[PATCH] D156345: RegisterCoalescer: Add implicit-def of super register when coalescing SUBREG_TO_REG

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet added a comment.

> This does not yet fix the regression. The isCopyInstr handling needs to start handling implicit-defs on any instruction.

What do you mean here?

In my mind, if we have implicit defs on a copy, then we should probably not consider the related instruction as a copy to begin with.


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  https://reviews.llvm.org/D156345/new/

https://reviews.llvm.org/D156345