Fixed build warnings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59621 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PIC16/PIC16InstrInfo.cpp b/lib/Target/PIC16/PIC16InstrInfo.cpp
index d70ebc6..33cb297 100644
--- a/lib/Target/PIC16/PIC16InstrInfo.cpp
+++ b/lib/Target/PIC16/PIC16InstrInfo.cpp
@@ -36,7 +36,7 @@
 /// the source reg along with the FrameIndex of the loaded stack slot.  
 /// If not, return 0.  This predicate must return 0 if the instruction has
 /// any side effects other than storing to the stack slot.
-unsigned PIC16InstrInfo::isStoreToStackSlot(MachineInstr *MI,
+unsigned PIC16InstrInfo::isStoreToStackSlot(const MachineInstr *MI,
                                             int &FrameIndex) const {
   if (MI->getOpcode() == PIC16::movwf 
       && MI->getOperand(0).isReg()
@@ -52,7 +52,7 @@
 /// the dest reg along with the FrameIndex of the stack slot.  
 /// If not, return 0.  This predicate must return 0 if the instruction has
 /// any side effects other than storing to the stack slot.
-unsigned PIC16InstrInfo::isLoadFromStackSlot(MachineInstr *MI,
+unsigned PIC16InstrInfo::isLoadFromStackSlot(const MachineInstr *MI,
                                             int &FrameIndex) const {
   if (MI->getOpcode() == PIC16::movf 
       && MI->getOperand(0).isReg()