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

Description

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

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

Details

Committed
junbumlApr 27 2018, 12:59 PM
Parents
rL331071: [globalisel][legalizerinfo] Add support for legalization based on theā€¦
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