gcc/testsuite/gcc.c-torture/execute/pr56982.c

   1 /* { dg-require-effective-target indirect_jumps } */
   2 #include <setjmp.h>
   3
   4 extern void abort (void);
   5 extern void exit (int);
   6
   7 static jmp_buf env;
   8
   9 void baz (void)
  10 {
  11   __asm__ volatile ("" : : : "memory");
  12 }
  13
  14 static inline int g(int x)
  15 {
  16     if (x)
  17     {
  18         baz();
  19         return 0;
  20     }
  21     else
  22     {
  23         baz();
  24         return 1;
  25     }
  26 }
  27
  28 int f(int *e)
  29 {
  30     if (*e)
  31       return 1;
  32
  33     int x = setjmp(env);
  34     int n = g(x);
  35     if (n == 0)
  36       exit(0);
  37     if (x)
  38       abort();
  39     longjmp(env, 42);
  40 }
  41
  42 int main(int argc, char** argv)
  43 {
  44     int v = 0;
  45     return f(&v);
  46 }