Move V8 to external/v8
Change-Id: If68025d67453785a651c5dfb34fad298c16676a4
diff --git a/src/arm/regexp-macro-assembler-arm.h b/src/arm/regexp-macro-assembler-arm.h
new file mode 100644
index 0000000..0711ac1
--- /dev/null
+++ b/src/arm/regexp-macro-assembler-arm.h
@@ -0,0 +1,268 @@
+// Copyright 2006-2008 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_ARM_REGEXP_MACRO_ASSEMBLER_ARM_H_
+#define V8_ARM_REGEXP_MACRO_ASSEMBLER_ARM_H_
+
+namespace v8 {
+namespace internal {
+
+
+#ifndef V8_NATIVE_REGEXP
+class RegExpMacroAssemblerARM: public RegExpMacroAssembler {
+ public:
+ RegExpMacroAssemblerARM();
+ virtual ~RegExpMacroAssemblerARM();
+};
+
+#else
+class RegExpMacroAssemblerARM: public NativeRegExpMacroAssembler {
+ public:
+ RegExpMacroAssemblerARM(Mode mode, int registers_to_save);
+ virtual ~RegExpMacroAssemblerARM();
+ 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 CheckNotRegistersEqual(int reg1, int reg2, Label* on_not_equal);
+ 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);
+ // 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,
+ int cp_offset,
+ bool check_offset,
+ Label* on_no_match);
+ virtual void Fail();
+ virtual Handle<Object> 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 SetRegister(int register_index, int to);
+ virtual void Succeed();
+ virtual void WriteCurrentPositionToRegister(int reg, int cp_offset);
+ virtual void ClearRegisters(int reg_from, int reg_to);
+ virtual void WriteStackPointerToRegister(int reg);
+
+ // 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 frame_pointer() of function parameters and stored registers.
+ static const int kFramePointer = 0;
+
+ // Above the frame pointer - Stored registers and stack passed parameters.
+ // Register 4..11.
+ static const int kStoredRegisters = kFramePointer;
+ // Return address (stored from link register, read into pc on return).
+ static const int kReturnAddress = kStoredRegisters + 8 * kPointerSize;
+ // Stack parameters placed by caller.
+ static const int kRegisterOutput = kReturnAddress + kPointerSize;
+ static const int kAtStart = kRegisterOutput + kPointerSize;
+ static const int kStackHighEnd = kAtStart + 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 kInputStartMinusOne = kInputString - 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;
+
+ static const int kBacktrackConstantPoolSize = 4;
+
+ // 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();
+
+ void EmitBacktrackConstantPool();
+ int GetBacktrackConstantPoolEntry();
+
+
+ // 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 r6; }
+
+ // The register containing the current character after LoadCurrentCharacter.
+ inline Register current_character() { return r7; }
+
+ // Register holding address of the end of the input string.
+ inline Register end_of_input_address() { return r10; }
+
+ // 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 r8; }
+
+ // Register holding pointer to the current code object.
+ inline Register code_pointer() { return r5; }
+
+ // 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);
+
+ // 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 = al);
+ 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);
+
+ // Before calling a C-function from generated code, align arguments on stack.
+ // After aligning the frame, non-register arguments must be stored in
+ // sp[0], sp[4], etc., not pushed. The argument count assumes all arguments
+ // are word sized.
+ // Some compilers/platforms require the stack to be aligned when calling
+ // C++ code.
+ // Needs a scratch register to do some arithmetic. This register will be
+ // trashed.
+ inline void FrameAlign(int num_arguments, Register scratch);
+
+ // Calls a C function and cleans up the space for arguments allocated
+ // by FrameAlign. The called function is not allowed to trigger a garbage
+ // collection.
+ inline void CallCFunction(ExternalReference function,
+ int num_arguments);
+
+ // Calls a C function and cleans up the frame alignment done by
+ // by FrameAlign. The called function *is* allowed to trigger a garbage
+ // collection, but may not take more than four arguments (no arguments
+ // passed on the stack), and the first argument will be a pointer to the
+ // return address.
+ inline void CallCFunctionUsingStub(ExternalReference function,
+ int num_arguments);
+
+
+ MacroAssembler* masm_;
+
+ // 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_;
+
+ // Manage a small pre-allocated pool for writing label targets
+ // to for pushing backtrack addresses.
+ int backtrack_constant_pool_offset_;
+ int backtrack_constant_pool_capacity_;
+
+ // 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_NATIVE_REGEXP
+
+
+}} // namespace v8::internal
+
+#endif // V8_ARM_REGEXP_MACRO_ASSEMBLER_ARM_H_