[PATCH] D38235: [UnreachableBlockElim] Use COPY if PHI input is undef

[Mikael Holmén via Phabricator via llvm-commits]

uabelho added a comment.

In https://reviews.llvm.org/D38235#884338, @kparzysz wrote:

> Looks good.  Thanks.
>
> Could you change the testcase to MIR and only run the unreachable block elimination?


Do you prefer the new version?


https://reviews.llvm.org/D38235