[PATCH] [X86] ABI breaking change for x86-32: pass 3 vector arguments in-register instead of 4, except on Darwin

[Michael Kuperstein]

Thanks, Reid!

And yes, that's why I added Joerg. 
(I recall talking to him about this on IRC when this originally came up in December, and he did not object to making the change on BSD, but I may be mis-remembering...)


http://reviews.llvm.org/D9644

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