gcc/testsuite/gcc.dg/torture/pr48542.c

   1 /* { dg-do run } */
   2 /* The return-address was clobbered.  */
   3 #include <stdlib.h>
   4 #include <setjmp.h>
   5
   6 jmp_buf env;
   7 extern void sub(void);
   8 extern void sub3(void);
   9 int called;
  10 __attribute__ ((__noinline__))
  11 int sjtest()
  12 {
  13   int i;
  14   if (setjmp(env))
  15     return 99;
  16
  17   for (i = 0; i < 10; i++)
  18     sub();
  19
  20   longjmp(env, 1);
  21 }
  22
  23 __attribute__ ((__noinline__))
  24 void sub(void)
  25 {
  26   called++;
  27 }
  28
  29 int called3;
  30 __attribute__ ((__noinline__))
  31 int sjtest3()
  32 {
  33   int i;
  34   if (setjmp(env))
  35     return 42;
  36
  37   for (i = 0; i < 10; i++)
  38     sub3();
  39   return 0;
  40 }
  41
  42 __attribute__ ((__noinline__))
  43 void sub3(void)
  44 {
  45   called3++;
  46   if (called3 == 10)
  47     longjmp (env, 1);
  48 }
  49
  50 int main(void)
  51 {
  52   if (sjtest() != 99 || called != 10)
  53     abort();
  54   if (sjtest3() != 42 || called3 != 10)
  55     abort();
  56   exit (0);
  57 }