gcc/testsuite/gcc.c-torture/compile/pr37669.c

   1 /* This testcase used to fail because a miscompiled execute_fold_all_builtins. */
   2 /* { dg-options "-fgnu89-inline" } */
   3 /* { dg-require-effective-target int32plus } */
   4
   5 typedef __SIZE_TYPE__ size_t;
   6 extern __inline __attribute__ ((__always_inline__)) int __attribute__
   7 ((__nothrow__)) snprintf (char *__restrict __s, size_t __n, __const char
   8 *__restrict __fmt, ...)  {
   9   return __builtin___snprintf_chk (__s, __n, 2 - 1,
  10 __builtin_object_size (__s, 2 > 1), __fmt, __builtin_va_arg_pack ());
  11 }
  12 int n1, n2, n3, n4, f5, f6;
  13 char * BackgroundGetUniqueString(void)
  14 {
  15   char s[256];
  16   const char *chmap =
  17 "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_";
  18   snprintf(s, sizeof(s),
  19 "%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c",
  20            chmap[(n1 >> 0) & 0x3f], chmap[(n1 >> 6) & 0x3f],
  21            chmap[(n1 >> 12) & 0x3f], chmap[(n1 >> 18) & 0x3f],
  22            chmap[(n1 >> 24) & 0x3f], chmap[(n1 >> 28) & 0x3f],
  23            chmap[(n2 >> 0) & 0x3f], chmap[(n2 >> 6) & 0x3f],
  24            chmap[(n2 >> 12) & 0x3f], chmap[(n2 >> 18) & 0x3f],
  25            chmap[(n2 >> 24) & 0x3f], chmap[(n2 >> 28) & 0x3f],
  26            chmap[(n3 >> 0) & 0x3f], chmap[(n3 >> 6) & 0x3f],
  27            chmap[(n3 >> 12) & 0x3f], chmap[(n3 >> 18) & 0x3f],
  28            chmap[(n3 >> 24) & 0x3f], chmap[(n3 >> 28) & 0x3f],
  29            chmap[(n4 >> 0) & 0x3f], chmap[(n4 >> 6) & 0x3f],
  30            chmap[(n4 >> 12) & 0x3f], chmap[(n4 >> 18) & 0x3f],
  31            chmap[(n4 >> 24) & 0x3f], chmap[(n4 >> 28) & 0x3f],
  32            chmap[(f5 >> 12) & 0x3f], chmap[(f5 >> 18) & 0x3f],
  33            chmap[(f5 >> 24) & 0x3f], chmap[(f5 >> 28) & 0x3f],
  34            chmap[(f6 >> 0) & 0x3f], chmap[(f6 >> 6) & 0x3f]
  35            );
  36   return __builtin_strdup(s);
  37 }