[PATCH] D150388: [CodeGen]Allow targets to use target specific COPY instructions for live range splitting

Tue Jul 18 18:23:34 PDT 2023

arsenm added a comment.

In D150388#4512745 <https://reviews.llvm.org/D150388#4512745>, @alexfh wrote:

> I'm not sure this llvm-reduce'd IR snippet retains the essence of the problem, but maybe you could look at it and see if there's an obvious issue with the codegen?

I'll look more tomorrow but this diff is fully the isCopyInstrImpl handling some identity copies. The diff disappers without the x86 implementation. It triggers for identity copies only

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  https://reviews.llvm.org/D150388/new/

https://reviews.llvm.org/D150388