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34 lines
820 B
LLVM
34 lines
820 B
LLVM
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; RUN: opt -S -basicaa -licm < %s | FileCheck %s
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target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
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target triple = "i686-pc-windows-msvc18.0.0"
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; Make sure the store to v is not sunk past the memset
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; CHECK-LABEL: @main
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; CHECK: for.body:
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; CHECK-NEXT: store i8 1, i8* %p
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; CHECK-NEXT: store i8 2, i8* %p1
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; CHECK-NEXT: call void @llvm.memset
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; CHECK: end:
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; CHECK-NEXT: ret i32 0
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define i32 @main(i1 %k, i8* %p) {
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entry:
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%p1 = getelementptr i8, i8* %p, i32 1
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br label %for.body
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for.body:
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store i8 1, i8* %p, align 1
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store i8 2, i8* %p1, align 1
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call void @llvm.memset.p0i8.i32(i8* %p, i8 255, i32 4, i32 1, i1 false)
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br label %for.latch
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for.latch:
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br i1 %k, label %for.body, label %end
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end:
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ret i32 0
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}
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declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1)
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