[flang-commits] [flang] [mlir] [flang][OpenMP] Fix reduction init region block management (PR #122079)

[Kareem Ergawy via flang-commits]

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@@ -1039,9 +1039,6 @@ initReductionVars(OP op, ArrayRef<BlockArgument> reductionArgs,
   if (op.getNumReductionVars() == 0)
     return success();
 
-  llvm::IRBuilderBase::InsertPointGuard guard(builder);
-
-  builder.SetInsertPoint(latestAllocaBlock->getTerminator());
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ergawy wrote:

Added some docs to explain the pre- and post-conditions of the functions. Let me know if something needs to be clarified further.

https://github.com/llvm/llvm-project/pull/122079