[VPlan] Use VPPhi instead of dyn_cast + opcode check in isPhi (NFC).

fhahn · fhahn · commit 47258ca47085 · 2025-08-05T19:20:12.000+01:00
diff --git a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
@@ -285,9 +285,7 @@ InstructionCost VPRecipeBase::computeCost(ElementCount VF,
 
 bool VPRecipeBase::isPhi() const {
   return (getVPDefID() >= VPFirstPHISC && getVPDefID() <= VPLastPHISC) ||
-         (isa<VPInstruction>(this) &&
-          cast<VPInstruction>(this)->getOpcode() == Instruction::PHI) ||
-         isa<VPIRPhi>(this);
+         isa<VPPhi, VPIRPhi>(this);
 }
 
 bool VPRecipeBase::isScalarCast() const {

Original file line number	Diff line number	Diff line change
`@@ -285,9 +285,7 @@ InstructionCost VPRecipeBase::computeCost(ElementCount VF,`
`285`	`285`
`286`	`286`	`bool VPRecipeBase::isPhi() const {`
`287`	`287`	`return (getVPDefID() >= VPFirstPHISC && getVPDefID() <= VPLastPHISC) \|\|`
`288`		`- (isa<VPInstruction>(this) &&`
`289`		`- cast<VPInstruction>(this)->getOpcode() == Instruction::PHI) \|\|`
`290`		`- isa<VPIRPhi>(this);`
	`288`	`+ isa<VPPhi, VPIRPhi>(this);`
`291`	`289`	`}`
`292`	`290`
`293`	`291`	`bool VPRecipeBase::isScalarCast() const {`