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From: "sjames at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/108250] [12/13 regression] llvm-tblgen miscompiled on
 powerpc-unknown-linux-gnu since r12-5383-g22c242342e38eb
Date: Thu, 28 Mar 2024 03:27:36 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108250

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[12/13/14 regression]       |[12/13 regression]
                   |llvm-tblgen miscompiled on  |llvm-tblgen miscompiled on
                   |powerpc-unknown-linux-gnu   |powerpc-unknown-linux-gnu
                   |since                       |since
                   |r12-5383-g22c242342e38eb    |r12-5383-g22c242342e38eb
           See Also|                            |https://bugs.gentoo.org/sho
                   |                            |w_bug.cgi?id=3D880677,
                   |                            |https://bugs.gentoo.org/sho
                   |                            |w_bug.cgi?id=3D875776

--- Comment #14 from Sam James <sjames at gcc dot gnu.org> ---
This seems "fixed" by r14-1909-g5a1ef1cfac0053. As a workaround, -fno-ipa-s=
ra
-fno-ipa-modref -fno-ipa-icf works for GCC 12/13.

I don't really intend on spending more time on this though. I've got better=
 at
debugging miscompilations since we filed this, but LLVM is still huge and n=
ot
easy for me to tackle.=