Fix a warning [NFC]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256916 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 5188b84440c5c1f3a89448906620735aa279477f..6b8eeccd173d48ed7ef2759c4fecc12787b47791 100644 (file)
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -881,7 +881,8 @@ MachineInstr::mergeMemRefsWith(const MachineInstr& Other) {
                                   MemBegin);
   MemEnd = std::copy(Other.memoperands_begin(), Other.memoperands_end(),
                      MemEnd);
-  assert(MemEnd - MemBegin == CombinedNumMemRefs && "missing memrefs");
+  assert(MemEnd - MemBegin == (ptrdiff_t)CombinedNumMemRefs &&
+         "missing memrefs");
   
   return std::make_pair(MemBegin, CombinedNumMemRefs);
 }