[PATCH] D38378: [ARM] Optimize {s,u}{add,sub}.with.overflow.
Evgeny Astigeevich via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Jan 18 09:56:30 PST 2018
eastig added a comment.
Hi,
The patch caused regressions in LNT benchmarks on Cortex-A9:
SingleSource/Benchmarks/McGill/chomp: 12.79%
MultiSource/Benchmarks/FreeBench/fourinarow/fourinarow: 9.00%
There are also ~10% regressions in our benchmarks on Cortex-M4 and Cortex-M33 due to the patch.
I'm analysing them.
Thanks,
Evgeny Astigeevich
Repository:
rL LLVM
https://reviews.llvm.org/D38378
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