[LLVMdev] Optimization for size

[James Molloy]

Hi,

 

Looking at bugzilla PR11087, I'd like to conditionalise a transformation in
ARMIselLowering.cpp based on whether we're compiling for codesize or
performance.

 

-Os doesn't actually exist for llc, and I can't see an obvious place where
that condition would be set. Where do we specify if we're optimizing for
codesize or performance?

 

Cheers,

 

James
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