[PATCH] D25485: [x86] use 'neg' for negation of bool
Simon Dardis via llvm-commits
llvm-commits at lists.llvm.org
Thu Oct 13 08:23:33 PDT 2016
sdardis added a comment.
We don't have a negate instruction, we use "nor $dst, $src, $zero" instead. "nor" present in all our ISAs except mips16 which has an actual negate instruction.
Did that regression hit general MIPS code or just microMIPS? It's possible that we have a missing pattern for microMIPS in that case. I'll give this patch a whirl.
https://reviews.llvm.org/D25485
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