Hi Alexandros,

Linaro benchmarking CI flagged this patch. After it clang seems to miscompile 602.gcc_s from SPEC CPU2017 for "-O3 -flto" on aarch64-linux-gnu. Also, it appears that 600.perlbench_s slows down by 9%.

Could you investigate, please? Let me know if you need any assistance in reproducing the problem.

Our Benchmarking CI is still in active development, and there are false positives, but this report seems to be legit [1].

Kind regards,

[1] https://ci.linaro.org/job/tcwg_bmk-code_speed-cpu2017speed--llvm-aarch64-mas...

-- Maxim Kuvyrkov https://www.linaro.org