gcc/testsuite/gnat.dg/debug11.adb

   1 --  { dg-do compile }
   2 --  { dg-options "-cargs -O0 -g -dA -fgnat-encodings=minimal -margs" }
   3 --
   4 --  This testcase checks that in the DWARF description of the variant type
   5 --  below, the C discriminant is properly described as unsigned, hence the 0x5a
   6 --  ('Z') and 0x80 (128) values in the DW_AT_discr_list attribute. If it was
   7 --  described as signed, we would have instead 90 and -128.
   8 --
   9 --  { dg-final { scan-assembler-times "0x5a.*DW_AT_discr_list" 1 } }
  10 --  { dg-final { scan-assembler-times "0x80.*DW_AT_discr_list" 1 } }
  11
  12 with Ada.Text_IO;
  13
  14 procedure Debug11 is
  15    type Rec_Type (C : Character) is record
  16       case C is
  17          when 'Z' .. Character'Val (128) => I : Integer;
  18          when others                     => null;
  19       end case;
  20    end record;
  21    --  R : Rec_Type := ('Z', 2);
  22    R : Rec_Type ('Z');
  23 begin
  24    R.I := 0;
  25    Ada.Text_IO.Put_Line ("" & R.C);
  26 end Debug11;