Eli Friedman 1a78b0bd38 [MachineOutliner] Teach outliner to set live-ins ...

Preserving liveness can be useful even late in the pipeline, if we're
doing substantial optimization work afterwards. (See, for example,
D76065.) Teach MachineOutliner how to correctly set live-ins on the
basic block in outlined functions.

Differential Revision: https://reviews.llvm.org/D78605

2020-04-22 14:19:26 -07:00

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