Synchronize with google/gcc-4_9 to r224707 (from r214835)

Change-Id: I3d6f06fc613c8f8b6a82143dc44b7338483aac5d

1 files changed, 67 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/pr64536.c b/gcc-4.9/gcc/testsuite/gcc.dg/pr64536.c
new file mode 100644
index 0000000..9a79829
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/pr64536.c
@@ -0,0 +1,67 @@
+/* PR rtl-optimization/64536 */
+/* { dg-do link } */
+/* { dg-options "-O2" } */
+/* { dg-additional-options "-fPIC" { target fpic } } */
+
+struct S { long q; } *h;
+long a, b, g, j, k, *c, *d, *e, *f, *i;
+long *baz (void)
+{
+  asm volatile ("" : : : "memory");
+  return e;
+}
+
+void
+bar (int x)
+{
+  int y;
+  for (y = 0; y < x; y++)
+    {
+      switch (b)
+	{
+	case 0:
+	case 2:
+	  a++;
+	  break;
+	case 3:
+	  a++;
+	  break;
+	case 1:
+	  a++;
+	}
+      if (d)
+	{
+	  f = baz ();
+	  g = k++;
+	  if (&h->q)
+	    {
+	      j = *f;
+	      h->q = *f;
+	    }
+	  else
+	    i = (long *) (h->q = *f);
+	  *c++ = (long) f;
+	  e += 6;
+	}
+      else
+	{
+	  f = baz ();
+	  g = k++;
+	  if (&h->q)
+	    {
+	      j = *f;
+	      h->q = *f;
+	    }
+	  else
+	    i = (long *) (h->q = *f);
+	  *c++ = (long) f;
+	  e += 6;
+	}
+    }
+}
+
+int
+main ()
+{
+  return 0;
+}