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[DAGCombiner] Remove some calls to AddToWorklist that should be unnecessary.

Description

[DAGCombiner] Remove some calls to AddToWorklist that should be unnecessary.

The DAGCombiner has a system for ensuring all nodes are visited. It doesn't require an AddToWorkList for every node that is created by a combine.

Details

Committed
ctopperJul 26 2018, 3:40 PM
Parents
rL338078: Fix -Wsign-compare warning.
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