| /* |
| * Copyright (C) 2011 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "DFGDriver.h" |
| |
| #if ENABLE(DFG_JIT) |
| |
| #include "DFGByteCodeParser.h" |
| #include "DFGCFAPhase.h" |
| #include "DFGCSEPhase.h" |
| #include "DFGFixupPhase.h" |
| #include "DFGJITCompiler.h" |
| #include "DFGPredictionPropagationPhase.h" |
| #include "DFGRedundantPhiEliminationPhase.h" |
| #include "DFGVirtualRegisterAllocationPhase.h" |
| |
| namespace JSC { namespace DFG { |
| |
| enum CompileMode { CompileFunction, CompileOther }; |
| inline bool compile(CompileMode compileMode, JSGlobalData& globalData, CodeBlock* codeBlock, JITCode& jitCode, MacroAssemblerCodePtr* jitCodeWithArityCheck) |
| { |
| SamplingRegion samplingRegion("DFG Compilation (Driver)"); |
| |
| ASSERT(codeBlock); |
| ASSERT(codeBlock->alternative()); |
| ASSERT(codeBlock->alternative()->getJITType() == JITCode::BaselineJIT); |
| |
| #if DFG_ENABLE(DEBUG_VERBOSE) |
| dataLog("DFG compiling code block %p(%p), number of instructions = %u.\n", codeBlock, codeBlock->alternative(), codeBlock->instructionCount()); |
| #endif |
| |
| Graph dfg(globalData, codeBlock); |
| if (!parse(dfg)) |
| return false; |
| |
| if (compileMode == CompileFunction) |
| dfg.predictArgumentTypes(); |
| |
| performPredictionPropagation(dfg); |
| performFixup(dfg); |
| performCSE(dfg); |
| performVirtualRegisterAllocation(dfg); |
| performCFA(dfg); |
| |
| #if DFG_ENABLE(DEBUG_VERBOSE) |
| dataLog("Graph after optimization:\n"); |
| dfg.dump(); |
| #endif |
| |
| JITCompiler dataFlowJIT(dfg); |
| bool result; |
| if (compileMode == CompileFunction) { |
| ASSERT(jitCodeWithArityCheck); |
| |
| result = dataFlowJIT.compileFunction(jitCode, *jitCodeWithArityCheck); |
| } else { |
| ASSERT(compileMode == CompileOther); |
| ASSERT(!jitCodeWithArityCheck); |
| |
| result = dataFlowJIT.compile(jitCode); |
| } |
| |
| return result; |
| } |
| |
| bool tryCompile(JSGlobalData& globalData, CodeBlock* codeBlock, JITCode& jitCode) |
| { |
| return compile(CompileOther, globalData, codeBlock, jitCode, 0); |
| } |
| |
| bool tryCompileFunction(JSGlobalData& globalData, CodeBlock* codeBlock, JITCode& jitCode, MacroAssemblerCodePtr& jitCodeWithArityCheck) |
| { |
| return compile(CompileFunction, globalData, codeBlock, jitCode, &jitCodeWithArityCheck); |
| } |
| |
| } } // namespace JSC::DFG |
| |
| #endif // ENABLE(DFG_JIT) |
| |