[flang] [llvm] [mlir] [Flang]Fix for changed code at the end of AllocaIP. (PR #92430)

[Tom Eccles via llvm-commits]

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@@ -2137,10 +2137,9 @@ OpenMPIRBuilder::InsertPointTy OpenMPIRBuilder::createReductions(
   unsigned NumReductions = ReductionInfos.size();
   Type *RedArrayTy = ArrayType::get(Builder.getPtrTy(), NumReductions);
   Builder.SetInsertPoint(AllocaIP.getBlock()->getTerminator());
-  //  Builder.restoreIP(AllocaIP);
   Value *RedArray = Builder.CreateAlloca(RedArrayTy, nullptr, "red.array");
 
-  Builder.SetInsertPoint(InsertBlock, InsertBlock->end());
+  Builder.SetInsertPoint(InsertBlock, InsertBlock->begin());
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tblah wrote:

Why did you change this one to go at the beginning when it used to be at the end? Couldn't you set the insertion point just before the terminator instead?

https://github.com/llvm/llvm-project/pull/92430