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/CellSPU/SPUInstrInfo.h b/lib/Target/CellSPU/SPUInstrInfo.h
index 9c8bcaf..722e1a1 100644
--- a/lib/Target/CellSPU/SPUInstrInfo.h
+++ b/lib/Target/CellSPU/SPUInstrInfo.h
@@ -43,8 +43,10 @@
                              unsigned& sourceReg,
                              unsigned& destReg) const;
 
-    unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const;
-    unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const;
+    unsigned isLoadFromStackSlot(const MachineInstr *MI,
+                                 int &FrameIndex) const;
+    unsigned isStoreToStackSlot(const MachineInstr *MI,
+                                int &FrameIndex) const;
     
     virtual bool copyRegToReg(MachineBasicBlock &MBB,
                               MachineBasicBlock::iterator MI,