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, 173 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/strncmp-2.c b/gcc/testsuite/gcc.c-torture/execute/builtins/strncmp-2.c
new file mode 100644
index 000000000..fe3462724
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/builtins/strncmp-2.c
@@ -0,0 +1,173 @@
+/* Copyright (C) 2000, 2001, 2003, 2005  Free Software Foundation.
+
+   Ensure all expected transformations of builtin strncmp occur and
+   perform correctly.
+
+   Written by Kaveh R. Ghazi, 11/26/2000.  */
+
+extern void abort (void);
+typedef __SIZE_TYPE__ size_t;
+extern int strncmp (const char *, const char *, size_t);
+
+void
+main_test (void)
+{
+#if !defined(__OPTIMIZE__) || ((defined(__i386__) || defined (__x86_64__)) && !defined(__OPTIMIZE_SIZE__))
+  /* These tests work on platforms which support cmpstrsi.  We test it
+     at -O0 on all platforms to ensure the strncmp logic is correct.  */
+  const char *const s1 = "hello world";
+  const char *s2;
+  int n = 6, x;
+  
+  s2 = s1;
+  if (strncmp (++s2, "ello", 3) != 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("ello", ++s2, 3) != 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp (++s2, "ello", 4) != 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("ello", ++s2, 4) != 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp (++s2, "ello", 5) <= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("ello", ++s2, 5) >= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp (++s2, "ello", 6) <= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("ello", ++s2, 6) >= 0 || s2 != s1+1)
+    abort();
+
+  s2 = s1;
+  if (strncmp (++s2, "zllo", 3) >= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("zllo", ++s2, 3) <= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp (++s2, "zllo", 4) >= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("zllo", ++s2, 4) <= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp (++s2, "zllo", 5) >= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("zllo", ++s2, 5) <= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp (++s2, "zllo", 6) >= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("zllo", ++s2, 6) <= 0 || s2 != s1+1)
+    abort();
+
+  s2 = s1;
+  if (strncmp (++s2, "allo", 3) <= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("allo", ++s2, 3) >= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp (++s2, "allo", 4) <= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("allo", ++s2, 4) >= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp (++s2, "allo", 5) <= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("allo", ++s2, 5) >= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp (++s2, "allo", 6) <= 0 || s2 != s1+1)
+    abort();
+  s2 = s1;
+  if (strncmp ("allo", ++s2, 6) >= 0 || s2 != s1+1)
+    abort();
+
+  s2 = s1; n = 2; x = 1;
+  if (strncmp (++s2, s1+(x&3), ++n) != 0 || s2 != s1+1 || n != 3)
+    abort();
+  s2 = s1; n = 2; x = 1;
+  if (strncmp (s1+(x&3), ++s2, ++n) != 0 || s2 != s1+1 || n != 3)
+    abort();
+  s2 = s1; n = 3; x = 1;
+  if (strncmp (++s2, s1+(x&3), ++n) != 0 || s2 != s1+1 || n != 4)
+    abort();
+  s2 = s1; n = 3; x = 1;
+  if (strncmp (s1+(x&3), ++s2, ++n) != 0 || s2 != s1+1 || n != 4)
+    abort();
+  s2 = s1; n = 4; x = 1;
+  if (strncmp (++s2, s1+(x&3), ++n) != 0 || s2 != s1+1 || n != 5)
+    abort();
+  s2 = s1; n = 4; x = 1;
+  if (strncmp (s1+(x&3), ++s2, ++n) != 0 || s2 != s1+1 || n != 5)
+    abort();
+  s2 = s1; n = 5; x = 1;
+  if (strncmp (++s2, s1+(x&3), ++n) != 0 || s2 != s1+1 || n != 6)
+    abort();
+  s2 = s1; n = 5; x = 1;
+  if (strncmp (s1+(x&3), ++s2, ++n) != 0 || s2 != s1+1 || n != 6)
+    abort();
+
+  s2 = s1; n = 2;
+  if (strncmp (++s2, "zllo", ++n) >= 0 || s2 != s1+1 || n != 3)
+    abort();
+  s2 = s1; n = 2; x = 1;
+  if (strncmp ("zllo", ++s2, ++n) <= 0 || s2 != s1+1 || n != 3)
+    abort();
+  s2 = s1; n = 3; x = 1;
+  if (strncmp (++s2, "zllo", ++n) >= 0 || s2 != s1+1 || n != 4)
+    abort();
+  s2 = s1; n = 3; x = 1;
+  if (strncmp ("zllo", ++s2, ++n) <= 0 || s2 != s1+1 || n != 4)
+    abort();
+  s2 = s1; n = 4; x = 1;
+  if (strncmp (++s2, "zllo", ++n) >= 0 || s2 != s1+1 || n != 5)
+    abort();
+  s2 = s1; n = 4; x = 1;
+  if (strncmp ("zllo", ++s2, ++n) <= 0 || s2 != s1+1 || n != 5)
+    abort();
+  s2 = s1; n = 5; x = 1;
+  if (strncmp (++s2, "zllo", ++n) >= 0 || s2 != s1+1 || n != 6)
+    abort();
+  s2 = s1; n = 5; x = 1;
+  if (strncmp ("zllo", ++s2, ++n) <= 0 || s2 != s1+1 || n != 6)
+    abort();
+
+  s2 = s1; n = 2;
+  if (strncmp (++s2, "allo", ++n) <= 0 || s2 != s1+1 || n != 3)
+    abort();
+  s2 = s1; n = 2; x = 1;
+  if (strncmp ("allo", ++s2, ++n) >= 0 || s2 != s1+1 || n != 3)
+    abort();
+  s2 = s1; n = 3; x = 1;
+  if (strncmp (++s2, "allo", ++n) <= 0 || s2 != s1+1 || n != 4)
+    abort();
+  s2 = s1; n = 3; x = 1;
+  if (strncmp ("allo", ++s2, ++n) >= 0 || s2 != s1+1 || n != 4)
+    abort();
+  s2 = s1; n = 4; x = 1;
+  if (strncmp (++s2, "allo", ++n) <= 0 || s2 != s1+1 || n != 5)
+    abort();
+  s2 = s1; n = 4; x = 1;
+  if (strncmp ("allo", ++s2, ++n) >= 0 || s2 != s1+1 || n != 5)
+    abort();
+  s2 = s1; n = 5; x = 1;
+  if (strncmp (++s2, "allo", ++n) <= 0 || s2 != s1+1 || n != 6)
+    abort();
+  s2 = s1; n = 5; x = 1;
+  if (strncmp ("allo", ++s2, ++n) >= 0 || s2 != s1+1 || n != 6)
+    abort();
+
+#endif  
+}