[PATCH] D67563: Debug Info: Add support for named constants

[Sourabh Singh Tomar via Phabricator via llvm-commits]

SouraVX added a comment.
Herald added subscribers: dexonsmith, jdoerfert.

In D67563#1675361 <https://reviews.llvm.org/D67563#1675361>, @aprantl wrote:

> In D67563#1675356 <https://reviews.llvm.org/D67563#1675356>, @aprantl wrote:
>
>> How do Fortran compilers represent regular versus inout arguments in DWARF?
>
> According to godbolt.org, gfortran 8.2 emits the same DWARF for in and inout parameters. That doesn't help :-)

For Fortran snippet:

  module foo
  integer, parameter :: bar = 200
  end module foo

$gfortran -c module.f90
DWARF:

  0x00000055:     DW_TAG_constant
                    DW_AT_name    ("bar")
                    DW_AT_decl_file       ("mod.f90")
                    DW_AT_decl_line       (3)
                    DW_AT_decl_column     (0x27)
                    DW_AT_type    (0x0000006a "const integer(kind=4)")
                    DW_AT_external        (true)
                    DW_AT_const_value     (0xc8)


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