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From: "linkw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/103320] 12 Regression] Spec 2017 benchmark roms_r fails
 on PowerPC for -Ofast
Date: Thu, 09 Jun 2022 07:04:06 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103320

Kewen Lin <linkw at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |linkw at gcc dot gnu.org

--- Comment #2 from Kewen Lin <linkw at gcc dot gnu.org> ---
I also met this issue recently, not sure if roms_r's failure has the same r=
oot
cause with what we have for perlbench_r, perlbench_r's page [1] highlights =
the
option "-fno-unsafe-math-optimizations " while roms_r's [2] doesn't. One th=
ing
to note is that without -funroll-loops roms_r's verification can pass. Maybe
it's a good idea to reopen this for more investigation?

[1] https://www.spec.org/cpu2017/Docs/benchmarks/500.perlbench_r.html
[2] https://www.spec.org/cpu2017/Docs/benchmarks/554.roms_r.html=