gcc/testsuite/gnat.dg/renaming5.adb

   1 -- PR ada/46192
   2 -- Testcase by Rolf Ebert <rolf.ebert.gcc@gmx.de>
   3
   4 -- { dg-do compile }
   5 -- { dg-options "-O2 -fdump-tree-optimized" }
   6
   7 with System; use System;
   8
   9 package body Renaming5 is
  10
  11    type Bits_In_Byte is array (0 .. 7) of Boolean;
  12    pragma Pack (Bits_In_Byte);
  13
  14    A : Bits_In_Byte;
  15    for A'Address use System'To_Address(16#c0#);
  16    pragma Volatile (A);
  17
  18    B : Bits_In_Byte renames A;
  19
  20    procedure Proc is
  21    begin
  22       while B (0) = False loop
  23          null;
  24       end loop;
  25    end;
  26
  27 end Renaming5;
  28
  29 -- { dg-final { scan-tree-dump-times "goto" 2 "optimized" } }