| ; RUN: opt -S -basicaa -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) |
