[PATCH] D49592: [AArch64][SVE] Asm: Add MOVPRFX instructions.

Sjoerd Meijer via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Jul 26 09:16:24 PDT 2018


SjoerdMeijer added a subscriber: olista01.
SjoerdMeijer added a comment.

I've been discussing this with @olista01, and we feel this is a bit of a heavy weight approach to build another lookup table and put stuff in AArch64SystemOperands, while all we want to do is to mark an instruction if it can be combined with MOVPRFX. Machine instructions have a flag for Target Specific values (TSFlags), and we think this could be a good solution to mark an instruction if it can be combined. From a quick grep, it looks like we don't use TSFlags yet in AArch64AsmParser, but we do in the ARM backend and ARMAsmParser, so there are some examples there.


https://reviews.llvm.org/D49592





More information about the llvm-commits mailing list