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, 32 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr47148.c b/gcc/testsuite/gcc.c-torture/execute/pr47148.c
new file mode 100644
index 000000000..8363631a9
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr47148.c
@@ -0,0 +1,32 @@
+/* PR tree-optimization/47148 */
+
+static inline unsigned
+bar (unsigned x, unsigned y)
+{
+  if (y >= 32)
+    return x;
+  else
+    return x >> y;
+}
+
+static unsigned a = 1, b = 1;
+
+static inline void
+foo (unsigned char x, unsigned y)
+{
+  if (!y)
+    return;
+  unsigned c = (0x7000U / (x - 2)) ^ a;
+  unsigned d = bar (a, a);
+  b &= ((a - d) && (a - 1)) + c;
+}
+
+int
+main (void)
+{
+  foo (1, 1);
+  foo (-1, 1);
+  if (b && ((unsigned char) -1) == 255)
+    __builtin_abort ();
+  return 0;
+}