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, 107 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/string-opt-5.c b/gcc/testsuite/gcc.c-torture/execute/string-opt-5.c
new file mode 100644
index 000000000..178812226
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/string-opt-5.c
@@ -0,0 +1,107 @@
+/* Copyright (C) 2000  Free Software Foundation.
+
+   Ensure builtin strlen, strcmp, strchr, strrchr and strncpy
+   perform correctly.
+
+   Written by Jakub Jelinek, 11/7/2000.  */
+
+extern void abort (void);
+extern __SIZE_TYPE__ strlen (const char *);
+extern int strcmp (const char *, const char *);
+extern char *strchr (const char *, int);
+extern char *strrchr (const char *, int);
+extern char *strncpy (char *, const char *, __SIZE_TYPE__);
+extern void *memset (void *, int, __SIZE_TYPE__);
+extern int memcmp (const void *, const void *, __SIZE_TYPE__);
+
+int x = 6;
+int y = 1;
+char *bar = "hi world";
+char buf [64];
+
+int main()
+{
+  const char *const foo = "hello world";
+  char dst [64];
+
+  if (strlen (bar) != 8)
+    abort ();
+  if (strlen (bar + (++x & 2)) != 6)
+    abort ();
+  if (x != 7)
+    abort ();
+  if (strlen (foo + (x++, 6)) != 5)
+    abort ();
+  if (x != 8)
+    abort ();
+  if (strlen (foo + (++x & 1)) != 10)
+    abort ();
+  if (x != 9)
+    abort ();
+  if (strcmp (foo + (x -= 6), "lo world"))
+    abort ();
+  if (x != 3)
+    abort ();
+  if (strcmp (foo, bar) >= 0)
+    abort ();
+  if (strcmp (foo, bar + (x++ & 1)) >= 0)
+    abort ();
+  if (x != 4)
+    abort ();
+  if (strchr (foo + (x++ & 7), 'l') != foo + 9)
+    abort ();
+  if (x != 5)
+    abort ();
+  if (strchr (bar, 'o') != bar + 4)
+    abort ();
+  if (strchr (bar, '\0')  != bar + 8)
+    abort ();
+  if (strrchr (bar, 'x'))
+    abort ();
+  if (strrchr (bar, 'o') != bar + 4)
+    abort ();
+  if (strcmp (foo + (x++ & 1), "ello world" + (--y & 1)))
+    abort ();
+  if (x != 6 || y != 0)
+    abort ();
+  dst[5] = ' ';
+  dst[6] = '\0';
+  x = 5;
+  y = 1;
+  if (strncpy (dst + 1, foo + (x++ & 3), 4) != dst + 1
+      || x != 6
+      || strcmp (dst + 1, "ello "))
+    abort ();
+  memset (dst, ' ', sizeof dst);
+  if (strncpy (dst + (++x & 1), (y++ & 3) + "foo", 10) != dst + 1
+      || x != 7
+      || y != 2
+      || memcmp (dst, " oo\0\0\0\0\0\0\0\0 ", 12))
+    abort ();
+  memset (dst, ' ', sizeof dst);
+  if (strncpy (dst, "hello", 8) != dst || memcmp (dst, "hello\0\0\0 ", 9))
+    abort ();
+  x = '!';
+  memset (buf, ' ', sizeof buf);
+  if (memset (buf, x++, ++y) != buf
+      || x != '!' + 1
+      || y != 3
+      || memcmp (buf, "!!!", 3))
+    abort ();
+  if (memset (buf + y++, '-', 8) != buf + 3
+      || y != 4
+      || memcmp (buf, "!!!--------", 11))
+    abort ();
+  x = 10;
+  if (memset (buf + ++x, 0, y++) != buf + 11
+      || x != 11
+      || y != 5
+      || memcmp (buf + 8, "---\0\0\0", 7))
+    abort ();
+  if (memset (buf + (x += 4), 0, 6) != buf + 15
+      || x != 15
+      || memcmp (buf + 10, "-\0\0\0\0\0\0\0\0\0", 11))
+    abort ();
+
+  return 0;
+}