[Gardening] Pull Out Callee Variable

Author: CodaFi

lib/SILOptimizer/Mandatory/DiagnoseInfiniteRecursion.cpp

@@ -52,14 +52,15 @@ static bool hasRecursiveCallInPath(SILBasicBlock &Block,
 
     if (FullApplySite FAI = FullApplySite::isa(&I)) {
       // Don't touch dynamic dispatch.
-      if (isa<SuperMethodInst>(FAI.getCallee()) ||
-          isa<ObjCSuperMethodInst>(FAI.getCallee()) ||
-          isa<ObjCMethodInst>(FAI.getCallee())) {
+      const auto callee = FAI.getCallee();
+      if (isa<SuperMethodInst>(callee) ||
+          isa<ObjCSuperMethodInst>(callee) ||
+          isa<ObjCMethodInst>(callee)) {
         continue;
       }
 
       auto &M = FAI.getModule();
-      if (auto *CMI = dyn_cast<ClassMethodInst>(FAI.getCallee())) {
+      if (auto *CMI = dyn_cast<ClassMethodInst>(callee)) {
         auto ClassType = CMI->getOperand()->getType().getASTType();
 
         // FIXME: If we're not inside the module context of the method,
@@ -93,7 +94,7 @@ static bool hasRecursiveCallInPath(SILBasicBlock &Block,
         continue;
       }
 
-      if (auto *WMI = dyn_cast<WitnessMethodInst>(FAI.getCallee())) {
+      if (auto *WMI = dyn_cast<WitnessMethodInst>(callee)) {
         SILFunction *F;
         SILWitnessTable *WT;