* insns.def (onceinlinecache): add exclusion control for a region

  between onceinlinecache and setinlinecache.  [ruby-dev:39768]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27515 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Tue Apr 27 22:55:29 2010  Yusuke Endoh  <[email protected]>
+
+	* insns.def (onceinlinecache): add exclusion control for a region
+	  between onceinlinecache and setinlinecache.  [ruby-dev:39768]
+
 Tue Apr 27 22:40:54 2010  Yusuke Endoh  <[email protected]>
 
 	* iseq.c (set_relation): do not use top_wrapper as bottom of cref,

bootstraptest/test_thread.rb

@@ -443,3 +443,12 @@ def m
     'ok'
   end
 }
+
+assert_equal 'foo', %q{
+  f = proc {|s| /#{ sleep 1; s }/o }
+  [ Thread.new {            f.call("foo"); nil },
+    Thread.new { sleep 0.5; f.call("bar"); nil },
+  ].each {|t| t.join }
+  GC.start
+  f.call.source
+}

insns.def

@@ -1199,10 +1199,17 @@ onceinlinecache
 ()
 (VALUE val)
 {
+  retry:
     if (ic->ic_vmstat) {
 	val = ic->ic_value.value;
 	JUMP(dst);
     }
+    else if (ic->ic_value.value == Qundef)
+    {
+    	RUBY_VM_CHECK_INTS();
+    	rb_thread_schedule();
+	goto retry;
+    }
     else {
 	/* none */
 	ic->ic_value.value = Qundef;