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, 20 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr31959.c b/gcc/testsuite/gcc.dg/pr31959.c
new file mode 100644
index 000000000..f8090f45c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr31959.c
@@ -0,0 +1,20 @@
+/* PR middle-end/31959 */
+/* { dg-do compile } */
+/* { dg-options "-O0 -fguess-branch-probability" } */
+
+struct A { int i; };
+
+static inline struct A *
+bar (struct A *x)
+{
+  return x;
+}
+
+void *
+foo (struct A *x, int y)
+{
+  void *p = (void *) 0;
+  if (__builtin_expect (y >= 6, 0))
+    p = bar (x);
+  return p;
+}