obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 56 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr46614.c b/gcc/testsuite/gcc.dg/pr46614.c
new file mode 100644
index 000000000..8e757803e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr46614.c
@@ -0,0 +1,56 @@
+/* PR rtl-optimization/46614 */
+/* { dg-do run } */
+/* { dg-options "-O -fno-rename-registers -fsched2-use-superblocks -fschedule-insns2 -funroll-loops" } */
+
+extern void abort (void);
+
+struct S
+{
+  unsigned char a;
+  unsigned char b;
+  unsigned int c;
+  unsigned int e;
+  unsigned char f;
+  unsigned int g;
+};
+
+void bar (struct S *x)
+{
+  int i;
+  struct S *p = x;
+  struct S r[16];
+  unsigned j;
+  for (i = 0; i < 16; i++)
+    {
+      r[i].c = p->b + p->c;
+      j = p->c + p->f;
+      r[i].a = j + p->b;
+      r[i].f = p->f + p->e;
+      r[i].g = p->b + p->c;
+    }
+  for (i = 0; i < 16; i++)
+    {
+      if (r[i].c != x[i].b + x[i].c
+	  || r[i].a != x[i].c + x[i].f + x[i].b
+	  || r[i].f != x[i].f + x[i].e
+	  || r[i].g != x[i].b + x[i].c)
+	abort ();
+    }
+  for (i = 0; i < 16; i++)
+    {
+      r[i].b = p->c;
+      if (r[i].b != x[i].c)
+	abort ();
+    }
+}
+
+int
+main ()
+{
+  int i;
+  struct S x[16];
+  for (i = 0; i < 16; i++)
+    x[i].b = x[i].c = x[i].e = x[i].f = 5;
+  bar (x);
+  return 0;
+}