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, 25 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr51821.c b/gcc/testsuite/gcc.dg/pr51821.c
new file mode 100644
index 000000000..158172ff4
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr51821.c
@@ -0,0 +1,25 @@
+/* { dg-do run } */
+/* { dg-options "-std=c99 -O2" } */
+/* { dg-options "-std=c99 -O2 -msse" { target { i?86-*-* x86_64-*-* } } } */
+/* { dg-require-effective-target sse_runtime { target { i?86-*-* x86_64-*-* } } } */
+
+extern void abort (void);
+
+unsigned int  __attribute__((noinline))
+test (int shift_size)
+{
+  unsigned long long res = ~0;
+
+  return res << shift_size;
+}
+
+int
+main ()
+{
+  int dst = 32;
+
+  if (test (dst) != 0)
+    abort ();
+
+  return 0;
+}