1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/forwprop-5.c b/gcc/testsuite/gcc.dg/tree-ssa/forwprop-5.c
new file mode 100644
index 000000000..033c60dae
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/forwprop-5.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized -w" } */
+/* { dg-options "-O1 -fdump-tree-optimized -w -msse" { target { i?86-*-* x86_64-*-* } } } */
+
+#define vector __attribute__((vector_size(16) ))
+struct VecClass
+{
+  vector float v;
+};
+
+vector float foo( vector float v )
+{
+    vector float x = v;
+    x = x + x;
+    struct VecClass disappear = *(struct VecClass*)&x;
+    return disappear.v;
+}
+
+/* { dg-final { scan-tree-dump-times "disappear" 0 "optimized"} } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */