new testcase dse is miscompiling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24544 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/DeadStoreElimination/2005-11-30-vaarg.ll b/test/Transforms/DeadStoreElimination/2005-11-30-vaarg.ll
new file mode 100644 (file)
index 0000000..4a6ebdf
--- /dev/null
+++ b/test/Transforms/DeadStoreElimination/2005-11-30-vaarg.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | opt -dse | llvm-dis | grep store
+
+double %foo(sbyte* %X) {
+        %X_addr = alloca sbyte*
+        store sbyte* %X, sbyte** %X_addr  ;; not a dead store.
+        %tmp.0 = va_arg sbyte** %X_addr, double
+        ret double %tmp.0
+}
+