diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 3d0a2d6..4e8c47c 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2927,7 +2927,7 @@
   // Expand memcpy to a series of load and store ops if the size operand falls
   // below a certain threshold.
   std::vector<MVT> MemOps;
-  uint64_t Limit = -1;
+  uint64_t Limit = uint64_t(-1);
   if (!AlwaysInline)
     Limit = TLI.getMaxStoresPerMemcpy();
   unsigned DstAlign = Align;  // Destination alignment can change.
@@ -2985,7 +2985,7 @@
   // Expand memmove to a series of load and store ops if the size operand falls
   // below a certain threshold.
   std::vector<MVT> MemOps;
-  uint64_t Limit = -1;
+  uint64_t Limit = uint64_t(-1);
   if (!AlwaysInline)
     Limit = TLI.getMaxStoresPerMemmove();
   unsigned DstAlign = Align;  // Destination alignment can change.
diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 6c7b68b..5d765a4 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -385,7 +385,7 @@
   
   // Find the type plane in the module map
   ValueMap::iterator MI = mMap.find(V);
-  return MI == mMap.end() ? -1 : MI->second;
+  return MI == mMap.end() ? -1 : (int)MI->second;
 }
 
 
@@ -397,7 +397,7 @@
   initialize();
   
   ValueMap::iterator FI = fMap.find(V);
-  return FI == fMap.end() ? -1 : FI->second;
+  return FI == fMap.end() ? -1 : (int)FI->second;
 }