[VPlan] Use VPDef for VPWidenGEPRecipe.

This patch turns updates VPWidenGEPRecipe to manage the value it defines
using VPDef. The VPValue is used  during VPlan construction and
codegeneration instead of the plain IR reference where possible.

Reviewed By: gilr

Differential Revision: https://reviews.llvm.org/D90561

diff --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index 3c42f47..2b3808b 100644 (file)
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -914,21 +914,25 @@ public:
 };
 
 /// A recipe for handling GEP instructions.
-class VPWidenGEPRecipe : public VPRecipeBase, public VPValue, public VPUser {
+class VPWidenGEPRecipe : public VPRecipeBase,
+                         public VPDef,
+                         public VPUser,
+                         public VPValue {
   bool IsPtrLoopInvariant;
   SmallBitVector IsIndexLoopInvariant;
 
 public:
   template <typename IterT>
   VPWidenGEPRecipe(GetElementPtrInst *GEP, iterator_range<IterT> Operands)
-      : VPRecipeBase(VPRecipeBase::VPWidenGEPSC), VPValue(VPWidenGEPSC, GEP),
-        VPUser(Operands), IsIndexLoopInvariant(GEP->getNumIndices(), false) {}
+      : VPRecipeBase(VPRecipeBase::VPWidenGEPSC), VPUser(Operands),
+        VPValue(VPWidenGEPSC, GEP, this),
+        IsIndexLoopInvariant(GEP->getNumIndices(), false) {}
 
   template <typename IterT>
   VPWidenGEPRecipe(GetElementPtrInst *GEP, iterator_range<IterT> Operands,
                    Loop *OrigLoop)
-      : VPRecipeBase(VPRecipeBase::VPWidenGEPSC),
-        VPValue(VPValue::VPVWidenGEPSC, GEP), VPUser(Operands),
+      : VPRecipeBase(VPRecipeBase::VPWidenGEPSC), VPUser(Operands),
+        VPValue(VPValue::VPVWidenGEPSC, GEP, this),
         IsIndexLoopInvariant(GEP->getNumIndices(), false) {
     IsPtrLoopInvariant = OrigLoop->isLoopInvariant(GEP->getPointerOperand());
     for (auto Index : enumerate(GEP->indices()))