Bug ID: 78628
           Summary: GO fails to build a translation unit decl
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: wrong-debug
          Severity: normal
          Priority: P3
         Component: go
          Assignee: ian at airs dot com
          Reporter: rguenth at gcc dot
                CC: cmang at google dot com
  Target Milestone: ---

The GO FE does not build a TRANSLATION_UNIT_DECL which both LTO and dwarf2out
(debug_hooks->register_main_translation_unit) take information from like the
language of the source.

Frontends nowadays are expected to preferably use a TRANSLATION_UNIT_DECL
as DECL_CONTEXT for file-scope entities (rather than NULL_TREE) and LTO
requires at least one TU DECL to fixup such NULL_TREE file-scope DECL_CONTEXT.

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