1 ; RUN: opt -S -basicaa -licm < %s | FileCheck %s 2 3 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" 4 target triple = "i686-pc-windows-msvc18.0.0" 5 6 ; Make sure the store to v is not sunk past the memset 7 ; CHECK-LABEL: @main 8 ; CHECK: for.body: 9 ; CHECK-NEXT: store i8 1, i8* %p 10 ; CHECK-NEXT: store i8 2, i8* %p1 11 ; CHECK-NEXT: call void @llvm.memset 12 ; CHECK: end: 13 ; CHECK-NEXT: ret i32 0 14 15 define i32 @main(i1 %k, i8* %p) { 16 entry: 17 %p1 = getelementptr i8, i8* %p, i32 1 18 br label %for.body 19 20 for.body: 21 store i8 1, i8* %p, align 1 22 store i8 2, i8* %p1, align 1 23 call void @llvm.memset.p0i8.i32(i8* %p, i8 255, i32 4, i32 1, i1 false) 24 br label %for.latch 25 26 for.latch: 27 br i1 %k, label %for.body, label %end 28 29 end: 30 ret i32 0 31 } 32 33 declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) 34
