tree da0d33d5836b33f22d558504a47185e15299547e
parent 6dbdc828ddbca56638806bb413cd00fae4808775
author ysuzuki@apple.com <ysuzuki@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1557768751 +0000
committer ysuzuki@apple.com <ysuzuki@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1557768751 +0000

[JSC] Compress miscelaneous JIT related data structures with Packed<>
https://bugs.webkit.org/show_bug.cgi?id=197830

Reviewed by Saam Barati.

Source/JavaScriptCore:

This patch leverages Packed<> to compress miscelaneous data structures related to JIT.

1. JIT IC data structures

2. ValueRecovery

    We use Packed<> for EncodedJSValue in ValueRecovery. This means that conservative GC cannot find
    these values. But this is OK anyway since ValueRecovery's constant should be already registered
    in DFG graph. From 16 (alignment 8) to 9 (alignment 1).

3. FTL::ExitValue

    We use Packed<> for EncodedJSValue in FTL::ExitValue. This is also OK since this constant should
    be already registered by DFG/FTL graph. From 16 (alignment 8) to 9 (alignment 1).

* assembler/CodeLocation.h:
* bytecode/ByValInfo.h:
* bytecode/CallLinkInfo.cpp:
(JSC::CallLinkInfo::CallLinkInfo):
(JSC::CallLinkInfo::callReturnLocation):
* bytecode/CallLinkInfo.h:
(JSC::CallLinkInfo::nearCallMode const):
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::addJITAddIC):
(JSC::CodeBlock::addJITMulIC):
(JSC::CodeBlock::addJITSubIC):
(JSC::CodeBlock::addJITNegIC):
* bytecode/CodeBlock.h:
(JSC::CodeBlock::addMathIC):
* bytecode/InlineCallFrame.h:
(JSC::InlineCallFrame::InlineCallFrame):
* bytecode/ValueRecovery.h:
(JSC::ValueRecovery::inGPR):
(JSC::ValueRecovery::inPair):
(JSC::ValueRecovery::inFPR):
(JSC::ValueRecovery::displacedInJSStack):
(JSC::ValueRecovery::constant):
(JSC::ValueRecovery::directArgumentsThatWereNotCreated):
(JSC::ValueRecovery::clonedArgumentsThatWereNotCreated):
(JSC::ValueRecovery::gpr const):
(JSC::ValueRecovery::tagGPR const):
(JSC::ValueRecovery::payloadGPR const):
(JSC::ValueRecovery::fpr const):
(JSC::ValueRecovery::virtualRegister const):
(JSC::ValueRecovery::withLocalsOffset const):
(JSC::ValueRecovery::constant const):
(JSC::ValueRecovery::nodeID const):
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compileValueAdd):
(JSC::DFG::SpeculativeJIT::compileValueSub):
(JSC::DFG::SpeculativeJIT::compileValueNegate):
(JSC::DFG::SpeculativeJIT::compileValueMul):
* ftl/FTLExitValue.cpp:
(JSC::FTL::ExitValue::materializeNewObject):
* ftl/FTLExitValue.h:
(JSC::FTL::ExitValue::inJSStack):
(JSC::FTL::ExitValue::inJSStackAsInt32):
(JSC::FTL::ExitValue::inJSStackAsInt52):
(JSC::FTL::ExitValue::inJSStackAsDouble):
(JSC::FTL::ExitValue::constant):
(JSC::FTL::ExitValue::exitArgument):
(JSC::FTL::ExitValue::exitArgument const):
(JSC::FTL::ExitValue::adjustStackmapLocationsIndexByOffset):
(JSC::FTL::ExitValue::constant const):
(JSC::FTL::ExitValue::virtualRegister const):
(JSC::FTL::ExitValue::objectMaterialization const):
(JSC::FTL::ExitValue::withVirtualRegister const):
* ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileValueAdd):
(JSC::FTL::DFG::LowerDFGToB3::compileValueSub):
(JSC::FTL::DFG::LowerDFGToB3::compileValueMul):
(JSC::FTL::DFG::LowerDFGToB3::compileUnaryMathIC):
(JSC::FTL::DFG::LowerDFGToB3::compileBinaryMathIC):
(JSC::FTL::DFG::LowerDFGToB3::compileArithAddOrSub):
(JSC::FTL::DFG::LowerDFGToB3::compileValueNegate):
* jit/CachedRecovery.h:
* jit/CallFrameShuffleData.h:
* jit/JITArithmetic.cpp:
(JSC::JIT::emit_op_negate):
(JSC::JIT::emit_op_add):
(JSC::JIT::emit_op_mul):
(JSC::JIT::emit_op_sub):
* jit/JITMathIC.h:
(JSC::isProfileEmpty):
(JSC::JITBinaryMathIC::JITBinaryMathIC):
(JSC::JITUnaryMathIC::JITUnaryMathIC):
* jit/PolymorphicCallStubRoutine.h:
(JSC::PolymorphicCallNode::hasCallLinkInfo):
* jit/SnippetOperand.h:
(JSC::SnippetOperand::asRawBits const):
(JSC::SnippetOperand::asConstInt32 const):
(JSC::SnippetOperand::asConstDouble const):
(JSC::SnippetOperand::setConstInt32):
(JSC::SnippetOperand::setConstDouble):

Source/WTF:

* wtf/Packed.h:
(WTF::alignof):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@245239 268f45cc-cd09-0410-ab3c-d52691b4dbfc