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, 47 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/strcpy-2.c b/gcc/testsuite/gcc.c-torture/execute/builtins/strcpy-2.c
new file mode 100644
index 000000000..c3cb6d0e5
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/builtins/strcpy-2.c
@@ -0,0 +1,47 @@
+/* Copyright (C) 2004  Free Software Foundation.
+
+   Ensure builtin strcpy is optimized into memcpy
+   even when there is more than one possible string literal
+   passed to it, but all string literals passed to it
+   have equal length.
+
+   Written by Jakub Jelinek, 9/15/2004.  */
+
+extern void abort (void);
+extern char *strcpy (char *, const char *);
+typedef __SIZE_TYPE__ size_t;
+extern void *memcpy (void *, const void *, size_t);
+extern int memcmp (const void *, const void *, size_t);
+
+char buf[32], *p;
+int i;
+
+char *
+__attribute__((noinline))
+test (void)
+{
+  int j;
+  const char *q = "abcdefg";
+  for (j = 0; j < 3; ++j)
+    {
+      if (j == i)
+        q = "bcdefgh";
+      else if (j == i + 1)
+        q = "cdefghi";
+      else if (j == i + 2)
+        q = "defghij";
+    }
+  p = strcpy (buf, q);
+  return strcpy (buf + 16, q);
+}
+
+void
+main_test (void)
+{
+#ifndef __OPTIMIZE_SIZE__
+  /* For -Os, strcpy above is not replaced with
+     memcpy (buf, q, 8);, as that is larger.  */
+  if (test () != buf + 16 || p != buf)
+    abort ();
+#endif
+}