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, 50 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr37924.c b/gcc/testsuite/gcc.c-torture/execute/pr37924.c
new file mode 100644
index 000000000..ec098ff55
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr37924.c
@@ -0,0 +1,50 @@
+/* PR c/37924 */
+
+extern void abort (void);
+
+signed char a;
+unsigned char b;
+
+int
+test1 (void)
+{
+  int c = -1;
+  return ((unsigned int) (a ^ c)) >> 9;
+}
+
+int
+test2 (void)
+{
+  int c = -1;
+  return ((unsigned int) (b ^ c)) >> 9;
+}
+
+int
+main (void)
+{
+  a = 0;
+  if (test1 () != (-1U >> 9))
+    abort ();
+  a = 0x40;
+  if (test1 () != (-1U >> 9))
+    abort ();
+  a = 0x80;
+  if (test1 () != (a < 0) ? 0 : (-1U >> 9))
+    abort ();
+  a = 0xff;
+  if (test1 () != (a < 0) ? 0 : (-1U >> 9))
+    abort ();
+  b = 0;
+  if (test2 () != (-1U >> 9))
+    abort ();
+  b = 0x40;
+  if (test2 () != (-1U >> 9))
+    abort ();
+  b = 0x80;
+  if (test2 () != (-1U >> 9))
+    abort ();
+  b = 0xff;
+  if (test2 () != (-1U >> 9))
+    abort ();
+  return 0;
+}