On Wednesday, 2 September 2026 13:30:36 Central European Summer Time Jakub Jelinek via devel wrote: > kills significant amount of performance > (...) > significant penalization of properly written code, it will significantly > affect instruction scheduling, dead store elimination, full/partial > redundancy optimization etc. > (...) > will break significant amount of valid C++ code
Oof, these are strongly worded concerns coming from the GCC team - thanks for raising them. I'd be interested to see Amazon backing up their claims to the contrary with concrete data. On Friday, 14 August 2026 09:43:44 Central European Summer Time Manthey, Norbert via devel wrote: > For these flags, we did not see significant changes in performance tests. We > found a few packages where the additional flags caused build errors, and > submitted fixed to the respective packages. Christoph
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