gcc/testsuite/g++.dg/opt/nothrow1.C

   1 // Test that the nothrow optimization works properly.
   2 // { dg-do compile }
   3 // { dg-options "-O -fdump-tree-optimized" }
   4
   5 extern void blah() throw();
   6
   7 int i, j, k;
   8
   9 int main()
  10 {
  11   try
  12     {
  13       ++i;
  14       blah();
  15       ++j;
  16     }
  17   catch (...)
  18     {
  19       return -42;
  20     }
  21 }
  22
  23 // The catch block should be optimized away.
  24 // { dg-final { scan-tree-dump-times "-42" 0 "optimized" } }
  25 // { dg-final { cleanup-tree-dump "optimized" } }