Frame index can be negative.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102577 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCInstrInfo.h b/lib/Target/PowerPC/PPCInstrInfo.h
index 8580943..9fb6e7d 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.h
+++ b/lib/Target/PowerPC/PPCInstrInfo.h
@@ -127,7 +127,7 @@
                                     const TargetRegisterClass *RC) const;
   
   virtual MachineInstr *emitFrameIndexDebugValue(MachineFunction &MF,
-                                                 unsigned FrameIx,
+                                                 int FrameIx,
                                                  uint64_t Offset,
                                                  const MDNode *MDPtr,
                                                  DebugLoc DL) const;