Add more const qualifiers. This fixes build breakage from r59540.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59542 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/SparcInstrInfo.h b/lib/Target/Sparc/SparcInstrInfo.h
index 7c63316..346be95 100644
--- a/lib/Target/Sparc/SparcInstrInfo.h
+++ b/lib/Target/Sparc/SparcInstrInfo.h
@@ -54,14 +54,16 @@
   /// the destination 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 loading from the stack slot.
-  virtual unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const;
+  virtual unsigned isLoadFromStackSlot(const MachineInstr *MI,
+                                       int &FrameIndex) const;
   
   /// isStoreToStackSlot - If the specified machine instruction is a direct
   /// store to a stack slot, return the virtual or physical register number of
   /// 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.
-  virtual unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const;
+  virtual unsigned isStoreToStackSlot(const MachineInstr *MI,
+                                      int &FrameIndex) const;
   
   
   virtual unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,