[PATCH] D69374: [AArch64] Select sadd_sat, uadd_sat, usub_sat and ssub_sat.

Sun Oct 27 14:23:08 PDT 2019

dmgreen added a comment.

Thanks.

In D69374#1720649 <https://reviews.llvm.org/D69374#1720649>, @efriedma wrote:

> Do we care about FPSR.QC?  I remember we had some discussion about it in the past, but I'm not remembering off the top of my head.

I had not seen anything on FPSR.QC for AArch64 (or AArch32 Neon), and was presuming it would be fine to generate them from _sats. Was this discussion on the llvm lists somewhere? The aarch32 ACLE intrinsics tried to make some rules regarding q flags, but that's not something that either clang or gcc honour. And I've not seen anything similar for Neon.

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https://reviews.llvm.org/D69374