gcc/testsuite/gnat.dg/opt14.adb

   1 -- { dg-do run }
   2 -- { dg-options "-O2" }
   3
   4 procedure Opt14 is
   5
   6   type Rec is record
   7     I1, I2, I3 : Integer;
   8   end record;
   9
  10   type Ptr is access Rec;
  11
  12   P : Ptr := new Rec'(0,0,0);
  13
  14   procedure Sub (R : In Out Rec) is
  15   begin
  16     R.I3 := R.I3 - 1;
  17   end;
  18
  19 begin
  20   P.all := (1,2,3);
  21   Sub (P.all);
  22   if P.all /= (1,2,2) then
  23     raise Program_Error;
  24   end if;
  25 end;