//===- llvm/unittest/VMCore/InstructionsTest.cpp - Instructions unit tests ===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "llvm/Instructions.h" #include "llvm/BasicBlock.h" #include "llvm/Constants.h" #include "llvm/DerivedTypes.h" #include "llvm/LLVMContext.h" #include "llvm/Operator.h" #include "llvm/ADT/STLExtras.h" #include "llvm/Analysis/ValueTracking.h" #include "llvm/Support/MDBuilder.h" #include "llvm/Support/IRBuilder.h" #include "llvm/Target/TargetData.h" #include "gtest/gtest.h" namespace llvm { namespace { TEST(InstructionsTest, ReturnInst) { LLVMContext &C(getGlobalContext()); // test for PR6589 const ReturnInst* r0 = ReturnInst::Create(C); EXPECT_EQ(r0->getNumOperands(), 0U); EXPECT_EQ(r0->op_begin(), r0->op_end()); IntegerType* Int1 = IntegerType::get(C, 1); Constant* One = ConstantInt::get(Int1, 1, true); const ReturnInst* r1 = ReturnInst::Create(C, One); EXPECT_EQ(1U, r1->getNumOperands()); User::const_op_iterator b(r1->op_begin()); EXPECT_NE(r1->op_end(), b); EXPECT_EQ(One, *b); EXPECT_EQ(One, r1->getOperand(0)); ++b; EXPECT_EQ(r1->op_end(), b); // clean up delete r0; delete r1; } TEST(InstructionsTest, BranchInst) { LLVMContext &C(getGlobalContext()); // Make a BasicBlocks BasicBlock* bb0 = BasicBlock::Create(C); BasicBlock* bb1 = BasicBlock::Create(C); // Mandatory BranchInst const BranchInst* b0 = BranchInst::Create(bb0); EXPECT_TRUE(b0->isUnconditional()); EXPECT_FALSE(b0->isConditional()); EXPECT_EQ(1U, b0->getNumSuccessors()); // check num operands EXPECT_EQ(1U, b0->getNumOperands()); EXPECT_NE(b0->op_begin(), b0->op_end()); EXPECT_EQ(b0->op_end(), llvm::next(b0->op_begin())); EXPECT_EQ(b0->op_end(), llvm::next(b0->op_begin())); IntegerType* Int1 = IntegerType::get(C, 1); Constant* One = ConstantInt::get(Int1, 1, true); // Conditional BranchInst BranchInst* b1 = BranchInst::Create(bb0, bb1, One); EXPECT_FALSE(b1->isUnconditional()); EXPECT_TRUE(b1->isConditional()); EXPECT_EQ(2U, b1->getNumSuccessors()); // check num operands EXPECT_EQ(3U, b1->getNumOperands()); User::const_op_iterator b(b1->op_begin()); // check COND EXPECT_NE(b, b1->op_end()); EXPECT_EQ(One, *b); EXPECT_EQ(One, b1->getOperand(0)); EXPECT_EQ(One, b1->getCondition()); ++b; // check ELSE EXPECT_EQ(bb1, *b); EXPECT_EQ(bb1, b1->getOperand(1)); EXPECT_EQ(bb1, b1->getSuccessor(1)); ++b; // check THEN EXPECT_EQ(bb0, *b); EXPECT_EQ(bb0, b1->getOperand(2)); EXPECT_EQ(bb0, b1->getSuccessor(0)); ++b; EXPECT_EQ(b1->op_end(), b); // clean up delete b0; delete b1; delete bb0; delete bb1; } TEST(InstructionsTest, CastInst) { LLVMContext &C(getGlobalContext()); Type* Int8Ty = Type::getInt8Ty(C); Type* Int64Ty = Type::getInt64Ty(C); Type* V8x8Ty = VectorType::get(Int8Ty, 8); Type* V8x64Ty = VectorType::get(Int64Ty, 8); Type* X86MMXTy = Type::getX86_MMXTy(C); const Constant* c8 = Constant::getNullValue(V8x8Ty); const Constant* c64 = Constant::getNullValue(V8x64Ty); EXPECT_TRUE(CastInst::isCastable(V8x8Ty, X86MMXTy)); EXPECT_TRUE(CastInst::isCastable(X86MMXTy, V8x8Ty)); EXPECT_FALSE(CastInst::isCastable(Int64Ty, X86MMXTy)); EXPECT_TRUE(CastInst::isCastable(V8x64Ty, V8x8Ty)); EXPECT_TRUE(CastInst::isCastable(V8x8Ty, V8x64Ty)); EXPECT_EQ(CastInst::Trunc, CastInst::getCastOpcode(c64, true, V8x8Ty, true)); EXPECT_EQ(CastInst::SExt, CastInst::getCastOpcode(c8, true, V8x64Ty, true)); } TEST(InstructionsTest, VectorGep) { LLVMContext &C(getGlobalContext()); // Type Definitions PointerType *Ptri8Ty = PointerType::get(IntegerType::get(C, 8), 0); PointerType *Ptri32Ty = PointerType::get(IntegerType::get(C, 8), 0); VectorType *V2xi8PTy = VectorType::get(Ptri8Ty, 2); VectorType *V2xi32PTy = VectorType::get(Ptri32Ty, 2); // Test different aspects of the vector-of-pointers type // and GEPs which use this type. ConstantInt *Ci32a = ConstantInt::get(C, APInt(32, 1492)); ConstantInt *Ci32b = ConstantInt::get(C, APInt(32, 1948)); std::vector ConstVa(2, Ci32a); std::vector ConstVb(2, Ci32b); Constant *C2xi32a = ConstantVector::get(ConstVa); Constant *C2xi32b = ConstantVector::get(ConstVb); CastInst *PtrVecA = new IntToPtrInst(C2xi32a, V2xi32PTy); CastInst *PtrVecB = new IntToPtrInst(C2xi32b, V2xi32PTy); ICmpInst *ICmp0 = new ICmpInst(ICmpInst::ICMP_SGT, PtrVecA, PtrVecB); ICmpInst *ICmp1 = new ICmpInst(ICmpInst::ICMP_ULT, PtrVecA, PtrVecB); EXPECT_NE(ICmp0, ICmp1); // suppress warning. GetElementPtrInst *Gep0 = GetElementPtrInst::Create(PtrVecA, C2xi32a); GetElementPtrInst *Gep1 = GetElementPtrInst::Create(PtrVecA, C2xi32b); GetElementPtrInst *Gep2 = GetElementPtrInst::Create(PtrVecB, C2xi32a); GetElementPtrInst *Gep3 = GetElementPtrInst::Create(PtrVecB, C2xi32b); CastInst *BTC0 = new BitCastInst(Gep0, V2xi8PTy); CastInst *BTC1 = new BitCastInst(Gep1, V2xi8PTy); CastInst *BTC2 = new BitCastInst(Gep2, V2xi8PTy); CastInst *BTC3 = new BitCastInst(Gep3, V2xi8PTy); Value *S0 = BTC0->stripPointerCasts(); Value *S1 = BTC1->stripPointerCasts(); Value *S2 = BTC2->stripPointerCasts(); Value *S3 = BTC3->stripPointerCasts(); EXPECT_NE(S0, Gep0); EXPECT_NE(S1, Gep1); EXPECT_NE(S2, Gep2); EXPECT_NE(S3, Gep3); int64_t Offset; TargetData TD("e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3" "2:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80" ":128:128-n8:16:32:64-S128"); // Make sure we don't crash GetPointerBaseWithConstantOffset(Gep0, Offset, TD); GetPointerBaseWithConstantOffset(Gep1, Offset, TD); GetPointerBaseWithConstantOffset(Gep2, Offset, TD); GetPointerBaseWithConstantOffset(Gep3, Offset, TD); // Gep of Geps GetElementPtrInst *GepII0 = GetElementPtrInst::Create(Gep0, C2xi32b); GetElementPtrInst *GepII1 = GetElementPtrInst::Create(Gep1, C2xi32a); GetElementPtrInst *GepII2 = GetElementPtrInst::Create(Gep2, C2xi32b); GetElementPtrInst *GepII3 = GetElementPtrInst::Create(Gep3, C2xi32a); EXPECT_EQ(GepII0->getNumIndices(), 1u); EXPECT_EQ(GepII1->getNumIndices(), 1u); EXPECT_EQ(GepII2->getNumIndices(), 1u); EXPECT_EQ(GepII3->getNumIndices(), 1u); EXPECT_FALSE(GepII0->hasAllZeroIndices()); EXPECT_FALSE(GepII1->hasAllZeroIndices()); EXPECT_FALSE(GepII2->hasAllZeroIndices()); EXPECT_FALSE(GepII3->hasAllZeroIndices()); delete GepII0; delete GepII1; delete GepII2; delete GepII3; delete BTC0; delete BTC1; delete BTC2; delete BTC3; delete Gep0; delete Gep1; delete Gep2; delete Gep3; delete ICmp0; delete ICmp1; delete PtrVecA; delete PtrVecB; } TEST(InstructionsTest, FPMathOperator) { LLVMContext &Context = getGlobalContext(); IRBuilder<> Builder(Context); MDBuilder MDHelper(Context); Instruction *I = Builder.CreatePHI(Builder.getDoubleTy(), 0); MDNode *MD1 = MDHelper.createFPMath(1.0); Value *V1 = Builder.CreateFAdd(I, I, "", MD1); EXPECT_TRUE(isa(V1)); FPMathOperator *O1 = cast(V1); EXPECT_EQ(O1->getFPAccuracy(), 1.0); delete V1; delete I; } } // end anonymous namespace } // end namespace llvm