1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vector-2.c b/gcc/testsuite/gcc.dg/tree-ssa/vector-2.c
new file mode 100644
index 000000000..e34532d3f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/vector-2.c
@@ -0,0 +1,23 @@
+/* { dg-do compile } */
+/* { dg-options "-w -O1 -fdump-tree-optimized" } */
+/* { dg-options "-w -O1 -fdump-tree-optimized -msse" { target { i?86-*-* x86_64-*-* } } } */
+
+#define vector __attribute__(( vector_size(16) ))
+
+float f(vector float a, int b, vector float c)
+{
+  vector float dd = c*a;
+  a = (vector float){0,0,0,0};
+  c = (vector float){0,0,0,0};
+  {
+   float d = ((float*)&a)[0];
+   float d1 = ((float*)&c)[0];
+   return d*d1;
+  }
+}
+
+/* We should be able to optimize this to just "return 0.0;" */
+/* { dg-final { scan-tree-dump-times "BIT_FIELD_REF" 0 "optimized"} } */
+/* { dg-final { scan-tree-dump-times "0.0" 1 "optimized"} } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */