[llvm] [VPlan] Introduce ComputeReductionResult VPInstruction opcode. (PR #70253)

[via llvm-commits]

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@@ -3643,169 +3614,6 @@ void InnerLoopVectorizer::fixFixedOrderRecurrence(
   Phi->setName("scalar.recur");
 }
 
-void InnerLoopVectorizer::fixReduction(VPReductionPHIRecipe *PhiR,
-                                       VPTransformState &State) {
-  PHINode *OrigPhi = cast<PHINode>(PhiR->getUnderlyingValue());
-  // Get it's reduction variable descriptor.
-  assert(Legal->isReductionVariable(OrigPhi) &&
-         "Unable to find the reduction variable");
-  const RecurrenceDescriptor &RdxDesc = PhiR->getRecurrenceDescriptor();
-
-  RecurKind RK = RdxDesc.getRecurrenceKind();
-  TrackingVH<Value> ReductionStartValue = RdxDesc.getRecurrenceStartValue();
-  Instruction *LoopExitInst = RdxDesc.getLoopExitInstr();
-  if (auto *I = dyn_cast<Instruction>(&*ReductionStartValue))
-    State.setDebugLocFrom(I->getDebugLoc());
-
-  VPValue *LoopExitInstDef = PhiR->getBackedgeValue();
-
-  // Before each round, move the insertion point right between
-  // the PHIs and the values we are going to write.
-  // This allows us to write both PHINodes and the extractelement
-  // instructions.
-  Builder.SetInsertPoint(LoopMiddleBlock,
-                         LoopMiddleBlock->getFirstInsertionPt());
-
-  State.setDebugLocFrom(LoopExitInst->getDebugLoc());
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ayalz wrote:

This is setting the debug location to that of the Exiting instruction, to generate code inside the middle block below? Fixed by this patch?

https://github.com/llvm/llvm-project/pull/70253