Use the appropriate unsigned int type for the offset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186015 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp
index cd8b664..58d00da 100644
--- a/lib/CodeGen/RegAllocFast.cpp
+++ b/lib/CodeGen/RegAllocFast.cpp
@@ -299,7 +299,7 @@
       MachineInstr *DBG = LRIDbgValues[li];
       const MDNode *MDPtr = DBG->getOperand(2).getMetadata();
       bool IsIndirect = DBG->getOperand(1).isImm(); // Register-indirect value?
-      int64_t Offset = IsIndirect ? DBG->getOperand(1).getImm() : 0;
+      uint64_t Offset = IsIndirect ? DBG->getOperand(1).getImm() : 0;
       DebugLoc DL;
       if (MI == MBB->end()) {
         // If MI is at basic block end then use last instruction's location.
@@ -856,7 +856,8 @@
             }
             else {
               // Modify DBG_VALUE now that the value is in a spill slot.
-              int64_t Offset = MI->getOperand(1).getImm();
+              bool IsIndirect = MI->getOperand(1).isImm();
+              uint64_t Offset = IsIndirect ? MI->getOperand(1).getImm() : 0;
               const MDNode *MDPtr =
                 MI->getOperand(MI->getNumOperands()-1).getMetadata();
               DebugLoc DL = MI->getDebugLoc();