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From: "pheeck at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/114057] [14 Regression] 435.gromacs fails
 verification with -Ofast -march=znver4 and PGO after r14-7272-g57f611604e8bab
Date: Fri, 23 Feb 2024 10:26:27 +0000
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X-Bugzilla-Component: tree-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114057

Filip Kastl <pheeck at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[14 Regression] 435.gromacs |[14 Regression] 435.gromacs
                   |fails verification on with  |fails verification with
                   |-Ofast -march=3Dznver4 and    |-Ofast -march=3Dznver4 a=
nd
                   |PGO                         |PGO after
                   |                            |r14-7272-g57f611604e8bab
          Component|target                      |tree-optimization

--- Comment #5 from Filip Kastl <pheeck at gcc dot gnu.org> ---
Can confirm that with -O3 -march=3Dnative PGO nor with -O3 -march=3Dnative =
PGO
-fno-signed-zeros -fno-trapping-math -ffinite-math-only -ffp-contract=3Dfas=
t the
benchmark doesn't miscompare.

Btw I just noticed that the bisection lead to the same commit as the bisect=
ion
of pr113833. I suppose that both PRs relate to the same problem.=