From 035e4949c5f3c1dda9a9bf31db3f29201d70a25f Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 30 Dec 2011 22:25:13 +0000
Subject: [PATCH] * vm.c (vm_exec): add guard to prevent optimization for LLVM
 clang.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34162 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 4 ++++
 vm.c      | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 9afdea8d41..fea0b9ac39 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Dec 26 17:20:10 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* vm.c (vm_exec): add guard to prevent optimization for LLVM clang.
+
 Fri Dec 30 17:01:12 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
 
 	* vm_eval.c (rb_f_send): fix iobj.send() documentation issue.
diff --git a/vm.c b/vm.c
index 67ca4393a5..2f38eeef2e 100644
--- a/vm.c
+++ b/vm.c
@@ -1216,6 +1216,9 @@ vm_exec(rb_thread_t *th)
       vm_loop_start:
 	result = vm_exec_core(th, initial);
 	if ((state = th->state) != 0) {
+#ifdef __llvm__
+	    rb_thread_t t = *th;
+#endif
 	    err = result;
 	    th->state = 0;
 	    goto exception_handler;