gcc/testsuite/gcc.dg/pr92493.c

   1 /* PR middle-end/92493 - ICE in get_origin_and_offset at gimple-ssa-sprintf.c
   2    { dg-do compile }
   3    { dg-options "-O3 -Wall" } */
   4
   5 struct A
   6 {
   7   int i;
   8   char a[2];
   9 } *p;
  10
  11 struct B
  12 {
  13   short j;
  14   struct A a;
  15 } b;
  16
  17 void warn (int j)
  18 {
  19   struct A *q = &b.a;
  20   p = q + j;
  21   __builtin_snprintf (p->a, 8, "%s", p->a);   // { dg-warning "\\\[-Wrestrict" }
  22 }
  23
  24 void nowarn (char *d, int j)
  25 {
  26   struct A *q = &b.a;
  27   p = q + j;
  28   __builtin_snprintf (d, 8, "%s", p->a);
  29 }