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From: "unlvsur at live dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/98895] New: C++ module generates too many dead code
Date: Fri, 29 Jan 2021 21:46:19 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98895

            Bug ID: 98895
           Summary: C++ module generates too many dead code
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: unlvsur at live dot com
  Target Milestone: ---

It is a general issue. Any module unit will generate a dead entry that is
completely unused.

If those issues cannot be solved, I am sorry, I would only say C++20 modules
failed completely.

I do not think it has anything to do with tree-optimizations. The compiler =
just
should NOT emit any code to the middle-end because of the module tbh. The
module should not affect how the assembly is generated.=