1; RUN: opt -S -basicaa -licm < %s | FileCheck %s
2
3target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
4target triple = "i686-pc-windows-msvc18.0.0"
5
6@v = common global i32 zeroinitializer, align 4
7
8; Make sure the store to v is not sunk past the memset
9; CHECK-LABEL: @main
10; CHECK: for.body:
11; CHECK-NEXT: store i32 1, i32* @v
12; CHECK-NEXT: tail call void @llvm.memset
13; CHECK: end:
14; CHECK-NEXT: ret i32 0
15
16define i32 @main(i1 %k) {
17entry:
18  br label %for.body
19
20for.body:
21  store i32 1, i32* @v, align 4
22  tail call void @llvm.memset.p0i8.i32(i8* bitcast (i32* @v to i8*), i8 0, i32 4, i32 4, i1 false)
23  br label %for.latch
24
25for.latch:
26  br i1 %k, label %for.body, label %end
27
28end:
29  ret i32 0
30}
31
32declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1)
33