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, 29 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/signbit-1.c b/gcc/testsuite/gcc.target/i386/signbit-1.c
new file mode 100644
index 000000000..745796d70
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/signbit-1.c
@@ -0,0 +1,29 @@
+/* PR optimization/8746 */
+/* { dg-do run } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-O1 -mtune=i586" } */
+
+extern void abort (void);
+
+unsigned char r0;
+
+int foo(int x)
+{
+  unsigned char r = x&0xf0;
+
+  if (!(r&0x80))
+  {
+    r0 = r;
+    return 0;
+  }
+  else
+    return 1;
+}
+
+int main(void)
+{
+  if (foo(0x80) != 1)
+    abort();
+
+   return 0;
+}