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Unified Diff: src/mips64/regexp-macro-assembler-mips64.h

Issue 1285163003: Move regexp implementation into its own folder. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: addressed comment Created 5 years, 4 months ago
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Index: src/mips64/regexp-macro-assembler-mips64.h
diff --git a/src/mips64/regexp-macro-assembler-mips64.h b/src/mips64/regexp-macro-assembler-mips64.h
deleted file mode 100644
index 8ec36a0e78c6d802f077b0646d02e7a9b11ccb52..0000000000000000000000000000000000000000
--- a/src/mips64/regexp-macro-assembler-mips64.h
+++ /dev/null
@@ -1,267 +0,0 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef V8_MIPS_REGEXP_MACRO_ASSEMBLER_MIPS_H_
-#define V8_MIPS_REGEXP_MACRO_ASSEMBLER_MIPS_H_
-
-#include "src/macro-assembler.h"
-#include "src/mips64/assembler-mips64.h"
-#include "src/mips64/macro-assembler-mips64.h"
-
-namespace v8 {
-namespace internal {
-
-#ifndef V8_INTERPRETED_REGEXP
-class RegExpMacroAssemblerMIPS: public NativeRegExpMacroAssembler {
- public:
- RegExpMacroAssemblerMIPS(Isolate* isolate, Zone* zone, Mode mode,
- int registers_to_save);
- virtual ~RegExpMacroAssemblerMIPS();
- 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);
- // 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);
- virtual bool CanReadUnaligned();
-
- // Called from RegExp if the stack-guard is triggered.
- // If the code object is relocated, the return address is fixed before
- // returning.
- static int64_t CheckStackGuardState(Address* return_address, Code* re_code,
- Address re_frame);
-
- void print_regexp_frame_constants();
-
- private:
-#if defined(MIPS_ABI_N64)
- // Offsets from frame_pointer() of function parameters and stored registers.
- static const int kFramePointer = 0;
-
- // Above the frame pointer - Stored registers and stack passed parameters.
- // Registers s0 to s7, fp, and ra.
- static const int kStoredRegisters = kFramePointer;
- // Return address (stored from link register, read into pc on return).
-
-// TODO(plind): This 9 - is 8 s-regs (s0..s7) plus fp.
-
- static const int kReturnAddress = kStoredRegisters + 9 * kPointerSize;
- static const int kSecondaryReturnAddress = kReturnAddress + kPointerSize;
- // Stack frame header.
- static const int kStackFrameHeader = kSecondaryReturnAddress;
- // Stack parameters placed by caller.
- static const int kIsolate = kStackFrameHeader + kPointerSize;
-
- // Below the frame pointer.
- // Register parameters stored by setup code.
- static const int kDirectCall = kFramePointer - kPointerSize;
- static const int kStackHighEnd = kDirectCall - kPointerSize;
- static const int kNumOutputRegisters = kStackHighEnd - kPointerSize;
- static const int kRegisterOutput = kNumOutputRegisters - kPointerSize;
- static const int kInputEnd = kRegisterOutput - kPointerSize;
- static const int kInputStart = kInputEnd - kPointerSize;
- static const int kStartIndex = kInputStart - kPointerSize;
- static const int kInputString = kStartIndex - kPointerSize;
- // When adding local variables remember to push space for them in
- // the frame in GetCode.
- static const int kSuccessfulCaptures = kInputString - kPointerSize;
- static const int kInputStartMinusOne = kSuccessfulCaptures - kPointerSize;
- // First register address. Following registers are below it on the stack.
- static const int kRegisterZero = kInputStartMinusOne - kPointerSize;
-
-#elif defined(MIPS_ABI_O32)
- // Offsets from frame_pointer() of function parameters and stored registers.
- static const int kFramePointer = 0;
-
- // Above the frame pointer - Stored registers and stack passed parameters.
- // Registers s0 to s7, fp, and ra.
- static const int kStoredRegisters = kFramePointer;
- // Return address (stored from link register, read into pc on return).
- static const int kReturnAddress = kStoredRegisters + 9 * kPointerSize;
- static const int kSecondaryReturnAddress = kReturnAddress + kPointerSize;
- // Stack frame header.
- static const int kStackFrameHeader = kReturnAddress + kPointerSize;
- // Stack parameters placed by caller.
- static const int kRegisterOutput =
- kStackFrameHeader + 4 * kPointerSize + kPointerSize;
- static const int kNumOutputRegisters = kRegisterOutput + kPointerSize;
- static const int kStackHighEnd = kNumOutputRegisters + kPointerSize;
- static const int kDirectCall = kStackHighEnd + kPointerSize;
- static const int kIsolate = kDirectCall + kPointerSize;
-
- // Below the frame pointer.
- // Register parameters stored by setup code.
- static const int kInputEnd = kFramePointer - kPointerSize;
- static const int kInputStart = kInputEnd - kPointerSize;
- static const int kStartIndex = kInputStart - kPointerSize;
- static const int kInputString = kStartIndex - kPointerSize;
- // When adding local variables remember to push space for them in
- // the frame in GetCode.
- static const int kSuccessfulCaptures = kInputString - kPointerSize;
- static const int kInputStartMinusOne = kSuccessfulCaptures - kPointerSize;
- // First register address. Following registers are below it on the stack.
- static const int kRegisterZero = kInputStartMinusOne - kPointerSize;
-
-#else
-# error "undefined MIPS ABI"
-#endif
-
- // 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(Register scratch);
-
- // The ebp-relative location of a regexp register.
- MemOperand register_location(int register_index);
-
- // Register holding the current input position as negative offset from
- // the end of the string.
- inline Register current_input_offset() { return a6; }
-
- // The register containing the current character after LoadCurrentCharacter.
- inline Register current_character() { return a7; }
-
- // Register holding address of the end of the input string.
- inline Register end_of_input_address() { return t2; }
-
- // Register holding the frame address. Local variables, parameters and
- // regexp registers are addressed relative to this.
- inline Register frame_pointer() { return fp; }
-
- // The register containing the backtrack stack top. Provides a meaningful
- // name to the register.
- inline Register backtrack_stackpointer() { return t0; }
-
- // Register holding pointer to the current code object.
- inline Register code_pointer() { return a5; }
-
- // 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(Label* to,
- Condition condition,
- Register rs,
- const Operand& rt);
-
- // 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,
- Condition cond,
- Register rs,
- const Operand& rt);
- inline void SafeReturn();
- inline void SafeCallTarget(Label* name);
-
- // Pushes the value of a register on the backtrack stack. Decrements the
- // stack pointer by a word size and stores the register's value there.
- inline void Push(Register source);
-
- // Pops a value from the backtrack stack. Reads the word at the stack pointer
- // and increments it by a word size.
- inline void Pop(Register target);
-
- Isolate* isolate() const { return masm_->isolate(); }
-
- MacroAssembler* masm_;
-
- // Which mode to generate code for (Latin1 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_;
- Label internal_failure_label_;
-};
-
-#endif // V8_INTERPRETED_REGEXP
-
-
-}} // namespace v8::internal
-
-#endif // V8_MIPS_REGEXP_MACRO_ASSEMBLER_MIPS_H_
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