!fixup Split changes of VPWidenPHIRecipe.

Author: ElvisWang123

llvm/lib/Transforms/Vectorize/VPlan.h

@@ -2312,8 +2312,8 @@ class VPWidenPHIRecipe : public VPSingleDefRecipe {
 
 public:
   /// Create a new VPWidenPHIRecipe for \p Phi with start value \p Start.
-  VPWidenPHIRecipe(PHINode *Phi, VPValue *Start = nullptr, DebugLoc DL = {})
-      : VPSingleDefRecipe(VPDef::VPWidenPHISC, ArrayRef<VPValue *>(), Phi, DL) {
+  VPWidenPHIRecipe(PHINode *Phi, VPValue *Start = nullptr)
+      : VPSingleDefRecipe(VPDef::VPWidenPHISC, ArrayRef<VPValue *>(), Phi) {
     if (Start)
       addOperand(Start);
   }

llvm/lib/Transforms/Vectorize/VPlanHCFGBuilder.cpp

@@ -308,7 +308,7 @@ void PlainCFGBuilder::createVPInstructionsForVPBB(VPBasicBlock *VPBB,
       // Phi node's operands may have not been visited at this point. We create
       // an empty VPInstruction that we will fix once the whole plain CFG has
       // been built.
-      NewVPV = new VPWidenPHIRecipe(Phi, nullptr, Phi->getDebugLoc());
+      NewVPV = new VPWidenPHIRecipe(Phi, nullptr);
       VPBB->appendRecipe(cast<VPWidenPHIRecipe>(NewVPV));
       PhisToFix.push_back(Phi);
     } else {

llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp

@@ -3457,7 +3457,6 @@ void VPWidenPHIRecipe::execute(VPTransformState &State) {
   assert(EnableVPlanNativePath &&
          "Non-native vplans are not expected to have VPWidenPHIRecipes.");
 
-  State.setDebugLocFrom(getDebugLoc());
   Value *Op0 = State.get(getOperand(0));
   Type *VecTy = Op0->getType();
   Value *VecPhi = State.Builder.CreatePHI(VecTy, 2, "vec.phi");

llvm/test/Transforms/LoopVectorize/dbg-outer-loop-vect.ll

@@ -15,8 +15,8 @@ define void @foo(ptr %h) !dbg !4 {
 ; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[FOR_COND_CLEANUP32:%.*]] ]
 ; CHECK-NEXT:    br label [[FOR_COND5_PREHEADER1:%.*]], !dbg [[DBG21]]
 ; CHECK:       for.cond5.preheader1:
-; CHECK-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ zeroinitializer, [[VECTOR_BODY]] ], [ [[TMP4:%.*]], [[FOR_COND5_PREHEADER1]] ]
-; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr i32, ptr [[H]], <4 x i64> [[VEC_PHI]]
+; CHECK-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ zeroinitializer, [[VECTOR_BODY]] ], [ [[TMP4:%.*]], [[FOR_COND5_PREHEADER1]] ], !dbg [[DBG21]]
+; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr i32, ptr [[H]], <4 x i64> [[VEC_PHI]], !dbg [[DBG21]]
 ; CHECK-NEXT:    call void @llvm.masked.scatter.v4i32.v4p0(<4 x i32> zeroinitializer, <4 x ptr> [[TMP0]], i32 4, <4 x i1> splat (i1 true)), !dbg [[DBG22:![0-9]+]]
 ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr i32, <4 x ptr> [[TMP0]], i64 1, !dbg [[DBG22]]
 ; CHECK-NEXT:    call void @llvm.masked.scatter.v4i32.v4p0(<4 x i32> splat (i32 1), <4 x ptr> [[TMP1]], i32 4, <4 x i1> splat (i1 true)), !dbg [[DBG22]]