How to check if an instruction is a PHI instruction in LLVM IR

Question

I am writing an LLVM pass. For an instruction (llvm :: Class Class), how can I check if an instruction is a PHI instruction?

Answer 1

I have found a solution. You can check the PHI node like this, isa<PHINode>(inst) .

Answer 2

  Instruction* I; if(I->getOpcode()==Instruction::PHI){ //code }