gcc/testsuite/gcc.dg/pr86114.c

   1 /* PR tree-optimization/86114 - ICE in gimple_fold_builtin_strlen with
   2    an invalid call to strnlen
   3    { dg-do compile }
   4    { dg-options "-O2" }  */
   5
   6 typedef __SIZE_TYPE__ size_t;
   7
   8 extern char* strcmp (const char*, const char*);
   9 extern char* strncmp (const char*, const char*, size_t);
  10 extern char* strlen (const char*);
  11 extern char* strnlen (const char*, size_t);
  12 extern char* strcspn (const char*, const char*);
  13 extern char* strspn (const char*, const char*);
  14 extern char* strxfrm (const char*, const char*, size_t);
  15
  16 char** q;
  17
  18 void test_array (const char *s)
  19 {
  20   extern char a[8];
  21
  22   q[0] = strcmp (a, s);
  23   q[1] = strncmp (a, s, 7);
  24   q[2] = strlen (a);
  25   q[3] = strnlen (a, 7);
  26   q[4] = strcspn (a, s);
  27   q[5] = strspn (a, s);
  28   q[6] = strxfrm (a, s, 7);
  29 }
  30
  31 void test_pointer (const char *s, const char *t)
  32 {
  33   q[0] = strcmp (s, t);
  34   q[1] = strncmp (s, t, 7);
  35   q[2] = strlen (s);
  36   q[3] = strnlen (s, 7);
  37   q[4] = strcspn (s, t);
  38   q[5] = strspn (s, t);
  39   q[6] = strxfrm (s, s, 7);
  40 }
  41
  42 /* { dg-prune-output "-Wbuiltin-declaration-mismatch" } */