LCOV - code coverage report
Current view: directory - js/src/assembler/assembler - AbstractMacroAssembler.h (source / functions) Found Hit Coverage
Test: app.info Lines: 164 164 100.0 %
Date: 2012-06-02 Functions: 63 63 100.0 %

       1                 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
       2                 :  * vim: set ts=8 sw=4 et tw=79:
       3                 :  *
       4                 :  * ***** BEGIN LICENSE BLOCK *****
       5                 :  * Copyright (C) 2008 Apple Inc. All rights reserved.
       6                 :  *
       7                 :  * Redistribution and use in source and binary forms, with or without
       8                 :  * modification, are permitted provided that the following conditions
       9                 :  * are met:
      10                 :  * 1. Redistributions of source code must retain the above copyright
      11                 :  *    notice, this list of conditions and the following disclaimer.
      12                 :  * 2. Redistributions in binary form must reproduce the above copyright
      13                 :  *    notice, this list of conditions and the following disclaimer in the
      14                 :  *    documentation and/or other materials provided with the distribution.
      15                 :  *
      16                 :  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
      17                 :  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      18                 :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
      19                 :  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
      20                 :  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
      21                 :  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
      22                 :  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
      23                 :  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
      24                 :  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      25                 :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      26                 :  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
      27                 :  * 
      28                 :  * ***** END LICENSE BLOCK ***** */
      29                 : 
      30                 : #ifndef AbstractMacroAssembler_h
      31                 : #define AbstractMacroAssembler_h
      32                 : 
      33                 : #include "assembler/wtf/Platform.h"
      34                 : #include "assembler/assembler/MacroAssemblerCodeRef.h"
      35                 : #include "assembler/assembler/CodeLocation.h"
      36                 : 
      37                 : #if ENABLE_ASSEMBLER
      38                 : 
      39                 : namespace JSC {
      40                 : 
      41                 : class LinkBuffer;
      42                 : class RepatchBuffer;
      43                 : 
      44                 : template <class AssemblerType>
      45         1526632 : class AbstractMacroAssembler {
      46                 : public:
      47                 :     typedef AssemblerType AssemblerType_T;
      48                 : 
      49                 :     typedef MacroAssemblerCodePtr CodePtr;
      50                 :     typedef MacroAssemblerCodeRef CodeRef;
      51                 : 
      52                 :     class Jump;
      53                 : 
      54                 :     typedef typename AssemblerType::RegisterID RegisterID;
      55                 :     typedef typename AssemblerType::FPRegisterID FPRegisterID;
      56                 :     typedef typename AssemblerType::JmpSrc JmpSrc;
      57                 :     typedef typename AssemblerType::JmpDst JmpDst;
      58                 : 
      59                 : #ifdef DEBUG
      60          134091 :     void setSpewPath(bool isOOLPath)
      61                 :     {
      62          134091 :         m_assembler.isOOLPath = isOOLPath;
      63          134091 :     }
      64                 : #endif
      65                 : 
      66                 :     // Section 1: MacroAssembler operand types
      67                 :     //
      68                 :     // The following types are used as operands to MacroAssembler operations,
      69                 :     // describing immediate  and memory operands to the instructions to be planted.
      70                 : 
      71                 : 
      72                 :     enum Scale {
      73                 :         TimesOne,
      74                 :         TimesTwo,
      75                 :         TimesFour,
      76                 :         TimesEight
      77                 :     };
      78                 : 
      79                 :     // Address:
      80                 :     //
      81                 :     // Describes a simple base-offset address.
      82                 :     struct Address {
      83          181223 :         explicit Address() {}
      84                 : 
      85        90765935 :         explicit Address(RegisterID base, int32_t offset = 0)
      86                 :             : base(base)
      87        90765935 :             , offset(offset)
      88                 :         {
      89        90765935 :         }
      90                 : 
      91                 :         RegisterID base;
      92                 :         int32_t offset;
      93                 :     };
      94                 : 
      95                 :     struct ExtendedAddress {
      96            3435 :         explicit ExtendedAddress(RegisterID base, intptr_t offset = 0)
      97                 :             : base(base)
      98            3435 :             , offset(offset)
      99                 :         {
     100            3435 :         }
     101                 :         
     102                 :         RegisterID base;
     103                 :         intptr_t offset;
     104                 :     };
     105                 : 
     106                 :     // ImplicitAddress:
     107                 :     //
     108                 :     // This class is used for explicit 'load' and 'store' operations
     109                 :     // (as opposed to situations in which a memory operand is provided
     110                 :     // to a generic operation, such as an integer arithmetic instruction).
     111                 :     //
     112                 :     // In the case of a load (or store) operation we want to permit
     113                 :     // addresses to be implicitly constructed, e.g. the two calls:
     114                 :     //
     115                 :     //     load32(Address(addrReg), destReg);
     116                 :     //     load32(addrReg, destReg);
     117                 :     //
     118                 :     // Are equivalent, and the explicit wrapping of the Address in the former
     119                 :     // is unnecessary.
     120                 :     struct ImplicitAddress {
     121           20325 :         ImplicitAddress(RegisterID base)
     122                 :             : base(base)
     123           20325 :             , offset(0)
     124                 :         {
     125           20325 :         }
     126                 : 
     127        60685991 :         ImplicitAddress(Address address)
     128                 :             : base(address.base)
     129        60685991 :             , offset(address.offset)
     130                 :         {
     131        60685991 :         }
     132                 : 
     133                 :         RegisterID base;
     134                 :         int32_t offset;
     135                 :     };
     136                 : 
     137                 :     // BaseIndex:
     138                 :     //
     139                 :     // Describes a complex addressing mode.
     140                 :     struct BaseIndex {
     141          315799 :         BaseIndex(RegisterID base, RegisterID index, Scale scale, int32_t offset = 0)
     142                 :             : base(base)
     143                 :             , index(index)
     144                 :             , scale(scale)
     145          315799 :             , offset(offset)
     146                 :         {
     147          315799 :         }
     148                 : 
     149                 :         RegisterID base;
     150                 :         RegisterID index;
     151                 :         Scale scale;
     152                 :         int32_t offset;
     153                 :     };
     154                 : 
     155                 :     // AbsoluteAddress:
     156                 :     //
     157                 :     // Describes an memory operand given by a pointer.  For regular load & store
     158                 :     // operations an unwrapped void* will be used, rather than using this.
     159                 :     struct AbsoluteAddress {
     160          389199 :         explicit AbsoluteAddress(void* ptr)
     161          389199 :             : m_ptr(ptr)
     162                 :         {
     163          389199 :         }
     164                 : 
     165                 :         void* m_ptr;
     166                 :     };
     167                 : 
     168                 :     // TrustedImmPtr:
     169                 :     //
     170                 :     // A pointer sized immediate operand to an instruction - this is wrapped
     171                 :     // in a class requiring explicit construction in order to differentiate
     172                 :     // from pointers used as absolute addresses to memory operations
     173                 :     struct TrustedImmPtr {
     174        12068984 :         explicit TrustedImmPtr(const void* value)
     175        12068984 :             : m_value(value)
     176                 :         {
     177        12068984 :         }
     178                 : 
     179        12068984 :         intptr_t asIntptr()
     180                 :         {
     181        12068984 :             return reinterpret_cast<intptr_t>(m_value);
     182                 :         }
     183                 : 
     184                 :         const void* m_value;
     185                 :     };
     186                 : 
     187                 :     struct ImmPtr : public TrustedImmPtr {
     188        12062415 :         explicit ImmPtr(const void* value)
     189        12062415 :             : TrustedImmPtr(value)
     190                 :         {
     191        12062415 :         }
     192                 :     };
     193                 :  
     194                 :     // TrustedImm32:
     195                 :     //
     196                 :     // A 32bit immediate operand to an instruction - this is wrapped in a
     197                 :     // class requiring explicit construction in order to prevent RegisterIDs
     198                 :     // (which are implemented as an enum) from accidentally being passed as
     199                 :     // immediate values.
     200                 :     struct TrustedImm32 {
     201        24930774 :         explicit TrustedImm32(int32_t value)
     202        24930774 :             : m_value(value)
     203                 : #if WTF_CPU_ARM || WTF_CPU_MIPS
     204                 :             , m_isPointer(false)
     205                 : #endif
     206                 :         {
     207        24930774 :         }
     208                 : 
     209                 : #if !WTF_CPU_X86_64
     210         6130009 :         explicit TrustedImm32(TrustedImmPtr ptr)
     211         6130009 :             : m_value(ptr.asIntptr())
     212                 : #if WTF_CPU_ARM || WTF_CPU_MIPS
     213                 :             , m_isPointer(true)
     214                 : #endif
     215                 :         {
     216         6130009 :         }
     217                 : #endif
     218                 : 
     219                 :         int32_t m_value;
     220                 : #if WTF_CPU_ARM || WTF_CPU_MIPS
     221                 :         // We rely on being able to regenerate code to recover exception handling
     222                 :         // information.  Since ARMv7 supports 16-bit immediates there is a danger
     223                 :         // that if pointer values change the layout of the generated code will change.
     224                 :         // To avoid this problem, always generate pointers (and thus Imm32s constructed
     225                 :         // from ImmPtrs) with a code sequence that is able  to represent  any pointer
     226                 :         // value - don't use a more compact form in these cases.
     227                 :         // Same for MIPS.
     228                 :         bool m_isPointer;
     229                 : #endif
     230                 :     };
     231                 : 
     232                 : 
     233                 :     struct Imm32 : public TrustedImm32 {
     234        24641319 :         explicit Imm32(int32_t value)
     235        24641319 :             : TrustedImm32(value)
     236                 :         {
     237        24641319 :         }
     238                 : #if !WTF_CPU_X86_64
     239         6130009 :         explicit Imm32(TrustedImmPtr ptr)
     240         6130009 :             : TrustedImm32(ptr)
     241                 :         {
     242         6130009 :         }
     243                 : #endif
     244                 :     };
     245                 : 
     246                 :     struct ImmDouble {
     247                 :         union {
     248                 :             struct {
     249                 : #if WTF_CPU_BIG_ENDIAN || WTF_CPU_MIDDLE_ENDIAN
     250                 :                 uint32_t msb, lsb;
     251                 : #else
     252                 :                 uint32_t lsb, msb;
     253                 : #endif
     254                 :             } s;
     255                 :             uint64_t u64;
     256                 :             double d;
     257                 :         } u;
     258                 : 
     259             116 :         explicit ImmDouble(double d) {
     260             116 :             u.d = d;
     261             116 :         }
     262                 :     };
     263                 : 
     264                 :     // Section 2: MacroAssembler code buffer handles
     265                 :     //
     266                 :     // The following types are used to reference items in the code buffer
     267                 :     // during JIT code generation.  For example, the type Jump is used to
     268                 :     // track the location of a jump instruction so that it may later be
     269                 :     // linked to a label marking its destination.
     270                 : 
     271                 : 
     272                 :     // Label:
     273                 :     //
     274                 :     // A Label records a point in the generated instruction stream, typically such that
     275                 :     // it may be used as a destination for a jump.
     276                 :     class Label {
     277                 :         template<class TemplateAssemblerType>
     278                 :         friend class AbstractMacroAssembler;
     279                 :         friend class Jump;
     280                 :         friend class MacroAssemblerCodeRef;
     281                 :         friend class LinkBuffer;
     282                 : 
     283                 :     public:
     284        47363367 :         Label()
     285        47363367 :         {
     286        47363367 :         }
     287                 : 
     288        46830175 :         Label(AbstractMacroAssembler<AssemblerType>* masm)
     289        46830175 :             : m_label(masm->m_assembler.label())
     290                 :         {
     291        46830175 :         }
     292                 :         
     293                 :         bool isUsed() const { return m_label.isUsed(); }
     294                 :         void used() { m_label.used(); }
     295          716980 :         bool isSet() const { return m_label.isValid(); }
     296                 :     private:
     297                 :         JmpDst m_label;
     298                 :     };
     299                 : 
     300                 :     // DataLabelPtr:
     301                 :     //
     302                 :     // A DataLabelPtr is used to refer to a location in the code containing a pointer to be
     303                 :     // patched after the code has been generated.
     304            6569 :     class DataLabelPtr {
     305                 :         template<class TemplateAssemblerType>
     306                 :         friend class AbstractMacroAssembler;
     307                 :         friend class LinkBuffer;
     308                 :     public:
     309        19463734 :         DataLabelPtr()
     310        19463734 :         {
     311        19463734 :         }
     312                 : 
     313         4756260 :         DataLabelPtr(AbstractMacroAssembler<AssemblerType>* masm)
     314         4756260 :             : m_label(masm->m_assembler.label())
     315                 :         {
     316         4756260 :         }
     317                 :         
     318                 :         bool isSet() const { return m_label.isValid(); }
     319                 : 
     320                 :     private:
     321                 :         JmpDst m_label;
     322                 :     };
     323                 : 
     324                 :     // DataLabel32:
     325                 :     //
     326                 :     // A DataLabel32 is used to refer to a location in the code containing a
     327                 :     // 32-bit constant to be patched after the code has been generated.
     328                 :     class DataLabel32 {
     329                 :         template<class TemplateAssemblerType>
     330                 :         friend class AbstractMacroAssembler;
     331                 :         friend class LinkBuffer;
     332                 :     public:
     333           30763 :         DataLabel32()
     334           30763 :         {
     335           30763 :         }
     336                 : 
     337           63841 :         DataLabel32(AbstractMacroAssembler<AssemblerType>* masm)
     338           63841 :             : m_label(masm->m_assembler.label())
     339                 :         {
     340           63841 :         }
     341                 : 
     342                 :     private:
     343                 :         JmpDst m_label;
     344                 :     };
     345                 : 
     346                 :     // Call:
     347                 :     //
     348                 :     // A Call object is a reference to a call instruction that has been planted
     349                 :     // into the code buffer - it is typically used to link the call, setting the
     350                 :     // relative offset such that when executed it will call to the desired
     351                 :     // destination.
     352                 :     class Call {
     353                 :         template<class TemplateAssemblerType>
     354                 :         friend class AbstractMacroAssembler;
     355                 : 
     356                 :     public:
     357                 :         enum Flags {
     358                 :             None = 0x0,
     359                 :             Linkable = 0x1,
     360                 :             Near = 0x2,
     361                 :             LinkableNear = 0x3
     362                 :         };
     363                 : 
     364         1419934 :         Call()
     365         1419934 :             : m_flags(None)
     366                 :         {
     367         1419934 :         }
     368                 :         
     369         4905615 :         Call(JmpSrc jmp, Flags flags)
     370                 :             : m_jmp(jmp)
     371         4905615 :             , m_flags(flags)
     372                 :         {
     373         4905615 :         }
     374                 : 
     375         7744413 :         bool isFlagSet(Flags flag)
     376                 :         {
     377         7744413 :             return !!(m_flags & flag);
     378                 :         }
     379                 : 
     380                 :         static Call fromTailJump(Jump jump)
     381                 :         {
     382                 :             return Call(jump.m_jmp, Linkable);
     383                 :         }
     384                 : 
     385                 :         JmpSrc m_jmp;
     386                 :     private:
     387                 :         Flags m_flags;
     388                 :     };
     389                 : 
     390                 :     // Jump:
     391                 :     //
     392                 :     // A jump object is a reference to a jump instruction that has been planted
     393                 :     // into the code buffer - it is typically used to link the jump, setting the
     394                 :     // relative offset such that when executed it will jump to the desired
     395                 :     // destination.
     396         2951656 :     class Jump {
     397                 :         template<class TemplateAssemblerType>
     398                 :         friend class AbstractMacroAssembler;
     399                 :         friend class Call;
     400                 :         friend class LinkBuffer;
     401                 :     public:
     402        10975224 :         Jump()
     403        10975224 :         {
     404        10975224 :         }
     405                 :         
     406        17707037 :         Jump(JmpSrc jmp)    
     407        17707037 :             : m_jmp(jmp)
     408                 :         {
     409        17707037 :         }
     410                 :         
     411          557155 :         void link(AbstractMacroAssembler<AssemblerType>* masm)
     412                 :         {
     413          557155 :             masm->m_assembler.linkJump(m_jmp, masm->m_assembler.label());
     414          557155 :         }
     415                 :         
     416         7045481 :         void linkTo(Label label, AbstractMacroAssembler<AssemblerType>* masm)
     417                 :         {
     418         7045481 :             masm->m_assembler.linkJump(m_jmp, label.m_label);
     419         7045481 :         }
     420                 : 
     421                 :     private:
     422                 :         JmpSrc m_jmp;
     423                 :     };
     424                 : 
     425                 :     // JumpList:
     426                 :     //
     427                 :     // A JumpList is a set of Jump objects.
     428                 :     // All jumps in the set will be linked to the same destination.
     429         3007903 :     class JumpList {
     430                 :         friend class LinkBuffer;
     431                 : 
     432                 :     public:
     433                 :         typedef js::Vector<Jump, 16 ,js::SystemAllocPolicy > JumpVector;
     434                 : 
     435          883811 :         JumpList() {}
     436                 : 
     437         2124092 :         JumpList(const JumpList &other)
     438         2124092 :         {
     439         2124092 :             m_jumps.append(other.m_jumps);
     440         2124092 :         }
     441                 : 
     442                 :         JumpList &operator=(const JumpList &other)
     443                 :         {
     444                 :             m_jumps.clear();
     445                 :             m_jumps.append(other.m_jumps);
     446                 :             return *this;
     447                 :         }
     448                 : 
     449          348156 :         void link(AbstractMacroAssembler<AssemblerType>* masm)
     450                 :         {
     451          348156 :             size_t size = m_jumps.length();
     452          837411 :             for (size_t i = 0; i < size; ++i)
     453          489255 :                 m_jumps[i].link(masm);
     454          348156 :             m_jumps.clear();
     455          348156 :         }
     456                 :         
     457           47508 :         void linkTo(Label label, AbstractMacroAssembler<AssemblerType>* masm)
     458                 :         {
     459           47508 :             size_t size = m_jumps.length();
     460          135302 :             for (size_t i = 0; i < size; ++i)
     461           87794 :                 m_jumps[i].linkTo(label, masm);
     462           47508 :             m_jumps.clear();
     463           47508 :         }
     464                 :         
     465          577049 :         void append(Jump jump)
     466                 :         {
     467          577049 :             m_jumps.append(jump);
     468          577049 :         }
     469                 :         
     470          408113 :         void append(const JumpList& other)
     471                 :         {
     472          408113 :             m_jumps.append(other.m_jumps.begin(), other.m_jumps.length());
     473          408113 :         }
     474                 : 
     475          202547 :         void clear()
     476                 :         {
     477          202547 :             m_jumps.clear();
     478          202547 :         }
     479                 : 
     480          113408 :         bool empty()
     481                 :         {
     482          113408 :             return !m_jumps.length();
     483                 :         }
     484                 :         
     485                 :         const JumpVector& jumps() const { return m_jumps; }
     486                 : 
     487                 :     private:
     488                 :         JumpVector m_jumps;
     489                 :     };
     490                 : 
     491                 : 
     492                 :     // Section 3: Misc admin methods
     493                 : 
     494                 :     static CodePtr trampolineAt(CodeRef ref, Label label)
     495                 :     {
     496                 :         return CodePtr(AssemblerType::getRelocatedAddress(ref.m_code.dataLocation(), label.m_label));
     497                 :     }
     498                 : 
     499         7547327 :     size_t size()
     500                 :     {
     501         7547327 :         return m_assembler.size();
     502                 :     }
     503                 : 
     504                 :     unsigned char *buffer()
     505                 :     {
     506                 :         return m_assembler.buffer();
     507                 :     }
     508                 : 
     509         2260344 :     bool oom()
     510                 :     {
     511         2260344 :         return m_assembler.oom();
     512                 :     }
     513                 : 
     514          257654 :     void executableCopy(void* buffer)
     515                 :     {
     516          257654 :         ASSERT(!oom());
     517          257654 :         m_assembler.executableCopy(buffer);
     518          257654 :     }
     519                 : 
     520        46255840 :     Label label()
     521                 :     {
     522        46255840 :         return Label(this);
     523                 :     }
     524                 : 
     525           63841 :     DataLabel32 dataLabel32()
     526                 :     {
     527           63841 :         return DataLabel32(this);
     528                 :     }
     529                 :     
     530                 :     Label align()
     531                 :     {
     532                 :         m_assembler.align(16);
     533                 :         return Label(this);
     534                 :     }
     535                 : 
     536          527351 :     ptrdiff_t differenceBetween(Label from, Jump to)
     537                 :     {
     538          527351 :         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp);
     539                 :     }
     540                 : 
     541                 :     ptrdiff_t differenceBetween(Label from, Call to)
     542                 :     {
     543                 :         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp);
     544                 :     }
     545                 : 
     546         8288961 :     ptrdiff_t differenceBetween(Label from, Label to)
     547                 :     {
     548         8288961 :         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
     549                 :     }
     550                 : 
     551          476707 :     ptrdiff_t differenceBetween(Label from, DataLabelPtr to)
     552                 :     {
     553          476707 :         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
     554                 :     }
     555                 : 
     556           33078 :     ptrdiff_t differenceBetween(Label from, DataLabel32 to)
     557                 :     {
     558           33078 :         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
     559                 :     }
     560                 : 
     561           63841 :     ptrdiff_t differenceBetween(DataLabel32 from, Label to)
     562                 :     {
     563           63841 :         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
     564                 :     }
     565                 : 
     566                 :     ptrdiff_t differenceBetween(DataLabelPtr from, Label to)
     567                 :     {
     568                 :         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
     569                 :     }
     570                 : 
     571                 :     ptrdiff_t differenceBetween(DataLabelPtr from, Jump to)
     572                 :     {
     573                 :         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp);
     574                 :     }
     575                 : 
     576                 :     ptrdiff_t differenceBetween(DataLabelPtr from, DataLabelPtr to)
     577                 :     {
     578                 :         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
     579                 :     }
     580                 : 
     581                 :     ptrdiff_t differenceBetween(DataLabelPtr from, Call to)
     582                 :     {
     583                 :         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp);
     584                 :     }
     585                 : 
     586                 : protected:
     587                 :     AssemblerType m_assembler;
     588                 : 
     589                 :     friend class LinkBuffer;
     590                 :     friend class RepatchBuffer;
     591                 : 
     592         9954223 :     static void linkJump(void* code, Jump jump, CodeLocationLabel target)
     593                 :     {
     594         9954223 :         AssemblerType::linkJump(code, jump.m_jmp, target.dataLocation());
     595         9954223 :     }
     596                 : 
     597         2325033 :     static void linkPointer(void* code, typename AssemblerType::JmpDst label, void* value)
     598                 :     {
     599         2325033 :         AssemblerType::linkPointer(code, label, value);
     600         2325033 :     }
     601                 : 
     602         2037320 :     static void* getLinkerAddress(void* code, typename AssemblerType::JmpSrc label)
     603                 :     {
     604         2037320 :         return AssemblerType::getRelocatedAddress(code, label);
     605                 :     }
     606                 : 
     607        15988181 :     static void* getLinkerAddress(void* code, typename AssemblerType::JmpDst label)
     608                 :     {
     609        15988181 :         return AssemblerType::getRelocatedAddress(code, label);
     610                 :     }
     611                 : 
     612         4762722 :     static unsigned getLinkerCallReturnOffset(Call call)
     613                 :     {
     614         4762722 :         return AssemblerType::getCallReturnOffset(call.m_jmp);
     615                 :     }
     616                 : 
     617          347394 :     static void repatchJump(CodeLocationJump jump, CodeLocationLabel destination)
     618                 :     {
     619          347394 :         AssemblerType::relinkJump(jump.dataLocation(), destination.dataLocation());
     620          347394 :     }
     621                 : 
     622           13004 :     static bool canRepatchJump(CodeLocationJump jump, CodeLocationLabel destination)
     623                 :     {
     624           13004 :         return AssemblerType::canRelinkJump(jump.dataLocation(), destination.dataLocation());
     625                 :     }
     626                 : 
     627                 :     static void repatchNearCall(CodeLocationNearCall nearCall, CodeLocationLabel destination)
     628                 :     {
     629                 :         AssemblerType::relinkCall(nearCall.dataLocation(), destination.executableAddress());
     630                 :     }
     631                 : 
     632          672202 :     static void repatchInt32(CodeLocationDataLabel32 dataLabel32, int32_t value)
     633                 :     {
     634          672202 :         AssemblerType::repatchInt32(dataLabel32.dataLocation(), value);
     635          672202 :     }
     636                 : 
     637          355607 :     static void repatchPointer(CodeLocationDataLabelPtr dataLabelPtr, void* value)
     638                 :     {
     639          355607 :         AssemblerType::repatchPointer(dataLabelPtr.dataLocation(), value);
     640          355607 :     }
     641                 : 
     642          101792 :     static void repatchLoadPtrToLEA(CodeLocationInstruction instruction)
     643                 :     {
     644          101792 :         AssemblerType::repatchLoadPtrToLEA(instruction.dataLocation());
     645          101792 :     }
     646                 : 
     647                 :     static void repatchLEAToLoadPtr(CodeLocationInstruction instruction)
     648                 :     {
     649                 :         AssemblerType::repatchLEAToLoadPtr(instruction.dataLocation());
     650                 :     }
     651                 : };
     652                 : 
     653                 : } // namespace JSC
     654                 : 
     655                 : #endif // ENABLE(ASSEMBLER)
     656                 : 
     657                 : #endif // AbstractMacroAssembler_h

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