diff --git a/src/compiler/node-cache.h b/src/compiler/node-cache.h
index a8f9071..7063a3b 100644
--- a/src/compiler/node-cache.h
+++ b/src/compiler/node-cache.h
@@ -63,6 +63,14 @@
 // Various default cache types.
 typedef NodeCache<int32_t> Int32NodeCache;
 typedef NodeCache<int64_t> Int64NodeCache;
+
+// All we want is the numeric value of the RelocInfo::Mode enum. We typedef
+// below to avoid pulling in assembler.h
+typedef char RelocInfoMode;
+typedef std::pair<int32_t, RelocInfoMode> RelocInt32Key;
+typedef std::pair<int64_t, RelocInfoMode> RelocInt64Key;
+typedef NodeCache<RelocInt32Key> RelocInt32NodeCache;
+typedef NodeCache<RelocInt64Key> RelocInt64NodeCache;
 #if V8_HOST_ARCH_32_BIT
 typedef Int32NodeCache IntPtrNodeCache;
 #else