gcc/testsuite/g++.dg/opt/pr17697-2.C

   1 // PR tree-optimization/17697
   2 // { dg-do run }
   3 // { dg-options "-O2" }
   4
   5 extern "C"
   6 {
   7   extern int strcmp (const char *s, const char *t) throw ()
   8     __attribute__ ((pure));
   9 }
  10
  11 namespace A
  12 {
  13   extern int strcmp (const char *s, const char *t) throw ();
  14 }
  15
  16 inline int
  17 A::strcmp (const char *s, const char *t) throw ()
  18 {
  19   return ::strcmp (s, t);
  20 }
  21
  22 int
  23 foo (const char *x) throw ()
  24 {
  25   return A::strcmp ("", x);
  26 }
  27
  28 int
  29 main ()
  30 {
  31   return foo ("") != 0 || foo ("a") == 0;
  32 }