Use "this" instead of "callee" to get the constructor
https://bugs.webkit.org/show_bug.cgi?id=141019
Reviewed by Filip Pizlo.
This patch uses "this" register to pass the constructor (newTarget) to op_create_this from
op_construct or op_construct_varargs. This will allow future patches that implement ES6 class
to pass in the most derived class' constructor through "this" argument.
BytecodeGenerator's emitConstruct and emitConstructVarargs now passes thisRegister like
regular calls and emitCreateThis passes in this register to op_create_this as constructor.
The rest of the code change removes the code for special casing "this" register not being used
in call to construct.
* bytecode/BytecodeUseDef.h:
(JSC::computeUsesForBytecodeOffset):
* bytecompiler/BytecodeGenerator.cpp:
(JSC::BytecodeGenerator::emitCreateThis):
(JSC::BytecodeGenerator::emitConstructVarargs):
(JSC::BytecodeGenerator::emitConstruct):
* bytecompiler/BytecodeGenerator.h:
* bytecompiler/NodesCodegen.cpp:
(JSC::NewExprNode::emitBytecode):
* dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::addCallWithoutSettingResult):
(JSC::DFG::ByteCodeParser::handleVarargsCall):
(JSC::DFG::ByteCodeParser::emitArgumentPhantoms):
(JSC::DFG::ByteCodeParser::attemptToInlineCall):
(JSC::DFG::ByteCodeParser::handleInlining):
(JSC::DFG::ByteCodeParser::handleConstantInternalFunction):
(JSC::DFG::ByteCodeParser::parseBlock):
* dfg/DFGJITCode.cpp:
(JSC::DFG::JITCode::reconstruct):
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::emitCall):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::emitCall):
* ftl/FTLJSCallVarargs.cpp:
(JSC::FTL::JSCallVarargs::emit):
* ftl/FTLLowerDFGToLLVM.cpp:
(JSC::FTL::LowerDFGToLLVM::compileNativeCallOrConstruct):
(JSC::FTL::LowerDFGToLLVM::compileCallOrConstruct):
(JSC::FTL::LowerDFGToLLVM::compileCallOrConstructVarargs):
* interpreter/Interpreter.cpp:
(JSC::Interpreter::executeConstruct):
* jit/JITOperations.cpp:
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@180595 268f45cc-cd09-0410-ab3c-d52691b4dbfc
13 files changed
