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

[Zhiwei Chen via Phabricator via llvm-commits]

condy added a comment.

In D98659#2633657 <https://reviews.llvm.org/D98659#2633657>, @lkail wrote:

> In D98659#2632859 <https://reviews.llvm.org/D98659#2632859>, @yshui wrote:
>
>> Since this patch already changed output of many test cases, do we still need a test case specifically for this patch?
>
> You'd better add some mir tests to demonstrate the idea, w/o `-g`.

A piece of tests can be copied from https://reviews.llvm.org/D98401 @yshui


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  https://reviews.llvm.org/D98659/new/

https://reviews.llvm.org/D98659