mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
33 lines
786 B
LLVM
33 lines
786 B
LLVM
; RUN: opt -S -basic-aa -licm < %s | FileCheck %s
|
|
|
|
target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
|
|
target triple = "i686-pc-windows-msvc18.0.0"
|
|
|
|
@v = common global i32 zeroinitializer, align 4
|
|
|
|
; Make sure the store to v is not sunk past the memset
|
|
; CHECK-LABEL: @main
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: store i32 1, i32* @v
|
|
; CHECK-NEXT: tail call void @llvm.memset
|
|
; CHECK: end:
|
|
; CHECK-NEXT: ret i32 0
|
|
|
|
define i32 @main(i1 %k) {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
store i32 1, i32* @v, align 4
|
|
tail call void @llvm.memset.p0i8.i32(i8* align 4 bitcast (i32* @v to i8*), i8 0, i32 4, i1 false)
|
|
br label %for.latch
|
|
|
|
for.latch:
|
|
br i1 %k, label %for.body, label %end
|
|
|
|
end:
|
|
ret i32 0
|
|
}
|
|
|
|
declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i1)
|