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, 19 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/compile/pr21021.c b/gcc/testsuite/gcc.c-torture/compile/pr21021.c
new file mode 100644
index 000000000..b74821630
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr21021.c
@@ -0,0 +1,19 @@
+/* PR tree-optimization/21021
+
+   The front end produces a comparison of mismatched types, namely an
+   integer and a pointer, causing VRP to compute TYPE_MAX_VALUE for a
+   pointer, which we cannot.  */
+
+extern void *bar (void);
+
+int
+foo (unsigned int *p, unsigned int *q)
+{
+  const void *r = bar ();
+
+  if (r >= (const void *) *p
+      && r < (const void *) *q)
+    return 1;
+
+  return 0;
+}