diff options
Diffstat (limited to 'test/Transforms/DeadStoreElimination/lifetime.ll')
| -rw-r--r-- | test/Transforms/DeadStoreElimination/lifetime.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/Transforms/DeadStoreElimination/lifetime.ll b/test/Transforms/DeadStoreElimination/lifetime.ll new file mode 100644 index 0000000..b2da790 --- /dev/null +++ b/test/Transforms/DeadStoreElimination/lifetime.ll @@ -0,0 +1,19 @@ +; RUN: opt -S -dse < %s | FileCheck %s + +declare void @llvm.lifetime.end(i64, i8*) +declare void @llvm.memset.i8(i8*, i8, i8, i32) + +define void @test1() { +; CHECK: @test1 + %A = alloca i8 + + store i8 0, i8* %A ;; Written to by memset + call void @llvm.lifetime.end(i64 1, i8* %A) +; CHECK: lifetime.end + + call void @llvm.memset.i8(i8* %A, i8 0, i8 -1, i32 0) +; CHECK-NOT: memset + + ret void +; CHECK: ret void +} |
