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From: "sjames at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/114403] [14 regression] LLVM miscompiled with
 -O3 -march=znver2 -fno-vect-cost-model since r14-6822-g01f4251b8775c8
Date: Wed, 20 Mar 2024 17:23:43 +0000
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X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: needs-bisection, needs-reduction, wrong-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114403

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[14 regression] LLVM        |[14 regression] LLVM
                   |miscompiled with -O3        |miscompiled with -O3
                   |-march=3Dznver2               |-march=3Dznver2
                   |-fno-vect-cost-model        |-fno-vect-cost-model since
                   |                            |r14-6822-g01f4251b8775c8
                 CC|                            |tnfchris at gcc dot gnu.org

--- Comment #3 from Sam James <sjames at gcc dot gnu.org> ---
r14-6822-g01f4251b8775c8

so far, isolating it is a pain because sometimes llvm-tblgen will segfault
during the build (it's built-and-then-run to generate machine descriptions)=
.=