Changeset 218412 in webkit for trunk/Source/JavaScriptCore/bytecode/BytecodeLivenessAnalysis.cpp

Timestamp:

Jun 16, 2017, 2:02:37 PM (8 years ago)

Author:

[email protected]

Message:

Interpreter methods for mapping between Opcode and OpcodeID need not be instance methods.
​https://bugs.webkit.org/show_bug.cgi?id=173491

Reviewed by Keith Miller.

The implementation are based on static data. There's no need to get the
interpreter instance. Hence, we can make these methods static and avoid doing
unnecessary work to compute the interpreter this pointer.

Also removed the unused isCallBytecode method.

• bytecode/BytecodeBasicBlock.cpp:

(JSC::BytecodeBasicBlock::computeImpl):

• bytecode/BytecodeDumper.cpp:

(JSC::BytecodeDumper<Block>::printGetByIdOp):
(JSC::BytecodeDumper<Block>::printGetByIdCacheStatus):
(JSC::BytecodeDumper<Block>::dumpBytecode):
(JSC::BytecodeDumper<Block>::dumpBlock):

• bytecode/BytecodeLivenessAnalysis.cpp:

(JSC::BytecodeLivenessAnalysis::dumpResults):

• bytecode/BytecodeLivenessAnalysisInlines.h:

(JSC::BytecodeLivenessPropagation<DerivedAnalysis>::stepOverInstruction):

• bytecode/BytecodeRewriter.cpp:

(JSC::BytecodeRewriter::adjustJumpTargetsInFragment):

• bytecode/CallLinkStatus.cpp:

(JSC::CallLinkStatus::computeFromLLInt):

• bytecode/CodeBlock.cpp:

(JSC::CodeBlock::finishCreation):
(JSC::CodeBlock::propagateTransitions):
(JSC::CodeBlock::finalizeLLIntInlineCaches):
(JSC::CodeBlock::hasOpDebugForLineAndColumn):
(JSC::CodeBlock::usesOpcode):
(JSC::CodeBlock::valueProfileForBytecodeOffset):
(JSC::CodeBlock::arithProfileForPC):
(JSC::CodeBlock::insertBasicBlockBoundariesForControlFlowProfiler):

• bytecode/PreciseJumpTargets.cpp:

(JSC::getJumpTargetsForBytecodeOffset):
(JSC::computePreciseJumpTargetsInternal):
(JSC::findJumpTargetsForBytecodeOffset):

• bytecode/PreciseJumpTargetsInlines.h:

(JSC::extractStoredJumpTargetsForBytecodeOffset):

• bytecode/UnlinkedCodeBlock.cpp:

(JSC::UnlinkedCodeBlock::applyModification):

• dfg/DFGByteCodeParser.cpp:

(JSC::DFG::ByteCodeParser::getPredictionWithoutOSRExit):
(JSC::DFG::ByteCodeParser::parseBlock):

• dfg/DFGCapabilities.cpp:

(JSC::DFG::capabilityLevel):

• interpreter/Interpreter.cpp:

(JSC::Interpreter::Interpreter):
(JSC::Interpreter::isOpcode):
(): Deleted.

• interpreter/Interpreter.h:

(JSC::Interpreter::getOpcode): Deleted.
(JSC::Interpreter::getOpcodeID): Deleted.
(JSC::Interpreter::isCallBytecode): Deleted.

• interpreter/InterpreterInlines.h:

(JSC::Interpreter::getOpcode):
(JSC::Interpreter::getOpcodeID):

• jit/JIT.cpp:

(JSC::JIT::privateCompileMainPass):
(JSC::JIT::privateCompileSlowCases):

• jit/JITOpcodes.cpp:

(JSC::JIT::emitNewFuncCommon):
(JSC::JIT::emitNewFuncExprCommon):

• jit/JITPropertyAccess.cpp:

(JSC::JIT::emitSlow_op_put_by_val):
(JSC::JIT::privateCompilePutByVal):

• jit/JITPropertyAccess32_64.cpp:

(JSC::JIT::emitSlow_op_put_by_val):

• llint/LLIntSlowPaths.cpp:

(JSC::LLInt::llint_trace_operand):
(JSC::LLInt::llint_trace_value):
(JSC::LLInt::LLINT_SLOW_PATH_DECL):

• profiler/ProfilerBytecodeSequence.cpp:

(JSC::Profiler::BytecodeSequence::BytecodeSequence):

File:

• trunk/Source/JavaScriptCore/bytecode/BytecodeLivenessAnalysis.cpp (modified) (3 diffs)

trunk/Source/JavaScriptCore/bytecode/BytecodeLivenessAnalysis.cpp

@@ -1 +1 @@
 /*
- * Copyright (C) 2013, 2015 Apple Inc. All rights reserved.
+ * Copyright (C) 2013-2017 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -140 +140 @@
     CodeBlock* codeBlock = m_graph.codeBlock();
     dataLog("\nDumping bytecode liveness for ", *codeBlock, ":\n");
-    Interpreter* interpreter = codeBlock->vm()->interpreter;
     Instruction* instructionsBegin = codeBlock->instructions().begin();
     unsigned i = 0;
@@ -197 +196 @@
             codeBlock->dumpBytecode(WTF::dataFile(), instructionsBegin, currentInstruction);
 
-            OpcodeID opcodeID = interpreter->getOpcodeID(instructionsBegin[bytecodeOffset].u.opcode);
+            OpcodeID opcodeID = Interpreter::getOpcodeID(instructionsBegin[bytecodeOffset].u.opcode);
             unsigned opcodeLength = opcodeLengths[opcodeID];
             bytecodeOffset += opcodeLength;