
|
|
let Inst{3-0} = shift{3-0};
|
|
}
|
|
def MVNsr : AsI1<0b1111, (outs GPR:$Rd), (ins so_reg_reg:$shift),
|
|
DPSoRegRegFrm, IIC_iMVNsr, "mvn", "\t$Rd, $shift",
|
|
[(set GPR:$Rd, (not so_reg_reg:$shift))]>, UnaryDP {
|
|
bits<4> Rd;
|
|
bits<12> shift;
|
|
let Inst{25} = 0;
|
|
let Inst{19-16} = 0b0000;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-8} = shift{11-8};
|
|
let Inst{7} = 0;
|
|
let Inst{6-5} = shift{6-5};
|
|
let Inst{4} = 1;
|
|
let Inst{3-0} = shift{3-0};
|
|
}
|
|
let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
|
|
def MVNi : AsI1<0b1111, (outs GPR:$Rd), (ins so_imm:$imm), DPFrm,
|
|
IIC_iMVNi, "mvn", "\t$Rd, $imm",
|
|
[(set GPR:$Rd, so_imm_not:$imm)]>,UnaryDP {
|
|
bits<4> Rd;
|
|
bits<12> imm;
|
|
let Inst{25} = 1;
|
|
let Inst{19-16} = 0b0000;
|
|
let Inst{15-12} = Rd;
|
|
let Inst{11-0} = imm;
|
|
}
|
|
|
|
def : ARMPat<(and GPR:$src, so_imm_not:$imm),
|
|
(BICri GPR:$src, so_imm_not:$imm)>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Multiply Instructions.
|
|
//
|
|
class AsMul1I32<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
|
|
bits<4> Rd;
|
|
bits<4> Rm;
|
|
bits<4> Rn;
|
|
let Inst{19-16} = Rd;
|
|
let Inst{11-8} = Rm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
class AsMul1I64<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
|
|
string opc, string asm, list<dag> pattern>
|
|
: AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
|
|
bits<4> RdLo;
|
|
bits<4> RdHi;
|
|
bits<4> Rm;
|
|
bits<4> Rn;
|
|
let Inst{19-16} = RdHi;
|
|
let Inst{15-12} = RdLo;
|
|
let Inst{11-8} = Rm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
// FIXME: The v5 pseudos are only necessary for the additional Constraint
|
|
// property. Remove them when it's possible to add those properties
|
|
// on an individual MachineInstr, not just an instuction description.
|
|
let isCommutable = 1 in {
|
|
def MUL : AsMul1I32<0b0000000, (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, GPRnopc:$Rm),
|
|
IIC_iMUL32, "mul", "\t$Rd, $Rn, $Rm",
|
|
[(set GPRnopc:$Rd, (mul GPRnopc:$Rn, GPRnopc:$Rm))]>,
|
|
Requires<[IsARM, HasV6]> {
|
|
let Inst{15-12} = 0b0000;
|
|
let Unpredictable{15-12} = 0b1111;
|
|
}
|
|
|
|
let Constraints = "@earlyclobber $Rd" in
|
|
def MULv5: ARMPseudoExpand<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, GPRnopc:$Rm,
|
|
pred:$p, cc_out:$s),
|
|
4, IIC_iMUL32,
|
|
[(set GPRnopc:$Rd, (mul GPRnopc:$Rn, GPRnopc:$Rm))],
|
|
(MUL GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p, cc_out:$s)>,
|
|
Requires<[IsARM, NoV6]>;
|
|
}
|
|
|
|
def MLA : AsMul1I32<0b0000001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
|
|
IIC_iMAC32, "mla", "\t$Rd, $Rn, $Rm, $Ra",
|
|
[(set GPR:$Rd, (add (mul GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
|
|
Requires<[IsARM, HasV6]> {
|
|
bits<4> Ra;
|
|
let Inst{15-12} = Ra;
|
|
}
|
|
|
|
let Constraints = "@earlyclobber $Rd" in
|
|
def MLAv5: ARMPseudoExpand<(outs GPR:$Rd),
|
|
(ins GPR:$Rn, GPR:$Rm, GPR:$Ra, pred:$p, cc_out:$s),
|
|
4, IIC_iMAC32,
|
|
[(set GPR:$Rd, (add (mul GPR:$Rn, GPR:$Rm), GPR:$Ra))],
|
|
(MLA GPR:$Rd, GPR:$Rn, GPR:$Rm, GPR:$Ra, pred:$p, cc_out:$s)>,
|
|
Requires<[IsARM, NoV6]>;
|
|
|
|
def MLS : AMul1I<0b0000011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
|
|
IIC_iMAC32, "mls", "\t$Rd, $Rn, $Rm, $Ra",
|
|
[(set GPR:$Rd, (sub GPR:$Ra, (mul GPR:$Rn, GPR:$Rm)))]>,
|
|
Requires<[IsARM, HasV6T2]> {
|
|
bits<4> Rd;
|
|
bits<4> Rm;
|
|
bits<4> Rn;
|
|
bits<4> Ra;
|
|
let Inst{19-16} = Rd;
|
|
let Inst{15-12} = Ra;
|
|
let Inst{11-8} = Rm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
// Extra precision multiplies with low / high results
|
|
let neverHasSideEffects = 1 in {
|
|
let isCommutable = 1 in {
|
|
def SMULL : AsMul1I64<0b0000110, (outs GPR:$RdLo, GPR:$RdHi),
|
|
(ins GPR:$Rn, GPR:$Rm), IIC_iMUL64,
|
|
"smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
def UMULL : AsMul1I64<0b0000100, (outs GPR:$RdLo, GPR:$RdHi),
|
|
(ins GPR:$Rn, GPR:$Rm), IIC_iMUL64,
|
|
"umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
let Constraints = "@earlyclobber $RdLo,@earlyclobber $RdHi" in {
|
|
def SMULLv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
|
|
(ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
|
|
4, IIC_iMUL64, [],
|
|
(SMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
|
|
Requires<[IsARM, NoV6]>;
|
|
|
|
def UMULLv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
|
|
(ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
|
|
4, IIC_iMUL64, [],
|
|
(UMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
|
|
Requires<[IsARM, NoV6]>;
|
|
}
|
|
}
|
|
|
|
// Multiply + accumulate
|
|
def SMLAL : AsMul1I64<0b0000111, (outs GPR:$RdLo, GPR:$RdHi),
|
|
(ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
|
|
"smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV6]>;
|
|
def UMLAL : AsMul1I64<0b0000101, (outs GPR:$RdLo, GPR:$RdHi),
|
|
(ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
|
|
"umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
def UMAAL : AMul1I <0b0000010, (outs GPR:$RdLo, GPR:$RdHi),
|
|
(ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
|
|
"umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV6]> {
|
|
bits<4> RdLo;
|
|
bits<4> RdHi;
|
|
bits<4> Rm;
|
|
bits<4> Rn;
|
|
let Inst{19-16} = RdHi;
|
|
let Inst{15-12} = RdLo;
|
|
let Inst{11-8} = Rm;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
let Constraints = "@earlyclobber $RdLo,@earlyclobber $RdHi" in {
|
|
def SMLALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
|
|
(ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
|
|
4, IIC_iMAC64, [],
|
|
(SMLAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
|
|
Requires<[IsARM, NoV6]>;
|
|
def UMLALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
|
|
(ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
|
|
4, IIC_iMAC64, [],
|
|
(UMLAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
|
|
Requires<[IsARM, NoV6]>;
|
|
def UMAALv5 : ARMPseudoExpand<(outs GPR:$RdLo, GPR:$RdHi),
|
|
(ins GPR:$Rn, GPR:$Rm, pred:$p),
|
|
4, IIC_iMAC64, [],
|
|
(UMAAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p)>,
|
|
Requires<[IsARM, NoV6]>;
|
|
}
|
|
|
|
} // neverHasSideEffects
|
|
|
|
// Most significant word multiply
|
|
def SMMUL : AMul2I <0b0111010, 0b0001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
IIC_iMUL32, "smmul", "\t$Rd, $Rn, $Rm",
|
|
[(set GPR:$Rd, (mulhs GPR:$Rn, GPR:$Rm))]>,
|
|
Requires<[IsARM, HasV6]> {
|
|
let Inst{15-12} = 0b1111;
|
|
}
|
|
|
|
def SMMULR : AMul2I <0b0111010, 0b0011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
IIC_iMUL32, "smmulr", "\t$Rd, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV6]> {
|
|
let Inst{15-12} = 0b1111;
|
|
}
|
|
|
|
def SMMLA : AMul2Ia <0b0111010, 0b0001, (outs GPR:$Rd),
|
|
(ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
|
|
IIC_iMAC32, "smmla", "\t$Rd, $Rn, $Rm, $Ra",
|
|
[(set GPR:$Rd, (add (mulhs GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
def SMMLAR : AMul2Ia <0b0111010, 0b0011, (outs GPR:$Rd),
|
|
(ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
|
|
IIC_iMAC32, "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
def SMMLS : AMul2Ia <0b0111010, 0b1101, (outs GPR:$Rd),
|
|
(ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
|
|
IIC_iMAC32, "smmls", "\t$Rd, $Rn, $Rm, $Ra",
|
|
[(set GPR:$Rd, (sub GPR:$Ra, (mulhs GPR:$Rn, GPR:$Rm)))]>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
def SMMLSR : AMul2Ia <0b0111010, 0b1111, (outs GPR:$Rd),
|
|
(ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
|
|
IIC_iMAC32, "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
multiclass AI_smul<string opc, PatFrag opnode> {
|
|
def BB : AMulxyI<0b0001011, 0b00, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
IIC_iMUL16, !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
|
|
[(set GPR:$Rd, (opnode (sext_inreg GPR:$Rn, i16),
|
|
(sext_inreg GPR:$Rm, i16)))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def BT : AMulxyI<0b0001011, 0b10, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
IIC_iMUL16, !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
|
|
[(set GPR:$Rd, (opnode (sext_inreg GPR:$Rn, i16),
|
|
(sra GPR:$Rm, (i32 16))))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def TB : AMulxyI<0b0001011, 0b01, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
IIC_iMUL16, !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
|
|
[(set GPR:$Rd, (opnode (sra GPR:$Rn, (i32 16)),
|
|
(sext_inreg GPR:$Rm, i16)))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def TT : AMulxyI<0b0001011, 0b11, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
IIC_iMUL16, !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
|
|
[(set GPR:$Rd, (opnode (sra GPR:$Rn, (i32 16)),
|
|
(sra GPR:$Rm, (i32 16))))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def WB : AMulxyI<0b0001001, 0b01, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
IIC_iMUL16, !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
|
|
[(set GPR:$Rd, (sra (opnode GPR:$Rn,
|
|
(sext_inreg GPR:$Rm, i16)), (i32 16)))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def WT : AMulxyI<0b0001001, 0b11, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
|
|
IIC_iMUL16, !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
|
|
[(set GPR:$Rd, (sra (opnode GPR:$Rn,
|
|
(sra GPR:$Rm, (i32 16))), (i32 16)))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
}
|
|
|
|
|
|
multiclass AI_smla<string opc, PatFrag opnode> {
|
|
let DecoderMethod = "DecodeSMLAInstruction" in {
|
|
def BB : AMulxyIa<0b0001000, 0b00, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
|
|
IIC_iMAC16, !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
|
|
[(set GPRnopc:$Rd, (add GPR:$Ra,
|
|
(opnode (sext_inreg GPRnopc:$Rn, i16),
|
|
(sext_inreg GPRnopc:$Rm, i16))))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def BT : AMulxyIa<0b0001000, 0b10, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
|
|
IIC_iMAC16, !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
|
|
[(set GPRnopc:$Rd,
|
|
(add GPR:$Ra, (opnode (sext_inreg GPRnopc:$Rn, i16),
|
|
(sra GPRnopc:$Rm, (i32 16)))))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def TB : AMulxyIa<0b0001000, 0b01, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
|
|
IIC_iMAC16, !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
|
|
[(set GPRnopc:$Rd,
|
|
(add GPR:$Ra, (opnode (sra GPRnopc:$Rn, (i32 16)),
|
|
(sext_inreg GPRnopc:$Rm, i16))))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def TT : AMulxyIa<0b0001000, 0b11, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
|
|
IIC_iMAC16, !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
|
|
[(set GPRnopc:$Rd,
|
|
(add GPR:$Ra, (opnode (sra GPRnopc:$Rn, (i32 16)),
|
|
(sra GPRnopc:$Rm, (i32 16)))))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def WB : AMulxyIa<0b0001001, 0b00, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
|
|
IIC_iMAC16, !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
|
|
[(set GPRnopc:$Rd,
|
|
(add GPR:$Ra, (sra (opnode GPRnopc:$Rn,
|
|
(sext_inreg GPRnopc:$Rm, i16)), (i32 16))))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def WT : AMulxyIa<0b0001001, 0b10, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
|
|
IIC_iMAC16, !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
|
|
[(set GPRnopc:$Rd,
|
|
(add GPR:$Ra, (sra (opnode GPRnopc:$Rn,
|
|
(sra GPRnopc:$Rm, (i32 16))), (i32 16))))]>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
}
|
|
}
|
|
|
|
defm SMUL : AI_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
|
|
defm SMLA : AI_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
|
|
|
|
// Halfword multiply accumulate long: SMLAL<x><y>.
|
|
def SMLALBB : AMulxyI64<0b0001010, 0b00, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm),
|
|
IIC_iMAC64, "smlalbb", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def SMLALBT : AMulxyI64<0b0001010, 0b10, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm),
|
|
IIC_iMAC64, "smlalbt", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def SMLALTB : AMulxyI64<0b0001010, 0b01, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm),
|
|
IIC_iMAC64, "smlaltb", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
def SMLALTT : AMulxyI64<0b0001010, 0b11, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm),
|
|
IIC_iMAC64, "smlaltt", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
|
|
Requires<[IsARM, HasV5TE]>;
|
|
|
|
// Helper class for AI_smld.
|
|
class AMulDualIbase<bit long, bit sub, bit swap, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm>
|
|
: AI<oops, iops, MulFrm, itin, opc, asm, []>, Requires<[IsARM, HasV6]> {
|
|
bits<4> Rn;
|
|
bits<4> Rm;
|
|
let Inst{27-23} = 0b01110;
|
|
let Inst{22} = long;
|
|
let Inst{21-20} = 0b00;
|
|
let Inst{11-8} = Rm;
|
|
let Inst{7} = 0;
|
|
let Inst{6} = sub;
|
|
let Inst{5} = swap;
|
|
let Inst{4} = 1;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
class AMulDualI<bit long, bit sub, bit swap, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm>
|
|
: AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
|
|
bits<4> Rd;
|
|
let Inst{15-12} = 0b1111;
|
|
let Inst{19-16} = Rd;
|
|
}
|
|
class AMulDualIa<bit long, bit sub, bit swap, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm>
|
|
: AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
|
|
bits<4> Ra;
|
|
bits<4> Rd;
|
|
let Inst{19-16} = Rd;
|
|
let Inst{15-12} = Ra;
|
|
}
|
|
class AMulDualI64<bit long, bit sub, bit swap, dag oops, dag iops,
|
|
InstrItinClass itin, string opc, string asm>
|
|
: AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
|
|
bits<4> RdLo;
|
|
bits<4> RdHi;
|
|
let Inst{19-16} = RdHi;
|
|
let Inst{15-12} = RdLo;
|
|
}
|
|
|
|
multiclass AI_smld<bit sub, string opc> {
|
|
|
|
def D : AMulDualIa<0, sub, 0, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
|
|
NoItinerary, !strconcat(opc, "d"), "\t$Rd, $Rn, $Rm, $Ra">;
|
|
|
|
def DX: AMulDualIa<0, sub, 1, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm, GPR:$Ra),
|
|
NoItinerary, !strconcat(opc, "dx"), "\t$Rd, $Rn, $Rm, $Ra">;
|
|
|
|
def LD: AMulDualI64<1, sub, 0, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm), NoItinerary,
|
|
!strconcat(opc, "ld"), "\t$RdLo, $RdHi, $Rn, $Rm">;
|
|
|
|
def LDX : AMulDualI64<1, sub, 1, (outs GPRnopc:$RdLo, GPRnopc:$RdHi),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm), NoItinerary,
|
|
!strconcat(opc, "ldx"),"\t$RdLo, $RdHi, $Rn, $Rm">;
|
|
|
|
}
|
|
|
|
defm SMLA : AI_smld<0, "smla">;
|
|
defm SMLS : AI_smld<1, "smls">;
|
|
|
|
multiclass AI_sdml<bit sub, string opc> {
|
|
|
|
def D:AMulDualI<0, sub, 0, (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, GPRnopc:$Rm),
|
|
NoItinerary, !strconcat(opc, "d"), "\t$Rd, $Rn, $Rm">;
|
|
def DX:AMulDualI<0, sub, 1, (outs GPRnopc:$Rd),(ins GPRnopc:$Rn, GPRnopc:$Rm),
|
|
NoItinerary, !strconcat(opc, "dx"), "\t$Rd, $Rn, $Rm">;
|
|
}
|
|
|
|
defm SMUA : AI_sdml<0, "smua">;
|
|
defm SMUS : AI_sdml<1, "smus">;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Misc. Arithmetic Instructions.
|
|
//
|
|
|
|
def CLZ : AMiscA1I<0b000010110, 0b0001, (outs GPR:$Rd), (ins GPR:$Rm),
|
|
IIC_iUNAr, "clz", "\t$Rd, $Rm",
|
|
[(set GPR:$Rd, (ctlz GPR:$Rm))]>, Requires<[IsARM, HasV5T]>;
|
|
|
|
def RBIT : AMiscA1I<0b01101111, 0b0011, (outs GPR:$Rd), (ins GPR:$Rm),
|
|
IIC_iUNAr, "rbit", "\t$Rd, $Rm",
|
|
[(set GPR:$Rd, (ARMrbit GPR:$Rm))]>,
|
|
Requires<[IsARM, HasV6T2]>;
|
|
|
|
def REV : AMiscA1I<0b01101011, 0b0011, (outs GPR:$Rd), (ins GPR:$Rm),
|
|
IIC_iUNAr, "rev", "\t$Rd, $Rm",
|
|
[(set GPR:$Rd, (bswap GPR:$Rm))]>, Requires<[IsARM, HasV6]>;
|
|
|
|
let AddedComplexity = 5 in
|
|
def REV16 : AMiscA1I<0b01101011, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm),
|
|
IIC_iUNAr, "rev16", "\t$Rd, $Rm",
|
|
[(set GPR:$Rd, (rotr (bswap GPR:$Rm), (i32 16)))]>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
let AddedComplexity = 5 in
|
|
def REVSH : AMiscA1I<0b01101111, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm),
|
|
IIC_iUNAr, "revsh", "\t$Rd, $Rm",
|
|
[(set GPR:$Rd, (sra (bswap GPR:$Rm), (i32 16)))]>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
def : ARMV6Pat<(or (sra (shl GPR:$Rm, (i32 24)), (i32 16)),
|
|
(and (srl GPR:$Rm, (i32 8)), 0xFF)),
|
|
(REVSH GPR:$Rm)>;
|
|
|
|
def PKHBT : APKHI<0b01101000, 0, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm, pkh_lsl_amt:$sh),
|
|
IIC_iALUsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
|
|
[(set GPRnopc:$Rd, (or (and GPRnopc:$Rn, 0xFFFF),
|
|
(and (shl GPRnopc:$Rm, pkh_lsl_amt:$sh),
|
|
0xFFFF0000)))]>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
// Alternate cases for PKHBT where identities eliminate some nodes.
|
|
def : ARMV6Pat<(or (and GPRnopc:$Rn, 0xFFFF), (and GPRnopc:$Rm, 0xFFFF0000)),
|
|
(PKHBT GPRnopc:$Rn, GPRnopc:$Rm, 0)>;
|
|
def : ARMV6Pat<(or (and GPRnopc:$Rn, 0xFFFF), (shl GPRnopc:$Rm, imm16_31:$sh)),
|
|
(PKHBT GPRnopc:$Rn, GPRnopc:$Rm, imm16_31:$sh)>;
|
|
|
|
// Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
|
|
// will match the pattern below.
|
|
def PKHTB : APKHI<0b01101000, 1, (outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, GPRnopc:$Rm, pkh_asr_amt:$sh),
|
|
IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
|
|
[(set GPRnopc:$Rd, (or (and GPRnopc:$Rn, 0xFFFF0000),
|
|
(and (sra GPRnopc:$Rm, pkh_asr_amt:$sh),
|
|
0xFFFF)))]>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
// Alternate cases for PKHTB where identities eliminate some nodes. Note that
|
|
// a shift amount of 0 is *not legal* here, it is PKHBT instead.
|
|
def : ARMV6Pat<(or (and GPRnopc:$src1, 0xFFFF0000),
|
|
(srl GPRnopc:$src2, imm16_31:$sh)),
|
|
(PKHTB GPRnopc:$src1, GPRnopc:$src2, imm16_31:$sh)>;
|
|
def : ARMV6Pat<(or (and GPRnopc:$src1, 0xFFFF0000),
|
|
(and (srl GPRnopc:$src2, imm1_15:$sh), 0xFFFF)),
|
|
(PKHTB GPRnopc:$src1, GPRnopc:$src2, imm1_15:$sh)>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Comparison Instructions...
|
|
//
|
|
|
|
defm CMP : AI1_cmp_irs<0b1010, "cmp",
|
|
IIC_iCMPi, IIC_iCMPr, IIC_iCMPsr,
|
|
BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
|
|
|
|
// ARMcmpZ can re-use the above instruction definitions.
|
|
def : ARMPat<(ARMcmpZ GPR:$src, so_imm:$imm),
|
|
(CMPri GPR:$src, so_imm:$imm)>;
|
|
def : ARMPat<(ARMcmpZ GPR:$src, GPR:$rhs),
|
|
(CMPrr GPR:$src, GPR:$rhs)>;
|
|
def : ARMPat<(ARMcmpZ GPR:$src, so_reg_imm:$rhs),
|
|
(CMPrsi GPR:$src, so_reg_imm:$rhs)>;
|
|
def : ARMPat<(ARMcmpZ GPR:$src, so_reg_reg:$rhs),
|
|
(CMPrsr GPR:$src, so_reg_reg:$rhs)>;
|
|
|
|
// FIXME: We have to be careful when using the CMN instruction and comparison
|
|
// with 0. One would expect these two pieces of code should give identical
|
|
// results:
|
|
//
|
|
// rsbs r1, r1, 0
|
|
// cmp r0, r1
|
|
// mov r0, #0
|
|
// it ls
|
|
// mov r0, #1
|
|
//
|
|
// and:
|
|
//
|
|
// cmn r0, r1
|
|
// mov r0, #0
|
|
// it ls
|
|
// mov r0, #1
|
|
//
|
|
// However, the CMN gives the *opposite* result when r1 is 0. This is because
|
|
// the carry flag is set in the CMP case but not in the CMN case. In short, the
|
|
// CMP instruction doesn't perform a truncate of the (logical) NOT of 0 plus the
|
|
// value of r0 and the carry bit (because the "carry bit" parameter to
|
|
// AddWithCarry is defined as 1 in this case, the carry flag will always be set
|
|
// when r0 >= 0). The CMN instruction doesn't perform a NOT of 0 so there is
|
|
// never a "carry" when this AddWithCarry is performed (because the "carry bit"
|
|
// parameter to AddWithCarry is defined as 0).
|
|
//
|
|
// When x is 0 and unsigned:
|
|
//
|
|
// x = 0
|
|
// ~x = 0xFFFF FFFF
|
|
// ~x + 1 = 0x1 0000 0000
|
|
// (-x = 0) != (0x1 0000 0000 = ~x + 1)
|
|
//
|
|
// Therefore, we should disable CMN when comparing against zero, until we can
|
|
// limit when the CMN instruction is used (when we know that the RHS is not 0 or
|
|
// when it's a comparison which doesn't look at the 'carry' flag).
|
|
//
|
|
// (See the ARM docs for the "AddWithCarry" pseudo-code.)
|
|
//
|
|
// This is related to <rdar://problem/7569620>.
|
|
//
|
|
//defm CMN : AI1_cmp_irs<0b1011, "cmn",
|
|
// BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
|
|
|
|
// Note that TST/TEQ don't set all the same flags that CMP does!
|
|
defm TST : AI1_cmp_irs<0b1000, "tst",
|
|
IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
|
|
BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>, 1>;
|
|
defm TEQ : AI1_cmp_irs<0b1001, "teq",
|
|
IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
|
|
BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>, 1>;
|
|
|
|
defm CMNz : AI1_cmp_irs<0b1011, "cmn",
|
|
IIC_iCMPi, IIC_iCMPr, IIC_iCMPsr,
|
|
BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
|
|
|
|
//def : ARMPat<(ARMcmp GPR:$src, so_imm_neg:$imm),
|
|
// (CMNri GPR:$src, so_imm_neg:$imm)>;
|
|
|
|
def : ARMPat<(ARMcmpZ GPR:$src, so_imm_neg:$imm),
|
|
(CMNzri GPR:$src, so_imm_neg:$imm)>;
|
|
|
|
// Pseudo i64 compares for some floating point compares.
|
|
let usesCustomInserter = 1, isBranch = 1, isTerminator = 1,
|
|
Defs = [CPSR] in {
|
|
def BCCi64 : PseudoInst<(outs),
|
|
(ins i32imm:$cc, GPR:$lhs1, GPR:$lhs2, GPR:$rhs1, GPR:$rhs2, brtarget:$dst),
|
|
IIC_Br,
|
|
[(ARMBcci64 imm:$cc, GPR:$lhs1, GPR:$lhs2, GPR:$rhs1, GPR:$rhs2, bb:$dst)]>;
|
|
|
|
def BCCZi64 : PseudoInst<(outs),
|
|
(ins i32imm:$cc, GPR:$lhs1, GPR:$lhs2, brtarget:$dst), IIC_Br,
|
|
[(ARMBcci64 imm:$cc, GPR:$lhs1, GPR:$lhs2, 0, 0, bb:$dst)]>;
|
|
} // usesCustomInserter
|
|
|
|
|
|
// Conditional moves
|
|
// FIXME: should be able to write a pattern for ARMcmov, but can't use
|
|
// a two-value operand where a dag node expects two operands. :(
|
|
let neverHasSideEffects = 1 in {
|
|
|
|
let isCommutable = 1 in
|
|
def MOVCCr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$false, GPR:$Rm, pred:$p),
|
|
4, IIC_iCMOVr,
|
|
[/*(set GPR:$Rd, (ARMcmov GPR:$false, GPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
|
|
RegConstraint<"$false = $Rd">;
|
|
|
|
def MOVCCsi : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$false, so_reg_imm:$shift, pred:$p),
|
|
4, IIC_iCMOVsr,
|
|
[/*(set GPR:$Rd, (ARMcmov GPR:$false, so_reg_imm:$shift,
|
|
imm:$cc, CCR:$ccr))*/]>,
|
|
RegConstraint<"$false = $Rd">;
|
|
def MOVCCsr : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$false, so_reg_reg:$shift, pred:$p),
|
|
4, IIC_iCMOVsr,
|
|
[/*(set GPR:$Rd, (ARMcmov GPR:$false, so_reg_reg:$shift,
|
|
imm:$cc, CCR:$ccr))*/]>,
|
|
RegConstraint<"$false = $Rd">;
|
|
|
|
|
|
let isMoveImm = 1 in
|
|
def MOVCCi16 : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$false, imm0_65535_expr:$imm, pred:$p),
|
|
4, IIC_iMOVi,
|
|
[]>,
|
|
RegConstraint<"$false = $Rd">, Requires<[IsARM, HasV6T2]>;
|
|
|
|
let isMoveImm = 1 in
|
|
def MOVCCi : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$false, so_imm:$imm, pred:$p),
|
|
4, IIC_iCMOVi,
|
|
[/*(set GPR:$Rd, (ARMcmov GPR:$false, so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
|
|
RegConstraint<"$false = $Rd">;
|
|
|
|
// Two instruction predicate mov immediate.
|
|
let isMoveImm = 1 in
|
|
def MOVCCi32imm : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$false, i32imm:$src, pred:$p),
|
|
8, IIC_iCMOVix2, []>, RegConstraint<"$false = $Rd">;
|
|
|
|
let isMoveImm = 1 in
|
|
def MVNCCi : ARMPseudoInst<(outs GPR:$Rd),
|
|
(ins GPR:$false, so_imm:$imm, pred:$p),
|
|
4, IIC_iCMOVi,
|
|
[/*(set GPR:$Rd, (ARMcmov GPR:$false, so_imm_not:$imm, imm:$cc, CCR:$ccr))*/]>,
|
|
RegConstraint<"$false = $Rd">;
|
|
|
|
// Conditional instructions
|
|
multiclass AsI1_bincc_irs<Instruction iri, Instruction irr, Instruction irsi,
|
|
Instruction irsr,
|
|
InstrItinClass iii, InstrItinClass iir,
|
|
InstrItinClass iis> {
|
|
def ri : ARMPseudoExpand<(outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_imm:$imm, pred:$p, cc_out:$s),
|
|
4, iii, [],
|
|
(iri GPR:$Rd, GPR:$Rn, so_imm:$imm, pred:$p, cc_out:$s)>,
|
|
RegConstraint<"$Rn = $Rd">;
|
|
def rr : ARMPseudoExpand<(outs GPR:$Rd),
|
|
(ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
|
|
4, iir, [],
|
|
(irr GPR:$Rd, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
|
|
RegConstraint<"$Rn = $Rd">;
|
|
def rsi : ARMPseudoExpand<(outs GPR:$Rd),
|
|
(ins GPR:$Rn, so_reg_imm:$shift, pred:$p, cc_out:$s),
|
|
4, iis, [],
|
|
(irsi GPR:$Rd, GPR:$Rn, so_reg_imm:$shift, pred:$p, cc_out:$s)>,
|
|
RegConstraint<"$Rn = $Rd">;
|
|
def rsr : ARMPseudoExpand<(outs GPRnopc:$Rd),
|
|
(ins GPRnopc:$Rn, so_reg_reg:$shift, pred:$p, cc_out:$s),
|
|
4, iis, [],
|
|
(irsr GPR:$Rd, GPR:$Rn, so_reg_reg:$shift, pred:$p, cc_out:$s)>,
|
|
RegConstraint<"$Rn = $Rd">;
|
|
}
|
|
|
|
defm ANDCC : AsI1_bincc_irs<ANDri, ANDrr, ANDrsi, ANDrsr,
|
|
IIC_iBITi, IIC_iBITr, IIC_iBITsr>;
|
|
defm ORRCC : AsI1_bincc_irs<ORRri, ORRrr, ORRrsi, ORRrsr,
|
|
IIC_iBITi, IIC_iBITr, IIC_iBITsr>;
|
|
defm EORCC : AsI1_bincc_irs<EORri, EORrr, EORrsi, EORrsr,
|
|
IIC_iBITi, IIC_iBITr, IIC_iBITsr>;
|
|
|
|
} // neverHasSideEffects
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Atomic operations intrinsics
|
|
//
|
|
|
|
def MemBarrierOptOperand : AsmOperandClass {
|
|
let Name = "MemBarrierOpt";
|
|
let ParserMethod = "parseMemBarrierOptOperand";
|
|
}
|
|
def memb_opt : Operand<i32> {
|
|
let PrintMethod = "printMemBOption";
|
|
let ParserMatchClass = MemBarrierOptOperand;
|
|
let DecoderMethod = "DecodeMemBarrierOption";
|
|
}
|
|
|
|
// memory barriers protect the atomic sequences
|
|
let hasSideEffects = 1 in {
|
|
def DMB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
|
|
"dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
|
|
Requires<[IsARM, HasDB]> {
|
|
bits<4> opt;
|
|
let Inst{31-4} = 0xf57ff05;
|
|
let Inst{3-0} = opt;
|
|
}
|
|
}
|
|
|
|
def DSB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
|
|
"dsb", "\t$opt", []>,
|
|
Requires<[IsARM, HasDB]> {
|
|
bits<4> opt;
|
|
let Inst{31-4} = 0xf57ff04;
|
|
let Inst{3-0} = opt;
|
|
}
|
|
|
|
// ISB has only full system option
|
|
def ISB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
|
|
"isb", "\t$opt", []>,
|
|
Requires<[IsARM, HasDB]> {
|
|
bits<4> opt;
|
|
let Inst{31-4} = 0xf57ff06;
|
|
let Inst{3-0} = opt;
|
|
}
|
|
|
|
// Pseudo instruction that combines movs + predicated rsbmi
|
|
// to implement integer ABS
|
|
let usesCustomInserter = 1, Defs = [CPSR] in {
|
|
def ABS : ARMPseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$src),
|
|
8, NoItinerary, []>;
|
|
}
|
|
|
|
let usesCustomInserter = 1 in {
|
|
let Defs = [CPSR] in {
|
|
def ATOMIC_LOAD_ADD_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_add_8 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_SUB_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_sub_8 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_AND_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_and_8 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_OR_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_or_8 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_XOR_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_xor_8 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_NAND_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_nand_8 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_MIN_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_min_8 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_MAX_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_max_8 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_UMIN_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_umin_8 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_UMAX_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_umax_8 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_ADD_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_add_16 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_SUB_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_sub_16 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_AND_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_and_16 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_OR_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_or_16 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_XOR_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_xor_16 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_NAND_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_nand_16 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_MIN_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_min_16 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_MAX_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_max_16 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_UMIN_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_umin_16 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_UMAX_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_umax_16 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_ADD_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_add_32 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_SUB_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_sub_32 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_AND_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_and_32 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_OR_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_or_32 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_XOR_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_xor_32 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_NAND_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_nand_32 GPR:$ptr, GPR:$incr))]>;
|
|
def ATOMIC_LOAD_MIN_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_min_32 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_MAX_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_max_32 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_UMIN_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_umin_32 GPR:$ptr, GPR:$val))]>;
|
|
def ATOMIC_LOAD_UMAX_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$val), NoItinerary,
|
|
[(set GPR:$dst, (atomic_load_umax_32 GPR:$ptr, GPR:$val))]>;
|
|
|
|
def ATOMIC_SWAP_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
|
|
[(set GPR:$dst, (atomic_swap_8 GPR:$ptr, GPR:$new))]>;
|
|
def ATOMIC_SWAP_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
|
|
[(set GPR:$dst, (atomic_swap_16 GPR:$ptr, GPR:$new))]>;
|
|
def ATOMIC_SWAP_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
|
|
[(set GPR:$dst, (atomic_swap_32 GPR:$ptr, GPR:$new))]>;
|
|
|
|
def ATOMIC_CMP_SWAP_I8 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
|
|
[(set GPR:$dst, (atomic_cmp_swap_8 GPR:$ptr, GPR:$old, GPR:$new))]>;
|
|
def ATOMIC_CMP_SWAP_I16 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
|
|
[(set GPR:$dst, (atomic_cmp_swap_16 GPR:$ptr, GPR:$old, GPR:$new))]>;
|
|
def ATOMIC_CMP_SWAP_I32 : PseudoInst<
|
|
(outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
|
|
[(set GPR:$dst, (atomic_cmp_swap_32 GPR:$ptr, GPR:$old, GPR:$new))]>;
|
|
}
|
|
}
|
|
|
|
let mayLoad = 1 in {
|
|
def LDREXB : AIldrex<0b10, (outs GPR:$Rt), (ins addr_offset_none:$addr),
|
|
NoItinerary,
|
|
"ldrexb", "\t$Rt, $addr", []>;
|
|
def LDREXH : AIldrex<0b11, (outs GPR:$Rt), (ins addr_offset_none:$addr),
|
|
NoItinerary, "ldrexh", "\t$Rt, $addr", []>;
|
|
def LDREX : AIldrex<0b00, (outs GPR:$Rt), (ins addr_offset_none:$addr),
|
|
NoItinerary, "ldrex", "\t$Rt, $addr", []>;
|
|
let hasExtraDefRegAllocReq = 1 in
|
|
def LDREXD: AIldrex<0b01, (outs GPR:$Rt, GPR:$Rt2),(ins addr_offset_none:$addr),
|
|
NoItinerary, "ldrexd", "\t$Rt, $Rt2, $addr", []> {
|
|
let DecoderMethod = "DecodeDoubleRegLoad";
|
|
}
|
|
}
|
|
|
|
let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
|
|
def STREXB: AIstrex<0b10, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
|
|
NoItinerary, "strexb", "\t$Rd, $Rt, $addr", []>;
|
|
def STREXH: AIstrex<0b11, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
|
|
NoItinerary, "strexh", "\t$Rd, $Rt, $addr", []>;
|
|
def STREX : AIstrex<0b00, (outs GPR:$Rd), (ins GPR:$Rt, addr_offset_none:$addr),
|
|
NoItinerary, "strex", "\t$Rd, $Rt, $addr", []>;
|
|
let hasExtraSrcRegAllocReq = 1 in
|
|
def STREXD : AIstrex<0b01, (outs GPR:$Rd),
|
|
(ins GPR:$Rt, GPR:$Rt2, addr_offset_none:$addr),
|
|
NoItinerary, "strexd", "\t$Rd, $Rt, $Rt2, $addr", []> {
|
|
let DecoderMethod = "DecodeDoubleRegStore";
|
|
}
|
|
}
|
|
|
|
|
|
def CLREX : AXI<(outs), (ins), MiscFrm, NoItinerary, "clrex", []>,
|
|
Requires<[IsARM, HasV7]> {
|
|
let Inst{31-0} = 0b11110101011111111111000000011111;
|
|
}
|
|
|
|
// SWP/SWPB are deprecated in V6/V7.
|
|
let mayLoad = 1, mayStore = 1 in {
|
|
def SWP : AIswp<0, (outs GPRnopc:$Rt), (ins GPRnopc:$Rt2, addr_offset_none:$addr),
|
|
"swp", []>;
|
|
def SWPB: AIswp<1, (outs GPRnopc:$Rt), (ins GPRnopc:$Rt2, addr_offset_none:$addr),
|
|
"swpb", []>;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Coprocessor Instructions.
|
|
//
|
|
|
|
def CDP : ABI<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
|
|
c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
|
|
NoItinerary, "cdp", "\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
|
|
[(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
|
|
imm:$CRm, imm:$opc2)]> {
|
|
bits<4> opc1;
|
|
bits<4> CRn;
|
|
bits<4> CRd;
|
|
bits<4> cop;
|
|
bits<3> opc2;
|
|
bits<4> CRm;
|
|
|
|
let Inst{3-0} = CRm;
|
|
let Inst{4} = 0;
|
|
let Inst{7-5} = opc2;
|
|
let Inst{11-8} = cop;
|
|
let Inst{15-12} = CRd;
|
|
let Inst{19-16} = CRn;
|
|
let Inst{23-20} = opc1;
|
|
}
|
|
|
|
def CDP2 : ABXI<0b1110, (outs), (ins pf_imm:$cop, imm0_15:$opc1,
|
|
c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
|
|
NoItinerary, "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
|
|
[(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
|
|
imm:$CRm, imm:$opc2)]> {
|
|
let Inst{31-28} = 0b1111;
|
|
bits<4> opc1;
|
|
bits<4> CRn;
|
|
bits<4> CRd;
|
|
bits<4> cop;
|
|
bits<3> opc2;
|
|
bits<4> CRm;
|
|
|
|
let Inst{3-0} = CRm;
|
|
let Inst{4} = 0;
|
|
let Inst{7-5} = opc2;
|
|
let Inst{11-8} = cop;
|
|
let Inst{15-12} = CRd;
|
|
let Inst{19-16} = CRn;
|
|
let Inst{23-20} = opc1;
|
|
}
|
|
|
|
class ACI<dag oops, dag iops, string opc, string asm,
|
|
IndexMode im = IndexModeNone>
|
|
: I<oops, iops, AddrModeNone, 4, im, BrFrm, NoItinerary,
|
|
opc, asm, "", []> {
|
|
let Inst{27-25} = 0b110;
|
|
}
|
|
class ACInoP<dag oops, dag iops, string opc, string asm,
|
|
IndexMode im = IndexModeNone>
|
|
: InoP<oops, iops, AddrModeNone, 4, im, BrFrm, NoItinerary,
|
|
opc, asm, "", []> {
|
|
let Inst{31-28} = 0b1111;
|
|
let Inst{27-25} = 0b110;
|
|
}
|
|
multiclass LdStCop<bit load, bit Dbit, string asm> {
|
|
def _OFFSET : ACI<(outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
|
|
asm, "\t$cop, $CRd, $addr"> {
|
|
bits<13> addr;
|
|
bits<4> cop;
|
|
bits<4> CRd;
|
|
let Inst{24} = 1; // P = 1
|
|
let Inst{23} = addr{8};
|
|
let Inst{22} = Dbit;
|
|
let Inst{21} = 0; // W = 0
|
|
let Inst{20} = load;
|
|
let Inst{19-16} = addr{12-9};
|
|
let Inst{15-12} = CRd;
|
|
let Inst{11-8} = cop;
|
|
let Inst{7-0} = addr{7-0};
|
|
let DecoderMethod = "DecodeCopMemInstruction";
|
|
}
|
|
def _PRE : ACI<(outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
|
|
asm, "\t$cop, $CRd, $addr!", IndexModePre> {
|
|
bits<13> addr;
|
|
bits<4> cop;
|
|
bits<4> CRd;
|
|
let Inst{24} = 1; // P = 1
|
|
let Inst{23} = addr{8};
|
|
let Inst{22} = Dbit;
|
|
let Inst{21} = 1; // W = 1
|
|
let Inst{20} = load;
|
|
let Inst{19-16} = addr{12-9};
|
|
let Inst{15-12} = CRd;
|
|
let Inst{11-8} = cop;
|
|
let Inst{7-0} = addr{7-0};
|
|
let DecoderMethod = "DecodeCopMemInstruction";
|
|
}
|
|
def _POST: ACI<(outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
|
|
postidx_imm8s4:$offset),
|
|
asm, "\t$cop, $CRd, $addr, $offset", IndexModePost> {
|
|
bits<9> offset;
|
|
bits<4> addr;
|
|
bits<4> cop;
|
|
bits<4> CRd;
|
|
let Inst{24} = 0; // P = 0
|
|
let Inst{23} = offset{8};
|
|
let Inst{22} = Dbit;
|
|
let Inst{21} = 1; // W = 1
|
|
let Inst{20} = load;
|
|
let Inst{19-16} = addr;
|
|
let Inst{15-12} = CRd;
|
|
let Inst{11-8} = cop;
|
|
let Inst{7-0} = offset{7-0};
|
|
let DecoderMethod = "DecodeCopMemInstruction";
|
|
}
|
|
def _OPTION : ACI<(outs),
|
|
(ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
|
|
coproc_option_imm:$option),
|
|
asm, "\t$cop, $CRd, $addr, $option"> {
|
|
bits<8> option;
|
|
bits<4> addr;
|
|
bits<4> cop;
|
|
bits<4> CRd;
|
|
let Inst{24} = 0; // P = 0
|
|
let Inst{23} = 1; // U = 1
|
|
let Inst{22} = Dbit;
|
|
let Inst{21} = 0; // W = 0
|
|
let Inst{20} = load;
|
|
let Inst{19-16} = addr;
|
|
let Inst{15-12} = CRd;
|
|
let Inst{11-8} = cop;
|
|
let Inst{7-0} = option;
|
|
let DecoderMethod = "DecodeCopMemInstruction";
|
|
}
|
|
}
|
|
multiclass LdSt2Cop<bit load, bit Dbit, string asm> {
|
|
def _OFFSET : ACInoP<(outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
|
|
asm, "\t$cop, $CRd, $addr"> {
|
|
bits<13> addr;
|
|
bits<4> cop;
|
|
bits<4> CRd;
|
|
let Inst{24} = 1; // P = 1
|
|
let Inst{23} = addr{8};
|
|
let Inst{22} = Dbit;
|
|
let Inst{21} = 0; // W = 0
|
|
let Inst{20} = load;
|
|
let Inst{19-16} = addr{12-9};
|
|
let Inst{15-12} = CRd;
|
|
let Inst{11-8} = cop;
|
|
let Inst{7-0} = addr{7-0};
|
|
let DecoderMethod = "DecodeCopMemInstruction";
|
|
}
|
|
def _PRE : ACInoP<(outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
|
|
asm, "\t$cop, $CRd, $addr!", IndexModePre> {
|
|
bits<13> addr;
|
|
bits<4> cop;
|
|
bits<4> CRd;
|
|
let Inst{24} = 1; // P = 1
|
|
let Inst{23} = addr{8};
|
|
let Inst{22} = Dbit;
|
|
let Inst{21} = 1; // W = 1
|
|
let Inst{20} = load;
|
|
let Inst{19-16} = addr{12-9};
|
|
let Inst{15-12} = CRd;
|
|
let Inst{11-8} = cop;
|
|
let Inst{7-0} = addr{7-0};
|
|
let DecoderMethod = "DecodeCopMemInstruction";
|
|
}
|
|
def _POST: ACInoP<(outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
|
|
postidx_imm8s4:$offset),
|
|
asm, "\t$cop, $CRd, $addr, $offset", IndexModePost> {
|
|
bits<9> offset;
|
|
bits<4> addr;
|
|
bits<4> cop;
|
|
bits<4> CRd;
|
|
let Inst{24} = 0; // P = 0
|
|
let Inst{23} = offset{8};
|
|
let Inst{22} = Dbit;
|
|
let Inst{21} = 1; // W = 1
|
|
let Inst{20} = load;
|
|
let Inst{19-16} = addr;
|
|
let Inst{15-12} = CRd;
|
|
let Inst{11-8} = cop;
|
|
let Inst{7-0} = offset{7-0};
|
|
let DecoderMethod = "DecodeCopMemInstruction";
|
|
}
|
|
def _OPTION : ACInoP<(outs),
|
|
(ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
|
|
coproc_option_imm:$option),
|
|
asm, "\t$cop, $CRd, $addr, $option"> {
|
|
bits<8> option;
|
|
bits<4> addr;
|
|
bits<4> cop;
|
|
bits<4> CRd;
|
|
let Inst{24} = 0; // P = 0
|
|
let Inst{23} = 1; // U = 1
|
|
let Inst{22} = Dbit;
|
|
let Inst{21} = 0; // W = 0
|
|
let Inst{20} = load;
|
|
let Inst{19-16} = addr;
|
|
let Inst{15-12} = CRd;
|
|
let Inst{11-8} = cop;
|
|
let Inst{7-0} = option;
|
|
let DecoderMethod = "DecodeCopMemInstruction";
|
|
}
|
|
}
|
|
|
|
defm LDC : LdStCop <1, 0, "ldc">;
|
|
defm LDCL : LdStCop <1, 1, "ldcl">;
|
|
defm STC : LdStCop <0, 0, "stc">;
|
|
defm STCL : LdStCop <0, 1, "stcl">;
|
|
defm LDC2 : LdSt2Cop<1, 0, "ldc2">;
|
|
defm LDC2L : LdSt2Cop<1, 1, "ldc2l">;
|
|
defm STC2 : LdSt2Cop<0, 0, "stc2">;
|
|
defm STC2L : LdSt2Cop<0, 1, "stc2l">;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Move between coprocessor and ARM core register.
|
|
//
|
|
|
|
class MovRCopro<string opc, bit direction, dag oops, dag iops,
|
|
list<dag> pattern>
|
|
: ABI<0b1110, oops, iops, NoItinerary, opc,
|
|
"\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2", pattern> {
|
|
let Inst{20} = direction;
|
|
let Inst{4} = 1;
|
|
|
|
bits<4> Rt;
|
|
bits<4> cop;
|
|
bits<3> opc1;
|
|
bits<3> opc2;
|
|
bits<4> CRm;
|
|
bits<4> CRn;
|
|
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-8} = cop;
|
|
let Inst{23-21} = opc1;
|
|
let Inst{7-5} = opc2;
|
|
let Inst{3-0} = CRm;
|
|
let Inst{19-16} = CRn;
|
|
}
|
|
|
|
def MCR : MovRCopro<"mcr", 0 /* from ARM core register to coprocessor */,
|
|
(outs),
|
|
(ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
|
|
c_imm:$CRm, imm0_7:$opc2),
|
|
[(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
|
|
imm:$CRm, imm:$opc2)]>;
|
|
def : ARMInstAlias<"mcr${p} $cop, $opc1, $Rt, $CRn, $CRm",
|
|
(MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
|
|
c_imm:$CRm, 0, pred:$p)>;
|
|
def MRC : MovRCopro<"mrc", 1 /* from coprocessor to ARM core register */,
|
|
(outs GPR:$Rt),
|
|
(ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, c_imm:$CRm,
|
|
imm0_7:$opc2), []>;
|
|
def : ARMInstAlias<"mrc${p} $cop, $opc1, $Rt, $CRn, $CRm",
|
|
(MRC GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
|
|
c_imm:$CRm, 0, pred:$p)>;
|
|
|
|
def : ARMPat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
|
|
(MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
|
|
|
|
class MovRCopro2<string opc, bit direction, dag oops, dag iops,
|
|
list<dag> pattern>
|
|
: ABXI<0b1110, oops, iops, NoItinerary,
|
|
!strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"), pattern> {
|
|
let Inst{31-28} = 0b1111;
|
|
let Inst{20} = direction;
|
|
let Inst{4} = 1;
|
|
|
|
bits<4> Rt;
|
|
bits<4> cop;
|
|
bits<3> opc1;
|
|
bits<3> opc2;
|
|
bits<4> CRm;
|
|
bits<4> CRn;
|
|
|
|
let Inst{15-12} = Rt;
|
|
let Inst{11-8} = cop;
|
|
let Inst{23-21} = opc1;
|
|
let Inst{7-5} = opc2;
|
|
let Inst{3-0} = CRm;
|
|
let Inst{19-16} = CRn;
|
|
}
|
|
|
|
def MCR2 : MovRCopro2<"mcr2", 0 /* from ARM core register to coprocessor */,
|
|
(outs),
|
|
(ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
|
|
c_imm:$CRm, imm0_7:$opc2),
|
|
[(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
|
|
imm:$CRm, imm:$opc2)]>;
|
|
def : ARMInstAlias<"mcr2$ $cop, $opc1, $Rt, $CRn, $CRm",
|
|
(MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
|
|
c_imm:$CRm, 0)>;
|
|
def MRC2 : MovRCopro2<"mrc2", 1 /* from coprocessor to ARM core register */,
|
|
(outs GPR:$Rt),
|
|
(ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, c_imm:$CRm,
|
|
imm0_7:$opc2), []>;
|
|
def : ARMInstAlias<"mrc2$ $cop, $opc1, $Rt, $CRn, $CRm",
|
|
(MRC2 GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
|
|
c_imm:$CRm, 0)>;
|
|
|
|
def : ARMV5TPat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn,
|
|
imm:$CRm, imm:$opc2),
|
|
(MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
|
|
|
|
class MovRRCopro<string opc, bit direction, list<dag> pattern = []>
|
|
: ABI<0b1100, (outs), (ins p_imm:$cop, imm0_15:$opc1,
|
|
GPRnopc:$Rt, GPRnopc:$Rt2, c_imm:$CRm),
|
|
NoItinerary, opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm", pattern> {
|
|
let Inst{23-21} = 0b010;
|
|
let Inst{20} = direction;
|
|
|
|
bits<4> Rt;
|
|
bits<4> Rt2;
|
|
bits<4> cop;
|
|
bits<4> opc1;
|
|
bits<4> CRm;
|
|
|
|
let Inst{15-12} = Rt;
|
|
let Inst{19-16} = Rt2;
|
|
let Inst{11-8} = cop;
|
|
let Inst{7-4} = opc1;
|
|
let Inst{3-0} = CRm;
|
|
}
|
|
|
|
def MCRR : MovRRCopro<"mcrr", 0 /* from ARM core register to coprocessor */,
|
|
[(int_arm_mcrr imm:$cop, imm:$opc1, GPRnopc:$Rt, GPRnopc:$Rt2,
|
|
imm:$CRm)]>;
|
|
def MRRC : MovRRCopro<"mrrc", 1 /* from coprocessor to ARM core register */>;
|
|
|
|
class MovRRCopro2<string opc, bit direction, list<dag> pattern = []>
|
|
: ABXI<0b1100, (outs), (ins p_imm:$cop, imm0_15:$opc1,
|
|
GPRnopc:$Rt, GPRnopc:$Rt2, c_imm:$CRm), NoItinerary,
|
|
!strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
|
|
let Inst{31-28} = 0b1111;
|
|
let Inst{23-21} = 0b010;
|
|
let Inst{20} = direction;
|
|
|
|
bits<4> Rt;
|
|
bits<4> Rt2;
|
|
bits<4> cop;
|
|
bits<4> opc1;
|
|
bits<4> CRm;
|
|
|
|
let Inst{15-12} = Rt;
|
|
let Inst{19-16} = Rt2;
|
|
let Inst{11-8} = cop;
|
|
let Inst{7-4} = opc1;
|
|
let Inst{3-0} = CRm;
|
|
|
|
let DecoderMethod = "DecodeMRRC2";
|
|
}
|
|
|
|
def MCRR2 : MovRRCopro2<"mcrr2", 0 /* from ARM core register to coprocessor */,
|
|
[(int_arm_mcrr2 imm:$cop, imm:$opc1, GPRnopc:$Rt, GPRnopc:$Rt2,
|
|
imm:$CRm)]>;
|
|
def MRRC2 : MovRRCopro2<"mrrc2", 1 /* from coprocessor to ARM core register */>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Move between special register and ARM core register
|
|
//
|
|
|
|
// Move to ARM core register from Special Register
|
|
def MRS : ABI<0b0001, (outs GPRnopc:$Rd), (ins), NoItinerary,
|
|
"mrs", "\t$Rd, apsr", []> {
|
|
bits<4> Rd;
|
|
let Inst{23-16} = 0b00001111;
|
|
let Unpredictable{19-17} = 0b111;
|
|
|
|
let Inst{15-12} = Rd;
|
|
|
|
let Inst{11-0} = 0b000000000000;
|
|
let Unpredictable{11-0} = 0b110100001111;
|
|
}
|
|
|
|
def : InstAlias<"mrs${p} $Rd, cpsr", (MRS GPRnopc:$Rd, pred:$p)>, Requires<[IsARM]>;
|
|
|
|
// The MRSsys instruction is the MRS instruction from the ARM ARM,
|
|
// section B9.3.9, with the R bit set to 1.
|
|
def MRSsys : ABI<0b0001, (outs GPRnopc:$Rd), (ins), NoItinerary,
|
|
"mrs", "\t$Rd, spsr", []> {
|
|
bits<4> Rd;
|
|
let Inst{23-16} = 0b01001111;
|
|
let Unpredictable{19-16} = 0b1111;
|
|
|
|
let Inst{15-12} = Rd;
|
|
|
|
let Inst{11-0} = 0b000000000000;
|
|
let Unpredictable{11-0} = 0b110100001111;
|
|
}
|
|
|
|
// Move from ARM core register to Special Register
|
|
//
|
|
// No need to have both system and application versions, the encodings are the
|
|
// same and the assembly parser has no way to distinguish between them. The mask
|
|
// operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
|
|
// the mask with the fields to be accessed in the special register.
|
|
def MSR : ABI<0b0001, (outs), (ins msr_mask:$mask, GPR:$Rn), NoItinerary,
|
|
"msr", "\t$mask, $Rn", []> {
|
|
bits<5> mask;
|
|
bits<4> Rn;
|
|
|
|
let Inst{23} = 0;
|
|
let Inst{22} = mask{4}; // R bit
|
|
let Inst{21-20} = 0b10;
|
|
let Inst{19-16} = mask{3-0};
|
|
let Inst{15-12} = 0b1111;
|
|
let Inst{11-4} = 0b00000000;
|
|
let Inst{3-0} = Rn;
|
|
}
|
|
|
|
def MSRi : ABI<0b0011, (outs), (ins msr_mask:$mask, so_imm:$a), NoItinerary,
|
|
"msr", "\t$mask, $a", []> {
|
|
bits<5> mask;
|
|
bits<12> a;
|
|
|
|
let Inst{23} = 0;
|
|
let Inst{22} = mask{4}; // R bit
|
|
let Inst{21-20} = 0b10;
|
|
let Inst{19-16} = mask{3-0};
|
|
let Inst{15-12} = 0b1111;
|
|
let Inst{11-0} = a;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// TLS Instructions
|
|
//
|
|
|
|
// __aeabi_read_tp preserves the registers r1-r3.
|
|
// This is a pseudo inst so that we can get the encoding right,
|
|
// complete with fixup for the aeabi_read_tp function.
|
|
let isCall = 1,
|
|
Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
|
|
def TPsoft : PseudoInst<(outs), (ins), IIC_Br,
|
|
[(set R0, ARMthread_pointer)]>;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// SJLJ Exception handling intrinsics
|
|
// eh_sjlj_setjmp() is an instruction sequence to store the return
|
|
// address and save #0 in R0 for the non-longjmp case.
|
|
// Since by its nature we may be coming from some other function to get
|
|
// here, and we're using the stack frame for the containing function to
|
|
// save/restore registers, we can't keep anything live in regs across
|
|
// the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
|
|
// when we get here from a longjmp(). We force everything out of registers
|
|
// except for our own input by listing the relevant registers in Defs. By
|
|
// doing so, we also cause the prologue/epilogue code to actively preserve
|
|
// all of the callee-saved resgisters, which is exactly what we want.
|
|
// A constant value is passed in $val, and we use the location as a scratch.
|
|
//
|
|
// These are pseudo-instructions and are lowered to individual MC-insts, so
|
|
// no encoding information is necessary.
|
|
let Defs =
|
|
[ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
|
|
Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15 ],
|
|
hasSideEffects = 1, isBarrier = 1, usesCustomInserter = 1 in {
|
|
def Int_eh_sjlj_setjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
|
|
NoItinerary,
|
|
[(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
|
|
Requires<[IsARM, HasVFP2]>;
|
|
}
|
|
|
|
let Defs =
|
|
[ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
|
|
hasSideEffects = 1, isBarrier = 1, usesCustomInserter = 1 in {
|
|
def Int_eh_sjlj_setjmp_nofp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
|
|
NoItinerary,
|
|
[(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
|
|
Requires<[IsARM, NoVFP]>;
|
|
}
|
|
|
|
// FIXME: Non-IOS version(s)
|
|
let isBarrier = 1, hasSideEffects = 1, isTerminator = 1,
|
|
Defs = [ R7, LR, SP ] in {
|
|
def Int_eh_sjlj_longjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$scratch),
|
|
NoItinerary,
|
|
[(ARMeh_sjlj_longjmp GPR:$src, GPR:$scratch)]>,
|
|
Requires<[IsARM, IsIOS]>;
|
|
}
|
|
|
|
// eh.sjlj.dispatchsetup pseudo-instructions.
|
|
// These pseudos are used for both ARM and Thumb2. Any differences are
|
|
// handled when the pseudo is expanded (which happens before any passes
|
|
// that need the instruction size).
|
|
let Defs =
|
|
[ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
|
|
Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15 ],
|
|
isBarrier = 1 in
|
|
def Int_eh_sjlj_dispatchsetup : PseudoInst<(outs), (ins), NoItinerary, []>;
|
|
|
|
let Defs =
|
|
[ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
|
|
isBarrier = 1 in
|
|
def Int_eh_sjlj_dispatchsetup_nofp : PseudoInst<(outs), (ins), NoItinerary, []>;
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Non-Instruction Patterns
|
|
//
|
|
|
|
// ARMv4 indirect branch using (MOVr PC, dst)
|
|
let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in
|
|
def MOVPCRX : ARMPseudoExpand<(outs), (ins GPR:$dst),
|
|
4, IIC_Br, [(brind GPR:$dst)],
|
|
(MOVr PC, GPR:$dst, (ops 14, zero_reg), zero_reg)>,
|
|
Requires<[IsARM, NoV4T]>;
|
|
|
|
// Large immediate handling.
|
|
|
|
// 32-bit immediate using two piece so_imms or movw + movt.
|
|
// This is a single pseudo instruction, the benefit is that it can be remat'd
|
|
// as a single unit instead of having to handle reg inputs.
|
|
// FIXME: Remove this when we can do generalized remat.
|
|
let isReMaterializable = 1, isMoveImm = 1 in
|
|
def MOVi32imm : PseudoInst<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
|
|
[(set GPR:$dst, (arm_i32imm:$src))]>,
|
|
Requires<[IsARM]>;
|
|
|
|
// Pseudo instruction that combines movw + movt + add pc (if PIC).
|
|
// It also makes it possible to rematerialize the instructions.
|
|
// FIXME: Remove this when we can do generalized remat and when machine licm
|
|
// can properly the instructions.
|
|
let isReMaterializable = 1 in {
|
|
def MOV_ga_pcrel : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
|
|
IIC_iMOVix2addpc,
|
|
[(set GPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
|
|
Requires<[IsARM, UseMovt]>;
|
|
|
|
def MOV_ga_dyn : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
|
|
IIC_iMOVix2,
|
|
[(set GPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
|
|
Requires<[IsARM, UseMovt]>;
|
|
|
|
let AddedComplexity = 10 in
|
|
def MOV_ga_pcrel_ldr : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
|
|
IIC_iMOVix2ld,
|
|
[(set GPR:$dst, (load (ARMWrapperPIC tglobaladdr:$addr)))]>,
|
|
Requires<[IsARM, UseMovt]>;
|
|
} // isReMaterializable
|
|
|
|
// ConstantPool, GlobalAddress, and JumpTable
|
|
def : ARMPat<(ARMWrapper tglobaladdr :$dst), (LEApcrel tglobaladdr :$dst)>,
|
|
Requires<[IsARM, DontUseMovt]>;
|
|
def : ARMPat<(ARMWrapper tconstpool :$dst), (LEApcrel tconstpool :$dst)>;
|
|
def : ARMPat<(ARMWrapper tglobaladdr :$dst), (MOVi32imm tglobaladdr :$dst)>,
|
|
Requires<[IsARM, UseMovt]>;
|
|
def : ARMPat<(ARMWrapperJT tjumptable:$dst, imm:$id),
|
|
(LEApcrelJT tjumptable:$dst, imm:$id)>;
|
|
|
|
// TODO: add,sub,and, 3-instr forms?
|
|
|
|
// Tail calls. These patterns also apply to Thumb mode.
|
|
def : Pat<(ARMtcret tcGPR:$dst), (TCRETURNri tcGPR:$dst)>;
|
|
def : Pat<(ARMtcret (i32 tglobaladdr:$dst)), (TCRETURNdi texternalsym:$dst)>;
|
|
def : Pat<(ARMtcret (i32 texternalsym:$dst)), (TCRETURNdi texternalsym:$dst)>;
|
|
|
|
// Direct calls
|
|
def : ARMPat<(ARMcall texternalsym:$func), (BL texternalsym:$func)>;
|
|
def : ARMPat<(ARMcall_nolink texternalsym:$func),
|
|
(BMOVPCB_CALL texternalsym:$func)>;
|
|
|
|
// zextload i1 -> zextload i8
|
|
def : ARMPat<(zextloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
|
|
def : ARMPat<(zextloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
|
|
|
|
// extload -> zextload
|
|
def : ARMPat<(extloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
|
|
def : ARMPat<(extloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
|
|
def : ARMPat<(extloadi8 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
|
|
def : ARMPat<(extloadi8 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
|
|
|
|
def : ARMPat<(extloadi16 addrmode3:$addr), (LDRH addrmode3:$addr)>;
|
|
|
|
def : ARMPat<(extloadi8 addrmodepc:$addr), (PICLDRB addrmodepc:$addr)>;
|
|
def : ARMPat<(extloadi16 addrmodepc:$addr), (PICLDRH addrmodepc:$addr)>;
|
|
|
|
// smul* and smla*
|
|
def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
|
|
(sra (shl GPR:$b, (i32 16)), (i32 16))),
|
|
(SMULBB GPR:$a, GPR:$b)>;
|
|
def : ARMV5TEPat<(mul sext_16_node:$a, sext_16_node:$b),
|
|
(SMULBB GPR:$a, GPR:$b)>;
|
|
def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
|
|
(sra GPR:$b, (i32 16))),
|
|
(SMULBT GPR:$a, GPR:$b)>;
|
|
def : ARMV5TEPat<(mul sext_16_node:$a, (sra GPR:$b, (i32 16))),
|
|
(SMULBT GPR:$a, GPR:$b)>;
|
|
def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)),
|
|
(sra (shl GPR:$b, (i32 16)), (i32 16))),
|
|
(SMULTB GPR:$a, GPR:$b)>;
|
|
def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)), sext_16_node:$b),
|
|
(SMULTB GPR:$a, GPR:$b)>;
|
|
def : ARMV5TEPat<(sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
|
|
(i32 16)),
|
|
(SMULWB GPR:$a, GPR:$b)>;
|
|
def : ARMV5TEPat<(sra (mul GPR:$a, sext_16_node:$b), (i32 16)),
|
|
(SMULWB GPR:$a, GPR:$b)>;
|
|
|
|
def : ARMV5TEPat<(add GPR:$acc,
|
|
(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
|
|
(sra (shl GPR:$b, (i32 16)), (i32 16)))),
|
|
(SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
|
|
def : ARMV5TEPat<(add GPR:$acc,
|
|
(mul sext_16_node:$a, sext_16_node:$b)),
|
|
(SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
|
|
def : ARMV5TEPat<(add GPR:$acc,
|
|
(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
|
|
(sra GPR:$b, (i32 16)))),
|
|
(SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
|
|
def : ARMV5TEPat<(add GPR:$acc,
|
|
(mul sext_16_node:$a, (sra GPR:$b, (i32 16)))),
|
|
(SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
|
|
def : ARMV5TEPat<(add GPR:$acc,
|
|
(mul (sra GPR:$a, (i32 16)),
|
|
(sra (shl GPR:$b, (i32 16)), (i32 16)))),
|
|
(SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
|
|
def : ARMV5TEPat<(add GPR:$acc,
|
|
(mul (sra GPR:$a, (i32 16)), sext_16_node:$b)),
|
|
(SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
|
|
def : ARMV5TEPat<(add GPR:$acc,
|
|
(sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
|
|
(i32 16))),
|
|
(SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
|
|
def : ARMV5TEPat<(add GPR:$acc,
|
|
(sra (mul GPR:$a, sext_16_node:$b), (i32 16))),
|
|
(SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
|
|
|
|
|
|
// Pre-v7 uses MCR for synchronization barriers.
|
|
def : ARMPat<(ARMMemBarrierMCR GPR:$zero), (MCR 15, 0, GPR:$zero, 7, 10, 5)>,
|
|
Requires<[IsARM, HasV6]>;
|
|
|
|
// SXT/UXT with no rotate
|
|
let AddedComplexity = 16 in {
|
|
def : ARMV6Pat<(and GPR:$Src, 0x000000FF), (UXTB GPR:$Src, 0)>;
|
|
def : ARMV6Pat<(and GPR:$Src, 0x0000FFFF), (UXTH GPR:$Src, 0)>;
|
|
def : ARMV6Pat<(and GPR:$Src, 0x00FF00FF), (UXTB16 GPR:$Src, 0)>;
|
|
def : ARMV6Pat<(add GPR:$Rn, (and GPR:$Rm, 0x00FF)),
|
|
(UXTAB GPR:$Rn, GPR:$Rm, 0)>;
|
|
def : ARMV6Pat<(add GPR:$Rn, (and GPR:$Rm, 0xFFFF)),
|
|
(UXTAH GPR:$Rn, GPR:$Rm, 0)>;
|
|
}
|
|
|
|
def : ARMV6Pat<(sext_inreg GPR:$Src, i8), (SXTB GPR:$Src, 0)>;
|
|
def : ARMV6Pat<(sext_inreg GPR:$Src, i16), (SXTH GPR:$Src, 0)>;
|
|
|
|
def : ARMV6Pat<(add GPR:$Rn, (sext_inreg GPRnopc:$Rm, i8)),
|
|
(SXTAB GPR:$Rn, GPRnopc:$Rm, 0)>;
|
|
def : ARMV6Pat<(add GPR:$Rn, (sext_inreg GPRnopc:$Rm, i16)),
|
|
(SXTAH GPR:$Rn, GPRnopc:$Rm, 0)>;
|
|
|
|
// Atomic load/store patterns
|
|
def : ARMPat<(atomic_load_8 ldst_so_reg:$src),
|
|
(LDRBrs ldst_so_reg:$src)>;
|
|
def : ARMPat<(atomic_load_8 addrmode_imm12:$src),
|
|
(LDRBi12 addrmode_imm12:$src)>;
|
|
def : ARMPat<(atomic_load_16 addrmode3:$src),
|
|
(LDRH addrmode3:$src)>;
|
|
def : ARMPat<(atomic_load_32 ldst_so_reg:$src),
|
|
(LDRrs ldst_so_reg:$src)>;
|
|
def : ARMPat<(atomic_load_32 addrmode_imm12:$src),
|
|
(LDRi12 addrmode_imm12:$src)>;
|
|
def : ARMPat<(atomic_store_8 ldst_so_reg:$ptr, GPR:$val),
|
|
(STRBrs GPR:$val, ldst_so_reg:$ptr)>;
|
|
def : ARMPat<(atomic_store_8 addrmode_imm12:$ptr, GPR:$val),
|
|
(STRBi12 GPR:$val, addrmode_imm12:$ptr)>;
|
|
def : ARMPat<(atomic_store_16 addrmode3:$ptr, GPR:$val),
|
|
(STRH GPR:$val, addrmode3:$ptr)>;
|
|
def : ARMPat<(atomic_store_32 ldst_so_reg:$ptr, GPR:$val),
|
|
(STRrs GPR:$val, ldst_so_reg:$ptr)>;
|
|
def : ARMPat<(atomic_store_32 addrmode_imm12:$ptr, GPR:$val),
|
|
(STRi12 GPR:$val, addrmode_imm12:$ptr)>;
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Thumb Support
|
|
//
|
|
|
|
include "ARMInstrThumb.td"
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Thumb2 Support
|
|
//
|
|
|
|
include "ARMInstrThumb2.td"
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Floating Point Support
|
|
//
|
|
|
|
include "ARMInstrVFP.td"
|
|
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//===----------------------------------------------------------------------===//
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// Advanced SIMD (NEON) Support
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//
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include "ARMInstrNEON.td"
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//===----------------------------------------------------------------------===//
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// Assembler aliases
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//
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// Memory barriers
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def : InstAlias<"dmb", (DMB 0xf)>, Requires<[IsARM, HasDB]>;
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def : InstAlias<"dsb", (DSB 0xf)>, Requires<[IsARM, HasDB]>;
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def : InstAlias<"isb", (ISB 0xf)>, Requires<[IsARM, HasDB]>;
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// System instructions
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def : MnemonicAlias<"swi", "svc">;
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// Load / Store Multiple
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def : MnemonicAlias<"ldmfd", "ldm">;
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def : MnemonicAlias<"ldmia", "ldm">;
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def : MnemonicAlias<"ldmea", "ldmdb">;
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def : MnemonicAlias<"stmfd", "stmdb">;
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def : MnemonicAlias<"stmia", "stm">;
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def : MnemonicAlias<"stmea", "stm">;
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// PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
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// shift amount is zero (i.e., unspecified).
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def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
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(PKHBT GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, 0, pred:$p)>,
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Requires<[IsARM, HasV6]>;
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def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
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(PKHBT GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, 0, pred:$p)>,
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Requires<[IsARM, HasV6]>;
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// PUSH/POP aliases for STM/LDM
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def : ARMInstAlias<"push${p} $regs", (STMDB_UPD SP, pred:$p, reglist:$regs)>;
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def : ARMInstAlias<"pop${p} $regs", (LDMIA_UPD SP, pred:$p, reglist:$regs)>;
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// SSAT/USAT optional shift operand.
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def : ARMInstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
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(SSAT GPRnopc:$Rd, imm1_32:$sat_imm, GPRnopc:$Rn, 0, pred:$p)>;
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def : ARMInstAlias<"usat${p} $Rd, $sat_imm, $Rn",
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(USAT GPRnopc:$Rd, imm0_31:$sat_imm, GPRnopc:$Rn, 0, pred:$p)>;
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// Extend instruction optional rotate operand.
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def : ARMInstAlias<"sxtab${p} $Rd, $Rn, $Rm",
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(SXTAB GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"sxtah${p} $Rd, $Rn, $Rm",
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(SXTAH GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
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(SXTAB16 GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"sxtb${p} $Rd, $Rm",
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(SXTB GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"sxtb16${p} $Rd, $Rm",
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(SXTB16 GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"sxth${p} $Rd, $Rm",
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(SXTH GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"uxtab${p} $Rd, $Rn, $Rm",
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(UXTAB GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"uxtah${p} $Rd, $Rn, $Rm",
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(UXTAH GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
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(UXTAB16 GPRnopc:$Rd, GPR:$Rn, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"uxtb${p} $Rd, $Rm",
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(UXTB GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"uxtb16${p} $Rd, $Rm",
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(UXTB16 GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
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def : ARMInstAlias<"uxth${p} $Rd, $Rm",
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(UXTH GPRnopc:$Rd, GPRnopc:$Rm, 0, pred:$p)>;
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// RFE aliases
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def : MnemonicAlias<"rfefa", "rfeda">;
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def : MnemonicAlias<"rfeea", "rfedb">;
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def : MnemonicAlias<"rfefd", "rfeia">;
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def : MnemonicAlias<"rfeed", "rfeib">;
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def : MnemonicAlias<"rfe", "rfeia">;
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// SRS aliases
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def : MnemonicAlias<"srsfa", "srsda">;
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def : MnemonicAlias<"srsea", "srsdb">;
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def : MnemonicAlias<"srsfd", "srsia">;
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def : MnemonicAlias<"srsed", "srsib">;
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def : MnemonicAlias<"srs", "srsia">;
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// QSAX == QSUBADDX
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def : MnemonicAlias<"qsubaddx", "qsax">;
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// SASX == SADDSUBX
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def : MnemonicAlias<"saddsubx", "sasx">;
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// SHASX == SHADDSUBX
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def : MnemonicAlias<"shaddsubx", "shasx">;
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// SHSAX == SHSUBADDX
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def : MnemonicAlias<"shsubaddx", "shsax">;
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// SSAX == SSUBADDX
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def : MnemonicAlias<"ssubaddx", "ssax">;
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// UASX == UADDSUBX
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def : MnemonicAlias<"uaddsubx", "uasx">;
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// UHASX == UHADDSUBX
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def : MnemonicAlias<"uhaddsubx", "uhasx">;
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// UHSAX == UHSUBADDX
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def : MnemonicAlias<"uhsubaddx", "uhsax">;
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// UQASX == UQADDSUBX
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def : MnemonicAlias<"uqaddsubx", "uqasx">;
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// UQSAX == UQSUBADDX
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def : MnemonicAlias<"uqsubaddx", "uqsax">;
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// USAX == USUBADDX
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def : MnemonicAlias<"usubaddx", "usax">;
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// "mov Rd, so_imm_not" can be handled via "mvn" in assembly, just like
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// for isel.
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def : ARMInstAlias<"mov${s}${p} $Rd, $imm",
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(MVNi rGPR:$Rd, so_imm_not:$imm, pred:$p, cc_out:$s)>;
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def : ARMInstAlias<"mvn${s}${p} $Rd, $imm",
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(MOVi rGPR:$Rd, so_imm_not:$imm, pred:$p, cc_out:$s)>;
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// Same for AND <--> BIC
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def : ARMInstAlias<"bic${s}${p} $Rd, $Rn, $imm",
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(ANDri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
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pred:$p, cc_out:$s)>;
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def : ARMInstAlias<"bic${s}${p} $Rdn, $imm",
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(ANDri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
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pred:$p, cc_out:$s)>;
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def : ARMInstAlias<"and${s}${p} $Rd, $Rn, $imm",
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(BICri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
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pred:$p, cc_out:$s)>;
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def : ARMInstAlias<"and${s}${p} $Rdn, $imm",
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(BICri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
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pred:$p, cc_out:$s)>;
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// Likewise, "add Rd, so_imm_neg" -> sub
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def : ARMInstAlias<"add${s}${p} $Rd, $Rn, $imm",
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(SUBri GPR:$Rd, GPR:$Rn, so_imm_neg:$imm, pred:$p, cc_out:$s)>;
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def : ARMInstAlias<"add${s}${p} $Rd, $imm",
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(SUBri GPR:$Rd, GPR:$Rd, so_imm_neg:$imm, pred:$p, cc_out:$s)>;
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// Same for CMP <--> CMN via so_imm_neg
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def : ARMInstAlias<"cmp${p} $Rd, $imm",
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(CMNzri rGPR:$Rd, so_imm_neg:$imm, pred:$p)>;
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def : ARMInstAlias<"cmn${p} $Rd, $imm",
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(CMPri rGPR:$Rd, so_imm_neg:$imm, pred:$p)>;
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// The shifter forms of the MOV instruction are aliased to the ASR, LSL,
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// LSR, ROR, and RRX instructions.
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// FIXME: We need C++ parser hooks to map the alias to the MOV
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// encoding. It seems we should be able to do that sort of thing
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// in tblgen, but it could get ugly.
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def ASRi : ARMAsmPseudo<"asr${s}${p} $Rd, $Rm, $imm",
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(ins GPR:$Rd, GPR:$Rm, imm0_32:$imm, pred:$p,
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cc_out:$s)>;
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def LSRi : ARMAsmPseudo<"lsr${s}${p} $Rd, $Rm, $imm",
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(ins GPR:$Rd, GPR:$Rm, imm0_32:$imm, pred:$p,
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cc_out:$s)>;
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def LSLi : ARMAsmPseudo<"lsl${s}${p} $Rd, $Rm, $imm",
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(ins GPR:$Rd, GPR:$Rm, imm0_31:$imm, pred:$p,
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cc_out:$s)>;
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def RORi : ARMAsmPseudo<"ror${s}${p} $Rd, $Rm, $imm",
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(ins GPR:$Rd, GPR:$Rm, imm0_31:$imm, pred:$p,
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cc_out:$s)>;
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def RRXi : ARMAsmPseudo<"rrx${s}${p} $Rd, $Rm",
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(ins GPRnopc:$Rd, GPRnopc:$Rm, pred:$p, cc_out:$s)>;
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def ASRr : ARMAsmPseudo<"asr${s}${p} $Rd, $Rn, $Rm",
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(ins GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
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cc_out:$s)>;
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def LSRr : ARMAsmPseudo<"lsr${s}${p} $Rd, $Rn, $Rm",
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(ins GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
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cc_out:$s)>;
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def LSLr : ARMAsmPseudo<"lsl${s}${p} $Rd, $Rn, $Rm",
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(ins GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
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cc_out:$s)>;
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def RORr : ARMAsmPseudo<"ror${s}${p} $Rd, $Rn, $Rm",
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(ins GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
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cc_out:$s)>;
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// shifter instructions also support a two-operand form.
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def : ARMInstAlias<"asr${s}${p} $Rm, $imm",
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(ASRi GPR:$Rm, GPR:$Rm, imm0_32:$imm, pred:$p, cc_out:$s)>;
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def : ARMInstAlias<"lsr${s}${p} $Rm, $imm",
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(LSRi GPR:$Rm, GPR:$Rm, imm0_32:$imm, pred:$p, cc_out:$s)>;
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def : ARMInstAlias<"lsl${s}${p} $Rm, $imm",
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(LSLi GPR:$Rm, GPR:$Rm, imm0_31:$imm, pred:$p, cc_out:$s)>;
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def : ARMInstAlias<"ror${s}${p} $Rm, $imm",
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(RORi GPR:$Rm, GPR:$Rm, imm0_31:$imm, pred:$p, cc_out:$s)>;
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def : ARMInstAlias<"asr${s}${p} $Rn, $Rm",
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(ASRr GPRnopc:$Rn, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
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cc_out:$s)>;
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def : ARMInstAlias<"lsr${s}${p} $Rn, $Rm",
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(LSRr GPRnopc:$Rn, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
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cc_out:$s)>;
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def : ARMInstAlias<"lsl${s}${p} $Rn, $Rm",
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(LSLr GPRnopc:$Rn, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
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cc_out:$s)>;
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def : ARMInstAlias<"ror${s}${p} $Rn, $Rm",
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(RORr GPRnopc:$Rn, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p,
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cc_out:$s)>;
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// 'mul' instruction can be specified with only two operands.
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def : ARMInstAlias<"mul${s}${p} $Rn, $Rm",
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(MUL rGPR:$Rn, rGPR:$Rm, rGPR:$Rn, pred:$p, cc_out:$s)>;
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// "neg" is and alias for "rsb rd, rn, #0"
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def : ARMInstAlias<"neg${s}${p} $Rd, $Rm",
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(RSBri GPR:$Rd, GPR:$Rm, 0, pred:$p, cc_out:$s)>;
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// Pre-v6, 'mov r0, r0' was used as a NOP encoding.
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def : InstAlias<"nop${p}", (MOVr R0, R0, pred:$p, zero_reg)>,
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Requires<[IsARM, NoV6]>;
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// UMULL/SMULL are available on all arches, but the instruction definitions
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// need difference constraints pre-v6. Use these aliases for the assembly
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// parsing on pre-v6.
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def : InstAlias<"smull${s}${p} $RdLo, $RdHi, $Rn, $Rm",
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(SMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
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Requires<[IsARM, NoV6]>;
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def : InstAlias<"umull${s}${p} $RdLo, $RdHi, $Rn, $Rm",
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(UMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
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Requires<[IsARM, NoV6]>;
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// 'it' blocks in ARM mode just validate the predicates. The IT itself
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// is discarded.
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def ITasm : ARMAsmPseudo<"it$mask $cc", (ins it_pred:$cc, it_mask:$mask)>;
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