Changeset 96738 in webkit for trunk/Source/JavaScriptCore/ChangeLog

Timestamp:

Oct 5, 2011, 12:07:18 PM (14 years ago)

Author:

[email protected]

Message:

Add rudimentary filtering to write barriers
​https://bugs.webkit.org/show_bug.cgi?id=69392

Reviewed by Filip Pizlo.

../../../../Volumes/Data/git/WebKit/OpenSource/Source/JavaScriptCore:

Add approximate filtering for write barriers based on the
target's mark bit. Also add some macros to support dumping
GC phase timings.

• dfg/DFGJITCodeGenerator.cpp:

(JSC::DFG::JITCodeGenerator::markCellCard):

• heap/Heap.cpp:

(JSC::GCTimer::GCTimerScope::GCTimerScope):
(JSC::GCTimer::GCTimerScope::~GCTimerScope):
(JSC::Heap::markRoots):
(JSC::Heap::collect):

Add phase timing information.

• heap/MarkedBlock.h:

(JSC::MarkedBlock::offsetOfMarks):
(JSC::MarkedBlock::gatherDirtyCells):

• jit/JITPropertyAccess.cpp:

(JSC::JIT::emitWriteBarrier):

../../../../Volumes/Data/git/WebKit/OpenSource/Tools:

When we're recording gc phase times Heap.o picks up
some exit time destructors, so we'll just ignore Heap.o
in this check.

• Scripts/check-for-exit-time-destructors:

File:

• trunk/Source/JavaScriptCore/ChangeLog (modified) (1 diff)

trunk/Source/JavaScriptCore/ChangeLog

@@ +1 @@
+2011-10-04  Oliver Hunt  <[email protected]>
+
+        Add rudimentary filtering to write barriers
+        https://bugs.webkit.org/show_bug.cgi?id=69392
+
+        Reviewed by Filip Pizlo.
+
+        Add approximate filtering for write barriers based on the
+        target's mark bit.  Also add some macros to support dumping
+        GC phase timings.
+
+        * dfg/DFGJITCodeGenerator.cpp:
+        (JSC::DFG::JITCodeGenerator::markCellCard):
+        * heap/Heap.cpp:
+        (JSC::GCTimer::GCTimerScope::GCTimerScope):
+        (JSC::GCTimer::GCTimerScope::~GCTimerScope):
+        (JSC::Heap::markRoots):
+        (JSC::Heap::collect):
+           Add phase timing information.
+        * heap/MarkedBlock.h:
+        (JSC::MarkedBlock::offsetOfMarks):
+        (JSC::MarkedBlock::gatherDirtyCells):
+        * jit/JITPropertyAccess.cpp:
+        (JSC::JIT::emitWriteBarrier):
+
 2011-10-05  Anders Carlsson  <[email protected]>