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resf2
2010 Apr 09
0
[LLVMdev] compiler-rt's arm vfp o<= implementation
...rm.com> wrote:
> movhi means mov if unsigned Higher
>
> movls means mov if unsigned Lower or Same
>
>
>
> so depending on the comparison result r0 holds 1 or 0
>
Thanks. Now that I understand the assembly, I think there's another problem.
libgcc's definition of lesf2 is actually "1-(a<=b)". Source:
http://www.google.com/codesearch/p?hl=en#ulemn8tW-hg/pub/gcc/releases/gcc-2.95.2/gcc-core-2.95.2.tar.gz%7CInAiOEw9K4g/gcc-2.95.2/gcc/libgcc1.c&q=libgcc1%20lesf2
Shih-wei wrote a patch which reverses the meaning of the predicate
(attached) and this w...