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, 33 insertions, 0 deletions

diff --git a/gcc/testsuite/c-c++-common/dfp/signbit-2.c b/gcc/testsuite/c-c++-common/dfp/signbit-2.c
new file mode 100644
index 000000000..e51bf918b
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/dfp/signbit-2.c
@@ -0,0 +1,33 @@
+/* { dg-options "-O0" } */
+
+/* Check that the compiler uses builtins for signbit; if not the link
+   will fail because library functions are in libm.  */
+
+#include "dfp-dbg.h"
+
+volatile _Decimal32 sd = 2.3df;
+volatile _Decimal64 dd = -4.5dd;
+volatile _Decimal128 tf = 5.3dl;
+volatile float f = 1.2f;
+volatile double d = -7.8;
+volatile long double ld = 3.4L;
+
+EXTERN int signbitf (float);
+EXTERN int signbit (double);
+EXTERN int signbitl (long double);
+EXTERN int signbitd32 (_Decimal32);
+EXTERN int signbitd64 (_Decimal64);
+EXTERN int signbitd128 (_Decimal128);
+
+int
+main ()
+{
+  if (signbitf (f) != 0) FAILURE
+  if (signbit (d) == 0) FAILURE
+  if (signbitl (ld) != 0) FAILURE
+  if (signbitd32 (sd) != 0) FAILURE
+  if (signbitd64 (dd) == 0) FAILURE
+  if (signbitd128 (tf) != 0) FAILURE
+
+  FINISH
+}