Add mips64 port.

src/mips64/regexp-macro-assembler-mips64.h

 // 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/mips/assembler-mips-inl.h"
-#include "src/mips/assembler-mips.h"
-#include "src/mips/macro-assembler-mips.h"
+#include "src/mips64/assembler-mips64-inl.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(Mode mode, int registers_to_save, Zone* zone);
   virtual ~RegExpMacroAssemblerMIPS();
   virtual int stack_limit_slack();
@@ skipping 63 matching lines @@
   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 int 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 + 20;
+  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 t2; }
+  inline Register current_input_offset() { return a6; }
 
   // The register containing the current character after LoadCurrentCharacter.
-  inline Register current_character() { return t3; }
+  inline Register current_character() { return a7; }
 
   // Register holding address of the end of the input string.
-  inline Register end_of_input_address() { return t6; }
+  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 t4; }
+  inline Register backtrack_stackpointer() { return t0; }
 
   // Register holding pointer to the current code object.
-  inline Register code_pointer() { return t1; }
+  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);
@@ skipping 39 matching lines @@
   Label stack_overflow_label_;
   Label internal_failure_label_;
 };
 
 #endif  // V8_INTERPRETED_REGEXP
 
 
 }}  // namespace v8::internal
 
 #endif  // V8_MIPS_REGEXP_MACRO_ASSEMBLER_MIPS_H_