[PATCH] D63972: [PowerPC] Do the Early Return for the li and unconditional branch

[Zhang Kang via Phabricator via llvm-commits]

ZhangKang added a comment.

@efriedma , I have updated this patch, to avoid call the `tail-duplication` again after `block-placement` pass. 
In the end of `block-placement` I will  do the optimization for `unconditonal branch`, this pattern may created by the `block-placement` pass.


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  https://reviews.llvm.org/D63972/new/

https://reviews.llvm.org/D63972