Index: lld/trunk/ELF/Relocations.h
===================================================================
--- lld/trunk/ELF/Relocations.h
+++ lld/trunk/ELF/Relocations.h
@@ -98,7 +98,7 @@
 // RelExpr's as a constant bit mask and test for membership with a
 // couple cheap bitwise operations.
 template <RelExpr... Exprs> bool isRelExprOneOf(RelExpr Expr) {
-  assert(0 <= Expr && Expr < 64 && "RelExpr is too large for 64-bit mask!");
+  assert(0 <= Expr && (int)Expr < 64 && "RelExpr is too large for 64-bit mask!");
   return (uint64_t(1) << Expr) & RelExprMaskBuilder<Exprs...>::build();
 }