diff options
Diffstat (limited to 'llvm/test/Transforms/LICM/pr27262.ll')
| -rw-r--r-- | llvm/test/Transforms/LICM/pr27262.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LICM/pr27262.ll b/llvm/test/Transforms/LICM/pr27262.ll new file mode 100644 index 00000000000..5fc6d9389e0 --- /dev/null +++ b/llvm/test/Transforms/LICM/pr27262.ll @@ -0,0 +1,33 @@ +; 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" + +; Make sure the store to v is not sunk past the memset +; CHECK-LABEL: @main +; CHECK: for.body: +; CHECK-NEXT: store i8 1, i8* %p +; CHECK-NEXT: store i8 2, i8* %p1 +; CHECK-NEXT: call void @llvm.memset +; CHECK: end: +; CHECK-NEXT: ret i32 0 + +define i32 @main(i1 %k, i8* %p) { +entry: + %p1 = getelementptr i8, i8* %p, i32 1 + br label %for.body + +for.body: + store i8 1, i8* %p, align 1 + store i8 2, i8* %p1, align 1 + call void @llvm.memset.p0i8.i32(i8* %p, i8 255, i32 4, i32 1, 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, i32, i1) |
