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From: "sjames at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/109676] [13/14 regression] ICE in simplify_subreg, at
 simplify-rtx.cc:7426 when building firefox with -O2 -march=alderlake -g since
 r13-3378-gf6c168f8c06047
Date: Sat, 29 Apr 2023 23:31:47 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109676

Sam James <sjames at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|needs-bisection             |
            Summary|[13/14 regression] ICE in   |[13/14 regression] ICE in
                   |simplify_subreg, at         |simplify_subreg, at
                   |simplify-rtx.cc:7426 when   |simplify-rtx.cc:7426 when
                   |building firefox with -O2   |building firefox with -O2
                   |-march=3Dalderlake -g         |-march=3Dalderlake -g si=
nce
                   |                            |r13-3378-gf6c168f8c06047
                 CC|                            |jamborm at gcc dot gnu.org

--- Comment #10 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #8)
> I suspect it was r13-1607-gc3ed9e0d6e96d8697e4bab994 which might have
> exposed this latent issue ...

Bisect says r13-3378-gf6c168f8c06047 and a revert on trunk works but probab=
ly
latent still=