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531f025361
- Skip instructions added in prolog. For specific targets, prolog may insert helper function calls (e.g. _chkstk will be called when there're more than 4K bytes allocated on stack). However, these helpers don't use/def YMM/XMM registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193261 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
566 B
LLVM
23 lines
566 B
LLVM
; RUN: llc < %s -mcpu=core-avx-i -mtriple=i386-pc-win32 | FileCheck %s
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%struct_type = type { [64 x <8 x float>], <8 x float> }
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; Function Attrs: nounwind readnone
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declare i32 @llvm.x86.avx.movmsk.ps.256(<8 x float>)
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; Function Attrs: nounwind
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define i32 @equal(<8 x i32> %A) {
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allocas:
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%first_alloc = alloca [64 x <8 x i32>]
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%second_alloc = alloca %struct_type
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%A1 = bitcast <8 x i32> %A to <8 x float>
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%A2 = call i32 @llvm.x86.avx.movmsk.ps.256(<8 x float> %A1)
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ret i32 %A2
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}
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; CHECK: equal
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; CHECK-NOT: vzeroupper
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; CHECK: _chkstk
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; CHECK: ret
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