gcc/testsuite/gnat.dg/aliasing1.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 DECL_NONADDRESSABLE_P set on R.I.
   6
   7 package body Aliasing1 is
   8
   9   function F (P : Ptr) return Integer is
  10   begin
  11     R.I := 0;
  12     P.all := 1;
  13     if R.I /= 0 then
  14       raise Program_Error;
  15     end if;
  16     return 0;
  17   end;
  18
  19 end Aliasing1;
  20
  21 -- { dg-final { scan-tree-dump-not "gnat_rcheck" "optimized" } }
  22 -- { dg-final { cleanup-tree-dump "optimized" } }