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Mercury - a Firefox fork with compiler optimizations
(github.com)
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What of those are unsafe?
https://github.com/Alex313031/Mercury/blob/main/mozconfigs/mozconfig
Everything involving
-O3
. That usually stands for "enable all standards-compliant compiler optimisations, no matter how how little their benefit or their stability".What would be even worse would be
-Ofast
which won't even care about strict standards compliance. No sane distributor distributes-Ofast
and the only distributor I'd trust to use-O3
correctly is Intel's Clear Linux.I don't know about
OPT_LEVEL
but it's likely an abstraction of the build system for this flag.Interesting. Thanks!