[Bug 83436] Sudden framerate drops in multiple games

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83436

--- Comment #14 from Emil Velikov <emil.l.velikov at gmail.com> ---
(In reply to comment #12)
>  That happens with default ./autogen blah blah
> 
>  As i said earlier if i pass -mtune=native -march=native flags perf is
> normal, very weird and funny thing in the same time :D

Unless you're provided --enable-debug mesa does mess around with the compiler
optimisation/debug options (-O* and -g*). And it never touches -mtune or
-march. Might be that the compiler is going for some different heuristics
before/after the commit causing substantially different code to be generated ?

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