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, 59 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr43385.c b/gcc/testsuite/gcc.c-torture/execute/pr43385.c
new file mode 100644
index 000000000..eeb9096a8
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr43385.c
@@ -0,0 +1,59 @@
+/* PR c/43385 */
+
+extern void abort (void);
+
+int e;
+
+__attribute__((noinline)) void
+foo (int x, int y)
+{
+  if (__builtin_expect (x, 0) && y != 0)
+    e++;
+}
+
+__attribute__((noinline)) int
+bar (int x, int y)
+{
+  if (__builtin_expect (x, 0) && y != 0)
+    return 1;
+  else
+    return 0;
+}
+
+int
+main (void)
+{
+  int z = 0;
+  asm ("" : "+r" (z));
+  foo (z + 2, z + 1);
+  if (e != 1)
+    abort ();
+  foo (z + 2, z);
+  if (e != 1)
+    abort ();
+  foo (z + 1, z + 1);
+  if (e != 2)
+    abort ();
+  foo (z + 1, z);
+  if (e != 2)
+    abort ();
+  foo (z, z + 1);
+  if (e != 2)
+    abort ();
+  foo (z, z);
+  if (e != 2)
+    abort ();
+  if (bar (z + 2, z + 1) != 1)
+    abort ();
+  if (bar (z + 2, z) != 0)
+    abort ();
+  if (bar (z + 1, z + 1) != 1)
+    abort ();
+  if (bar (z + 1, z) != 0)
+    abort ();
+  if (bar (z, z + 1) != 0)
+    abort ();
+  if (bar (z, z) != 0)
+    abort ();
+  return 0;
+}