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

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target indirect_jumps } */
   3
   4 /* The return-address was clobbered.  */
   5 #include <stdlib.h>
   6 #include <setjmp.h>
   7
   8 jmp_buf env;
   9 extern void sub(void);
  10 extern void sub3(void);
  11 int called;
  12 __attribute__ ((__noinline__))
  13 int sjtest()
  14 {
  15   int i;
  16   if (setjmp(env))
  17     return 99;
  18
  19   for (i = 0; i < 10; i++)
  20     sub();
  21
  22   longjmp(env, 1);
  23 }
  24
  25 __attribute__ ((__noinline__))
  26 void sub(void)
  27 {
  28   called++;
  29 }
  30
  31 int called3;
  32 __attribute__ ((__noinline__))
  33 int sjtest3()
  34 {
  35   int i;
  36   if (setjmp(env))
  37     return 42;
  38
  39   for (i = 0; i < 10; i++)
  40     sub3();
  41   return 0;
  42 }
  43
  44 __attribute__ ((__noinline__))
  45 void sub3(void)
  46 {
  47   called3++;
  48   if (called3 == 10)
  49     longjmp (env, 1);
  50 }
  51
  52 int main(void)
  53 {
  54   if (sjtest() != 99 || called != 10)
  55     abort();
  56   if (sjtest3() != 42 || called3 != 10)
  57     abort();
  58   exit (0);
  59 }