diff options
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/DeadStoreElimination/calloc-store.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/test/Transforms/DeadStoreElimination/calloc-store.ll b/llvm/test/Transforms/DeadStoreElimination/calloc-store.ll new file mode 100644 index 00000000000..32b62a0bf17 --- /dev/null +++ b/llvm/test/Transforms/DeadStoreElimination/calloc-store.ll @@ -0,0 +1,17 @@ +; RUN: opt < %s -basicaa -dse -S | FileCheck %s + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" + +; Function Attrs: nounwind +declare noalias i8* @calloc(i64, i64) + +; Function Attrs: nounwind uwtable +define noalias i32* @test_store() { +; CHECK-LABEL: test_store + %1 = tail call noalias i8* @calloc(i64 1, i64 4) + %2 = bitcast i8* %1 to i32* + ; This store is dead and should be removed + store i32 0, i32* %2, align 4 +; CHECK-NOT: store i32 0, i32* %2, align 4 + ret i32* %2 +} |
