================
@@ -982,6 +994,65 @@ void VPlan::updateDominatorTree(DominatorTree *DT,
BasicBlock *LoopHeaderBB,
assert(DT->verify(DominatorTree::VerificationLevel::Fast));
}
+static void remapVPValues(VPBasicBlock *OldBB, VPBasicBlock *NewBB,
+ DenseMap<VPValue *, VPValue *> &Old2NewVPValues,
+ bool Full = false) {
+ for (const auto &[OldR, NewR] : zip(*OldBB, *NewBB)) {
+ for (unsigned I = 0, E = NewR.getNumOperands(); I != E; ++I) {
+ VPValue *NewOp = Old2NewVPValues.lookup(OldR.getOperand(I));
+ if (!Full)
+ continue;
+ NewR.setOperand(I, NewOp);
+ }
+ for (const auto &[OldV, NewV] :
+ zip(OldR.definedValues(), NewR.definedValues()))
+ Old2NewVPValues[OldV] = NewV;
+ }
+}
+
+VPlan *VPlan::clone() {
+ DenseMap<VPBlockBase *, VPBlockBase *> Old2New;
+ DenseMap<VPValue *, VPValue *> Old2NewVPValues;
+
+ auto *NewPlan = new VPlan();
+ SmallVector<VPValue *, 16> NewLiveIns;
+ for (VPValue *LI : VPLiveInsToFree) {
+ VPValue *NewLI = new VPValue(LI->getLiveInIRValue());
+ NewPlan->VPLiveInsToFree.push_back(NewLI);
+ Old2NewVPValues[LI] = NewLI;
+ }
+
+ Old2NewVPValues[&VectorTripCount] = &NewPlan->VectorTripCount;
+ Old2NewVPValues[&VFxUF] = &NewPlan->VFxUF;
+ if (BackedgeTakenCount) {
+ Old2NewVPValues[BackedgeTakenCount] = new VPValue();
+ NewPlan->BackedgeTakenCount = Old2NewVPValues[BackedgeTakenCount];
+ }
+
+ auto NewPH = cast<VPBasicBlock>(Preheader->clone());
----------------
fhahn wrote:
Renamed, thanks!
https://github.com/llvm/llvm-project/pull/73158
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