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, 42 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/pr47564.c b/gcc/testsuite/gcc.target/i386/pr47564.c
new file mode 100644
index 000000000..5d3f25d10
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr47564.c
@@ -0,0 +1,42 @@
+/* PR target/47564 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -msse2" } */
+
+static inline unsigned long long
+foo (const unsigned char *p)
+{
+  return 1;
+}
+
+__attribute__ ((__target__ ("sse4"))) void
+bar (unsigned long long *x, const void *b, long long m)
+{
+  const unsigned char *p = (const unsigned char *) b;
+  const unsigned char *e = p + m;
+  unsigned int l = *x;
+  unsigned long long n = l;
+
+  if ((e - p) >= 8192)
+    {
+      while ((e - p) >= 128)
+	{
+	  n = __builtin_ia32_crc32di (n, foo (p));
+	  n = __builtin_ia32_crc32di (n, foo (p));
+	  n = __builtin_ia32_crc32di (n, foo (p));
+	  n = __builtin_ia32_crc32di (n, foo (p));
+	  n = __builtin_ia32_crc32di (n, foo (p));
+	  n = __builtin_ia32_crc32di (n, foo (p));
+	  n = __builtin_ia32_crc32di (n, foo (p));
+	  n = __builtin_ia32_crc32di (n, foo (p));
+	  n = __builtin_ia32_crc32di (n, foo (p));
+	}
+    }
+
+  while ((e - p) >= 16)
+    {
+      n = __builtin_ia32_crc32di (n, foo (p));
+      n = __builtin_ia32_crc32di (n, foo (p));
+    }
+  l = n;
+  *x = l;
+}