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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/110020] [13/14 Regression] SHA2
 misscompilation at -O3
Date: Mon, 29 May 2023 12:01:15 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110020

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This is clearly invalid testcase.
It initializes the w array with i =3D=3D 0, then w goes out of scope, then =
it
reappears uninitialized in the scope with i =3D=3D 1 and the uninitialized =
value is
used.
You'd need to move the w declaration before the outer loop to make it well
defined.=