[PATCH] [x86] make reciprocal estimate code generation more flexible

[Sanjay Patel]

Hi Hal -

Thanks for the quick feedback. I'm looking at the PPC variations that gcc supports. I'm thinking that we'll need an enum with bitmasks to cover all the potential variations. Just making sure that I'm not going into the weeds...

Also (if maintaining compatibility with gcc is a goal), we'll still need to accept and process different flags per arch.


http://reviews.llvm.org/D8982

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