Amara Emerson e5784ef8f6 [GlobalISel] Enable usage of BranchProbabilityInfo in IRTranslator. ...

We weren't using this before, so none of the MachineFunction CFG edges had the
branch probability information added. As a result, block placement later in the
pipeline was flying blind.

This is enabled only with optimizations enabled like SelectionDAG.

Differential Revision: https://reviews.llvm.org/D86824

2020-09-09 14:31:12 -07:00

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