ftl/FTLInlineCacheDescriptor.h

   1 /*
   2  * Copyright (C) 2013, 2014 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 FTLInlineCacheDescriptor_h
  27 #define FTLInlineCacheDescriptor_h
  28
  29 #if ENABLE(FTL_JIT)
  30
  31 #include "CodeOrigin.h"
  32 #include "JITInlineCacheGenerator.h"
  33 #include "MacroAssembler.h"
  34 #include <wtf/text/UniquedStringImpl.h>
  35
  36 namespace JSC { namespace FTL {
  37
  38 class InlineCacheDescriptor {
  39 public:
  40     InlineCacheDescriptor() { }
  41
  42     InlineCacheDescriptor(unsigned stackmapID, CodeOrigin codeOrigin, UniquedStringImpl* uid)
  43         : m_stackmapID(stackmapID)
  44         , m_codeOrigin(codeOrigin)
  45         , m_uid(uid)
  46     {
  47     }
  48
  49     unsigned stackmapID() const { return m_stackmapID; }
  50     CodeOrigin codeOrigin() const { return m_codeOrigin; }
  51     UniquedStringImpl* uid() const { return m_uid; }
  52
  53 private:
  54     unsigned m_stackmapID;
  55     CodeOrigin m_codeOrigin;
  56     UniquedStringImpl* m_uid;
  57
  58 public:
  59     Vector<MacroAssembler::Jump> m_slowPathDone;
  60 };
  61
  62 class GetByIdDescriptor : public InlineCacheDescriptor {
  63 public:
  64     GetByIdDescriptor() { }
  65
  66     GetByIdDescriptor(unsigned stackmapID, CodeOrigin codeOrigin, UniquedStringImpl* uid)
  67         : InlineCacheDescriptor(stackmapID, codeOrigin, uid)
  68     {
  69     }
  70
  71     Vector<JITGetByIdGenerator> m_generators;
  72 };
  73
  74 class PutByIdDescriptor : public InlineCacheDescriptor {
  75 public:
  76     PutByIdDescriptor() { }
  77
  78     PutByIdDescriptor(
  79         unsigned stackmapID, CodeOrigin codeOrigin, UniquedStringImpl* uid,
  80         ECMAMode ecmaMode, PutKind putKind)
  81         : InlineCacheDescriptor(stackmapID, codeOrigin, uid)
  82         , m_ecmaMode(ecmaMode)
  83         , m_putKind(putKind)
  84     {
  85     }
  86
  87     Vector<JITPutByIdGenerator> m_generators;
  88
  89     ECMAMode ecmaMode() const { return m_ecmaMode; }
  90     PutKind putKind() const { return m_putKind; }
  91
  92 private:
  93     ECMAMode m_ecmaMode;
  94     PutKind m_putKind;
  95 };
  96
  97 struct CheckInGenerator {
  98     StructureStubInfo* m_stub;
  99     MacroAssembler::Call m_slowCall;
 100     MacroAssembler::Label m_beginLabel;
 101
 102     CheckInGenerator(StructureStubInfo* stub, MacroAssembler::Call slowCall, MacroAssembler::Label beginLabel)
 103         : m_stub(stub)
 104         , m_slowCall(slowCall)
 105         , m_beginLabel(beginLabel)
 106     {
 107     }
 108 };
 109
 110 class CheckInDescriptor : public InlineCacheDescriptor {
 111 public:
 112     CheckInDescriptor() { }
 113
 114     CheckInDescriptor(unsigned stackmapID, CodeOrigin codeOrigin, const UniquedStringImpl* uid)
 115         : InlineCacheDescriptor(stackmapID, codeOrigin, nullptr)
 116         , m_uid(uid)
 117     {
 118     }
 119
 120
 121     const UniquedStringImpl* m_uid;
 122     Vector<CheckInGenerator> m_generators;
 123 };
 124
 125
 126 } } // namespace JSC::FTL
 127
 128 #endif // ENABLE(FTL_JIT)
 129
 130 #endif // FTLInlineCacheDescriptor_h
 131