1 files changed, 12 insertions, 0 deletions
diff --git a/test/Transforms/DeadStoreElimination/PartialStore.ll b/test/Transforms/DeadStoreElimination/PartialStore.ll
new file mode 100644
index 0000000..bdc16db
--- /dev/null
+++ b/test/Transforms/DeadStoreElimination/PartialStore.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-upgrade < %s | llvm-as | opt -dse | llvm-dis | \
+; RUN:    not grep {store sbyte}
+; Ensure that the dead store is deleted in this case.  It is wholely
+; overwritten by the second store.
+int %test() {
+	%V = alloca int
+	%V2 = cast int* %V to sbyte*
+	store sbyte 0, sbyte* %V2
+	store int 1234567, int* %V
+	%X = load int* %V
+	ret int %X
+}