From aafa4ebff234a4cdadf00c893369edb4b4a4ab38 Mon Sep 17 00:00:00 2001
From: ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 29 Oct 2017 13:50:24 +0000
Subject: [PATCH] use `GET_EC()`.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60543 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 gc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/gc.c b/gc.c
index f0a43d15c1..5793d64124 100644
--- a/gc.c
+++ b/gc.c
@@ -4796,8 +4796,8 @@ static void
 gc_mark_roots(rb_objspace_t *objspace, const char **categoryp)
 {
     struct gc_list *list;
-    rb_thread_t *th = GET_THREAD();
-    rb_execution_context_t *ec = th->ec;
+    rb_execution_context_t *ec = GET_EC();
+    rb_vm_t *vm = rb_ec_vm_ptr(ec);
 
 #if PRINT_ROOT_TICKS
     tick_t start_tick = tick();
@@ -4837,14 +4837,14 @@ gc_mark_roots(rb_objspace_t *objspace, const char **categoryp)
 
     MARK_CHECKPOINT("vm");
     SET_STACK_END;
-    rb_vm_mark(th->vm);
-    if (th->vm->self) gc_mark(objspace, th->vm->self);
+    rb_vm_mark(vm);
+    if (vm->self) gc_mark(objspace, vm->self);
 
     MARK_CHECKPOINT("finalizers");
     mark_tbl(objspace, finalizer_table);
 
     MARK_CHECKPOINT("machine_context");
-    mark_current_machine_context(objspace, th->ec);
+    mark_current_machine_context(objspace, ec);
 
     MARK_CHECKPOINT("encodings");
     rb_gc_mark_encodings();