Changeset 155457 in webkit

Timestamp:

Sep 10, 2013, 11:29:45 AM (13 years ago)

Author:

fpizlo@apple.com

Message:

Don't GC while in the OSR-triggered jettison code
​https://bugs.webkit.org/show_bug.cgi?id=121106

Reviewed by Mark Hahnenberg.

• dfg/DFGOperations.cpp:

Location:

trunk/Source/JavaScriptCore

Files:

• ChangeLog (modified) (1 diff)
• dfg/DFGOperations.cpp (modified) (1 diff)

trunk/Source/JavaScriptCore/ChangeLog

@@ +1 @@
+2013-09-10  Filip Pizlo  <fpizlo@apple.com>
+
+        Don't GC while in the OSR-triggered jettison code
+        https://bugs.webkit.org/show_bug.cgi?id=121106
+
+        Reviewed by Mark Hahnenberg.
+
+        * dfg/DFGOperations.cpp:
+
 2013-09-10  Filip Pizlo  <fpizlo@apple.com>
 

trunk/Source/JavaScriptCore/dfg/DFGOperations.cpp

@@ -1985 +1985 @@
 extern "C" void DFG_OPERATION triggerReoptimizationNow(CodeBlock* codeBlock)
 {
+    // It's sort of preferable that we don't GC while in here. Anyways, doing so wouldn't
+    // really be profitable.
+    DeferGCForAWhile deferGC(codeBlock->vm()->heap);
+    
     if (Options::verboseOSR())
         dataLog(*codeBlock, ": Entered reoptimize\n");