Add missing const qualifiers.

llvm-svn: 37342
diff --git a/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index 7977555..f9d760b 100644
--- a/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -245,8 +245,9 @@
 /// getInstrPredicate - If instruction is predicated, returns its predicate
 /// condition, otherwise returns AL.
 static ARMCC::CondCodes getInstrPredicate(MachineInstr *MI) {
-  MachineOperand *PredMO = MI->findFirstPredOperand();
-  return PredMO ? (ARMCC::CondCodes)PredMO->getImmedValue() : ARMCC::AL;
+  int PIdx = MI->findFirstPredOperandIdx();
+  return PIdx == -1 ? ARMCC::AL
+                    : (ARMCC::CondCodes)MI->getOperand(PIdx).getImmedValue();
 }
 
 static inline bool isMatchingDecrement(MachineInstr *MI, unsigned Base,