gcc/testsuite/gcc.dg/uninit-pr100732.c

   1 /* PR middle-end/100732 - ICE on sprintf %s with integer argument
   2    { dg-do compile }
   3    { dg-options "-O2 -Wall -fdump-tree-optimized" } */
   4
   5 void nowarn_s_i (char *d, int i)
   6 {
   7   __builtin_sprintf (d, "%s", i);       // { dg-warning "\\\[-Wformat" }
   8 }
   9
  10 void warn_s_i (char *d)
  11 {
  12   int i;
  13   __builtin_sprintf (d, "%s", i);       // { dg-warning "\\\[-Wformat" }
  14                                         // { dg-warning "\\\[-Wuninitialized" "" { target *-*-* } .-1 }
  15 }
  16
  17 void warn_i_i (char *d)
  18 {
  19   int i;
  20   __builtin_sprintf (d, "%i", i);       // { dg-warning "\\\[-Wuninitialized" }
  21 }