Changeset 190589 in webkit for trunk/Source/JavaScriptCore/jit/JITToDFGDeferredCompilationCallback.cpp

Timestamp:

Oct 5, 2015, 4:31:53 PM (10 years ago)

Author:

[email protected]

Message:

Unreviewed, rolling back in r190450
​https://bugs.webkit.org/show_bug.cgi?id=149727

The cause of the leak was VM shutdown, which happens in workers.

The fix is for CodeBlockSet to participate in lastChanceToFinalize,
since it's responsible for running CodeBlock destructors.

I ran the leaks tests locally and did not see any CodeBlock-related leaks.

Restored changesets:

"CodeBlock should be a GC object"
​https://bugs.webkit.org/show_bug.cgi?id=149727
​http://trac.webkit.org/changeset/190450

File:

• trunk/Source/JavaScriptCore/jit/JITToDFGDeferredCompilationCallback.cpp (modified) (3 diffs)

trunk/Source/JavaScriptCore/jit/JITToDFGDeferredCompilationCallback.cpp

@@ -44 +44 @@
 
 void JITToDFGDeferredCompilationCallback::compilationDidBecomeReadyAsynchronously(
-    CodeBlock* codeBlock)
+    CodeBlock* codeBlock, CodeBlock* profiledDFGCodeBlock)
 {
+    ASSERT_UNUSED(profiledDFGCodeBlock, !profiledDFGCodeBlock);
     ASSERT(codeBlock->alternative()->jitType() == JITCode::BaselineJIT);
     
@@ -55 +56 @@
 
 void JITToDFGDeferredCompilationCallback::compilationDidComplete(
-    CodeBlock* codeBlock, CompilationResult result)
+    CodeBlock* codeBlock, CodeBlock* profiledDFGCodeBlock, CompilationResult result)
 {
+    ASSERT(!profiledDFGCodeBlock);
     ASSERT(codeBlock->alternative()->jitType() == JITCode::BaselineJIT);
     
@@ -67 +69 @@
     codeBlock->alternative()->setOptimizationThresholdBasedOnCompilationResult(result);
 
-    DeferredCompilationCallback::compilationDidComplete(codeBlock, result);
+    DeferredCompilationCallback::compilationDidComplete(codeBlock, profiledDFGCodeBlock, result);
 }