ftl/FTLState.cpp

   1 /*
   2  * Copyright (C) 2013, 2015 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "FTLState.h"
  28
  29 #if ENABLE(FTL_JIT)
  30
  31 #include "CodeBlockWithJITType.h"
  32 #include "FTLForOSREntryJITCode.h"
  33 #include "FTLJITCode.h"
  34 #include "FTLJITFinalizer.h"
  35 #include <llvm/InitializeLLVM.h>
  36 #include <stdio.h>
  37
  38 #if ENABLE(FTL_NATIVE_CALL_INLINING)
  39 #include "InlineRuntimeSymbolTable.h"
  40 #endif
  41
  42 namespace JSC { namespace FTL {
  43
  44 using namespace DFG;
  45
  46 State::State(Graph& graph)
  47     : graph(graph)
  48     , context(llvm->ContextCreate())
  49     , module(0)
  50     , function(0)
  51     , generatedFunction(0)
  52     , handleStackOverflowExceptionStackmapID(UINT_MAX)
  53     , handleExceptionStackmapID(UINT_MAX)
  54     , capturedStackmapID(UINT_MAX)
  55     , varargsSpillSlotsStackmapID(UINT_MAX)
  56     , unwindDataSection(0)
  57     , unwindDataSectionSize(0)
  58 {
  59
  60 #if ENABLE(FTL_NATIVE_CALL_INLINING)
  61 #define SYMBOL_TABLE_ADD(symbol, file) \
  62     symbolTable.fastAdd(symbol, file);
  63     FOR_EACH_LIBRARY_SYMBOL(SYMBOL_TABLE_ADD)
  64 #undef SYMBOL_TABLE_ADD
  65 #endif
  66
  67     switch (graph.m_plan.mode) {
  68     case FTLMode: {
  69         jitCode = adoptRef(new JITCode());
  70         break;
  71     }
  72     case FTLForOSREntryMode: {
  73         RefPtr<ForOSREntryJITCode> code = adoptRef(new ForOSREntryJITCode());
  74         code->initializeEntryBuffer(graph.m_vm, graph.m_profiledBlock->m_numCalleeRegisters);
  75         code->setBytecodeIndex(graph.m_plan.osrEntryBytecodeIndex);
  76         jitCode = code;
  77         break;
  78     }
  79     default:
  80         RELEASE_ASSERT_NOT_REACHED();
  81         break;
  82     }
  83
  84     graph.m_plan.finalizer = std::make_unique<JITFinalizer>(graph.m_plan);
  85     finalizer = static_cast<JITFinalizer*>(graph.m_plan.finalizer.get());
  86 }
  87
  88 State::~State()
  89 {
  90     llvm->ContextDispose(context);
  91 }
  92
  93 void State::dumpState(const char* when)
  94 {
  95     dumpState(module, when);
  96 }
  97
  98 void State::dumpState(LModule module, const char* when)
  99 {
 100     dataLog("LLVM IR for ", CodeBlockWithJITType(graph.m_codeBlock, FTL::JITCode::FTLJIT), " ", when, ":\n");
 101     dumpModule(module);
 102 }
 103
 104 } } // namespace JSC::FTL
 105
 106 #endif // ENABLE(FTL_JIT)
 107