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db3c169f3a
support for x86, and UMULO/SMULO for many architectures, including PPC (PR4201), ARM, and Cell. The resulting expansion isn't perfect, but it's not bad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73477 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
499 B
LLVM
16 lines
499 B
LLVM
; RUN: llvm-as < %s | llc -march=ppc32
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declare {i32, i1} @llvm.umul.with.overflow.i32(i32 %a, i32 %b)
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define i1 @a(i32 %x) zeroext nounwind {
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%res = call {i32, i1} @llvm.umul.with.overflow.i32(i32 %x, i32 3)
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%obil = extractvalue {i32, i1} %res, 1
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ret i1 %obil
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}
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declare {i32, i1} @llvm.smul.with.overflow.i32(i32 %a, i32 %b)
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define i1 @b(i32 %x) zeroext nounwind {
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%res = call {i32, i1} @llvm.smul.with.overflow.i32(i32 %x, i32 3)
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%obil = extractvalue {i32, i1} %res, 1
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ret i1 %obil
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}
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