Note that SrcMgr::SLocEntry's are POD-like, so SmallVector can do a

better job with them. Shaves off 0.7% of -fparse-only time for a
modules test case. Sure makes you wonder...

llvm-svn: 173689

clang/include/clang/Basic/SourceManager.h

@@ -1620,4 +1620,12 @@ public:
 
 }  // end namespace clang
 
+namespace llvm {
+  // SrcMgr::SLocEntry's are POD-like.
+  template<>
+  struct isPodLike<clang::SrcMgr::SLocEntry> {
+    static const bool value = true;
+  };
+}
+
 #endif