[PATCH] D16907: [X86] Don't zero/sign-extend i1 or i8 return values to 32 bits (PR22532)

Hans Wennborg via llvm-commits llvm-commits at lists.llvm.org
Fri Feb 5 14:18:49 PST 2016

hans added a comment.

In http://reviews.llvm.org/D16907#345277, @spatel wrote:

> cc'ing some Intel folks both for clarity on the ABI doc and for the potential perf impact.

Thanks. I've also raised this on the x86-64-abi mailing list: https://groups.google.com/d/msg/x86-64-abi/E8O33onbnGQ/gecUVGYzDQAJ

But for this specific patch, GCC's and MSVC's behaviours seem very clear, so I'm hoping this one is fairly non-controversial :-)


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