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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/102295] New: ELF symbol sizes for variable-length objects
 are too small (C++)
Date: Sun, 12 Sep 2021 22:46:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102295

            Bug ID: 102295
           Summary: ELF symbol sizes for variable-length objects are too
                    small (C++)
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---

Like PR 63373 but this one is for C++ (since the C front-end has been fixed
since GCC 5), GCC's C++ front-end only started to accept this in GCC 6 too.

Take:

struct blah
{
        float foo;
        int i[];
};

struct blah b =3D { 42.0, { 1, 2, 3, 4, 0 } };
------ CUT ----
GCC's C++ front-end outputs:
        .size   b, 4

Which is wrong, it should be 24.=