[CodeGen] Use llvm::is_contained (NFC)

Author: kazutakahirata

llvm/lib/CodeGen/MIRCanonicalizerPass.cpp

@@ -198,8 +198,7 @@ static bool rescheduleCanonically(unsigned &PseudoIdempotentInstCount,
 
       if (II->getOperand(i).isReg()) {
         if (!Register::isVirtualRegister(II->getOperand(i).getReg()))
-          if (llvm::find(PhysRegDefs, II->getOperand(i).getReg()) ==
-              PhysRegDefs.end()) {
+          if (!llvm::is_contained(PhysRegDefs, II->getOperand(i).getReg())) {
             continue;
           }
       }

llvm/lib/CodeGen/MachineBasicBlock.cpp

@@ -753,7 +753,7 @@ void MachineBasicBlock::splitSuccessor(MachineBasicBlock *Old,
                                        bool NormalizeSuccProbs) {
   succ_iterator OldI = llvm::find(successors(), Old);
   assert(OldI != succ_end() && "Old is not a successor of this block!");
-  assert(llvm::find(successors(), New) == succ_end() &&
+  assert(!llvm::is_contained(successors(), New) &&
          "New is already a successor of this block!");
 
   // Add a new successor with equal probability as the original one. Note

llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

@@ -9255,8 +9255,7 @@ bool SDNode::areOnlyUsersOf(ArrayRef<const SDNode *> Nodes, const SDNode *N) {
   bool Seen = false;
   for (SDNode::use_iterator I = N->use_begin(), E = N->use_end(); I != E; ++I) {
     SDNode *User = *I;
-    if (llvm::any_of(Nodes,
-                     [&User](const SDNode *Node) { return User == Node; }))
+    if (llvm::is_contained(Nodes, User))
       Seen = true;
     else
       return false;