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, 43 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/ieee/fp-cmp-3.c b/gcc/testsuite/gcc.c-torture/execute/ieee/fp-cmp-3.c
new file mode 100644
index 000000000..710b85ccb
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/ieee/fp-cmp-3.c
@@ -0,0 +1,43 @@
+#ifndef SIGNAL_SUPPRESS
+#include <signal.h>
+#endif
+
+long double dnan = 1.0l/0.0l - 1.0l/0.0l;
+long double x = 1.0l;
+
+void leave ()
+{
+  exit (0);
+}
+
+main ()
+{
+#if ! defined (__vax__) && ! defined (_CRAY)
+  /* Move this line earlier, for architectures (like alpha) that issue 
+     SIGFPE on the first comparisons. */
+#ifndef SIGNAL_SUPPRESS
+  /* Some machines catches a SIGFPE when a NaN is compared.
+     Let this test succeed o such machines.  */
+  signal (SIGFPE, leave);
+#endif
+  /* NaN is an IEEE unordered operand.  All these test should be false.  */
+  if (dnan == dnan)
+    abort ();
+  if (dnan != x)
+    x = 1.0;
+  else
+    abort ();
+
+  if (dnan < x)
+    abort ();
+  if (dnan > x)
+    abort ();
+  if (dnan <= x)
+    abort ();
+  if (dnan >= x)
+    abort ();
+  if (dnan == x)
+    abort ();
+#endif
+  exit (0);
+}