55 lines
1.4 KiB
LLVM
55 lines
1.4 KiB
LLVM
; RUN: llc < %s -march=arm -mattr=+v6 | FileCheck %s -check-prefix=V6
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; RUN: llc < %s -march=arm | FileCheck %s -check-prefix=V4
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; RUN: llc < %s -march=thumb -mcpu=cortex-m3 | FileCheck %s -check-prefix=M3
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define i32 @smulhi(i32 %x, i32 %y) nounwind {
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; V6: smulhi:
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; V6: smmul
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; V4: smulhi:
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; V4: smull
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; M3: smulhi:
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; M3: smull
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%tmp = sext i32 %x to i64 ; <i64> [#uses=1]
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%tmp1 = sext i32 %y to i64 ; <i64> [#uses=1]
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%tmp2 = mul i64 %tmp1, %tmp ; <i64> [#uses=1]
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%tmp3 = lshr i64 %tmp2, 32 ; <i64> [#uses=1]
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%tmp3.upgrd.1 = trunc i64 %tmp3 to i32 ; <i32> [#uses=1]
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ret i32 %tmp3.upgrd.1
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}
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define i32 @umulhi(i32 %x, i32 %y) nounwind {
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; V6: umulhi:
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; V6: umull
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; V4: umulhi:
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; V4: umull
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; M3: umulhi:
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; M3: umull
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%tmp = zext i32 %x to i64 ; <i64> [#uses=1]
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%tmp1 = zext i32 %y to i64 ; <i64> [#uses=1]
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%tmp2 = mul i64 %tmp1, %tmp ; <i64> [#uses=1]
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%tmp3 = lshr i64 %tmp2, 32 ; <i64> [#uses=1]
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%tmp3.upgrd.2 = trunc i64 %tmp3 to i32 ; <i32> [#uses=1]
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ret i32 %tmp3.upgrd.2
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}
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; rdar://r10152911
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define i32 @t3(i32 %a) nounwind {
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; V6: t3:
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; V6: smmla
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; V4: t3:
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; V4: smull
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; M3: t3:
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; M3-NOT: smmla
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; M3: smull
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entry:
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%tmp1 = mul nsw i32 %a, 3
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%tmp2 = sdiv i32 %tmp1, 23
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ret i32 %tmp2
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}
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