ftl/FTLState.h

   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 #ifndef FTLState_h
  27 #define FTLState_h
  28
  29 #if ENABLE(FTL_JIT)
  30
  31 #include "DFGCommon.h"
  32 #include "DFGGraph.h"
  33 #include "FTLAbbreviations.h"
  34 #include "FTLGeneratedFunction.h"
  35 #include "FTLInlineCacheDescriptor.h"
  36 #include "FTLJITCode.h"
  37 #include "FTLJITFinalizer.h"
  38 #include "FTLJSCall.h"
  39 #include "FTLJSCallVarargs.h"
  40 #include "FTLStackMaps.h"
  41 #include "FTLState.h"
  42 #include <wtf/Noncopyable.h>
  43
  44 namespace JSC { namespace FTL {
  45
  46 inline bool verboseCompilationEnabled()
  47 {
  48     return DFG::verboseCompilationEnabled(DFG::FTLMode);
  49 }
  50
  51 inline bool shouldShowDisassembly()
  52 {
  53     return DFG::shouldShowDisassembly(DFG::FTLMode);
  54 }
  55
  56 class State {
  57     WTF_MAKE_NONCOPYABLE(State);
  58
  59 public:
  60     State(DFG::Graph& graph);
  61     ~State();
  62
  63     // None of these things is owned by State. It is the responsibility of
  64     // FTL phases to properly manage the lifecycle of the module and function.
  65     DFG::Graph& graph;
  66     LContext context;
  67     LModule module;
  68     LValue function;
  69     bool allocationFailed { false }; // Throw out the compilation once LLVM returns.
  70     RefPtr<JITCode> jitCode;
  71     GeneratedFunction generatedFunction;
  72     JITFinalizer* finalizer;
  73     unsigned handleStackOverflowExceptionStackmapID;
  74     unsigned handleExceptionStackmapID;
  75     unsigned capturedStackmapID;
  76     unsigned varargsSpillSlotsStackmapID;
  77     SegmentedVector<GetByIdDescriptor> getByIds;
  78     SegmentedVector<PutByIdDescriptor> putByIds;
  79     SegmentedVector<CheckInDescriptor> checkIns;
  80     Vector<JSCall> jsCalls;
  81     Vector<JSCallVarargs> jsCallVarargses;
  82     Vector<CString> codeSectionNames;
  83     Vector<CString> dataSectionNames;
  84     void* unwindDataSection;
  85     size_t unwindDataSectionSize;
  86     RefPtr<DataSection> stackmapsSection;
  87
  88     void dumpState(const char* when);
  89     void dumpState(LModule, const char* when);
  90
  91     HashSet<CString> nativeLoadedLibraries;
  92
  93 #if ENABLE(FTL_NATIVE_CALL_INLINING)
  94     HashMap<CString, CString> symbolTable;
  95 #endif
  96 };
  97
  98 } } // namespace JSC::FTL
  99
 100 #endif // ENABLE(FTL_JIT)
 101
 102 #endif // FTLState_h
 103