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, 55 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/ieee/rbug.c b/gcc/testsuite/gcc.c-torture/execute/ieee/rbug.c
new file mode 100644
index 000000000..1586bd7d4
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/ieee/rbug.c
@@ -0,0 +1,55 @@
+#if defined(__i386__) && defined(__FreeBSD__)
+#include <ieeefp.h>
+#endif
+
+double d (unsigned long long k)
+{
+  double x;
+
+  x = (double) k;
+  return x;
+}
+
+float s (unsigned long long k)
+{
+  float x;
+
+  x = (float) k;
+  return x;
+}
+
+main ()
+{
+  unsigned long long int k;
+  double x;
+
+#if defined(__i386__) && defined(__FreeBSD__)
+  /* This test case assumes extended-precision, but FreeBSD defaults to
+     double-precision.  Make it so.  */
+  fpsetprec (FP_PE);
+#endif
+
+  if (sizeof (double) >= 8)
+    {
+      k = 0x8693ba6d7d220401ULL;
+      x = d (k);
+      k = (unsigned long long) x;
+      if (k != 0x8693ba6d7d220800ULL)
+	abort ();
+    }
+
+  k = 0x8234508000000001ULL;
+  x = s (k);
+  k = (unsigned long long) x;
+#ifdef __SPU__
+  /* SPU float rounds towards zero.  */
+  if (k != 0x8234500000000000ULL)
+    abort ();
+#else
+  if (k != 0x8234510000000000ULL)
+    abort ();
+#endif
+
+  exit (0);
+}
+