ftl/FTLJSCallVarargs.h

   1 /*
   2  * Copyright (C) 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 FTLJSCallVarargs_h
  27 #define FTLJSCallVarargs_h
  28
  29 #if ENABLE(FTL_JIT)
  30
  31 #include "FTLJSCallBase.h"
  32
  33 namespace JSC {
  34
  35 class LinkBuffer;
  36
  37 namespace DFG {
  38 struct Node;
  39 }
  40
  41 namespace FTL {
  42
  43 class JSCallVarargs {
  44 public:
  45     JSCallVarargs();
  46     JSCallVarargs(unsigned stackmapID, DFG::Node*);
  47
  48     DFG::Node* node() const { return m_node; }
  49
  50     static unsigned numSpillSlotsNeeded();
  51
  52     void emit(CCallHelpers&, int32_t spillSlotsOffset);
  53     void link(VM&, LinkBuffer&, CodeLocationLabel exceptionHandler);
  54
  55     unsigned stackmapID() const { return m_stackmapID; }
  56
  57     bool operator<(const JSCallVarargs& other) const
  58     {
  59         return m_instructionOffset < other.m_instructionOffset;
  60     }
  61
  62 private:
  63     unsigned m_stackmapID;
  64     DFG::Node* m_node;
  65     JSCallBase m_callBase;
  66     CCallHelpers::JumpList m_exceptions;
  67
  68 public:
  69     uint32_t m_instructionOffset;
  70 };
  71
  72 } } // namespace JSC::FTL
  73
  74 #endif // ENABLE(FTL_JIT)
  75
  76 #endif // FTLJSCallVarargs_h
  77