DFG and FTL should know that comparing anything to Misc is cheap and easy
https://bugs.webkit.org/show_bug.cgi?id=130001
Reviewed by Geoffrey Garen.
- Expand CompareStrictEq(Misc:, Misc:) to work for cases where either side of the
comparison is just Untyped:.
- This obviates the need for CompareStrictEqConstant, so remove it.
- FTL had a thing called "Nully" which is really "Other". Rename it and add
OtherUse.
9% speed-up on box2d.
* dfg/DFGAbstractInterpreterInlines.h:
(JSC::DFG::AbstractInterpreter<AbstractStateType>::executeEffects):
* dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::parseBlock):
* dfg/DFGClobberize.h:
(JSC::DFG::clobberize):
* dfg/DFGFixupPhase.cpp:
(JSC::DFG::FixupPhase::fixupNode):
* dfg/DFGNode.h:
(JSC::DFG::Node::isBinaryUseKind):
(JSC::DFG::Node::shouldSpeculateOther):
* dfg/DFGNodeType.h:
* dfg/DFGPredictionPropagationPhase.cpp:
(JSC::DFG::PredictionPropagationPhase::propagate):
* dfg/DFGSafeToExecute.h:
(JSC::DFG::safeToExecute):
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compilePeepHoleBranch):
(JSC::DFG::SpeculativeJIT::compare):
(JSC::DFG::SpeculativeJIT::compileStrictEq):
* dfg/DFGSpeculativeJIT.h:
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compileMiscStrictEq):
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compileMiscStrictEq):
(JSC::DFG::SpeculativeJIT::compile):
* ftl/FTLCapabilities.cpp:
(JSC::FTL::canCompile):
* ftl/FTLLowerDFGToLLVM.cpp:
(JSC::FTL::LowerDFGToLLVM::compileNode):
(JSC::FTL::LowerDFGToLLVM::compileCompareEq):
(JSC::FTL::LowerDFGToLLVM::compileCompareStrictEq):
(JSC::FTL::LowerDFGToLLVM::compareEqObjectOrOtherToObject):
(JSC::FTL::LowerDFGToLLVM::equalNullOrUndefined):
(JSC::FTL::LowerDFGToLLVM::isNotOther):
(JSC::FTL::LowerDFGToLLVM::isOther):
(JSC::FTL::LowerDFGToLLVM::speculate):
(JSC::FTL::LowerDFGToLLVM::speculateObjectOrOther):
(JSC::FTL::LowerDFGToLLVM::speculateNotCell):
(JSC::FTL::LowerDFGToLLVM::speculateOther):
(JSC::FTL::LowerDFGToLLVM::speculateMisc):
* tests/stress/compare-strict-eq-integer-to-misc.js: Added.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@165406 268f45cc-cd09-0410-ab3c-d52691b4dbfc
16 files changed
