Title: [209795] trunk/Source
Revision
209795
Author
[email protected]
Date
2016-12-14 01:35:18 -0800 (Wed, 14 Dec 2016)

Log Message

MarkedBlock::marksConveyLivenessDuringMarking should take into account collection scope
https://bugs.webkit.org/show_bug.cgi?id=165741

Unreviewed rollout due to performance regression.

Source/_javascript_Core:

* CMakeLists.txt:
* _javascript_Core.xcodeproj/project.pbxproj:
* heap/CellContainer.cpp: Removed.
* heap/CellContainer.h:
* heap/MarkedAllocator.cpp:
(JSC::MarkedAllocator::addBlock):
(JSC::MarkedAllocator::removeBlock):
(JSC::MarkedAllocator::dumpBits):
* heap/MarkedAllocator.h:
(JSC::MarkedAllocator::forEachBitVector):
(JSC::MarkedAllocator::forEachBitVectorWithName):
* heap/MarkedBlock.cpp:
(JSC::MarkedBlock::tryCreate):
(JSC::MarkedBlock::Handle::~Handle):
(JSC::MarkedBlock::MarkedBlock):
(JSC::MarkedBlock::Handle::specializedSweep):
(JSC::MarkedBlock::Handle::sweepHelperSelectMarksMode):
(JSC::MarkedBlock::Handle::stopAllocating):
(JSC::MarkedBlock::Handle::resumeAllocating):
(JSC::MarkedBlock::aboutToMarkSlow):
(JSC::MarkedBlock::Handle::didConsumeFreeList):
(JSC::MarkedBlock::Handle::dumpState): Deleted.
* heap/MarkedBlock.h:
(JSC::MarkedBlock::isMarked):
(JSC::MarkedBlock::markingVersion): Deleted.
(JSC::MarkedBlock::isMarkedRaw): Deleted.
* heap/MarkedBlockInlines.h:
(JSC::MarkedBlock::marksConveyLivenessDuringMarking):
* heap/SlotVisitor.cpp:
(JSC::SlotVisitor::appendJSCellOrAuxiliary):
* runtime/Options.h:
* runtime/StructureIDTable.h:
(JSC::StructureIDTable::get):
(JSC::StructureIDTable::size): Deleted.

Source/WTF:

* WTF.xcodeproj/project.pbxproj:
* wtf/CMakeLists.txt:
* wtf/DataLog.cpp:
(WTF::initializeLogFileOnce):
(WTF::initializeLogFile):
(WTF::dataFile):
* wtf/DataLog.h:
* wtf/LockedPrintStream.cpp: Removed.
* wtf/LockedPrintStream.h: Removed.
* wtf/PrintStream.cpp:
(WTF::PrintStream::printfVariableFormat): Deleted.
(WTF::PrintStream::begin): Deleted.
(WTF::PrintStream::end): Deleted.
* wtf/PrintStream.h:
(WTF::PrintStream::print):
(WTF::PrintStream::println):
(WTF::PrintStream::atomically): Deleted.
(WTF::PrintStream::printImpl): Deleted.
(): Deleted.
(WTF::>::unpack): Deleted.
(WTF::FormatImpl::FormatImpl): Deleted.
(WTF::FormatImpl::dump): Deleted.
(WTF::format): Deleted.
* wtf/RecursiveLockAdapter.h: Removed.
* wtf/WordLock.cpp:
* wtf/WordLock.h:

Modified Paths

Removed Paths

Diff

Modified: trunk/Source/_javascript_Core/CMakeLists.txt (209794 => 209795)


--- trunk/Source/_javascript_Core/CMakeLists.txt	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/CMakeLists.txt	2016-12-14 09:35:18 UTC (rev 209795)
@@ -464,7 +464,6 @@
     ftl/FTLValueRange.cpp
 
     heap/AllocatorAttributes.cpp
-    heap/CellContainer.cpp
     heap/CodeBlockSet.cpp
     heap/CollectionScope.cpp
     heap/ConservativeRoots.cpp

Modified: trunk/Source/_javascript_Core/ChangeLog (209794 => 209795)


--- trunk/Source/_javascript_Core/ChangeLog	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/ChangeLog	2016-12-14 09:35:18 UTC (rev 209795)
@@ -1,3 +1,45 @@
+2016-12-14  Gavin Barraclough  <[email protected]>
+
+        MarkedBlock::marksConveyLivenessDuringMarking should take into account collection scope
+        https://bugs.webkit.org/show_bug.cgi?id=165741
+
+        Unreviewed rollout due to performance regression.
+
+        * CMakeLists.txt:
+        * _javascript_Core.xcodeproj/project.pbxproj:
+        * heap/CellContainer.cpp: Removed.
+        * heap/CellContainer.h:
+        * heap/MarkedAllocator.cpp:
+        (JSC::MarkedAllocator::addBlock):
+        (JSC::MarkedAllocator::removeBlock):
+        (JSC::MarkedAllocator::dumpBits):
+        * heap/MarkedAllocator.h:
+        (JSC::MarkedAllocator::forEachBitVector):
+        (JSC::MarkedAllocator::forEachBitVectorWithName):
+        * heap/MarkedBlock.cpp:
+        (JSC::MarkedBlock::tryCreate):
+        (JSC::MarkedBlock::Handle::~Handle):
+        (JSC::MarkedBlock::MarkedBlock):
+        (JSC::MarkedBlock::Handle::specializedSweep):
+        (JSC::MarkedBlock::Handle::sweepHelperSelectMarksMode):
+        (JSC::MarkedBlock::Handle::stopAllocating):
+        (JSC::MarkedBlock::Handle::resumeAllocating):
+        (JSC::MarkedBlock::aboutToMarkSlow):
+        (JSC::MarkedBlock::Handle::didConsumeFreeList):
+        (JSC::MarkedBlock::Handle::dumpState): Deleted.
+        * heap/MarkedBlock.h:
+        (JSC::MarkedBlock::isMarked):
+        (JSC::MarkedBlock::markingVersion): Deleted.
+        (JSC::MarkedBlock::isMarkedRaw): Deleted.
+        * heap/MarkedBlockInlines.h:
+        (JSC::MarkedBlock::marksConveyLivenessDuringMarking):
+        * heap/SlotVisitor.cpp:
+        (JSC::SlotVisitor::appendJSCellOrAuxiliary):
+        * runtime/Options.h:
+        * runtime/StructureIDTable.h:
+        (JSC::StructureIDTable::get):
+        (JSC::StructureIDTable::size): Deleted.
+
 2016-12-13  Commit Queue  <[email protected]>
 
         Unreviewed, rolling out r209792.

Modified: trunk/Source/_javascript_Core/_javascript_Core.xcodeproj/project.pbxproj (209794 => 209795)


--- trunk/Source/_javascript_Core/_javascript_Core.xcodeproj/project.pbxproj	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/_javascript_Core.xcodeproj/project.pbxproj	2016-12-14 09:35:18 UTC (rev 209795)
@@ -752,7 +752,6 @@
 		0FDB2CEA174896C7007B3C1B /* ConcurrentJSLock.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FDB2CE9174896C7007B3C1B /* ConcurrentJSLock.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		0FDDBFB51666EED800C55FEF /* DFGVariableAccessDataDump.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FDDBFB21666EED500C55FEF /* DFGVariableAccessDataDump.cpp */; };
 		0FDDBFB61666EEDA00C55FEF /* DFGVariableAccessDataDump.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FDDBFB31666EED500C55FEF /* DFGVariableAccessDataDump.h */; };
-		0FDE87F91DFD0C760064C390 /* CellContainer.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FDE87F81DFD0C6D0064C390 /* CellContainer.cpp */; };
 		0FDE87FC1DFE6E510064C390 /* SpaceTimeScheduler.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FDE87FB1DFE6E500064C390 /* SpaceTimeScheduler.h */; };
 		0FDE87FD1DFE6E540064C390 /* SpaceTimeScheduler.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FDE87FA1DFE6E500064C390 /* SpaceTimeScheduler.cpp */; };
 		0FDF67D21D9C6D27001B9825 /* B3Kind.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FDF67D11D9C6086001B9825 /* B3Kind.h */; };
@@ -3182,7 +3181,6 @@
 		0FDB2CE9174896C7007B3C1B /* ConcurrentJSLock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ConcurrentJSLock.h; sourceTree = "<group>"; };
 		0FDDBFB21666EED500C55FEF /* DFGVariableAccessDataDump.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = DFGVariableAccessDataDump.cpp; path = dfg/DFGVariableAccessDataDump.cpp; sourceTree = "<group>"; };
 		0FDDBFB31666EED500C55FEF /* DFGVariableAccessDataDump.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = DFGVariableAccessDataDump.h; path = dfg/DFGVariableAccessDataDump.h; sourceTree = "<group>"; };
-		0FDE87F81DFD0C6D0064C390 /* CellContainer.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = CellContainer.cpp; sourceTree = "<group>"; };
 		0FDE87FA1DFE6E500064C390 /* SpaceTimeScheduler.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = SpaceTimeScheduler.cpp; sourceTree = "<group>"; };
 		0FDE87FB1DFE6E500064C390 /* SpaceTimeScheduler.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SpaceTimeScheduler.h; sourceTree = "<group>"; };
 		0FDF67D01D9C6086001B9825 /* B3Kind.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = B3Kind.cpp; path = b3/B3Kind.cpp; sourceTree = "<group>"; };
@@ -5637,7 +5635,6 @@
 				0FA7620A1DB959F600B7A2FD /* AllocatingScope.h */,
 				0F9630351D4192C3005609D9 /* AllocatorAttributes.cpp */,
 				0F9630361D4192C3005609D9 /* AllocatorAttributes.h */,
-				0FDE87F81DFD0C6D0064C390 /* CellContainer.cpp */,
 				0F070A421D543A89006E7232 /* CellContainer.h */,
 				0F070A431D543A89006E7232 /* CellContainerInlines.h */,
 				0F1C3DD91BBCE09E00E523E4 /* CellState.h */,
@@ -10257,7 +10254,6 @@
 				0FB1058B1675483100F8AB6E /* ProfilerOSRExit.cpp in Sources */,
 				0FB1058D1675483700F8AB6E /* ProfilerOSRExitSite.cpp in Sources */,
 				0F61832B1C45BF070072450B /* AirCustom.cpp in Sources */,
-				0FDE87F91DFD0C760064C390 /* CellContainer.cpp in Sources */,
 				0F13912B16771C3A009CCB07 /* ProfilerProfiledBytecodes.cpp in Sources */,
 				0FD3E40D1B618B6600C80E1E /* PropertyCondition.cpp in Sources */,
 				E35CA1531DBC3A5C00F83516 /* DOMJITHeapRange.cpp in Sources */,

Deleted: trunk/Source/_javascript_Core/heap/CellContainer.cpp (209794 => 209795)


--- trunk/Source/_javascript_Core/heap/CellContainer.cpp	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/heap/CellContainer.cpp	2016-12-14 09:35:18 UTC (rev 209795)
@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2016 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#include "config.h"
-#include "CellContainer.h"
-
-#include "MarkedBlockInlines.h"
-
-namespace JSC {
-
-bool CellContainer::isNewlyAllocated(HeapCell* cell) const
-{
-    if (isLargeAllocation())
-        return largeAllocation().isNewlyAllocated();
-    MarkedBlock::Handle& handle = markedBlock().handle();
-    return !handle.isNewlyAllocatedStale()
-        && handle.isNewlyAllocated(cell);
-}
-
-} // namespace JSC
-

Modified: trunk/Source/_javascript_Core/heap/CellContainer.h (209794 => 209795)


--- trunk/Source/_javascript_Core/heap/CellContainer.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/heap/CellContainer.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -84,8 +84,6 @@
     bool isMarked(HeapCell*) const;
     bool isMarked(HeapVersion markingVersion, HeapCell*) const;
     
-    bool isNewlyAllocated(HeapCell*) const;
-    
     void noteMarked();
     void assertValidCell(VM&, HeapCell*) const;
     

Modified: trunk/Source/_javascript_Core/heap/MarkedAllocator.cpp (209794 => 209795)


--- trunk/Source/_javascript_Core/heap/MarkedAllocator.cpp	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/heap/MarkedAllocator.cpp	2016-12-14 09:35:18 UTC (rev 209795)
@@ -270,7 +270,6 @@
         m_blocks.append(block);
         if (m_blocks.capacity() != oldCapacity) {
             forEachBitVector(
-                NoLockingNecessary,
                 [&] (FastBitVector& vector) {
                     ASSERT_UNUSED(vector, vector.numBits() == oldCapacity);
                 });
@@ -279,7 +278,6 @@
             
             LockHolder locker(m_bitvectorLock);
             forEachBitVector(
-                locker,
                 [&] (FastBitVector& vector) {
                     vector.resize(m_blocks.capacity());
                 });
@@ -291,7 +289,6 @@
     }
     
     forEachBitVector(
-        NoLockingNecessary,
         [&] (FastBitVector& vector) {
             ASSERT_UNUSED(vector, !vector[index]);
         });
@@ -312,7 +309,6 @@
     m_freeBlockIndices.append(block->index());
     
     forEachBitVector(
-        holdLock(m_bitvectorLock),
         [&] (FastBitVector& vector) {
             vector[block->index()] = false;
         });
@@ -471,7 +467,6 @@
 {
     unsigned maxNameLength = 0;
     forEachBitVectorWithName(
-        NoLockingNecessary,
         [&] (FastBitVector&, const char* name) {
             unsigned length = strlen(name);
             maxNameLength = std::max(maxNameLength, length);
@@ -478,7 +473,6 @@
         });
     
     forEachBitVectorWithName(
-        NoLockingNecessary,
         [&] (FastBitVector& vector, const char* name) {
             out.print("    ", name, ": ");
             for (unsigned i = maxNameLength - strlen(name); i--;)

Modified: trunk/Source/_javascript_Core/heap/MarkedAllocator.h (209794 => 209795)


--- trunk/Source/_javascript_Core/heap/MarkedAllocator.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/heap/MarkedAllocator.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -182,7 +182,7 @@
 #undef MARKED_ALLOCATOR_BIT_ACCESSORS
 
     template<typename Func>
-    void forEachBitVector(const AbstractLocker&, const Func& func)
+    void forEachBitVector(const Func& func)
     {
 #define MARKED_ALLOCATOR_BIT_CALLBACK(lowerBitName, capitalBitName) \
         func(m_ ## lowerBitName);
@@ -191,7 +191,7 @@
     }
     
     template<typename Func>
-    void forEachBitVectorWithName(const AbstractLocker&, const Func& func)
+    void forEachBitVectorWithName(const Func& func)
     {
 #define MARKED_ALLOCATOR_BIT_CALLBACK(lowerBitName, capitalBitName) \
         func(m_ ## lowerBitName, #capitalBitName);

Modified: trunk/Source/_javascript_Core/heap/MarkedBlock.cpp (209794 => 209795)


--- trunk/Source/_javascript_Core/heap/MarkedBlock.cpp	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/heap/MarkedBlock.cpp	2016-12-14 09:35:18 UTC (rev 209795)
@@ -44,7 +44,7 @@
     if (computeBalance) {
         balance++;
         if (!(balance % 10))
-            dataLog("MarkedBlock Balance: ", balance, "\n");
+            dataLog(toCString("MarkedBlock Balance: ", balance, "\n"));
     }
     void* blockSpace = tryFastAlignedMalloc(blockSize, blockSize);
     if (!blockSpace)
@@ -71,7 +71,7 @@
     if (computeBalance) {
         balance--;
         if (!(balance % 10))
-            dataLog("MarkedBlock Balance: ", balance, "\n");
+            dataLog(toCString("MarkedBlock Balance: ", balance, "\n"));
     }
     removeFromAllocator();
     m_block->~MarkedBlock();
@@ -85,7 +85,7 @@
     , m_vm(&vm)
 {
     if (false)
-        dataLog(RawPointer(this), ": Allocated.\n");
+        dataLog(toCString(RawPointer(this), ": Allocated.\n"));
 }
 
 template<MarkedBlock::Handle::EmptyMode emptyMode, MarkedBlock::Handle::SweepMode sweepMode, MarkedBlock::Handle::SweepDestructionMode destructionMode, MarkedBlock::Handle::ScribbleMode scribbleMode, MarkedBlock::Handle::NewlyAllocatedMode newlyAllocatedMode, MarkedBlock::Handle::MarksMode marksMode>
@@ -98,7 +98,7 @@
     MarkedBlock& block = this->block();
     
     if (false)
-        dataLog(RawPointer(this), "/", RawPointer(&block), ": MarkedBlock::Handle::specializedSweep!\n");
+        dataLog(toCString(RawPointer(this), "/", RawPointer(&block), ": MarkedBlock::Handle::specializedSweep!\n"));
     
     if (Options::useBumpAllocator()
         && emptyMode == IsEmpty
@@ -106,14 +106,11 @@
         
         // This is an incredibly powerful assertion that checks the sanity of our block bits.
         if (marksMode == MarksNotStale && !block.m_marks.isEmpty()) {
-            WTF::dataFile().atomically(
-                [&] (PrintStream& out) {
-                    out.print("Block ", RawPointer(&block), ": marks not empty!\n");
-                    out.print("Block lock is held: ", block.m_lock.isHeld(), "\n");
-                    out.print("Marking version of block: ", block.m_markingVersion, "\n");
-                    out.print("Marking version of heap: ", space()->markingVersion(), "\n");
-                    UNREACHABLE_FOR_PLATFORM();
-                });
+            dataLog(toCString("Block ", RawPointer(&block), ": marks not empty!\n"));
+            dataLog(toCString("Block lock is held: ", block.m_lock.isHeld(), "\n"));
+            dataLog(toCString("Marking version of block: ", block.m_markingVersion, "\n"));
+            dataLog(toCString("Marking version of heap: ", space()->markingVersion(), "\n"));
+            RELEASE_ASSERT_NOT_REACHED();
         }
         
         char* startOfLastCell = static_cast<char*>(cellAlign(block.atoms() + m_endAtom - 1));
@@ -130,7 +127,7 @@
             block.m_lock.unlock();
         FreeList result = FreeList::bump(payloadEnd, payloadEnd - payloadBegin);
         if (false)
-            dataLog("Quickly swept block ", RawPointer(this), " with cell size ", cellSize(), " and attributes ", m_attributes, ": ", result, "\n");
+            dataLog(toCString("Quickly swept block ", RawPointer(this), " with cell size ", cellSize(), " and attributes ", m_attributes, ": ", result, "\n"));
         return result;
     }
 
@@ -189,7 +186,7 @@
     else if (isEmpty)
         m_allocator->setIsEmpty(NoLockingNecessary, this, true);
     if (false)
-        dataLog("Slowly swept block ", RawPointer(&block), " with cell size ", cellSize(), " and attributes ", m_attributes, ": ", result, "\n");
+        dataLog(toCString("Slowly swept block ", RawPointer(&block), " with cell size ", cellSize(), " and attributes ", m_attributes, ": ", result, "\n"));
     return result;
 }
 
@@ -265,7 +262,7 @@
     HeapVersion markingVersion = space()->markingVersion();
     bool marksAreUseful = !block().areMarksStale(markingVersion);
     
-    if (space()->isMarking())
+    if (space()->isMarking() && heap()->collectionScope() == CollectionScope::Full)
         marksAreUseful |= block().marksConveyLivenessDuringMarking(markingVersion);
     
     if (!marksAreUseful)
@@ -290,12 +287,12 @@
     auto locker = holdLock(block().m_lock);
     
     if (false)
-        dataLog(RawPointer(this), ": MarkedBlock::Handle::stopAllocating!\n");
+        dataLog(toCString(RawPointer(this), ": MarkedBlock::Handle::stopAllocating!\n"));
     ASSERT(!allocator()->isAllocated(NoLockingNecessary, this));
 
     if (!isFreeListed()) {
         if (false)
-            dataLog("There ain't no newly allocated.\n");
+            dataLog(toCString("There ain't no newly allocated.\n"));
         // This means that we either didn't use this block at all for allocation since last GC,
         // or someone had already done stopAllocating() before.
         ASSERT(freeList.allocationWillFail());
@@ -303,7 +300,7 @@
     }
     
     if (false)
-        dataLog("Free list: ", freeList, "\n");
+        dataLog(toCString("Free list: ", freeList, "\n"));
     
     // Roll back to a coherent state for Heap introspection. Cells newly
     // allocated from our free list are not currently marked, so we need another
@@ -322,7 +319,7 @@
         freeList,
         [&] (HeapCell* cell) {
             if (false)
-                dataLog("Free cell: ", RawPointer(cell), "\n");
+                dataLog(toCString("Free cell: ", RawPointer(cell), "\n"));
             if (m_attributes.destruction == NeedsDestruction)
                 cell->zap();
             clearNewlyAllocated(cell);
@@ -349,13 +346,13 @@
         auto locker = holdLock(block().m_lock);
         
         if (false)
-            dataLog(RawPointer(this), ": MarkedBlock::Handle::resumeAllocating!\n");
+            dataLog(toCString(RawPointer(this), ": MarkedBlock::Handle::resumeAllocating!\n"));
         ASSERT(!allocator()->isAllocated(NoLockingNecessary, this));
         ASSERT(!isFreeListed());
         
         if (!hasAnyNewlyAllocated()) {
             if (false)
-                dataLog("There ain't no newly allocated.\n");
+                dataLog(toCString("There ain't no newly allocated.\n"));
             // This means we had already exhausted the block when we stopped allocation.
             return FreeList();
         }
@@ -404,7 +401,7 @@
     if (handle().allocator()->isAllocated(holdLock(allocator->bitvectorLock()), &handle())
         || !marksConveyLivenessDuringMarking(markingVersion)) {
         if (false)
-            dataLog(RawPointer(this), ": Clearing marks without doing anything else.\n");
+            dataLog(toCString(RawPointer(this), ": Clearing marks without doing anything else.\n"));
         // We already know that the block is full and is already recognized as such, or that the
         // block did not survive the previous GC. So, we can clear mark bits the old fashioned
         // way. Note that it's possible for such a block to have newlyAllocated with an up-to-
@@ -414,7 +411,7 @@
         m_marks.clearAll();
     } else {
         if (false)
-            dataLog(RawPointer(this), ": Doing things.\n");
+            dataLog(toCString(RawPointer(this), ": Doing things.\n"));
         HeapVersion newlyAllocatedVersion = space()->newlyAllocatedVersion();
         if (handle().m_newlyAllocatedVersion == newlyAllocatedVersion) {
             // Merge the contents of marked into newlyAllocated. If we get the full set of bits
@@ -480,7 +477,7 @@
 {
     auto locker = holdLock(block().m_lock);
     if (false)
-        dataLog(RawPointer(this), ": MarkedBlock::Handle::didConsumeFreeList!\n");
+        dataLog(toCString(RawPointer(this), ": MarkedBlock::Handle::didConsumeFreeList!\n"));
     ASSERT(isFreeListed());
     m_isFreeListed = false;
     allocator()->setIsAllocated(NoLockingNecessary, this, true);
@@ -576,16 +573,6 @@
 }
 #endif
 
-void MarkedBlock::Handle::dumpState(PrintStream& out)
-{
-    CommaPrinter comma;
-    allocator()->forEachBitVectorWithName(
-        holdLock(allocator()->bitvectorLock()),
-        [&] (FastBitVector& bitvector, const char* name) {
-            out.print(comma, name, ":", bitvector[index()] ? "YES" : "no");
-        });
-}
-
 } // namespace JSC
 
 namespace WTF {

Modified: trunk/Source/_javascript_Core/heap/MarkedBlock.h (209794 => 209795)


--- trunk/Source/_javascript_Core/heap/MarkedBlock.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/heap/MarkedBlock.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -187,8 +187,6 @@
         void didAddToAllocator(MarkedAllocator*, size_t index);
         void didRemoveFromAllocator();
         
-        void dumpState(PrintStream&);
-        
     private:
         Handle(Heap&, void*);
         
@@ -300,9 +298,6 @@
     
     void resetMarks();
     
-    bool isMarkedRaw(const void* p);
-    HeapVersion markingVersion() const { return m_markingVersion; }
-    
 private:
     static const size_t atomAlignmentMask = atomSize - 1;
 
@@ -523,14 +518,9 @@
     block().assertMarksNotStale();
 }
 
-inline bool MarkedBlock::isMarkedRaw(const void* p)
-{
-    return m_marks.get(atomNumber(p));
-}
-
 inline bool MarkedBlock::isMarked(HeapVersion markingVersion, const void* p)
 {
-    return areMarksStale(markingVersion) ? false : isMarkedRaw(p);
+    return areMarksStale(markingVersion) ? false : m_marks.get(atomNumber(p));
 }
 
 inline bool MarkedBlock::isMarkedConcurrently(HeapVersion markingVersion, const void* p)

Modified: trunk/Source/_javascript_Core/heap/MarkedBlockInlines.h (209794 => 209795)


--- trunk/Source/_javascript_Core/heap/MarkedBlockInlines.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/heap/MarkedBlockInlines.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -28,7 +28,6 @@
 #include "MarkedAllocator.h"
 #include "MarkedBlock.h"
 #include "MarkedSpace.h"
-#include "VM.h"
 
 namespace JSC {
 
@@ -52,8 +51,6 @@
     // back" state only makes sense when we're in a concurrent collection and have to be
     // conservative.
     ASSERT(space()->isMarking());
-    if (heap()->collectionScope() != CollectionScope::Full)
-        return false;
     return m_markingVersion == MarkedSpace::nullVersion
         || MarkedSpace::nextVersion(m_markingVersion) == markingVersion;
 }

Modified: trunk/Source/_javascript_Core/heap/SlotVisitor.cpp (209794 => 209795)


--- trunk/Source/_javascript_Core/heap/SlotVisitor.cpp	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/heap/SlotVisitor.cpp	2016-12-14 09:35:18 UTC (rev 209795)
@@ -135,75 +135,18 @@
     
     ASSERT(!m_isCheckingForDefaultMarkViolation);
     
-    auto validateCell = [&] (JSCell* jsCell) {
-        StructureID structureID = jsCell->structureID();
-        
-        auto die = [&] (const char* text) {
-            WTF::dataFile().atomically(
-                [&] (PrintStream& out) {
-                    out.print(text);
-                    out.print("GC type: ", heap()->collectionScope(), "\n");
-                    out.print("Object at: ", RawPointer(jsCell), "\n");
-#if USE(JSVALUE64)
-                    out.print("Structure ID: ", structureID, " (0x", format("%x", structureID), ")\n");
-                    out.print("Structure ID table size: ", heap()->structureIDTable().size(), "\n");
-#else
-                    out.print("Structure: ", RawPointer(structureID), "\n");
-#endif
-                    out.print("Object contents:");
-                    for (unsigned i = 0; i < 2; ++i)
-                        out.print(" ", format("0x%016llx", bitwise_cast<uint64_t*>(jsCell)[i]));
-                    out.print("\n");
-                    CellContainer container = jsCell->cellContainer();
-                    out.print("Is marked: ", container.isMarked(jsCell), "\n");
-                    out.print("Is newly allocated: ", container.isNewlyAllocated(jsCell), "\n");
-                    if (container.isMarkedBlock()) {
-                        MarkedBlock& block = container.markedBlock();
-                        out.print("Block: ", RawPointer(&block), "\n");
-                        block.handle().dumpState(out);
-                        out.print("\n");
-                        out.print("Is marked raw: ", block.isMarkedRaw(jsCell), "\n");
-                        out.print("Marking version: ", block.markingVersion(), "\n");
-                        out.print("Heap marking version: ", heap()->objectSpace().markingVersion(), "\n");
-                        out.print("Is newly allocated raw: ", block.handle().isNewlyAllocated(jsCell), "\n");
-                        out.print("Newly allocated version: ", block.handle().newlyAllocatedVersion(), "\n");
-                        out.print("Heap newly allocated version: ", heap()->objectSpace().newlyAllocatedVersion(), "\n");
-                    }
-                    UNREACHABLE_FOR_PLATFORM();
-                });
-        };
-        
-        // It's not OK for the structure to be null at any GC scan point. We must not GC while
-        // an object is not fully initialized.
-        if (!structureID)
-            die("GC scan found corrupt object: structureID is zero!\n");
-        
-        // It's not OK for the structure to be nuked at any GC scan point.
-        if (isNuked(structureID))
-            die("GC scan found object in bad state: structureID is nuked!\n");
-        
-#if USE(JSVALUE64)
-        // This detects the worst of the badness.
-        if (structureID >= heap()->structureIDTable().size())
-            die("GC scan found corrupt object: structureID is out of bounds!\n");
-#endif
-    };
-    
-    // In debug mode, we validate before marking since this makes it clearer what the problem
-    // was. It's also slower, so we don't do it normally.
-    if (!ASSERT_DISABLED && heapCell->cellKind() == HeapCell::JSCell)
-        validateCell(static_cast<JSCell*>(heapCell));
-    
     if (Heap::testAndSetMarked(m_markingVersion, heapCell))
         return;
     
     switch (heapCell->cellKind()) {
     case HeapCell::JSCell: {
-        // We have ample budget to perform validation here.
-    
         JSCell* jsCell = static_cast<JSCell*>(heapCell);
-        validateCell(jsCell);
         
+        if (!jsCell->structure()) {
+            ASSERT_NOT_REACHED();
+            return;
+        }
+        
         jsCell->setCellState(CellState::Grey);
 
         appendToMarkStack(jsCell);

Modified: trunk/Source/_javascript_Core/runtime/Options.h (209794 => 209795)


--- trunk/Source/_javascript_Core/runtime/Options.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/runtime/Options.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -184,7 +184,7 @@
     v(bool, verboseSanitizeStack, false, Normal, nullptr) \
     v(bool, useGenerationalGC, true, Normal, nullptr) \
     v(bool, useConcurrentBarriers, true, Normal, nullptr) \
-    v(bool, useConcurrentGC, true, Normal, nullptr) \
+    v(bool, useConcurrentGC, false, Normal, nullptr) \
     v(bool, collectContinuously, false, Normal, nullptr) \
     v(double, collectContinuouslyPeriodMS, 1, Normal, nullptr) \
     v(bool, forceFencedBarrier, false, Normal, nullptr) \

Modified: trunk/Source/_javascript_Core/runtime/StructureIDTable.h (209794 => 209795)


--- trunk/Source/_javascript_Core/runtime/StructureIDTable.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/_javascript_Core/runtime/StructureIDTable.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -90,8 +90,6 @@
     StructureID allocateID(Structure*);
 
     void flushOldTables();
-    
-    size_t size() const { return m_size; }
 
 private:
     void resize(size_t newCapacity);
@@ -123,9 +121,7 @@
 inline Structure* StructureIDTable::get(StructureID structureID)
 {
 #if USE(JSVALUE64)
-    ASSERT_WITH_SECURITY_IMPLICATION(structureID);
-    ASSERT_WITH_SECURITY_IMPLICATION(!isNuked(structureID));
-    ASSERT_WITH_SECURITY_IMPLICATION(structureID < m_capacity);
+    ASSERT_WITH_SECURITY_IMPLICATION(structureID && structureID < m_capacity);
     return table()[structureID].structure;
 #else
     return structureID;

Modified: trunk/Source/WTF/ChangeLog (209794 => 209795)


--- trunk/Source/WTF/ChangeLog	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/ChangeLog	2016-12-14 09:35:18 UTC (rev 209795)
@@ -1,3 +1,37 @@
+2016-12-14  Gavin Barraclough  <[email protected]>
+
+        MarkedBlock::marksConveyLivenessDuringMarking should take into account collection scope
+        https://bugs.webkit.org/show_bug.cgi?id=165741
+
+        Unreviewed rollout due to performance regression.
+
+        * WTF.xcodeproj/project.pbxproj:
+        * wtf/CMakeLists.txt:
+        * wtf/DataLog.cpp:
+        (WTF::initializeLogFileOnce):
+        (WTF::initializeLogFile):
+        (WTF::dataFile):
+        * wtf/DataLog.h:
+        * wtf/LockedPrintStream.cpp: Removed.
+        * wtf/LockedPrintStream.h: Removed.
+        * wtf/PrintStream.cpp:
+        (WTF::PrintStream::printfVariableFormat): Deleted.
+        (WTF::PrintStream::begin): Deleted.
+        (WTF::PrintStream::end): Deleted.
+        * wtf/PrintStream.h:
+        (WTF::PrintStream::print):
+        (WTF::PrintStream::println):
+        (WTF::PrintStream::atomically): Deleted.
+        (WTF::PrintStream::printImpl): Deleted.
+        (): Deleted.
+        (WTF::>::unpack): Deleted.
+        (WTF::FormatImpl::FormatImpl): Deleted.
+        (WTF::FormatImpl::dump): Deleted.
+        (WTF::format): Deleted.
+        * wtf/RecursiveLockAdapter.h: Removed.
+        * wtf/WordLock.cpp:
+        * wtf/WordLock.h:
+
 2016-12-13  JF Bastien  <[email protected]>
 
         std::expected: fix rvalue forwarding issues

Modified: trunk/Source/WTF/WTF.xcodeproj/project.pbxproj (209794 => 209795)


--- trunk/Source/WTF/WTF.xcodeproj/project.pbxproj	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/WTF.xcodeproj/project.pbxproj	2016-12-14 09:35:18 UTC (rev 209795)
@@ -30,8 +30,6 @@
 		0F43D8F21DB5ADDC00108FB6 /* AutomaticThread.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F43D8F01DB5ADDC00108FB6 /* AutomaticThread.h */; };
 		0F4570431BE5B58F0062A629 /* Dominators.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F4570421BE5B58F0062A629 /* Dominators.h */; };
 		0F4570451BE834410062A629 /* BubbleSort.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F4570441BE834410062A629 /* BubbleSort.h */; };
-		0F60F32F1DFCBD1B00416D6C /* LockedPrintStream.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0F60F32D1DFCBD1B00416D6C /* LockedPrintStream.cpp */; };
-		0F60F3301DFCBD1B00416D6C /* LockedPrintStream.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F60F32E1DFCBD1B00416D6C /* LockedPrintStream.h */; };
 		0F66B28A1DC97BAB004A1D3F /* ClockType.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0F66B2801DC97BAB004A1D3F /* ClockType.cpp */; };
 		0F66B28B1DC97BAB004A1D3F /* ClockType.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F66B2811DC97BAB004A1D3F /* ClockType.h */; };
 		0F66B28C1DC97BAB004A1D3F /* MonotonicTime.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0F66B2821DC97BAB004A1D3F /* MonotonicTime.cpp */; };
@@ -65,7 +63,6 @@
 		0FDB698E1B7C643A000C1078 /* Condition.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FDB698D1B7C643A000C1078 /* Condition.h */; };
 		0FDDBFA71666DFA300C55FEF /* StringPrintStream.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FDDBFA51666DFA300C55FEF /* StringPrintStream.cpp */; };
 		0FDDBFA81666DFA300C55FEF /* StringPrintStream.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FDDBFA61666DFA300C55FEF /* StringPrintStream.h */; };
-		0FDE87F71DFD07CC0064C390 /* RecursiveLockAdapter.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FDE87F61DFD07CC0064C390 /* RecursiveLockAdapter.h */; };
 		0FE1646A1B6FFC9600400E7C /* Lock.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FE164681B6FFC9600400E7C /* Lock.cpp */; };
 		0FE1646B1B6FFC9600400E7C /* Lock.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FE164691B6FFC9600400E7C /* Lock.h */; };
 		0FE4479C1B7AAA03009498EB /* WordLock.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FE4479A1B7AAA03009498EB /* WordLock.cpp */; };
@@ -391,8 +388,6 @@
 		0F43D8F01DB5ADDC00108FB6 /* AutomaticThread.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AutomaticThread.h; sourceTree = "<group>"; };
 		0F4570421BE5B58F0062A629 /* Dominators.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Dominators.h; sourceTree = "<group>"; };
 		0F4570441BE834410062A629 /* BubbleSort.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = BubbleSort.h; sourceTree = "<group>"; };
-		0F60F32D1DFCBD1B00416D6C /* LockedPrintStream.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = LockedPrintStream.cpp; sourceTree = "<group>"; };
-		0F60F32E1DFCBD1B00416D6C /* LockedPrintStream.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = LockedPrintStream.h; sourceTree = "<group>"; };
 		0F66B2801DC97BAB004A1D3F /* ClockType.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = ClockType.cpp; sourceTree = "<group>"; };
 		0F66B2811DC97BAB004A1D3F /* ClockType.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ClockType.h; sourceTree = "<group>"; };
 		0F66B2821DC97BAB004A1D3F /* MonotonicTime.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = MonotonicTime.cpp; sourceTree = "<group>"; };
@@ -426,7 +421,6 @@
 		0FDB698D1B7C643A000C1078 /* Condition.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Condition.h; sourceTree = "<group>"; };
 		0FDDBFA51666DFA300C55FEF /* StringPrintStream.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = StringPrintStream.cpp; sourceTree = "<group>"; };
 		0FDDBFA61666DFA300C55FEF /* StringPrintStream.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = StringPrintStream.h; sourceTree = "<group>"; };
-		0FDE87F61DFD07CC0064C390 /* RecursiveLockAdapter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RecursiveLockAdapter.h; sourceTree = "<group>"; };
 		0FE164681B6FFC9600400E7C /* Lock.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = Lock.cpp; sourceTree = "<group>"; };
 		0FE164691B6FFC9600400E7C /* Lock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Lock.h; sourceTree = "<group>"; };
 		0FE4479A1B7AAA03009498EB /* WordLock.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = WordLock.cpp; sourceTree = "<group>"; };
@@ -864,6 +858,7 @@
 		A876DBD6151816E500DADB95 /* wtf */ = {
 			isa = PBXGroup;
 			children = (
+				AD7C434A1DD2A4A70026888B /* Expected.h */,
 				2CDED0F018115C3F004DBA70 /* cf */,
 				E4A0AD3B1A96251900536DF6 /* cocoa */,
 				A8A47281151A825A004123FF /* dtoa */,
@@ -931,7 +926,6 @@
 				A8A47297151A825A004123FF /* dtoa.cpp */,
 				A8A47298151A825A004123FF /* dtoa.h */,
 				1AEA88E11D6BBCF400E5AD64 /* EnumTraits.h */,
-				AD7C434A1DD2A4A70026888B /* Expected.h */,
 				A8A4729F151A825A004123FF /* ExportMacros.h */,
 				0F7C5FB51D885CF20044F5E2 /* FastBitVector.cpp */,
 				0FD81AC4154FB22E00983E72 /* FastBitVector.h */,
@@ -972,8 +966,6 @@
 				0FE164681B6FFC9600400E7C /* Lock.cpp */,
 				0FE164691B6FFC9600400E7C /* Lock.h */,
 				0F0FCDDD1DD167F900CCAB53 /* LockAlgorithm.h */,
-				0F60F32D1DFCBD1B00416D6C /* LockedPrintStream.cpp */,
-				0F60F32E1DFCBD1B00416D6C /* LockedPrintStream.h */,
 				A8A472C3151A825A004123FF /* Locker.h */,
 				513E170A1CD7D5BF00E3650B /* LoggingAccumulator.h */,
 				A8A472C6151A825A004123FF /* MainThread.cpp */,
@@ -1033,7 +1025,6 @@
 				A8A472FD151A825B004123FF /* RandomNumberSeed.h */,
 				0F725CAB1C50461600AD943A /* RangeSet.h */,
 				0F87105916643F190090B0AD /* RawPointer.h */,
-				0FDE87F61DFD07CC0064C390 /* RecursiveLockAdapter.h */,
 				A8A472FE151A825B004123FF /* RedBlackTree.h */,
 				26299B6D17A9E5B800ADEBE5 /* Ref.h */,
 				A8A472FF151A825B004123FF /* RefCounted.h */,
@@ -1395,7 +1386,6 @@
 				7CDD7FFA186D2A54007433CD /* IteratorRange.h in Headers */,
 				0F43D8F21DB5ADDC00108FB6 /* AutomaticThread.h in Headers */,
 				93AC91A818942FC400244939 /* LChar.h in Headers */,
-				0F60F3301DFCBD1B00416D6C /* LockedPrintStream.h in Headers */,
 				539EB0631D55284200C82EF7 /* LEBDecoder.h in Headers */,
 				A70DA0851799F04D00529A9B /* ListDump.h in Headers */,
 				0F66B2931DC97BAB004A1D3F /* WallTime.h in Headers */,
@@ -1469,7 +1459,6 @@
 				0FEB3DCF1BB5D684009D7AAD /* SharedTask.h in Headers */,
 				A8A47423151A825B004123FF /* SimpleStats.h in Headers */,
 				A8A47424151A825B004123FF /* SinglyLinkedList.h in Headers */,
-				0FDE87F71DFD07CC0064C390 /* RecursiveLockAdapter.h in Headers */,
 				A748745317A0BDAE00FA04CB /* SixCharacterHash.h in Headers */,
 				79EC70611C99F9BC003A3AE2 /* SmallPtrSet.h in Headers */,
 				A8A47426151A825B004123FF /* Spectrum.h in Headers */,
@@ -1665,7 +1654,6 @@
 				A8A473B0151A825B004123FF /* double-conversion.cc in Sources */,
 				A8A473BA151A825B004123FF /* dtoa.cpp in Sources */,
 				A8A473B3151A825B004123FF /* fast-dtoa.cc in Sources */,
-				0F60F32F1DFCBD1B00416D6C /* LockedPrintStream.cpp in Sources */,
 				A8A473C3151A825B004123FF /* FastMalloc.cpp in Sources */,
 				0F9D3360165DBA73005AD387 /* FilePrintStream.cpp in Sources */,
 				A8A473B5151A825B004123FF /* fixed-dtoa.cc in Sources */,

Modified: trunk/Source/WTF/wtf/CMakeLists.txt (209794 => 209795)


--- trunk/Source/WTF/wtf/CMakeLists.txt	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/wtf/CMakeLists.txt	2016-12-14 09:35:18 UTC (rev 209795)
@@ -57,7 +57,6 @@
     ListHashSet.h
     Lock.h
     LockAlgorithm.h
-    LockedPrintStream.h
     Locker.h
     MD5.h
     MainThread.h
@@ -93,7 +92,6 @@
     RandomNumberSeed.h
     RangeSet.h
     RawPointer.h
-    RecursiveLockAdapter.h
     RedBlackTree.h
     Ref.h
     RefCounted.h
@@ -200,7 +198,6 @@
     GregorianDateTime.cpp
     HashTable.cpp
     Lock.cpp
-    LockedPrintStream.cpp
     MD5.cpp
     MainThread.cpp
     MediaTime.cpp

Modified: trunk/Source/WTF/wtf/DataLog.cpp (209794 => 209795)


--- trunk/Source/WTF/wtf/DataLog.cpp	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/wtf/DataLog.cpp	2016-12-14 09:35:18 UTC (rev 209795)
@@ -28,10 +28,7 @@
 #include <stdarg.h>
 #include <string.h>
 #include <wtf/FilePrintStream.h>
-#include <wtf/LockedPrintStream.h>
 #include <wtf/Threading.h>
-#include <mutex>
-#include <thread>
 
 #if OS(UNIX) || OS(DARWIN)
 #include <unistd.h>
@@ -50,14 +47,16 @@
 
 namespace WTF {
 
-static PrintStream* s_file;
+#if USE(PTHREADS)
+static pthread_once_t initializeLogFileOnceKey = PTHREAD_ONCE_INIT;
+#endif
 
-static uint64_t s_fileData[(sizeof(FilePrintStream) + 7) / 8];
+static FilePrintStream* file;
 
+static uint64_t fileData[(sizeof(FilePrintStream) + 7) / 8];
+
 static void initializeLogFileOnce()
 {
-    FilePrintStream* file = nullptr;
-    
 #if DATA_LOG_TO_FILE
     const long maxPathLength = 1024;
 
@@ -118,38 +117,29 @@
             WTFLogAlways("Warning: Could not open DataLog file %s for writing.\n", actualFilename);
     }
 #endif // DATA_LOG_TO_FILE
-    
-    bool wrapWithLocked = true;
-    
     if (!file) {
         // Use placement new; this makes it easier to use dataLog() to debug
         // fastMalloc.
-        file = new (s_fileData) FilePrintStream(stderr, FilePrintStream::Borrow);
-        wrapWithLocked = false;
+        file = new (fileData) FilePrintStream(stderr, FilePrintStream::Borrow);
     }
     
     setvbuf(file->file(), 0, _IONBF, 0); // Prefer unbuffered output, so that we get a full log upon crash or deadlock.
-    
-    if (wrapWithLocked)
-        s_file = new LockedPrintStream(std::unique_ptr<FilePrintStream>(file));
-    else
-        s_file = file;
 }
 
 static void initializeLogFile()
 {
-    static std::once_flag once;
-    std::call_once(
-        once,
-        [] {
-            initializeLogFileOnce();
-        });
+#if USE(PTHREADS)
+    pthread_once(&initializeLogFileOnceKey, initializeLogFileOnce);
+#else
+    if (!file)
+        initializeLogFileOnce();
+#endif
 }
 
-PrintStream& dataFile()
+FilePrintStream& dataFile()
 {
     initializeLogFile();
-    return *s_file;
+    return *file;
 }
 
 void dataLogFV(const char* format, va_list argList)

Modified: trunk/Source/WTF/wtf/DataLog.h (209794 => 209795)


--- trunk/Source/WTF/wtf/DataLog.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/wtf/DataLog.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -28,12 +28,12 @@
 
 #include <stdarg.h>
 #include <stdio.h>
-#include <wtf/PrintStream.h>
+#include <wtf/FilePrintStream.h>
 #include <wtf/StdLibExtras.h>
 
 namespace WTF {
 
-WTF_EXPORT_PRIVATE PrintStream& dataFile();
+WTF_EXPORT_PRIVATE FilePrintStream& dataFile();
 
 WTF_EXPORT_PRIVATE void dataLogFV(const char* format, va_list) WTF_ATTRIBUTE_PRINTF(1, 0);
 WTF_EXPORT_PRIVATE void dataLogF(const char* format, ...) WTF_ATTRIBUTE_PRINTF(1, 2);

Deleted: trunk/Source/WTF/wtf/LockedPrintStream.cpp (209794 => 209795)


--- trunk/Source/WTF/wtf/LockedPrintStream.cpp	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/wtf/LockedPrintStream.cpp	2016-12-14 09:35:18 UTC (rev 209795)
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 2016 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#include "config.h"
-#include "LockedPrintStream.h"
-
-namespace WTF {
-
-LockedPrintStream::LockedPrintStream(std::unique_ptr<PrintStream> target)
-    : m_target(WTFMove(target))
-{
-}
-
-LockedPrintStream::~LockedPrintStream()
-{
-}
-
-void LockedPrintStream::vprintf(const char* format, va_list args)
-{
-    auto locker = holdLock(m_lock);
-    m_target->vprintf(format, args);
-}
-
-void LockedPrintStream::flush()
-{
-    auto locker = holdLock(m_lock);
-    m_target->flush();
-}
-
-PrintStream& LockedPrintStream::begin()
-{
-    m_lock.lock();
-    return *m_target;
-}
-
-void LockedPrintStream::end()
-{
-    m_lock.unlock();
-}
-
-} // namespace WTF
-

Deleted: trunk/Source/WTF/wtf/LockedPrintStream.h (209794 => 209795)


--- trunk/Source/WTF/wtf/LockedPrintStream.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/wtf/LockedPrintStream.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -1,58 +0,0 @@
-/*
- * Copyright (C) 2016 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#pragma once
-
-#include <wtf/PrintStream.h>
-#include <wtf/RecursiveLockAdapter.h>
-#include <wtf/WordLock.h>
-
-namespace WTF {
-
-// Makes every call to print() atomic.
-class LockedPrintStream : public PrintStream {
-public:
-    LockedPrintStream(std::unique_ptr<PrintStream> target);
-    virtual ~LockedPrintStream();
-    
-    void vprintf(const char* format, va_list) override WTF_ATTRIBUTE_PRINTF(2, 0);
-    void flush() override;
-
-protected:
-    PrintStream& begin() override;
-    void end() override;
-
-private:
-    // This needs to be a recursive lock because a printInternal or dump method could assert,
-    // and that assert might want to log. Better to let it. This needs to be a WordLock so that
-    // LockedPrintStream (i.e. cataLog) can be used to debug ParkingLot and Lock.
-    RecursiveLockAdapter<WordLock> m_lock;
-    std::unique_ptr<PrintStream> m_target;
-};
-
-} // namespace WTF
-
-using WTF::LockedPrintStream;
-

Modified: trunk/Source/WTF/wtf/PrintStream.cpp (209794 => 209795)


--- trunk/Source/WTF/wtf/PrintStream.cpp	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/wtf/PrintStream.cpp	2016-12-14 09:35:18 UTC (rev 209795)
@@ -44,39 +44,10 @@
     va_end(argList);
 }
 
-void PrintStream::printfVariableFormat(const char* format, ...)
-{
-#if COMPILER(CLANG)
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wformat-nonliteral"
-#elif COMPILER(GCC)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wsuggest-attribute=format"
-#endif
-    va_list argList;
-    va_start(argList, format);
-    vprintf(format, argList);
-    va_end(argList);
-#if COMPILER(CLANG)
-#pragma clang diagnostic pop
-#elif COMPILER(GCC)
-#pragma GCC diagnostic pop
-#endif
-}
-
 void PrintStream::flush()
 {
 }
 
-PrintStream& PrintStream::begin()
-{
-    return *this;
-}
-
-void PrintStream::end()
-{
-}
-
 void printInternal(PrintStream& out, const char* string)
 {
     out.printf("%s", string);

Modified: trunk/Source/WTF/wtf/PrintStream.h (209794 => 209795)


--- trunk/Source/WTF/wtf/PrintStream.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/wtf/PrintStream.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -30,7 +30,6 @@
 #include <stdarg.h>
 #include <wtf/FastMalloc.h>
 #include <wtf/Noncopyable.h>
-#include <wtf/Optional.h>
 #include <wtf/RawPointer.h>
 #include <wtf/RefPtr.h>
 #include <wtf/StdLibExtras.h>
@@ -51,7 +50,6 @@
     virtual ~PrintStream();
 
     WTF_EXPORT_PRIVATE void printf(const char* format, ...) WTF_ATTRIBUTE_PRINTF(2, 3);
-    WTF_EXPORT_PRIVATE void printfVariableFormat(const char* format, ...);
     virtual void vprintf(const char* format, va_list) WTF_ATTRIBUTE_PRINTF(2, 0) = 0;
 
     // Typically a no-op for many subclasses of PrintStream, this is a hint that
@@ -58,40 +56,27 @@
     // the implementation should flush its buffers if it had not done so already.
     virtual void flush();
     
-    template<typename Func>
-    void atomically(const Func& func)
+    void print() { }
+
+    template<typename T>
+    void print(const T& value)
     {
-        func(begin());
-        end();
+        printInternal(*this, value);
     }
-    
-    template<typename... Types>
-    void print(const Types&... values)
+
+    template<typename T, typename... Types>
+    void print(const T& value, const Types&... remainingValues)
     {
-        atomically(
-            [&] (PrintStream& out) {
-                out.printImpl(values...);
-            });
+        printInternal(*this, value);
+        print(remainingValues...);
     }
     
     template<typename... Types>
     void println(const Types&... values)
     {
-        print(values..., "\n");
+        print(values...);
+        print("\n");
     }
-
-protected:
-    void printImpl() { }
-
-    template<typename T, typename... Types>
-    void printImpl(const T& value, const Types&... remainingValues)
-    {
-        printInternal(*this, value);
-        printImpl(remainingValues...);
-    }
-    
-    virtual PrintStream& begin();
-    virtual void end();
 };
 
 WTF_EXPORT_PRIVATE void printInternal(PrintStream&, const char*);
@@ -281,66 +266,11 @@
     return ValueIgnoringContext<T, U>(value);
 }
 
-template<unsigned index, typename... Types>
-struct FormatImplUnpacker {
-    template<typename... Args>
-    static void unpack(PrintStream& out, const std::tuple<Types...>& tuple, const Args&... values);
-};
-    
-template<typename... Types>
-struct FormatImplUnpacker<0, Types...> {
-    template<typename... Args>
-    static void unpack(PrintStream& out, const std::tuple<Types...>& tuple, const Args&... values)
-    {
-        out.printfVariableFormat(std::get<0>(tuple), values...);
-    }
-};
-    
-template<unsigned index, typename... Types>
-template<typename... Args>
-void FormatImplUnpacker<index, Types...>::unpack(PrintStream& out, const std::tuple<Types...>& tuple, const Args&... values)
-{
-    FormatImplUnpacker<index - 1, Types...>::unpack(out, tuple, std::get<index>(tuple), values...);
-}
-
-template<typename... Types>
-class FormatImpl {
-public:
-    FormatImpl(Types... values)
-        : m_values(values...)
-    {
-    }
-    
-    void dump(PrintStream& out) const
-    {
-        FormatImplUnpacker<sizeof...(Types) - 1, Types...>::unpack(out, m_values);
-    }
-
-private:
-    std::tuple<Types...> m_values;
-};
-
-template<typename... Types>
-FormatImpl<Types...> format(Types... values)
-{
-    return FormatImpl<Types...>(values...);
-}
-
-template<typename T>
-void printInternal(PrintStream& out, const std::optional<T>& value)
-{
-    if (value)
-        out.print(*value);
-    else
-        out.print("<nullopt>");
-}
-
 } // namespace WTF
 
 using WTF::CharacterDump;
 using WTF::PointerDump;
 using WTF::PrintStream;
-using WTF::format;
 using WTF::ignoringContext;
 using WTF::inContext;
 using WTF::pointerDump;

Deleted: trunk/Source/WTF/wtf/RecursiveLockAdapter.h (209794 => 209795)


--- trunk/Source/WTF/wtf/RecursiveLockAdapter.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/wtf/RecursiveLockAdapter.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -1,93 +0,0 @@
-/*
- * Copyright (C) 2016 Apple Inc.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#pragma once
-
-#include <wtf/Threading.h>
-
-namespace WTF {
-
-template<typename LockType>
-class RecursiveLockAdapter {
-public:
-    RecursiveLockAdapter()
-    {
-    }
-    
-    void lock()
-    {
-        ThreadIdentifier me = currentThread();
-        if (me == m_owner) {
-            m_recursionCount++;
-            return;
-        }
-        
-        m_lock.lock();
-        ASSERT(!m_owner);
-        ASSERT(!m_recursionCount);
-        m_owner = me;
-        m_recursionCount = 1;
-    }
-    
-    void unlock()
-    {
-        if (--m_recursionCount)
-            return;
-        m_owner = 0;
-        m_lock.unlock();
-    }
-    
-    bool tryLock()
-    {
-        ThreadIdentifier me = currentThread();
-        if (me == m_owner) {
-            m_recursionCount++;
-            return true;
-        }
-        
-        if (!m_lock.tryLock())
-            return false;
-        
-        ASSERT(!m_owner);
-        ASSERT(!m_recursionCount);
-        m_owner = me;
-        m_recursionCount = 1;
-        return true;
-    }
-    
-    bool isLocked() const
-    {
-        return m_lock.isLocked();
-    }
-    
-private:
-    ThreadIdentifier m_owner { 0 };
-    unsigned m_recursionCount { 0 };
-    LockType m_lock;
-};
-
-} // namespace WTF
-
-

Modified: trunk/Source/WTF/wtf/WordLock.cpp (209794 => 209795)


--- trunk/Source/WTF/wtf/WordLock.cpp	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/wtf/WordLock.cpp	2016-12-14 09:35:18 UTC (rev 209795)
@@ -26,6 +26,8 @@
 #include "config.h"
 #include "WordLock.h"
 
+#include "DataLog.h"
+#include "StringPrintStream.h"
 #include "ThreadSpecific.h"
 #include "ThreadingPrimitives.h"
 #include <condition_variable>

Modified: trunk/Source/WTF/wtf/WordLock.h (209794 => 209795)


--- trunk/Source/WTF/wtf/WordLock.h	2016-12-14 08:23:23 UTC (rev 209794)
+++ trunk/Source/WTF/wtf/WordLock.h	2016-12-14 09:35:18 UTC (rev 209795)
@@ -42,10 +42,6 @@
 // Lock instead. WordLock sits lower in the stack and is used to implement Lock, so Lock is the main
 // client of WordLock.
 
-// NOTE: This is also a great lock to use if you are very low in the stack. For example,
-// PrintStream uses this so that ParkingLot and Lock can use PrintStream. This means that if you
-// try to use dataLog to debug this code, you will have a bad time.
-
 struct WordLockBase {
     void lock()
     {
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