Three main changes:
- The pass createRequestCWrappersPass is renamed as
createLLVMRequestCWrappersPass
- createOptimizeForTargetPass is now under the LLVM namespace. It’s
unclear why the NVVM namespace was used initially, as all passes in
LLVMIR/Transforms/Passes.h consistently reside in the LLVM namespace.
- DuplicateFunctionEliminationPass is now in the func namespace.
This PR fixes multiple bugs in `DuplicateFunctionElimination`.
- Prevents elimination of function declarations.
- Updates all symbol uses to reference unique function representatives.
Fixes#93483.
Deduplicate functions that are equivalent in all aspects but their symbol name.
The pass chooses one representative per equivalence class, erases the remainder, and updates function calls accordingly.
Differential Revision: https://reviews.llvm.org/D144738
