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Subject: [Bug tree-optimization/102608] [12 regression] Recent change to VN
 causes bogus Wuninitialized warnings & kernel build failures
Date: Thu, 07 Oct 2021 12:28:26 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102608

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:1ebf2c14c60f5f37c00bea66aba46c25d4bcf473

commit r12-4225-g1ebf2c14c60f5f37c00bea66aba46c25d4bcf473
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Oct 7 14:24:03 2021 +0200

    tree-optimization/102608 - avoid CSEing .DEFERRED_INIT

    This makes VN not CSE .DEFERRED_INIT which confuses uninit
    analysis which reports the wrong decl when facing copies
    of not initialized data.

    2021-10-07  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/102608
            * tree-ssa-sccvn.c (visit_stmt): Drop .DEFERRED_INIT to
            varying.=