gcc/testsuite/gcc.dg/graphite/pr60979.c

   1 /* { dg-options "-O -fgraphite-identity" } */
   2
   3 #include <setjmp.h>
   4
   5 struct x;
   6
   7 typedef struct x **(*a)(struct x *);
   8 void d (const char *);
   9
  10 struct x {
  11     union {
  12         struct {
  13             union {
  14                 a *i;
  15             } l;
  16             int s;
  17         } y;
  18     } e;
  19 };
  20
  21 jmp_buf c;
  22
  23 void
  24 b(struct x *r)
  25 {
  26   int f;
  27   static int w = 0;
  28   volatile jmp_buf m;
  29   f = (*(((struct x *)r)->e.y.l.i[2]((struct x *)r)))->e.y.s;
  30   if (w++ != 0)
  31     __builtin_memcpy((char *)m, (const char *)c, sizeof(jmp_buf));
  32   if (setjmp (c) == 0) {
  33       int z;
  34       for (z = 0; z < 0; ++z)
  35         ;
  36   }
  37   d((const char *)m);
  38 }