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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/111397] [12/13 Regression] Spurious warning
 "'({anonymous})' is used uninitialized" when calling a __returns_twice__
 function (-Wuninitialized -O2)
Date: Wed, 13 Sep 2023 08:25:23 +0000
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X-Bugzilla-Component: tree-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111397

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |12.3.1, 13.2.1
            Summary|Spurious warning            |[12/13 Regression] Spurious
                   |"'({anonymous})' is used    |warning "'({anonymous})' is
                   |uninitialized" when calling |used uninitialized" when
                   |a __returns_twice__         |calling a __returns_twice__
                   |function (-Wuninitialized   |function (-Wuninitialized
                   |-O2)                        |-O2)
           Priority|P3                          |P2
   Target Milestone|---                         |12.4
             Blocks|                            |24639
      Known to work|                            |11.4.1, 14.0

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed on trunk, I know it works on the 13 branch, eventually will backport.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D24639
[Bug 24639] [meta-bug] bug to track all Wuninitialized issues=