[VPlan] Remove unneeded Plan arg from getVPValueOrAddLiveIn (NFC).

The helper can simply use VPRecipeBuilder::Plan.

Author: fhahn

llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

@@ -7904,7 +7904,7 @@ void EpilogueVectorizerEpilogueLoop::printDebugTracesAtEnd() {
 iterator_range<mapped_iterator<Use *, std::function<VPValue *(Value *)>>>
 VPRecipeBuilder::mapToVPValues(User::op_range Operands) {
   std::function<VPValue *(Value *)> Fn = [this](Value *Op) {
-    return getVPValueOrAddLiveIn(Op, Plan);
+    return getVPValueOrAddLiveIn(Op);
   };
   return map_range(Operands, Fn);
 }
@@ -7920,7 +7920,7 @@ void VPRecipeBuilder::createSwitchEdgeMasks(SwitchInst *SI) {
   // Create masks where the terminator in Src is a switch. We create mask for
   // all edges at the same time. This is more efficient, as we can create and
   // collect compares for all cases once.
-  VPValue *Cond = getVPValueOrAddLiveIn(SI->getCondition(), Plan);
+  VPValue *Cond = getVPValueOrAddLiveIn(SI->getCondition());
   BasicBlock *DefaultDst = SI->getDefaultDest();
   MapVector<BasicBlock *, SmallVector<VPValue *>> Dst2Compares;
   for (auto &C : SI->cases()) {
@@ -7931,7 +7931,7 @@ void VPRecipeBuilder::createSwitchEdgeMasks(SwitchInst *SI) {
     if (Dst == DefaultDst)
       continue;
     auto I = Dst2Compares.insert({Dst, {}});
-    VPValue *V = getVPValueOrAddLiveIn(C.getCaseValue(), Plan);
+    VPValue *V = getVPValueOrAddLiveIn(C.getCaseValue());
     I.first->second.push_back(Builder.createICmp(CmpInst::ICMP_EQ, Cond, V));
   }
 
@@ -7994,7 +7994,7 @@ VPValue *VPRecipeBuilder::createEdgeMask(BasicBlock *Src, BasicBlock *Dst) {
   if (OrigLoop->isLoopExiting(Src))
     return EdgeMaskCache[Edge] = SrcMask;
 
-  VPValue *EdgeMask = getVPValueOrAddLiveIn(BI->getCondition(), Plan);
+  VPValue *EdgeMask = getVPValueOrAddLiveIn(BI->getCondition());
   assert(EdgeMask && "No Edge Mask found for condition");
 
   if (BI->getSuccessor(0) != Dst)
@@ -8605,7 +8605,7 @@ static MapVector<PHINode *, VPValue *> collectUsersInExitBlock(
   for (PHINode &ExitPhi : ExitBB->phis()) {
     Value *IncomingValue =
         ExitPhi.getIncomingValueForBlock(ExitingBB);
-    VPValue *V = Builder.getVPValueOrAddLiveIn(IncomingValue, Plan);
+    VPValue *V = Builder.getVPValueOrAddLiveIn(IncomingValue);
     // Exit values for inductions are computed and updated outside of VPlan and
     // independent of induction recipes.
     // TODO: Compute induction exit values in VPlan, use VPLiveOuts to update

llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h

@@ -168,7 +168,7 @@ class VPRecipeBuilder {
   iterator_range<mapped_iterator<Use *, std::function<VPValue *(Value *)>>>
   mapToVPValues(User::op_range Operands);
 
-  VPValue *getVPValueOrAddLiveIn(Value *V, VPlan &Plan) {
+  VPValue *getVPValueOrAddLiveIn(Value *V) {
     if (auto *I = dyn_cast<Instruction>(V)) {
       if (auto *R = Ingredient2Recipe.lookup(I))
         return R->getVPSingleValue();