[PATCH] D98659: [MachineCopyPropagation] Do more backward copy propagations

[Simon Atanasyan via Phabricator via llvm-commits]

atanasyan added a comment.

In D98659#2631768 <https://reviews.llvm.org/D98659#2631768>, @jrtc27 wrote:

> I don't know why it only affects microMIPS (presumably it does its lowering subtly differently from normal MIPS) but those changes look sensible to me

MIIPS changes look good to me. Using `$gp` register in instructions like `lw $25, %call16(__divti3)($gp)` is a common way. I do not know why initially another register were involved.


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https://reviews.llvm.org/D98659