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