Comment # 14
on bug 83436
from Emil Velikov
(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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