[issue42825] Build libraries with "/OPT:REF" linker optimization on Windows
Steve Dower
report at bugs.python.org
Mon Feb 1 14:51:38 EST 2021
Steve Dower <steve.dower at python.org> added the comment:
On Windows it should only affect non-exported functions. Comparing "dumpbin /exports" output will tell you whether anything has changed there.
The bigger concern is if it merges identical functions that are compared by function pointer. I know we've had issues with that in the past, and I forget how we've dealt with that. I thought OPT:REF would do this optimisation too (though ISTR it's known as COMDAT folding and may have its own option).
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<https://bugs.python.org/issue42825>
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