Kuba (Brecka) Mracek 46eb8d5db5 Implement LLVM IR Witness Method Elimination for Swift witness tables. (#39287) ...

- Witness method calls are done via @llvm.type.checked.load instrinsic call with a type identifier
- Type id of a witness method is the requirement's mangled name
- Witness tables get !type markers that list offsets and type ids of all methods in the wtable
- Added -enable-llvm-wme to enable Witness Method Elimination
- Added IR test and execution test

2021-09-21 06:57:44 -07:00

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