================
@@ -4442,6 +4495,29 @@ void VPReductionPHIRecipe::print(raw_ostream &O, const
Twine &Indent,
}
#endif
+void VPMonotonicPHIRecipe::execute(VPTransformState &State) {
+ assert(getParent()->getPlan()->getUF() == 1 && "Expected unroll factor 1.");
+ Value *Start = getStartValue()->getLiveInIRValue();
+ BasicBlock *VectorPH =
+ State.CFG.VPBB2IRBB.at(getParent()->getCFGPredecessor(0));
+ PHINode *MonotonicPHI =
+ State.Builder.CreatePHI(Start->getType(), 2, "monotonic.iv");
+ MonotonicPHI->addIncoming(Start, VectorPH);
+ MonotonicPHI->setDebugLoc(getDebugLoc());
+ State.set(this, MonotonicPHI, /*IsScalar=*/true);
+}
----------------
fhahn wrote:
This looks just like a plain VPWidenPHI, can you use that here or do we need a
new recipe? If so, please document the rational, probably good to do in the
description
https://github.com/llvm/llvm-project/pull/140723
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