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Diffstat (limited to 'src/3rdparty/v8/src/x64/regexp-macro-assembler-x64.h')
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1 files changed, 0 insertions, 304 deletions
diff --git a/src/3rdparty/v8/src/x64/regexp-macro-assembler-x64.h b/src/3rdparty/v8/src/x64/regexp-macro-assembler-x64.h deleted file mode 100644 index a082cf2..0000000 --- a/src/3rdparty/v8/src/x64/regexp-macro-assembler-x64.h +++ /dev/null @@ -1,304 +0,0 @@ -// Copyright 2012 the V8 project authors. All rights reserved. -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following -// disclaimer in the documentation and/or other materials provided -// with the distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived -// from this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -#ifndef V8_X64_REGEXP_MACRO_ASSEMBLER_X64_H_ -#define V8_X64_REGEXP_MACRO_ASSEMBLER_X64_H_ - -#include "x64/assembler-x64.h" -#include "x64/assembler-x64-inl.h" -#include "macro-assembler.h" -#include "code.h" -#include "x64/macro-assembler-x64.h" - -namespace v8 { -namespace internal { - -#ifndef V8_INTERPRETED_REGEXP - -class RegExpMacroAssemblerX64: public NativeRegExpMacroAssembler { - public: - RegExpMacroAssemblerX64(Mode mode, int registers_to_save, Zone* zone); - virtual ~RegExpMacroAssemblerX64(); - virtual int stack_limit_slack(); - virtual void AdvanceCurrentPosition(int by); - virtual void AdvanceRegister(int reg, int by); - virtual void Backtrack(); - virtual void Bind(Label* label); - virtual void CheckAtStart(Label* on_at_start); - virtual void CheckCharacter(uint32_t c, Label* on_equal); - virtual void CheckCharacterAfterAnd(uint32_t c, - uint32_t mask, - Label* on_equal); - virtual void CheckCharacterGT(uc16 limit, Label* on_greater); - virtual void CheckCharacterLT(uc16 limit, Label* on_less); - virtual void CheckCharacters(Vector<const uc16> str, - int cp_offset, - Label* on_failure, - bool check_end_of_string); - // A "greedy loop" is a loop that is both greedy and with a simple - // body. It has a particularly simple implementation. - virtual void CheckGreedyLoop(Label* on_tos_equals_current_position); - virtual void CheckNotAtStart(Label* on_not_at_start); - virtual void CheckNotBackReference(int start_reg, Label* on_no_match); - virtual void CheckNotBackReferenceIgnoreCase(int start_reg, - Label* on_no_match); - virtual void CheckNotCharacter(uint32_t c, Label* on_not_equal); - virtual void CheckNotCharacterAfterAnd(uint32_t c, - uint32_t mask, - Label* on_not_equal); - virtual void CheckNotCharacterAfterMinusAnd(uc16 c, - uc16 minus, - uc16 mask, - Label* on_not_equal); - virtual void CheckCharacterInRange(uc16 from, - uc16 to, - Label* on_in_range); - virtual void CheckCharacterNotInRange(uc16 from, - uc16 to, - Label* on_not_in_range); - virtual void CheckBitInTable(Handle<ByteArray> table, Label* on_bit_set); - - // Checks whether the given offset from the current position is before - // the end of the string. - virtual void CheckPosition(int cp_offset, Label* on_outside_input); - virtual bool CheckSpecialCharacterClass(uc16 type, - Label* on_no_match); - virtual void Fail(); - virtual Handle<HeapObject> GetCode(Handle<String> source); - virtual void GoTo(Label* label); - virtual void IfRegisterGE(int reg, int comparand, Label* if_ge); - virtual void IfRegisterLT(int reg, int comparand, Label* if_lt); - virtual void IfRegisterEqPos(int reg, Label* if_eq); - virtual IrregexpImplementation Implementation(); - virtual void LoadCurrentCharacter(int cp_offset, - Label* on_end_of_input, - bool check_bounds = true, - int characters = 1); - virtual void PopCurrentPosition(); - virtual void PopRegister(int register_index); - virtual void PushBacktrack(Label* label); - virtual void PushCurrentPosition(); - virtual void PushRegister(int register_index, - StackCheckFlag check_stack_limit); - virtual void ReadCurrentPositionFromRegister(int reg); - virtual void ReadStackPointerFromRegister(int reg); - virtual void SetCurrentPositionFromEnd(int by); - virtual void SetRegister(int register_index, int to); - virtual bool Succeed(); - virtual void WriteCurrentPositionToRegister(int reg, int cp_offset); - virtual void ClearRegisters(int reg_from, int reg_to); - virtual void WriteStackPointerToRegister(int reg); - - static Result Match(Handle<Code> regexp, - Handle<String> subject, - int* offsets_vector, - int offsets_vector_length, - int previous_index, - Isolate* isolate); - - static Result Execute(Code* code, - String* input, - int start_offset, - const byte* input_start, - const byte* input_end, - int* output, - bool at_start); - - // Called from RegExp if the stack-guard is triggered. - // If the code object is relocated, the return address is fixed before - // returning. - static int CheckStackGuardState(Address* return_address, - Code* re_code, - Address re_frame); - - private: - // Offsets from rbp of function parameters and stored registers. - static const int kFramePointer = 0; - // Above the frame pointer - function parameters and return address. - static const int kReturn_eip = kFramePointer + kPointerSize; - static const int kFrameAlign = kReturn_eip + kPointerSize; - -#ifdef _WIN64 - // Parameters (first four passed as registers, but with room on stack). - // In Microsoft 64-bit Calling Convention, there is room on the callers - // stack (before the return address) to spill parameter registers. We - // use this space to store the register passed parameters. - static const int kInputString = kFrameAlign; - // StartIndex is passed as 32 bit int. - static const int kStartIndex = kInputString + kPointerSize; - static const int kInputStart = kStartIndex + kPointerSize; - static const int kInputEnd = kInputStart + kPointerSize; - static const int kRegisterOutput = kInputEnd + kPointerSize; - // For the case of global regular expression, we have room to store at least - // one set of capture results. For the case of non-global regexp, we ignore - // this value. NumOutputRegisters is passed as 32-bit value. The upper - // 32 bit of this 64-bit stack slot may contain garbage. - static const int kNumOutputRegisters = kRegisterOutput + kPointerSize; - static const int kStackHighEnd = kNumOutputRegisters + kPointerSize; - // DirectCall is passed as 32 bit int (values 0 or 1). - static const int kDirectCall = kStackHighEnd + kPointerSize; - static const int kIsolate = kDirectCall + kPointerSize; -#else - // In AMD64 ABI Calling Convention, the first six integer parameters - // are passed as registers, and caller must allocate space on the stack - // if it wants them stored. We push the parameters after the frame pointer. - static const int kInputString = kFramePointer - kPointerSize; - static const int kStartIndex = kInputString - kPointerSize; - static const int kInputStart = kStartIndex - kPointerSize; - static const int kInputEnd = kInputStart - kPointerSize; - static const int kRegisterOutput = kInputEnd - kPointerSize; - // For the case of global regular expression, we have room to store at least - // one set of capture results. For the case of non-global regexp, we ignore - // this value. - static const int kNumOutputRegisters = kRegisterOutput - kPointerSize; - static const int kStackHighEnd = kFrameAlign; - static const int kDirectCall = kStackHighEnd + kPointerSize; - static const int kIsolate = kDirectCall + kPointerSize; -#endif - -#ifdef _WIN64 - // Microsoft calling convention has three callee-saved registers - // (that we are using). We push these after the frame pointer. - static const int kBackup_rsi = kFramePointer - kPointerSize; - static const int kBackup_rdi = kBackup_rsi - kPointerSize; - static const int kBackup_rbx = kBackup_rdi - kPointerSize; - static const int kLastCalleeSaveRegister = kBackup_rbx; -#else - // AMD64 Calling Convention has only one callee-save register that - // we use. We push this after the frame pointer (and after the - // parameters). - static const int kBackup_rbx = kNumOutputRegisters - kPointerSize; - static const int kLastCalleeSaveRegister = kBackup_rbx; -#endif - - static const int kSuccessfulCaptures = kLastCalleeSaveRegister - kPointerSize; - // When adding local variables remember to push space for them in - // the frame in GetCode. - static const int kInputStartMinusOne = kSuccessfulCaptures - kPointerSize; - - // First register address. Following registers are below it on the stack. - static const int kRegisterZero = kInputStartMinusOne - kPointerSize; - - // Initial size of code buffer. - static const size_t kRegExpCodeSize = 1024; - - // Load a number of characters at the given offset from the - // current position, into the current-character register. - void LoadCurrentCharacterUnchecked(int cp_offset, int character_count); - - // Check whether preemption has been requested. - void CheckPreemption(); - - // Check whether we are exceeding the stack limit on the backtrack stack. - void CheckStackLimit(); - - // Generate a call to CheckStackGuardState. - void CallCheckStackGuardState(); - - // The rbp-relative location of a regexp register. - Operand register_location(int register_index); - - // The register containing the current character after LoadCurrentCharacter. - inline Register current_character() { return rdx; } - - // The register containing the backtrack stack top. Provides a meaningful - // name to the register. - inline Register backtrack_stackpointer() { return rcx; } - - // The registers containing a self pointer to this code's Code object. - inline Register code_object_pointer() { return r8; } - - // Byte size of chars in the string to match (decided by the Mode argument) - inline int char_size() { return static_cast<int>(mode_); } - - // Equivalent to a conditional branch to the label, unless the label - // is NULL, in which case it is a conditional Backtrack. - void BranchOrBacktrack(Condition condition, Label* to); - - void MarkPositionForCodeRelativeFixup() { - code_relative_fixup_positions_.Add(masm_.pc_offset(), zone()); - } - - void FixupCodeRelativePositions(); - - // Call and return internally in the generated code in a way that - // is GC-safe (i.e., doesn't leave absolute code addresses on the stack) - inline void SafeCall(Label* to); - inline void SafeCallTarget(Label* label); - inline void SafeReturn(); - - // Pushes the value of a register on the backtrack stack. Decrements the - // stack pointer (rcx) by a word size and stores the register's value there. - inline void Push(Register source); - - // Pushes a value on the backtrack stack. Decrements the stack pointer (rcx) - // by a word size and stores the value there. - inline void Push(Immediate value); - - // Pushes the Code object relative offset of a label on the backtrack stack - // (i.e., a backtrack target). Decrements the stack pointer (rcx) - // by a word size and stores the value there. - inline void Push(Label* label); - - // Pops a value from the backtrack stack. Reads the word at the stack pointer - // (rcx) and increments it by a word size. - inline void Pop(Register target); - - // Drops the top value from the backtrack stack without reading it. - // Increments the stack pointer (rcx) by a word size. - inline void Drop(); - - MacroAssembler masm_; - MacroAssembler::NoRootArrayScope no_root_array_scope_; - - ZoneList<int> code_relative_fixup_positions_; - - // Which mode to generate code for (ASCII or UC16). - Mode mode_; - - // One greater than maximal register index actually used. - int num_registers_; - - // Number of registers to output at the end (the saved registers - // are always 0..num_saved_registers_-1) - int num_saved_registers_; - - // Labels used internally. - Label entry_label_; - Label start_label_; - Label success_label_; - Label backtrack_label_; - Label exit_label_; - Label check_preempt_label_; - Label stack_overflow_label_; -}; - -#endif // V8_INTERPRETED_REGEXP - -}} // namespace v8::internal - -#endif // V8_X64_REGEXP_MACRO_ASSEMBLER_X64_H_ |