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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++/115658] New: char16_t and char32_t aliasing is conserative
Date: Wed, 26 Jun 2024 04:13:36 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 15.0
X-Bugzilla-Keywords: alias, missed-optimization
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D115658

            Bug ID: 115658
           Summary: char16_t and char32_t aliasing is conserative
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Keywords: alias, missed-optimization
          Severity: enhancement
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---

when char8_t was added, a new aliasing set was done:
r9-5405-g2d91f79dc990f8

But when char16_t and char32_t was added (for GCC 4.4/C++11):
r0-88474-gc466b2cd136139

That was not done.

Maybe it should be done now.

Noticed from https://github.com/sg16-unicode/sg16/issues/67 .=