source: webkit/trunk/JavaScriptCore/JavaScriptCore.exp@ 36821

Last change on this file since 36821 was 36821, checked in by [email protected], 17 years ago

2008-09-23 Geoffrey Garen <​[email protected]>

Reviewed by Darin Adler.


Changed the layout of the call frame from


{ header, parameters, locals | constants, temporaries }


to


{ parameters, header | locals, constants, temporaries }


This simplifies function entry+exit, and enables a number of future
optimizations.


13.5% speedup on empty call benchmark for bytecode; 23.6% speedup on
empty call benchmark for CTI.


SunSpider says no change. SunSpider --v8 says 1% faster.

  • VM/CTI.cpp:


Added a bit of abstraction for calculating whether a register is a
constant, since this patch changes that calculation:
(JSC::CTI::isConstant):
(JSC::CTI::getConstant):
(JSC::CTI::emitGetArg):
(JSC::CTI::emitGetPutArg):
(JSC::CTI::getConstantImmediateNumericArg):

Updated for changes to callframe header location:
(JSC::CTI::emitPutToCallFrameHeader):
(JSC::CTI::emitGetFromCallFrameHeader):
(JSC::CTI::printOpcodeOperandTypes):


Renamed to spite Oliver:
(JSC::CTI::emitInitRegister):


Added an abstraction for emitting a call through a register, so that
calls through registers generate exception info, too:
(JSC::CTI::emitCall):

Updated to match the new callframe header layout, and to support calls
through registers, which have no destination address:
(JSC::CTI::compileOpCall):
(JSC::CTI::privateCompileMainPass):
(JSC::CTI::privateCompileSlowCases):
(JSC::CTI::privateCompile):

  • VM/CTI.h:

More of the above:
(JSC::CallRecord::CallRecord):

  • VM/CodeBlock.cpp:

Updated for new register layout:
(JSC::registerName):
(JSC::CodeBlock::dump):

  • VM/CodeBlock.h:


Updated CodeBlock to track slightly different information about the
register frame, and tweaked the style of an ASSERT_NOT_REACHED.
(JSC::CodeBlock::CodeBlock):
(JSC::CodeBlock::getStubInfo):

  • VM/CodeGenerator.cpp:


Added some abstraction around constant register allocation, since this
patch changes it, changed codegen to account for the new callframe
layout, and added abstraction around register fetching code
that used to assume that all local registers lived at negative indices,
since vars now live at positive indices:
(JSC::CodeGenerator::generate):
(JSC::CodeGenerator::addVar):
(JSC::CodeGenerator::addGlobalVar):
(JSC::CodeGenerator::allocateConstants):
(JSC::CodeGenerator::CodeGenerator):
(JSC::CodeGenerator::addParameter):
(JSC::CodeGenerator::registerFor):
(JSC::CodeGenerator::constRegisterFor):
(JSC::CodeGenerator::newRegister):
(JSC::CodeGenerator::newTemporary):
(JSC::CodeGenerator::highestUsedRegister):
(JSC::CodeGenerator::addConstant):


ASSERT that our caller referenced the registers it passed to us.
Otherwise, we might overwrite them with parameters:
(JSC::CodeGenerator::emitCall):
(JSC::CodeGenerator::emitConstruct):

  • VM/CodeGenerator.h:


Added some abstraction for getting a RegisterID for a given index,
since the rules are a little weird:
(JSC::CodeGenerator::registerFor):

  • VM/Machine.cpp:

Utility function to transform a machine return PC to a virtual machine
return VPC, for the sake of stack unwinding, since both PCs are stored
in the same location now:
(JSC::vPCForPC):

Tweaked to account for new call frame:
(JSC::Machine::initializeCallFrame):


Tweaked to account for registerOffset supplied by caller:
(JSC::slideRegisterWindowForCall):

Tweaked to account for new register layout:
(JSC::scopeChainForCall):
(JSC::Machine::callEval):
(JSC::Machine::dumpRegisters):
(JSC::Machine::unwindCallFrame):
(JSC::Machine::execute):

Changed op_call and op_construct to implement the new calling convention:
(JSC::Machine::privateExecute):

Tweaked to account for the new register layout:
(JSC::Machine::retrieveArguments):
(JSC::Machine::retrieveCaller):
(JSC::Machine::retrieveLastCaller):
(JSC::Machine::callFrame):
(JSC::Machine::getArgumentsData):

Changed CTI call helpers to implement the new calling convention:
(JSC::Machine::cti_op_call_JSFunction):
(JSC::Machine::cti_op_call_NotJSFunction):
(JSC::Machine::cti_op_ret_activation):
(JSC::Machine::cti_op_ret_profiler):
(JSC::Machine::cti_op_construct_JSConstruct):
(JSC::Machine::cti_op_construct_NotJSConstruct):
(JSC::Machine::cti_op_call_eval):

  • VM/Machine.h:
  • VM/Opcode.h:


Renamed op_initialise_locals to op_init, because this opcode
doesn't initialize all locals, and it doesn't initialize only locals.
Also, to spite Oliver.


  • VM/RegisterFile.h:


New call frame enumeration values:
(JSC::RegisterFile::):

Simplified the calculation of whether a RegisterID is a temporary,
since we can no longer assume that all positive non-constant registers
are temporaries:

  • VM/RegisterID.h: (JSC::RegisterID::RegisterID): (JSC::RegisterID::setTemporary): (JSC::RegisterID::isTemporary):

Renamed firstArgumentIndex to firstParameterIndex because the assumption
that this variable pertained to the actual arguments supplied by the
caller caused me to write some buggy code:

  • kjs/Arguments.cpp: (JSC::ArgumentsData::ArgumentsData): (JSC::Arguments::Arguments): (JSC::Arguments::fillArgList): (JSC::Arguments::getOwnPropertySlot): (JSC::Arguments::put):

Updated for new call frame layout:

  • kjs/DebuggerCallFrame.cpp: (JSC::DebuggerCallFrame::functionName): (JSC::DebuggerCallFrame::type):
  • kjs/DebuggerCallFrame.h:

Changed the activation object to account for the fact that a call frame
header now sits between parameters and local variables. This change
requires all variable objects to do their own marking, since they
now use their register storage differently:

  • kjs/JSActivation.cpp: (JSC::JSActivation::mark): (JSC::JSActivation::copyRegisters): (JSC::JSActivation::createArgumentsObject):
  • kjs/JSActivation.h:

Updated global object to use the new interfaces required by the change
to JSActivation above:

  • kjs/JSGlobalObject.cpp: (JSC::JSGlobalObject::reset): (JSC::JSGlobalObject::mark): (JSC::JSGlobalObject::copyGlobalsFrom): (JSC::JSGlobalObject::copyGlobalsTo):
  • kjs/JSGlobalObject.h: (JSC::JSGlobalObject::addStaticGlobals):

Updated static scope object to use the new interfaces required by the
change to JSActivation above:

  • kjs/JSStaticScopeObject.cpp: (JSC::JSStaticScopeObject::mark): (JSC::JSStaticScopeObject::~JSStaticScopeObject):
  • kjs/JSStaticScopeObject.h: (JSC::JSStaticScopeObject::JSStaticScopeObject): (JSC::JSStaticScopeObject::d):

Updated variable object to use the new interfaces required by the
change to JSActivation above:

  • kjs/JSVariableObject.cpp: (JSC::JSVariableObject::copyRegisterArray): (JSC::JSVariableObject::setRegisters):
  • kjs/JSVariableObject.h:

Changed the bit twiddling in symbol table not to assume that all indices
are negative, since they can be positive now:

  • kjs/SymbolTable.h: (JSC::SymbolTableEntry::SymbolTableEntry): (JSC::SymbolTableEntry::isNull): (JSC::SymbolTableEntry::getIndex): (JSC::SymbolTableEntry::getAttributes): (JSC::SymbolTableEntry::setAttributes): (JSC::SymbolTableEntry::isReadOnly): (JSC::SymbolTableEntry::pack): (JSC::SymbolTableEntry::isValidIndex):

Changed call and construct nodes to ref their functions and/or bases,
so that emitCall/emitConstruct doesn't overwrite them with parameters.
Also, updated for rename to registerFor:

  • kjs/nodes.cpp: (JSC::ResolveNode::emitCode): (JSC::NewExprNode::emitCode): (JSC::EvalFunctionCallNode::emitCode): (JSC::FunctionCallValueNode::emitCode): (JSC::FunctionCallResolveNode::emitCode): (JSC::FunctionCallBracketNode::emitCode): (JSC::FunctionCallDotNode::emitCode): (JSC::PostfixResolveNode::emitCode): (JSC::DeleteResolveNode::emitCode): (JSC::TypeOfResolveNode::emitCode): (JSC::PrefixResolveNode::emitCode): (JSC::ReadModifyResolveNode::emitCode): (JSC::AssignResolveNode::emitCode): (JSC::ConstDeclNode::emitCodeSingle): (JSC::ForInNode::emitCode):

Added abstraction for getting exception info out of a call through a
register:

  • masm/X86Assembler.h: (JSC::X86Assembler::emitCall):


Removed duplicate #if:

  • wtf/Platform.h:
  • Property svn:eol-style set to native
File size: 14.4 KB
Line 
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2_JSClassCreate
3_JSClassRelease
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7_JSContextGroupCreate
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288__ZN3WTF7Unicode18convertUTF16ToUTF8EPPKtS2_PPcS4_b
289__ZN3WTF8Collator18setOrderLowerFirstEb
290__ZN3WTF8CollatorC1EPKc
291__ZN3WTF8CollatorD1Ev
292__ZN3WTF8fastFreeEPv
293__ZNK3JSC12DateInstance7getTimeERdRi
294__ZNK3JSC12StringObject12toThisStringEPNS_9ExecStateE
295__ZNK3JSC12StringObject8toStringEPNS_9ExecStateE
296__ZNK3JSC14JSGlobalObject14isDynamicScopeEv
297__ZNK3JSC14JSGlobalObject14toGlobalObjectEPNS_9ExecStateE
298__ZNK3JSC16JSVariableObject16isVariableObjectEv
299__ZNK3JSC16JSVariableObject21getPropertyAttributesEPNS_9ExecStateERKNS_10IdentifierERj
300__ZNK3JSC17DebuggerCallFrame10thisObjectEv
301__ZNK3JSC17DebuggerCallFrame12functionNameEv
302__ZNK3JSC17DebuggerCallFrame4typeEv
303__ZNK3JSC17DebuggerCallFrame8evaluateERKNS_7UStringERPNS_7JSValueE
304__ZNK3JSC4Node8toStringEv
305__ZNK3JSC6JSCell12toThisObjectEPNS_9ExecStateE
306__ZNK3JSC6JSCell12toThisStringEPNS_9ExecStateE
307__ZNK3JSC6JSCell14isGetterSetterEv
308__ZNK3JSC6JSCell17getTruncatedInt32ERi
309__ZNK3JSC6JSCell18getTruncatedUInt32ERj
310__ZNK3JSC6JSCell9classInfoEv
311__ZNK3JSC6JSCell9getNumberEv
312__ZNK3JSC6JSCell9getStringERNS_7UStringE
313__ZNK3JSC6JSCell9getStringEv
314__ZNK3JSC6JSCell9getUInt32ERj
315__ZNK3JSC7ArgList8getSliceEiRS0_
316__ZNK3JSC7JSValue15toInt32SlowCaseEPNS_9ExecStateERb
317__ZNK3JSC7JSValue16toUInt32SlowCaseEPNS_9ExecStateERb
318__ZNK3JSC7JSValue7toFloatEPNS_9ExecStateE
319__ZNK3JSC7JSValue9toIntegerEPNS_9ExecStateE
320__ZNK3JSC7Machine18retrieveLastCallerEPNS_9ExecStateERiS3_RNS_7UStringERPNS_7JSValueE
321__ZNK3JSC7UString10UTF8StringEb
322__ZNK3JSC7UString14toStrictUInt32EPb
323__ZNK3JSC7UString5asciiEv
324__ZNK3JSC7UString6is8BitEv
325__ZNK3JSC7UString6substrEii
326__ZNK3JSC7UString8toUInt32EPb
327__ZNK3JSC7UString8toUInt32EPbb
328__ZNK3JSC8JSObject11hasPropertyEPNS_9ExecStateERKNS_10IdentifierE
329__ZNK3JSC8JSObject11hasPropertyEPNS_9ExecStateEj
330__ZNK3JSC8JSObject12defaultValueEPNS_9ExecStateENS_7JSValue22PreferredPrimitiveTypeE
331__ZNK3JSC8JSObject12toThisObjectEPNS_9ExecStateE
332__ZNK3JSC8JSObject14toGlobalObjectEPNS_9ExecStateE
333__ZNK3JSC8JSObject21getPropertyAttributesEPNS_9ExecStateERKNS_10IdentifierERj
334__ZNK3JSC8JSObject8toNumberEPNS_9ExecStateE
335__ZNK3JSC8JSObject8toObjectEPNS_9ExecStateE
336__ZNK3JSC8JSObject8toStringEPNS_9ExecStateE
337__ZNK3JSC8JSObject9classNameEv
338__ZNK3JSC8JSObject9toBooleanEPNS_9ExecStateE
339__ZNK3JSC9CodeBlock17derefStructureIDsEPNS_11InstructionE
340__ZNK3JSC9HashTable11createTableEPNS_12JSGlobalDataE
341__ZNK3WTF8Collator7collateEPKtmS2_m
342__ZTVN3JSC12JSNumberCellE
343__ZTVN3JSC12StringObjectE
344__ZTVN3JSC14JSGlobalObjectE
345__ZTVN3JSC15JSWrapperObjectE
346__ZTVN3JSC16InternalFunctionE
347__ZTVN3JSC16JSVariableObjectE
348__ZTVN3JSC8JSObjectE
349__ZTVN3JSC8JSStringE
350_jscore_fastmalloc_introspection
351_kJSClassDefinitionEmpty
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