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3bba7caacc9227991b9d0bced55eda1d489dfb10
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2 Commits

Author SHA1 Message Date
Erik Eckstein
3bba7caacc Swift SIL: add var Function.instructions 
To be used to iterate over all instructions in a function without the need of two loops - one for blocks and one for instructions.
 2022-08-24 17:54:46 +02:00
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