gcc/testsuite/gnat.dg/aliasing2.adb

   1 -- { dg-do compile }
   2 -- { dg-options "-O2 -gnatp -fdump-tree-optimized" }
   3
   4 -- The raise statement must be optimized away by
   5 -- virtue of TYPE_NONALIASED_COMPONENT set on A.
   6
   7 package body Aliasing2 is
   8
   9   function F (P : Ptr) return Integer is
  10   begin
  11     A (1) := 0;
  12     P.all := 1;
  13     if A(1) /= 0 then
  14       raise Program_Error;
  15     end if;
  16     return 0;
  17   end;
  18
  19 end Aliasing2;
  20
  21 -- { dg-final { scan-tree-dump-not "gnat_rcheck" "optimized" } }