From 3fd90d8aa53d73456b5df476a2bd6cc2caf473c6 Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote <nnethercote@mozilla.com>
Date: Fri, 21 Oct 2016 19:25:53 +1100
Subject: Use `SmallVector` for `TtReader::stack`.

This avoids 800,000 heap allocations when compiling html5ever. It
requires tweaking `SmallVector` a little.
---
 src/libsyntax/lib.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libsyntax/lib.rs')

diff --git a/src/libsyntax/lib.rs b/src/libsyntax/lib.rs
index 6e671c9efdc..169388d72b6 100644
--- a/src/libsyntax/lib.rs
+++ b/src/libsyntax/lib.rs
@@ -35,6 +35,7 @@
 #![feature(rustc_diagnostic_macros)]
 #![feature(specialization)]
 
+extern crate core;
 extern crate serialize;
 extern crate term;
 extern crate libc;
-- 
cgit 1.4.1-3-g733a5