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Diffstat (limited to 'test/Transforms/DeadStoreElimination/PartialStore.ll')
-rw-r--r-- | test/Transforms/DeadStoreElimination/PartialStore.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Transforms/DeadStoreElimination/PartialStore.ll b/test/Transforms/DeadStoreElimination/PartialStore.ll new file mode 100644 index 000000000000..ce1965724f10 --- /dev/null +++ b/test/Transforms/DeadStoreElimination/PartialStore.ll @@ -0,0 +1,13 @@ +; RUN: llvm-as < %s | opt -dse | llvm-dis | \ +; RUN: not grep {store i8} +; Ensure that the dead store is deleted in this case. It is wholely +; overwritten by the second store. +define i32 @test() { + %V = alloca i32 ; <i32*> [#uses=3] + %V2 = bitcast i32* %V to i8* ; <i8*> [#uses=1] + store i8 0, i8* %V2 + store i32 1234567, i32* %V + %X = load i32* %V ; <i32> [#uses=1] + ret i32 %X +} + |