From d402d2d0d4c0f8cbccf52c119666b143adcc35b3 Mon Sep 17 00:00:00 2001
From: =?utf8?q?John=20K=C3=A5re=20Alsaker?= <john.kare.alsaker@gmail.com>
Date: Mon, 22 Jan 2018 14:31:23 +0100
Subject: [PATCH] Have worker-local GlobalArenas

---
 src/librustc/ty/context.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/librustc/ty/context.rs b/src/librustc/ty/context.rs
index 0facbc6922a..27cc9514e65 100644
--- a/src/librustc/ty/context.rs
+++ b/src/librustc/ty/context.rs
@@ -58,7 +58,7 @@
                                            StableVec};
 use arena::{TypedArena, SyncDroplessArena};
 use rustc_data_structures::indexed_vec::IndexVec;
-use rustc_data_structures::sync::{Lrc, Lock};
+use rustc_data_structures::sync::{Lrc, Lock, WorkerLocal};
 use std::any::Any;
 use std::borrow::Borrow;
 use std::cmp::Ordering;
@@ -80,14 +80,14 @@
 use hir;
 
 pub struct AllArenas<'tcx> {
-    pub global: GlobalArenas<'tcx>,
+    pub global: WorkerLocal<GlobalArenas<'tcx>>,
     pub interner: SyncDroplessArena,
 }
 
 impl<'tcx> AllArenas<'tcx> {
     pub fn new() -> Self {
         AllArenas {
-            global: GlobalArenas::new(),
+            global: WorkerLocal::new(|_| GlobalArenas::new()),
             interner: SyncDroplessArena::new(),
         }
     }
@@ -854,7 +854,7 @@ fn deref(&self) -> &Self::Target {
 }
 
 pub struct GlobalCtxt<'tcx> {
-    global_arenas: &'tcx GlobalArenas<'tcx>,
+    global_arenas: &'tcx WorkerLocal<GlobalArenas<'tcx>>,
     global_interners: CtxtInterners<'tcx>,
 
     cstore: &'tcx CrateStoreDyn,
-- 
2.44.0