gcc/testsuite/g++.dg/ipa/pr98690.C

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -fnon-call-exceptions" } */
   3
   4 int g;
   5 volatile int v;
   6
   7 static int * __attribute__((noinline))
   8 almost_useless_return (void)
   9 {
  10   v = 1;
  11   return &g;
  12 }
  13
  14 static void __attribute__((noinline))
  15 foo (void)
  16 {
  17   int *p = almost_useless_return ();
  18   int i = *p;
  19   v = 2;
  20 }
  21
  22 int
  23 main (int argc, char *argv[])
  24 {
  25   foo ();
  26   return 0;
  27 }