New testcase. The store is not dead here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18307 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/DeadStoreElimination/2004-11-28-LiveStoreDeleted.ll b/test/Transforms/DeadStoreElimination/2004-11-28-LiveStoreDeleted.ll
new file mode 100644 (file)
index 0000000..31adce1
--- /dev/null
+++ b/test/Transforms/DeadStoreElimination/2004-11-28-LiveStoreDeleted.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-as < %s | opt -dse -scalarrepl -instcombine | llvm-dis | not grep 'ret int undef'
+
+int %test(double %__x) {
+       %__u = alloca { [3 x int] }
+       %tmp.1 = cast { [3 x int] }* %__u to double*
+       store double %__x, double* %tmp.1
+       %tmp.4 = getelementptr { [3 x int] }* %__u, int 0, uint 0, int 1
+       %tmp.5 = load int* %tmp.4
+       %tmp.6 = setlt int %tmp.5, 0
+       %tmp.7 = cast bool %tmp.6 to int
+       ret int %tmp.7
+}
+