[PATCH] D28016: [Builtins] [ARM] Adding Thumb1 support for fcmp

[Weiming Zhao via Phabricator via llvm-commits]

weimingz added a comment.

Hi Renato,

I agree with your comments on msr/mrs. It's ugly and may only work for armv6m. 
The nasty thing is I can't find a way to convert "mvn r0, r1, asr #31" to Thumb1 without clobbering the apsr.

Any ideas? Otherwise, I think we have to just use the C version.


https://reviews.llvm.org/D28016