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2013-10-31 Lucas Forschler <lforschler@apple.com>
Merge r158341
2013-10-30 Filip Pizlo <fpizlo@apple.com>
Assertion failure in js/dom/global-constructors-attributes-dedicated-worker.html
https://bugs.webkit.org/show_bug.cgi?id=123551
<rdar://problem/15356238>
Reviewed by Mark Hahnenberg.
WatchpointSets have always had this "fire everything on deletion" policy because it
seemed like a good fail-safe at the time I first implemented WatchpointSets. But
it's actually causing bugs rather than providing safety:
- Everyone who registers Watchpoints with WatchpointSets have separate mechanisms
for either keeping the WatchpointSets alive or noticing when they are collected.
So this wasn't actually providing any safety.
One example of this is Structures, where:
- CodeBlocks that register Watchpoints on Structure's WatchpointSet will also
register weak references to the Structure, and the GC will jettison a CodeBlock
if the Structure(s) it cares about dies.
- StructureStubInfos that register Watchpoints on Structure's WatchpointSet will
also be cleared by GC if the Structures die.
- The WatchpointSet destructor would get invoked from finalization/destruction.
This would then cause CodeBlock::jettison() to be called on a CodeBlock, but that
method requires doing things that access heap objects. This would usually cause
problems on VM destruction, since then the CodeBlocks would still be alive but the
whole heap would be destroyed.
This also ensures that CodeBlock::jettison() cannot cause a GC. This is safe since
that method doesn't really allocate objects, and it is likely necessary because
jettison() may be called from deep in the stack.
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::jettison):
* bytecode/Watchpoint.cpp:
(JSC::WatchpointSet::~WatchpointSet):
* bytecode/Watchpoint.h:
2013-10-30 Mark Lam <mark.lam@apple.com>
Unreviewed, fix C Loop LLINT build.
* bytecode/CodeBlockJettisoningWatchpoint.cpp:
(JSC::CodeBlockJettisoningWatchpoint::fireInternal):
* bytecode/ProfiledCodeBlockJettisoningWatchpoint.cpp:
(JSC::ProfiledCodeBlockJettisoningWatchpoint::fireInternal):
2013-10-30 Filip Pizlo <fpizlo@apple.com>
Unreviewed, fix FTL build.
* ftl/FTLAbstractHeapRepository.h:
* ftl/FTLLowerDFGToLLVM.cpp:
(JSC::FTL::LowerDFGToLLVM::compileCallOrConstruct):
2013-10-30 Alexey Proskuryakov <ap@apple.com>
Add a way to fulfill promises from DOM code
https://bugs.webkit.org/show_bug.cgi?id=123466
Reviewed by Sam Weinig.
* JavaScriptCore.xcodeproj/project.pbxproj: Make JSPromise.h and JSPromiseResolver.h
private headers for WebCore to use.
* runtime/JSPromise.h:
* runtime/JSPromiseResolver.h:
Export functions that JSDOMPromise will use.
2013-10-30 Mark Lam <mark.lam@apple.com>
Adjust CallFrameHeader's ReturnPC and CallFrame locations to match the native ABI .
https://bugs.webkit.org/show_bug.cgi?id=123444.
Reviewed by Geoffrey Garen.
- Introduced an explicit CallerFrameAndPC struct.
- A CallFrame is expected to start with a CallerFrameAndPC struct.
- The Register class no longer supports CallFrame* and Instruction*.
These hides the differences between JSVALUE32_64 and JSVALUE64 in
terms of managing the callerFrame() and returnPC() values.
- Convert all uses of JSStack::CallerFrame and JSStack::ReturnPC to
go through CallFrame to access the appropriate values and offsets.
CallFrame, in turn, will access the callerFrame and returnPC via
the CallerFrameAndPC struct.
- InlineCallFrame will provide offsets for its callerFrame and
returnPC. It will make use of CallFrame::callerFrameOffset() and
CallerFrame::returnPCOffset() to compute these.
* bytecode/CodeOrigin.h:
(JSC::InlineCallFrame::callerFrameOffset):
(JSC::InlineCallFrame::returnPCOffset):
* dfg/DFGJITCompiler.cpp:
(JSC::DFG::JITCompiler::compileEntry):
(JSC::DFG::JITCompiler::compileExceptionHandlers):
* dfg/DFGOSRExitCompilerCommon.cpp:
(JSC::DFG::reifyInlinedCallFrames):
* dfg/DFGSpeculativeJIT.h:
(JSC::DFG::SpeculativeJIT::calleeFrameSlot):
(JSC::DFG::SpeculativeJIT::calleeArgumentSlot):
(JSC::DFG::SpeculativeJIT::calleeFrameTagSlot):
(JSC::DFG::SpeculativeJIT::calleeFramePayloadSlot):
(JSC::DFG::SpeculativeJIT::calleeArgumentTagSlot):
(JSC::DFG::SpeculativeJIT::calleeArgumentPayloadSlot):
- Prefixed all the above with callee since they apply to the callee frame.
(JSC::DFG::SpeculativeJIT::calleeFrameCallerFrame):
- Added to set the callerFrame pointer in the callee frame.
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::emitCall):
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::emitCall):
(JSC::DFG::SpeculativeJIT::compile):
* ftl/FTLLink.cpp:
(JSC::FTL::compileEntry):
(JSC::FTL::link):
* interpreter/CallFrame.h:
(JSC::ExecState::callerFrame):
(JSC::ExecState::callerFrameOffset):
(JSC::ExecState::returnPC):
(JSC::ExecState::hasReturnPC):
(JSC::ExecState::clearReturnPC):
(JSC::ExecState::returnPCOffset):
(JSC::ExecState::setCallerFrame):
(JSC::ExecState::setReturnPC):
(JSC::ExecState::callerFrameAndPC):
* interpreter/JSStack.h:
* interpreter/Register.h:
* jit/AssemblyHelpers.h:
(JSC::AssemblyHelpers::emitPutToCallFrameHeader):
- Convert to using storePtr() here and simplify the code.
(JSC::AssemblyHelpers::emitGetCallerFrameFromCallFrameHeaderPtr):
(JSC::AssemblyHelpers::emitPutCallerFrameToCallFrameHeader):
(JSC::AssemblyHelpers::emitGetReturnPCFromCallFrameHeaderPtr):
(JSC::AssemblyHelpers::emitPutReturnPCToCallFrameHeader):
- Helpers to emit gets/puts of the callerFrame and returnPC.
(JSC::AssemblyHelpers::addressForByteOffset):
* jit/JIT.cpp:
(JSC::JIT::JIT):
(JSC::JIT::privateCompile):
(JSC::JIT::privateCompileExceptionHandlers):
* jit/JITCall.cpp:
(JSC::JIT::compileCallEval):
(JSC::JIT::compileOpCall):
* jit/JITCall32_64.cpp:
(JSC::JIT::emit_op_ret):
(JSC::JIT::emit_op_ret_object_or_this):
(JSC::JIT::compileCallEval):
(JSC::JIT::compileOpCall):
* jit/JITInlines.h:
(JSC::JIT::unmap):
* jit/JITOpcodes.cpp:
(JSC::JIT::emit_op_end):
(JSC::JIT::emit_op_ret):
(JSC::JIT::emit_op_ret_object_or_this):
* jit/JITOpcodes32_64.cpp:
(JSC::JIT::privateCompileCTINativeCall):
(JSC::JIT::emit_op_end):
* jit/JITOperations.cpp:
* jit/SpecializedThunkJIT.h:
(JSC::SpecializedThunkJIT::returnJSValue):
(JSC::SpecializedThunkJIT::returnDouble):
(JSC::SpecializedThunkJIT::returnInt32):
(JSC::SpecializedThunkJIT::returnJSCell):
* jit/ThunkGenerators.cpp:
(JSC::throwExceptionFromCallSlowPathGenerator):
(JSC::slowPathFor):
(JSC::nativeForGenerator):
* llint/LLIntData.cpp:
(JSC::LLInt::Data::performAssertions):
* llint/LowLevelInterpreter.asm:
- Updated offsets and asserts to match the new CallFrame layout.
2013-10-30 Filip Pizlo <fpizlo@apple.com>
Unreviewed, fix Mac.
* assembler/AbstractMacroAssembler.h:
(JSC::AbstractMacroAssembler::RegisterAllocationOffset::checkOffsets):
(JSC::AbstractMacroAssembler::checkRegisterAllocationAgainstBranchRange):
2013-10-30 Filip Pizlo <fpizlo@apple.com>
Unreviewed, fix Windows.
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::jettison):
2013-10-30 Filip Pizlo <fpizlo@apple.com>
Unreviewed, fix Windows.
* bytecode/CodeBlock.h:
(JSC::CodeBlock::addFrequentExitSite):
2013-10-29 Filip Pizlo <fpizlo@apple.com>
Add InvalidationPoints to the DFG and use them for all watchpoints
https://bugs.webkit.org/show_bug.cgi?id=123472
Reviewed by Mark Hahnenberg.
This makes a fundamental change to how watchpoints work in the DFG.
Previously, a watchpoint was an instruction whose execution semantics were something
like:
if (watchpoint->invalidated)
exit
We would implement this without any branch by using jump replacement.
This is a very good optimization. But it's a bit awkward once you get a lot of
watchpoints: semantically we will have lots of these branches in the code, which the
compiler needs to reason about even though they don't actually result in any emitted
code.
Separately, we also had a mechanism for jettisoning a CodeBlock. This mechanism would
be invoked if a CodeBlock exited a lot. It would ensure that a CodeBlock wouldn't be
called into again, but it would do nothing for CodeBlocks that were already on the
stack.
This change flips jettisoning and watchpoint invalidation on their heads. Now, the jump
replacement has nothing to do with watchpoints; instead it's something that happens if
you ever jettison a CodeBlock. Jump replacement is now an all-or-nothing operation over
all of the potential call-return safe-exit-points in a CodeBlock. We call these
"InvalidationPoint"s. A watchpoint instruction is now "lowered" by having the DFG
collect all of the watchpoint sets that the CodeBlock cares about, and then registering
a CodeBlockJettisoningWatchpoint with all of them. That is, if the watchpoint fires, it
jettisons the CodeBlock, which in turn ensures that the CodeBlock can't be called into
(because the entrypoint now points to baseline code) and can't be returned into
(because returning exits to baseline before the next bytecode instruction).
This will allow for a sensible lowering of watchpoints to LLVM IR. It will also allow
for jettison() to be used effectively for things like breakpointing and single-stepping
in the debugger.
Well, basically, this mechanism just takes us into the HotSpot-style world where anyone
can, at any time and for any reason, request that an optimized CodeBlock is rendered
immediately invalid. You can use this for many cool things, I'm sure.
* CMakeLists.txt:
* GNUmakefile.list.am:
* JavaScriptCore.vcxproj/JavaScriptCore.vcxproj:
* JavaScriptCore.xcodeproj/project.pbxproj:
* assembler/AbstractMacroAssembler.h:
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::jettison):
* bytecode/CodeBlock.h:
* bytecode/CodeBlockJettisoningWatchpoint.cpp: Added.
(JSC::CodeBlockJettisoningWatchpoint::fireInternal):
* bytecode/CodeBlockJettisoningWatchpoint.h: Added.
(JSC::CodeBlockJettisoningWatchpoint::CodeBlockJettisoningWatchpoint):
* bytecode/ExitKind.cpp:
(JSC::exitKindToString):
* bytecode/ExitKind.h:
* bytecode/ProfiledCodeBlockJettisoningWatchpoint.cpp: Added.
(JSC::ProfiledCodeBlockJettisoningWatchpoint::fireInternal):
* bytecode/ProfiledCodeBlockJettisoningWatchpoint.h: Added.
(JSC::ProfiledCodeBlockJettisoningWatchpoint::ProfiledCodeBlockJettisoningWatchpoint):
* dfg/DFGAbstractHeap.h:
* dfg/DFGAbstractInterpreterInlines.h:
(JSC::DFG::::executeEffects):
* dfg/DFGClobberize.cpp:
(JSC::DFG::writesOverlap):
* dfg/DFGClobberize.h:
(JSC::DFG::clobberize):
(JSC::DFG::AbstractHeapOverlaps::AbstractHeapOverlaps):
(JSC::DFG::AbstractHeapOverlaps::operator()):
(JSC::DFG::AbstractHeapOverlaps::result):
* dfg/DFGCommonData.cpp:
(JSC::DFG::CommonData::invalidate):
* dfg/DFGCommonData.h:
(JSC::DFG::CommonData::CommonData):
* dfg/DFGDesiredWatchpoints.cpp:
(JSC::DFG::DesiredWatchpoints::addLazily):
(JSC::DFG::DesiredWatchpoints::reallyAdd):
* dfg/DFGDesiredWatchpoints.h:
(JSC::DFG::WatchpointForGenericWatchpointSet::WatchpointForGenericWatchpointSet):
(JSC::DFG::GenericDesiredWatchpoints::addLazily):
(JSC::DFG::GenericDesiredWatchpoints::reallyAdd):
(JSC::DFG::GenericDesiredWatchpoints::areStillValid):
* dfg/DFGFixupPhase.cpp:
(JSC::DFG::FixupPhase::fixupNode):
* dfg/DFGInvalidationPointInjectionPhase.cpp: Added.
(JSC::DFG::InvalidationPointInjectionPhase::InvalidationPointInjectionPhase):
(JSC::DFG::InvalidationPointInjectionPhase::run):
(JSC::DFG::InvalidationPointInjectionPhase::handle):
(JSC::DFG::InvalidationPointInjectionPhase::insertInvalidationCheck):
(JSC::DFG::performInvalidationPointInjection):
* dfg/DFGInvalidationPointInjectionPhase.h: Added.
* dfg/DFGJITCode.h:
* dfg/DFGJITCompiler.cpp:
(JSC::DFG::JITCompiler::linkOSRExits):
(JSC::DFG::JITCompiler::link):
* dfg/DFGJITCompiler.h:
* dfg/DFGJumpReplacement.cpp: Added.
(JSC::DFG::JumpReplacement::fire):
* dfg/DFGJumpReplacement.h: Added.
(JSC::DFG::JumpReplacement::JumpReplacement):
* dfg/DFGNodeType.h:
* dfg/DFGOSRExitCompilationInfo.h:
* dfg/DFGOperations.cpp:
* dfg/DFGPlan.cpp:
(JSC::DFG::Plan::compileInThreadImpl):
(JSC::DFG::Plan::reallyAdd):
* dfg/DFGPredictionPropagationPhase.cpp:
(JSC::DFG::PredictionPropagationPhase::propagate):
* dfg/DFGSafeToExecute.h:
(JSC::DFG::safeToExecute):
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::emitInvalidationPoint):
(JSC::DFG::SpeculativeJIT::compilePeepHoleObjectEquality):
(JSC::DFG::SpeculativeJIT::compileGetByValOnString):
* dfg/DFGSpeculativeJIT.h:
(JSC::DFG::SpeculativeJIT::masqueradesAsUndefinedWatchpointIsStillValid):
(JSC::DFG::SpeculativeJIT::speculateStringObjectForStructure):
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::nonSpeculativeNonPeepholeCompareNull):
(JSC::DFG::SpeculativeJIT::nonSpeculativePeepholeBranchNull):
(JSC::DFG::SpeculativeJIT::compileObjectEquality):
(JSC::DFG::SpeculativeJIT::compileObjectToObjectOrOtherEquality):
(JSC::DFG::SpeculativeJIT::compilePeepHoleObjectToObjectOrOtherEquality):
(JSC::DFG::SpeculativeJIT::compileObjectOrOtherLogicalNot):
(JSC::DFG::SpeculativeJIT::emitObjectOrOtherBranch):
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::nonSpeculativeNonPeepholeCompareNull):
(JSC::DFG::SpeculativeJIT::nonSpeculativePeepholeBranchNull):
(JSC::DFG::SpeculativeJIT::compileObjectEquality):
(JSC::DFG::SpeculativeJIT::compileObjectToObjectOrOtherEquality):
(JSC::DFG::SpeculativeJIT::compilePeepHoleObjectToObjectOrOtherEquality):
(JSC::DFG::SpeculativeJIT::compileObjectOrOtherLogicalNot):
(JSC::DFG::SpeculativeJIT::emitObjectOrOtherBranch):
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGWatchpointCollectionPhase.cpp: Added.
(JSC::DFG::WatchpointCollectionPhase::WatchpointCollectionPhase):
(JSC::DFG::WatchpointCollectionPhase::run):
(JSC::DFG::WatchpointCollectionPhase::handle):
(JSC::DFG::WatchpointCollectionPhase::handleEdge):
(JSC::DFG::WatchpointCollectionPhase::handleMasqueradesAsUndefined):
(JSC::DFG::WatchpointCollectionPhase::handleStringGetByVal):
(JSC::DFG::WatchpointCollectionPhase::addLazily):
(JSC::DFG::WatchpointCollectionPhase::globalObject):
(JSC::DFG::performWatchpointCollection):
* dfg/DFGWatchpointCollectionPhase.h: Added.
* ftl/FTLCapabilities.cpp:
(JSC::FTL::canCompile):
* ftl/FTLLowerDFGToLLVM.cpp:
(JSC::FTL::LowerDFGToLLVM::compileNode):
(JSC::FTL::LowerDFGToLLVM::compileStructureTransitionWatchpoint):
(JSC::FTL::LowerDFGToLLVM::compileGetByVal):
(JSC::FTL::LowerDFGToLLVM::compileGlobalVarWatchpoint):
(JSC::FTL::LowerDFGToLLVM::compileCompareEqConstant):
(JSC::FTL::LowerDFGToLLVM::compileCompareStrictEq):
(JSC::FTL::LowerDFGToLLVM::compileCompareStrictEqConstant):
(JSC::FTL::LowerDFGToLLVM::compileInvalidationPoint):
(JSC::FTL::LowerDFGToLLVM::equalNullOrUndefined):
(JSC::FTL::LowerDFGToLLVM::speculateNonNullObject):
* jit/JITOperations.cpp:
* jit/JumpReplacementWatchpoint.cpp: Removed.
* jit/JumpReplacementWatchpoint.h: Removed.
2013-10-25 Mark Hahnenberg <mhahnenberg@apple.com>
JSExport doesn't support constructors
https://bugs.webkit.org/show_bug.cgi?id=123380
Reviewed by Geoffrey Garen.
Support for constructor-style callbacks for the Objective-C API to JSC is currently limited to
Objective-C blocks. Any clients who try to call the constructor of a JSExport-ed Objective-C class
are met with a type error stating that it cannot be called as a constructor.
It would be nice to expand JSExport's functionality to support this idiom. It is a natural
extension to JSExport and would increase the expressiveness and simplicity in both Objective-C and
JavaScript client code.
The way we'll do this is to expand the capabilities of ObjCCallbackFunction and associated classes.
Instead of constructing a normal C API object for the constructor, we'll instead allocate a full-blown
ObjCCallbackFunction object which can already properly handle being invoked as a constructor.
* API/JSWrapperMap.mm:
(copyMethodsToObject):
(allocateConstructorForCustomClass):
(-[JSObjCClassInfo allocateConstructorAndPrototypeWithSuperClassInfo:]):
(tryUnwrapObjcObject):
* API/ObjCCallbackFunction.h:
(JSC::ObjCCallbackFunction::impl):
* API/ObjCCallbackFunction.mm:
(JSC::ObjCCallbackFunctionImpl::ObjCCallbackFunctionImpl):
(JSC::ObjCCallbackFunctionImpl::wrappedConstructor):
(JSC::ObjCCallbackFunctionImpl::isConstructible):
(JSC::ObjCCallbackFunction::getConstructData):
(JSC::ObjCCallbackFunctionImpl::name):
(JSC::ObjCCallbackFunctionImpl::call):
(objCCallbackFunctionForInvocation):
(objCCallbackFunctionForInit):
(tryUnwrapConstructor):
* API/tests/testapi.mm:
(-[TextXYZ initWithString:]):
(-[ClassA initWithA:]):
(-[ClassB initWithA:b:]):
(-[ClassC initWithA:]):
(-[ClassC initWithA:b:]):
2013-10-30 peavo@outlook.com <peavo@outlook.com>
[Win] Compile errors when enabling DFG JIT.
https://bugs.webkit.org/show_bug.cgi?id=120998
Reviewed by Brent Fulgham.
* JavaScriptCore.vcxproj/JavaScriptCore.vcxproj: Added files.
* JavaScriptCore.vcxproj/JavaScriptCore.vcxproj.filters: Ditto.
* dfg/DFGAllocator.h: Removed scope.
* dfg/DFGWorklist.cpp: Use new ThreadingOnce class instead of pthread_once.
(JSC::DFG::globalWorklist):
* heap/DeferGC.h: Link fix, member needs to be public.
* jit/JITOperationWrappers.h: Added required assembler macros.
2013-10-30 Iago Toral Quiroga <itoral@igalia.com>
Add result caching for Math.cos
https://bugs.webkit.org/show_bug.cgi?id=123255
Reviewed by Brent Fulgham.
* runtime/MathObject.cpp:
(JSC::mathProtoFuncCos):
* runtime/VM.h:
2013-10-30 Alex Christensen <achristensen@webkit.org>
Disabled JIT on Win64.
https://bugs.webkit.org/show_bug.cgi?id=122472
Reviewed by Geoffrey Garen.
* JavaScriptCore.vcxproj/JavaScriptCore.vcxproj:
Disabled building JITStubsMSVC64.
2013-10-29 Michael Saboff <msaboff@apple.com>
Change local variable register allocation to start at offset -1
https://bugs.webkit.org/show_bug.cgi?id=123182
Reviewed by Geoffrey Garen.
Adjusted the virtual register mapping down by one slot. Reduced
the CallFrame header slots offsets by one. They now start at 0.
Changed arity fixup to no longer skip passed register slot 0 as this
is now part of the CallFrame header.
* bytecode/VirtualRegister.h:
(JSC::operandIsLocal):
(JSC::operandIsArgument):
(JSC::VirtualRegister::localToOperand):
(JSC::VirtualRegister::operandToLocal):
Adjusted functions for shift in mapping from local to register offset.
* dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::findArgumentPositionForLocal):
(JSC::DFG::ByteCodeParser::addCall):
(JSC::DFG::ByteCodeParser::handleInlining):
(JSC::DFG::ByteCodeParser::parseBlock):
* dfg/DFGVariableEventStream.cpp:
(JSC::DFG::VariableEventStream::reconstruct):
* dfg/DFGVirtualRegisterAllocationPhase.cpp:
(JSC::DFG::VirtualRegisterAllocationPhase::run):
* interpreter/CallFrame.h:
(JSC::ExecState::frameExtent):
(JSC::ExecState::offsetFor):
* interpreter/Interpreter.cpp:
(JSC::loadVarargs):
(JSC::Interpreter::dumpRegisters):
(JSC::Interpreter::executeCall):
* llint/LLIntData.cpp:
(JSC::LLInt::Data::performAssertions):
* llint/LowLevelInterpreter.asm:
Adjusted math to accomodate for shift in call frame slots.
* dfg/DFGJITCompiler.cpp:
(JSC::DFG::JITCompiler::compileFunction):
* dfg/DFGSpeculativeJIT.h:
(JSC::DFG::SpeculativeJIT::calleeFrameOffset):
* interpreter/CallFrame.cpp:
(JSC::CallFrame::frameExtentInternal):
* interpreter/JSStackInlines.h:
(JSC::JSStack::pushFrame):
* jit/JIT.cpp:
(JSC::JIT::privateCompile):
* jit/JITOperations.cpp:
* llint/LLIntSlowPaths.cpp:
(JSC::LLInt::llint_slow_path_stack_check):
* runtime/CommonSlowPaths.h:
(JSC::CommonSlowPaths::arityCheckFor):
Fixed offset calculation to use VirtualRegister and related calculation instead of
doing seperate calculations.
* interpreter/JSStack.h:
Adjusted CallFrame slots down by one. Did some miscellaneous fixing of dumpRegisters()
in the process of testing the fixes.
* jit/ThunkGenerators.cpp:
(JSC::arityFixup):
Changed arity fixup to no longer skip passed register slot 0 as this
is now part of the CallFrame header.
* llint/LowLevelInterpreter32_64.asm:
* llint/LowLevelInterpreter64.asm:
Changed arity fixup to no longer skip passed register slot 0 as this
is now part of the CallFrame header. Updated op_enter processing for
the change in local registers.
* runtime/JSGlobalObject.h:
Removed the now unneeded extra slot in the global callframe
2013-10-29 Julien Brianceau <jbriance@cisco.com>
[arm] Fix lots of crashes because of 4th argument register trampling.
https://bugs.webkit.org/show_bug.cgi?id=123421
Reviewed by Michael Saboff.
r3 register is the 4th argument register for ARM and also a scratch
register in the baseline JIT for this architecture. We can use r6
instead, as this used to be the timeoutCheckRegister and it is no
longer used since r148119.
* assembler/ARMAssembler.h: Temp register is now r6 instead of r3 for ARM.
* assembler/MacroAssemblerARMv7.h: Temp register is now r6 instead of r3 for ARMv7.
* jit/GPRInfo.h: Add r3 properly in GPRInfo for ARM.
(JSC::GPRInfo::toRegister):
(JSC::GPRInfo::toIndex):
* jit/JITStubsARM.h:
(JSC::ctiTrampoline): Remove obsolete timeoutCheckRegister init.
* jit/JITStubsARMv7.h:
(JSC::ctiTrampoline): Remove obsolete timeoutCheckRegister init.
* jit/JSInterfaceJIT.h: Remove useless stuff.
* yarr/YarrJIT.cpp: Use r3 and not the new scratch register r6.
(JSC::Yarr::YarrGenerator::generateEnter): r8 register doesn't need to be saved.
(JSC::Yarr::YarrGenerator::generateReturn):
2013-10-29 Julien Brianceau <jbriance@cisco.com>
Fix CPU(ARM_TRADITIONAL) build after r157690.
https://bugs.webkit.org/show_bug.cgi?id=123247
Reviewed by Michael Saboff.
Since r157690, the executableCopy function has been removed from AssemblerBuffer.h
and the copy of executable code occurs in the linkCode function (in LinkBuffer.cpp).
As the constant pool for jumps is updated in the executableCopy function of ARM_TRADITIONAL,
this part of code still needs to be called and absolute jumps must be corrected to anticipate
the copy of the executable code through memcpy.
* assembler/ARMAssembler.cpp:
(JSC::ARMAssembler::prepareExecutableCopy): Rename executableCopy to prepareExecutableCopy
and correct absolute jump values using the delta between the source and destination buffers.
* assembler/ARMAssembler.h:
* assembler/LinkBuffer.cpp:
(JSC::LinkBuffer::linkCode): Call prepareExecutableCopy just before the memcpy.
2013-10-28 Filip Pizlo <fpizlo@apple.com>
OSRExit::m_watchpointIndex should be in OSRExitCompilationInfo
https://bugs.webkit.org/show_bug.cgi?id=123423
Reviewed by Mark Hahnenberg.
Also enable ExitKind to tell you if it's a watchpoint.
* bytecode/ExitKind.cpp:
(JSC::exitKindToString):
* bytecode/ExitKind.h:
(JSC::isWatchpoint):
* dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::setLocal):
(JSC::DFG::ByteCodeParser::setArgument):
(JSC::DFG::ByteCodeParser::handleCall):
(JSC::DFG::ByteCodeParser::handleGetById):
(JSC::DFG::ByteCodeParser::parseBlock):
* dfg/DFGJITCompiler.cpp:
(JSC::DFG::JITCompiler::linkOSRExits):
(JSC::DFG::JITCompiler::link):
* dfg/DFGJITCompiler.h:
(JSC::DFG::JITCompiler::appendExitInfo):
* dfg/DFGOSRExit.cpp:
(JSC::DFG::OSRExit::OSRExit):
* dfg/DFGOSRExit.h:
* dfg/DFGOSRExitCompilationInfo.h:
(JSC::DFG::OSRExitCompilationInfo::OSRExitCompilationInfo):
* dfg/DFGOSRExitCompiler.cpp:
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::speculationWatchpoint):
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
2013-10-28 Myles C. Maxfield <mmaxfield@apple.com>
Parsing support for -webkit-text-decoration-skip: ink
https://bugs.webkit.org/show_bug.cgi?id=123358
Reviewed by Dean Jackson.
Adding ENABLE(CSS3_TEXT_DECORATION)
* Configurations/FeatureDefines.xcconfig:
2013-10-24 Filip Pizlo <fpizlo@apple.com>
Get rid of InlineStart so that I don't have to implement it in FTL
https://bugs.webkit.org/show_bug.cgi?id=123302
Reviewed by Geoffrey Garen.
InlineStart was a special instruction that we would insert at the top of inlined code,
so that the backend could capture the OSR state of arguments to an inlined call. It used
to be that only the backend had this information, so this instruction was sort of an ugly
callback from the backend for filling in some data structures.
But in the time since when that code was written (two years ago?), we rationalized how
variables work. It's now the case that variables that the runtime must know about are
treated specially in IR (they are "flushed") and we know how we will represent them even
before we get to the backend. The last place that makes changes to their representation
is the StackLayoutPhase.
So, this patch gets rid of InlineStart, but keeps around the special meta-data that the
instruction had. Instead of handling the bookkeeping in the backend, we handle it in
StackLayoutPhase. This means that the DFG and FTL can share code for handling this
bookkeeping. This also means that now the FTL can compile code blocks that had inlining.
Of course, giving the FTL the ability to handle code blocks that had inlining means that
we're going to have new bugs. Sure enough, the FTL's linker didn't handle inline call
frames. This patch also fixes that.
* dfg/DFGAbstractInterpreterInlines.h:
(JSC::DFG::::executeEffects):
* dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::handleInlining):
(JSC::DFG::ByteCodeParser::InlineStackEntry::InlineStackEntry):
* dfg/DFGClobberize.h:
(JSC::DFG::clobberize):
* dfg/DFGFixupPhase.cpp:
(JSC::DFG::FixupPhase::fixupNode):
* dfg/DFGGraph.h:
* dfg/DFGNode.h:
* dfg/DFGNodeType.h:
* dfg/DFGPredictionPropagationPhase.cpp:
(JSC::DFG::PredictionPropagationPhase::propagate):
* dfg/DFGSafeToExecute.h:
(JSC::DFG::safeToExecute):
* dfg/DFGSpeculativeJIT.cpp:
* dfg/DFGSpeculativeJIT.h:
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGStackLayoutPhase.cpp:
(JSC::DFG::StackLayoutPhase::run):
* ftl/FTLLink.cpp:
(JSC::FTL::link):
2013-10-24 Filip Pizlo <fpizlo@apple.com>
The GetById->GetByOffset AI-based optimization should actually do things
https://bugs.webkit.org/show_bug.cgi?id=123299
Reviewed by Oliver Hunt.
20% speed-up on Octane/gbemu.
* bytecode/GetByIdStatus.cpp:
(JSC::GetByIdStatus::computeFor): Actually finish filling in the Status by setting the state. Previously it would remain set to NoInformation, meaning that this whole method was a no-op.
2013-10-28 Carlos Garcia Campos <cgarcia@igalia.com>
Unreviewed. Fix make distcheck.
* GNUmakefile.list.am: Add missing files to compilation.
2013-10-25 Oliver Hunt <oliver@apple.com>
Refactor parser rollback logic
https://bugs.webkit.org/show_bug.cgi?id=123372
Reviewed by Brady Eidson.
Add a sane abstraction for rollbacks in the parser.
* parser/Parser.cpp:
(JSC::::parseSourceElements):
(JSC::::parseObjectLiteral):
* parser/Parser.h:
(JSC::Parser::createSavePoint):
(JSC::Parser::restoreSavePoint):
2013-10-25 peavo@outlook.com <peavo@outlook.com>
[Win] Javascript crash with DFG JIT enabled.
https://bugs.webkit.org/show_bug.cgi?id=121001
Reviewed by Geoffrey Garen.
On windows, using register GPRInfo::regT0 as parameter to e.g. JIT::storeDouble(..., GPRInfo::regT0)),
results in a call to JIT::storeDouble(FPRegisterID src, const void* address),
where the address parameter gets the value of GPRInfo::regT0, which is 0 (eax on Windows).
This causes the register to be written to address 0, hence the crash.
* assembler/MacroAssemblerX86.h:
(JSC::MacroAssemblerX86::storeDouble): Assert if we try to generate code which writes to a null pointer.
* dfg/DFGOSRExitCompiler32_64.cpp:
(JSC::DFG::OSRExitCompiler::compileExit): Use address in regT0 as parameter.
* dfg/DFGThunks.cpp:
(JSC::DFG::osrExitGenerationThunkGenerator): Ditto.
2013-10-25 Oliver Hunt <oliver@apple.com>
Fix a number of problems with destructuring of arguments
https://bugs.webkit.org/show_bug.cgi?id=123357
Reviewed by Filip Pizlo.
This renames the destructuring node's emitBytecode to bindValue
in order to remove the existing confusion over what was happening.
We then fix an incorrect fall through in the destructuring arguments
logic, and fix the then exposed bug where we placed the index rather
than value into the bound property.
* bytecompiler/BytecodeGenerator.cpp:
(JSC::BytecodeGenerator::BytecodeGenerator):
* bytecompiler/NodesCodegen.cpp:
(JSC::ForInNode::emitBytecode):
(JSC::ForOfNode::emitBytecode):
(JSC::DeconstructingAssignmentNode::emitBytecode):
(JSC::ArrayPatternNode::bindValue):
(JSC::ArrayPatternNode::emitDirectBinding):
(JSC::ObjectPatternNode::bindValue):
(JSC::BindingNode::bindValue):
* parser/Nodes.h:
2013-10-25 Joseph Pecoraro <pecoraro@apple.com>
Upstream ENABLE(REMOTE_INSPECTOR) and enable on iOS and Mac
https://bugs.webkit.org/show_bug.cgi?id=123111
Reviewed by Timothy Hatcher.
* Configurations/FeatureDefines.xcconfig:
2013-10-25 Oliver Hunt <oliver@apple.com>
Fix MSVC again
* parser/Parser.cpp:
2013-10-25 Oliver Hunt <oliver@apple.com>
Fix MSVC
* parser/Parser.cpp:
2013-10-25 Oliver Hunt <oliver@apple.com>
Improve JSC Parser error messages
https://bugs.webkit.org/show_bug.cgi?id=123341
Reviewed by Andreas Kling.
This patch moves away from the current cludgy mechanisms used to produce
error messages and moves to something closer to case by case errors.
This results in a large change size as previously we may just have
'failIfFalse(foo)', but now the logic becomes either
'failIfFalseWithMessage(foo, "Cannot do blah with ", foo->thing())'
Or alternatively
if (!foo)
check for 'interesting' errors, before falling back to generic error
This means that this patch is large, but produces no semantic changes, and
only hits slow (e.g. error) paths.
* parser/Parser.cpp:
(JSC::::Parser):
(JSC::::parseSourceElements):
(JSC::::parseVarDeclaration):
(JSC::::parseConstDeclaration):
(JSC::::parseDoWhileStatement):
(JSC::::parseWhileStatement):
(JSC::::parseVarDeclarationList):
(JSC::::createBindingPattern):
(JSC::::parseDeconstructionPattern):
(JSC::::parseConstDeclarationList):
(JSC::::parseForStatement):
(JSC::::parseBreakStatement):
(JSC::::parseContinueStatement):
(JSC::::parseReturnStatement):
(JSC::::parseThrowStatement):
(JSC::::parseWithStatement):
(JSC::::parseSwitchStatement):
(JSC::::parseSwitchClauses):
(JSC::::parseSwitchDefaultClause):
(JSC::::parseTryStatement):
(JSC::::parseDebuggerStatement):
(JSC::::parseBlockStatement):
(JSC::::parseStatement):
(JSC::::parseFormalParameters):
(JSC::::parseFunctionBody):
(JSC::stringForFunctionMode):
(JSC::::parseFunctionInfo):
(JSC::::parseFunctionDeclaration):
(JSC::::parseExpressionOrLabelStatement):
(JSC::::parseExpressionStatement):
(JSC::::parseIfStatement):
(JSC::::parseExpression):
(JSC::::parseAssignmentExpression):
(JSC::::parseConditionalExpression):
(JSC::::parseBinaryExpression):
(JSC::::parseProperty):
(JSC::::parseObjectLiteral):
(JSC::::parseStrictObjectLiteral):
(JSC::::parseArrayLiteral):
(JSC::::parsePrimaryExpression):
(JSC::::parseArguments):
(JSC::::parseMemberExpression):
(JSC::operatorString):
(JSC::::parseUnaryExpression):
(JSC::::printUnexpectedTokenText):
* parser/Parser.h:
(JSC::Scope::hasDeclaredVariable):
(JSC::Scope::hasDeclaredParameter):
(JSC::Parser::hasDeclaredVariable):
(JSC::Parser::hasDeclaredParameter):
(JSC::Parser::setErrorMessage):
2013-10-24 Mark Rowe <mrowe@apple.com>
Remove references to OS X 10.7 from Xcode configuration settings.
Now that we're not building for OS X 10.7 they're no longer needed.
Reviewed by Anders Carlsson.
* Configurations/Base.xcconfig:
* Configurations/DebugRelease.xcconfig:
* Configurations/FeatureDefines.xcconfig:
* Configurations/Version.xcconfig:
2013-10-24 Mark Rowe <mrowe@apple.com>
<rdar://problem/15312643> Prepare for the mysterious future.
Reviewed by David Kilzer.
* Configurations/Base.xcconfig:
* Configurations/DebugRelease.xcconfig:
* Configurations/FeatureDefines.xcconfig:
* Configurations/Version.xcconfig:
2013-10-24 Mark Lam <mark.lam@apple.com>
Better way to fix part of broken C Loop LLINT build.
https://bugs.webkit.org/show_bug.cgi?id=123271.
Reviewed by Geoffrey Garen.
Undoing offline asm hackery.
* llint/LowLevelInterpreter.cpp:
* llint/LowLevelInterpreter32_64.asm:
* llint/LowLevelInterpreter64.asm:
* offlineasm/cloop.rb:
* offlineasm/instructions.rb:
2013-10-24 Mark Lam <mark.lam@apple.com>
Fix broken C Loop LLINT build.
https://bugs.webkit.org/show_bug.cgi?id=123271.
Reviewed by Michael Saboff.
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::printGetByIdCacheStatus): Added an UNUSED_PARAM().
(JSC::CodeBlock::dumpBytecode): Added #if ENABLE(JIT) to JIT only code.
* bytecode/GetByIdStatus.cpp:
(JSC::GetByIdStatus::computeFor): Added an UNUSED_PARAM().
* bytecode/PutByIdStatus.cpp:
(JSC::PutByIdStatus::computeFor): Added an UNUSED_PARAM().
* bytecode/StructureStubInfo.h:
- Added a stub StubInfoMap for non-JIT builds. StubInfoMap is still used
in function prototypes even when !ENABLE(JIT). Rather that adding #if's
in many places, we just provide a stub/placeholder implementation that
is unused but keeps the compiler happy.
* jit/JITOperations.h: Added #if ENABLE(JIT).
* llint/LowLevelInterpreter32_64.asm:
* llint/LowLevelInterpreter64.asm:
- The putByVal() macro reifies a slow path which is never taken in one case.
This translates into a label that is never used in the C Loop LLINT. The
C++ compiler doesn't like unused labels. So, we fix this by adding a
cloopUnusedLabel offline asm instruction that synthesizes the following:
if (false) goto unusedLabel;
This keeps the C++ compiler happy without changing code behavior.
* offlineasm/cloop.rb: Implementing cloopUnusedLabel.
* offlineasm/instructions.rb: Declaring cloopUnusedLabel.
* runtime/Executable.cpp:
(JSC::setupJIT): Added UNUSED_PARAM()s.
(JSC::ScriptExecutable::prepareForExecutionImpl):
- run-javascriptcore-tests have phases that forces the LLINT to be off
which in turn asserts that the JIT is enabled. With the C Loop LLINT,
this combination is illegal. So, we override the setup code here to
always use the LLINT if !ENABLE(JIT) regardless of what options are
passed in.
2013-10-24 peavo@outlook.com <peavo@outlook.com>
Uninitialized member causes crash when DFG JIT is not enabled.
https://bugs.webkit.org/show_bug.cgi?id=123270
Reviewed by Brent Fulgham.
The data member sizeOfLastScratchBuffer in the VM class is only initialized if DFG JIT is enabled, even though it's defined regardless.
This causes an early crash on Windows, which doesn't have DFG JIT enabled.
* runtime/VM.cpp:
(JSC::VM::VM): Initialize sizeOfLastScratchBuffer member regardless of whether DFG JIT is enabled.
2013-10-24 Ryuan Choi <ryuan.choi@samsung.com>
[EFL] Build break with latest EFL 1.8 libraries.
https://bugs.webkit.org/show_bug.cgi?id=123245
Reviewed by Gyuyoung Kim.
After fixed build break on EFL 1.8 at r138326, EFL libraries are changed
Eo typedef and splitted header files which contain version macro.
* PlatformEfl.cmake: Added EO path to include directories.
* heap/HeapTimer.h: Changed Ecore_Timer typedef when EO exist.
2013-10-23 Filip Pizlo <fpizlo@apple.com>
Put all uses of LLVM intrinsics behind a single Option
https://bugs.webkit.org/show_bug.cgi?id=123219
Reviewed by Mark Hahnenberg.
* ftl/FTLExitThunkGenerator.cpp:
(JSC::FTL::ExitThunkGenerator::emitThunk):
* ftl/FTLLowerDFGToLLVM.cpp:
(JSC::FTL::generateExitThunks):
(JSC::FTL::LowerDFGToLLVM::compileGetById):
(JSC::FTL::LowerDFGToLLVM::emitOSRExitCall):
(JSC::FTL::LowerDFGToLLVM::addExitArgumentForNode):
* ftl/FTLOSRExitCompiler.cpp:
(JSC::FTL::compileFTLOSRExit):
* runtime/Options.h:
2013-10-23 Daniel Bates <dabates@apple.com>
Fix JavaScriptCore build targets following <http://trac.webkit.org/changeset/157864>
(https://bugs.webkit.org/show_bug.cgi?id=123169)
Tell Xcode that the supported platforms for all JavaScriptCore targets are iOS and OS X.
* Configurations/Base.xcconfig:
2013-10-23 Michael Saboff <msaboff@apple.com>
LLInt arity check exception processing should start unwinding from caller
https://bugs.webkit.org/show_bug.cgi?id=123209
Reviewed by Oliver Hunt.
Use the caller frame returned from slow_path_call_arityCheck to process exceptions.
* llint/LowLevelInterpreter32_64.asm:
* llint/LowLevelInterpreter64.asm:
2013-10-22 Filip Pizlo <fpizlo@apple.com>
FTL should be able to do some simple inline caches using LLVM patchpoints