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, 81 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/strcat.c b/gcc/testsuite/gcc.c-torture/execute/builtins/strcat.c
new file mode 100644
index 000000000..0fb1ba1c4
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/builtins/strcat.c
@@ -0,0 +1,81 @@
+/* Copyright (C) 2000, 2003  Free Software Foundation.
+
+   Ensure all expected transformations of builtin strcat occur and
+   perform correctly.
+
+   Written by Kaveh R. Ghazi, 11/27/2000.  */
+
+extern int inside_main;
+extern void abort (void);
+typedef __SIZE_TYPE__ size_t;
+extern char *strcat (char *, const char *);
+extern char *strcpy (char *, const char *);
+extern void *memset (void *, int, size_t);
+extern int memcmp (const void *, const void *, size_t);
+#define RESET_DST_WITH(FILLER) \
+  do { memset (dst, 'X', sizeof (dst)); strcpy (dst, (FILLER)); } while (0)
+
+void main_test (void)
+{
+  const char *const s1 = "hello world";
+  const char *const s2 = "";
+  char dst[64], *d2;
+  
+  RESET_DST_WITH (s1);
+  if (strcat (dst, "") != dst || memcmp (dst, "hello world\0XXX", 15))
+    abort();
+  RESET_DST_WITH (s1);
+  if (strcat (dst, s2) != dst || memcmp (dst, "hello world\0XXX", 15))
+    abort();
+  RESET_DST_WITH (s1); d2 = dst;
+  if (strcat (++d2, s2) != dst+1 || d2 != dst+1
+      || memcmp (dst, "hello world\0XXX", 15))
+    abort();
+  RESET_DST_WITH (s1); d2 = dst;
+  if (strcat (++d2+5, s2) != dst+6 || d2 != dst+1
+      || memcmp (dst, "hello world\0XXX", 15))
+    abort();
+  RESET_DST_WITH (s1); d2 = dst;
+  if (strcat (++d2+5, s1+11) != dst+6 || d2 != dst+1
+      || memcmp (dst, "hello world\0XXX", 15))
+    abort();
+
+#ifndef __OPTIMIZE_SIZE__
+# if !defined __i386__ && !defined __x86_64__
+  /* The functions below might not be optimized into direct stores on all
+     arches.  It depends on how many instructions would be generated and
+     what limits the architecture chooses in STORE_BY_PIECES_P.  */
+  inside_main = 0;
+# endif
+
+  RESET_DST_WITH (s1);
+  if (strcat (dst, " 1111") != dst
+      || memcmp (dst, "hello world 1111\0XXX", 20))
+    abort();
+  
+  RESET_DST_WITH (s1);
+  if (strcat (dst+5, " 2222") != dst+5
+      || memcmp (dst, "hello world 2222\0XXX", 20))
+    abort();
+  
+  RESET_DST_WITH (s1); d2 = dst;
+  if (strcat (++d2+5, " 3333") != dst+6 || d2 != dst+1
+      || memcmp (dst, "hello world 3333\0XXX", 20))
+    abort();
+  
+  RESET_DST_WITH (s1);
+  strcat (strcat (strcat (strcat (strcat (strcat (dst, ": this "), ""),
+				  "is "), "a "), "test"), ".");
+  if (memcmp (dst, "hello world: this is a test.\0X", 30))
+    abort();
+
+  /* Set inside_main again.  */
+  inside_main = 1;
+#endif
+
+  /* Test at least one instance of the __builtin_ style.  We do this
+     to ensure that it works and that the prototype is correct.  */
+  RESET_DST_WITH (s1);
+  if (__builtin_strcat (dst, "") != dst || memcmp (dst, "hello world\0XXX", 15))
+    abort();
+}