[BOLT][NFC] Simplify SW::checkStackPointerRestore

[rafauler]

Nice

bolt/lib/Passes/ShrinkWrapping.cpp

void StackLayoutModifier::checkStackPointerRestore(MCInst &Point) {
   StackPointerTracking &SPT = Info.getStackPointerTracking();
   if (!BC.MII->get(Point.getOpcode())
            .hasDefOfPhysReg(Point, BC.MIB->getStackPointer(), *BC.MRI))
     return;
   // Check if the definition of SP comes from FP -- in this case, this
   // value may need to be updated depending on our stack layout changes
   const MCInstrDesc &InstInfo = BC.MII->get(Point.getOpcode());
   unsigned NumDefs = InstInfo.getNumDefs();
-  bool UsesFP = false;
-  for (unsigned I = NumDefs, E = MCPlus::getNumPrimeOperands(Point); I < E;
-       ++I) {
-    MCOperand &Operand = Point.getOperand(I);
-    if (!Operand.isReg())
-      continue;
-    if (Operand.getReg() == BC.MIB->getFramePointer()) {
-      UsesFP = true;
-      break;
-    }
-  }
+  bool UsesFP = llvm::any_of(
+      llvm::drop_begin(MCPlus::primeOperands(Point), NumDefs),
+      [&](MCOperand &Op) {
+        return Op.isReg() && Op.getReg() == BC.MIB->getFramePointer();
+      });
   if (!UsesFP)
     return;
 
   // Setting up evaluation
   int SPVal, FPVal;
   std::tie(SPVal, FPVal) = *SPT.getStateBefore(Point);
   std::pair<MCPhysReg, int64_t> FP;