refactor

Author: mihajlovicana

llvm/lib/Target/AMDGPU/AMDGPUInsertDelayAlu.cpp

@@ -366,8 +366,10 @@ class AMDGPUInsertDelayAlu : public MachineFunctionPass {
       DelayType Type = getDelayType(MI.getDesc().TSFlags);
 
       if (SII->isSALU(MI.getOpcode())) {
-        if (State.find(lastSGPRfromVALU) != State.end()){
-          State.advanceByNum(SALU, State[lastSGPRfromVALU].VALUCycles, State[lastSGPRfromVALU].VALUNum);
+        auto It = State.find(lastSGPRfromVALU);
+        if (It != State.end()) {
+          DelayInfo Info = It->getSecond();
+          State.advanceByNum(VALU, Info.VALUCycles, Info.VALUNum);
           lastSGPRfromVALU = 0;
         }
       }