[LLVMdev] detailed comparison of generated code size for LLVM and other compilers

Anton Korobeynikov anton at korobeynikov.info
Mon Dec 14 13:54:16 PST 2009

> You'll probably need to  some digging to make sure the defaults are
> exactly comparable.  Are SSE and/or MMX used?  This affects floating
> point codegen quite a bit.  Are the target CPUs the same?
I saw in some tests the difference of the size was caused by different
defaults for FP codegen - x87 math or sse2.

With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University

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