[llvm] Use Instruction::hasMetadata (NFC)

Author: kazutakahirata

llvm/lib/IR/ProfDataUtils.cpp

@@ -70,7 +70,7 @@ bool isTargetMD(const MDNode *ProfData, const char *Name, unsigned MinOps) {
 namespace llvm {
 
 bool hasProfMD(const Instruction &I) {
-  return nullptr != I.getMetadata(LLVMContext::MD_prof);
+  return I.hasMetadata(LLVMContext::MD_prof);
 }
 
 bool isBranchWeightMD(const MDNode *ProfileData) {

llvm/lib/Target/AArch64/AArch64ISelLowering.cpp

@@ -15519,7 +15519,7 @@ unsigned AArch64TargetLowering::getNumInterleavedAccesses(
 MachineMemOperand::Flags
 AArch64TargetLowering::getTargetMMOFlags(const Instruction &I) const {
   if (Subtarget->getProcFamily() == AArch64Subtarget::Falkor &&
-      I.getMetadata(FALKOR_STRIDED_ACCESS_MD) != nullptr)
+      I.hasMetadata(FALKOR_STRIDED_ACCESS_MD))
     return MOStridedAccess;
   return MachineMemOperand::MONone;
 }

llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp

@@ -147,8 +147,7 @@ void SIAnnotateControlFlow::initialize(Module &M, const GCNSubtarget &ST) {
 /// Is the branch condition uniform or did the StructurizeCFG pass
 /// consider it as such?
 bool SIAnnotateControlFlow::isUniform(BranchInst *T) {
-  return UA->isUniform(T) ||
-         T->getMetadata("structurizecfg.uniform") != nullptr;
+  return UA->isUniform(T) || T->hasMetadata("structurizecfg.uniform");
 }
 
 /// Is BB the last block saved on the stack ?

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

@@ -1488,7 +1488,7 @@ bool RISCVTargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
     return true;
   };
 
-  if (I.getMetadata(LLVMContext::MD_nontemporal) != nullptr)
+  if (I.hasMetadata(LLVMContext::MD_nontemporal))
     Info.flags |= MachineMemOperand::MONonTemporal;
 
   Info.flags |= RISCVTargetLowering::getTargetMMOFlags(I);