src/regexp/bytecodes-irregexp.h

   1 // Copyright 2011 the V8 project authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5
   6 #ifndef V8_REGEXP_BYTECODES_IRREGEXP_H_
   7 #define V8_REGEXP_BYTECODES_IRREGEXP_H_
   8
   9 namespace v8 {
  10 namespace internal {
  11
  12
  13 const int BYTECODE_MASK = 0xff;
  14 // The first argument is packed in with the byte code in one word, but so it
  15 // has 24 bits, but it can be positive and negative so only use 23 bits for
  16 // positive values.
  17 const unsigned int MAX_FIRST_ARG = 0x7fffffu;
  18 const int BYTECODE_SHIFT = 8;
  19
  20 #define BYTECODE_ITERATOR(V)                                                   \
  21 V(BREAK,              0, 4)   /* bc8                                        */ \
  22 V(PUSH_CP,            1, 4)   /* bc8 pad24                                  */ \
  23 V(PUSH_BT,            2, 8)   /* bc8 pad24 offset32                         */ \
  24 V(PUSH_REGISTER,      3, 4)   /* bc8 reg_idx24                              */ \
  25 V(SET_REGISTER_TO_CP, 4, 8)   /* bc8 reg_idx24 offset32                     */ \
  26 V(SET_CP_TO_REGISTER, 5, 4)   /* bc8 reg_idx24                              */ \
  27 V(SET_REGISTER_TO_SP, 6, 4)   /* bc8 reg_idx24                              */ \
  28 V(SET_SP_TO_REGISTER, 7, 4)   /* bc8 reg_idx24                              */ \
  29 V(SET_REGISTER,       8, 8)   /* bc8 reg_idx24 value32                      */ \
  30 V(ADVANCE_REGISTER,   9, 8)   /* bc8 reg_idx24 value32                      */ \
  31 V(POP_CP,            10, 4)   /* bc8 pad24                                  */ \
  32 V(POP_BT,            11, 4)   /* bc8 pad24                                  */ \
  33 V(POP_REGISTER,      12, 4)   /* bc8 reg_idx24                              */ \
  34 V(FAIL,              13, 4)   /* bc8 pad24                                  */ \
  35 V(SUCCEED,           14, 4)   /* bc8 pad24                                  */ \
  36 V(ADVANCE_CP,        15, 4)   /* bc8 offset24                               */ \
  37 V(GOTO,              16, 8)   /* bc8 pad24 addr32                           */ \
  38 V(LOAD_CURRENT_CHAR, 17, 8)   /* bc8 offset24 addr32                        */ \
  39 V(LOAD_CURRENT_CHAR_UNCHECKED, 18, 4) /* bc8 offset24                       */ \
  40 V(LOAD_2_CURRENT_CHARS, 19, 8) /* bc8 offset24 addr32                       */ \
  41 V(LOAD_2_CURRENT_CHARS_UNCHECKED, 20, 4) /* bc8 offset24                    */ \
  42 V(LOAD_4_CURRENT_CHARS, 21, 8) /* bc8 offset24 addr32                       */ \
  43 V(LOAD_4_CURRENT_CHARS_UNCHECKED, 22, 4) /* bc8 offset24                    */ \
  44 V(CHECK_4_CHARS,     23, 12)  /* bc8 pad24 uint32 addr32                    */ \
  45 V(CHECK_CHAR,        24, 8)   /* bc8 pad8 uint16 addr32                     */ \
  46 V(CHECK_NOT_4_CHARS, 25, 12)  /* bc8 pad24 uint32 addr32                    */ \
  47 V(CHECK_NOT_CHAR,    26, 8)   /* bc8 pad8 uint16 addr32                     */ \
  48 V(AND_CHECK_4_CHARS, 27, 16)  /* bc8 pad24 uint32 uint32 addr32             */ \
  49 V(AND_CHECK_CHAR,    28, 12)  /* bc8 pad8 uint16 uint32 addr32              */ \
  50 V(AND_CHECK_NOT_4_CHARS, 29, 16) /* bc8 pad24 uint32 uint32 addr32          */ \
  51 V(AND_CHECK_NOT_CHAR, 30, 12) /* bc8 pad8 uint16 uint32 addr32              */ \
  52 V(MINUS_AND_CHECK_NOT_CHAR, 31, 12) /* bc8 pad8 uc16 uc16 uc16 addr32       */ \
  53 V(CHECK_CHAR_IN_RANGE, 32, 12) /* bc8 pad24 uc16 uc16 addr32                */ \
  54 V(CHECK_CHAR_NOT_IN_RANGE, 33, 12) /* bc8 pad24 uc16 uc16 addr32            */ \
  55 V(CHECK_BIT_IN_TABLE, 34, 24) /* bc8 pad24 addr32 bits128                   */ \
  56 V(CHECK_LT,          35, 8)   /* bc8 pad8 uc16 addr32                       */ \
  57 V(CHECK_GT,          36, 8)   /* bc8 pad8 uc16 addr32                       */ \
  58 V(CHECK_NOT_BACK_REF, 37, 8)  /* bc8 reg_idx24 addr32                       */ \
  59 V(CHECK_NOT_BACK_REF_NO_CASE, 38, 8) /* bc8 reg_idx24 addr32                */ \
  60 V(CHECK_NOT_REGS_EQUAL, 39, 12) /* bc8 regidx24 reg_idx32 addr32            */ \
  61 V(CHECK_REGISTER_LT, 40, 12)  /* bc8 reg_idx24 value32 addr32               */ \
  62 V(CHECK_REGISTER_GE, 41, 12)  /* bc8 reg_idx24 value32 addr32               */ \
  63 V(CHECK_REGISTER_EQ_POS, 42, 8) /* bc8 reg_idx24 addr32                     */ \
  64 V(CHECK_AT_START,    43, 8)   /* bc8 pad24 addr32                           */ \
  65 V(CHECK_NOT_AT_START, 44, 8)  /* bc8 pad24 addr32                           */ \
  66 V(CHECK_GREEDY,      45, 8)   /* bc8 pad24 addr32                           */ \
  67 V(ADVANCE_CP_AND_GOTO, 46, 8) /* bc8 offset24 addr32                        */ \
  68 V(SET_CURRENT_POSITION_FROM_END, 47, 4) /* bc8 idx24                        */
  69
  70 #define DECLARE_BYTECODES(name, code, length) \
  71   static const int BC_##name = code;
  72 BYTECODE_ITERATOR(DECLARE_BYTECODES)
  73 #undef DECLARE_BYTECODES
  74
  75 #define DECLARE_BYTECODE_LENGTH(name, code, length) \
  76   static const int BC_##name##_LENGTH = length;
  77 BYTECODE_ITERATOR(DECLARE_BYTECODE_LENGTH)
  78 #undef DECLARE_BYTECODE_LENGTH
  79 } }
  80
  81 #endif  // V8_REGEXP_BYTECODES_IRREGEXP_H_