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0e70e0edd5
This reapplies PR #118463 after introducing a fix for a bug uncovere by the test suite. The problem is that when the alloca block is terminated with a conditional branch, this violates a pre-condition of `allocatePrivateVars` (which assumes the alloca block has a single successor). This new PR includes a test that reproduces the issue. Extend MLIR to LLVM lowering by adding support for `omp.wsloop` for delayed privatization. This also refactors a few bit of code to isolate the logic needed for `firstprivate` initialization in a shared util that can be used across constructs that need it. The same is done for `dealloc` regions.
Multi-Level Intermediate Representation
See https://mlir.llvm.org/ for more information.