Erik Eckstein ec3d9dd9c7 Optimizer: add the ObjCBridgingOptimization to optimize ObjectiveC bridging operations. ...

Removes redundant ObjectiveC <-> Swift bridging calls.
Basically, if a value is bridged from ObjectiveC to Swift an then back to ObjectiveC again, then just re-use the original ObjectiveC value.

Also in this commit: add an additional DCE pass before ownership elimination. It can cleanup dead code which is left behind by the ObjCBridgingOptimization.

rdar://89987440

2022-06-08 22:51:57 +02:00

5.0 KiB

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