[PATCH] D45817: [PostRASink] extend the live-in check for all aliased registers

[Jun Bum Lim via Phabricator via llvm-commits]

junbuml created this revision.
junbuml added reviewers: thegameg, mcrosier, MatzeB, qcolombet, sebpop, gberry.
Herald added a subscriber: javed.absar.

Extend the live-in check for all aliased registers so that we can
allow sinking Copy instructions even when only implicit def is in successor's
live-in.


https://reviews.llvm.org/D45817

Files:
  lib/CodeGen/MachineSink.cpp
  test/CodeGen/AArch64/post-ra-machine-sink.mir

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