Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tag: v1_9_2_318
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 209 lines (161 sloc) 5.839 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208
/**********************************************************************

insnhelper.h - helper macros to implement each instructions

$Author$
created at: 04/01/01 15:50:34 JST

Copyright (C) 2004-2007 Koichi Sasada

**********************************************************************/

#ifndef RUBY_INSNHELPER_H
#define RUBY_INSNHELPER_H

/**
* VM Debug Level
*
* debug level:
* 0: no debug output
* 1: show instruction name
* 2: show stack frame when control stack frame is changed
* 3: show stack status
* 4: show register
* 5:
* 10: gc check
*/

#ifndef VMDEBUG
#define VMDEBUG 0
#endif

#if 0
#undef VMDEBUG
#define VMDEBUG 3
#endif

enum {
  BOP_PLUS,
  BOP_MINUS,
  BOP_MULT,
  BOP_DIV,
  BOP_MOD,
  BOP_EQ,
  BOP_EQQ,
  BOP_LT,
  BOP_LE,
  BOP_LTLT,
  BOP_AREF,
  BOP_ASET,
  BOP_LENGTH,
  BOP_SIZE,
  BOP_SUCC,
  BOP_GT,
  BOP_GE,
  BOP_NOT,
  BOP_NEQ,

  BOP_LAST_
};

extern char ruby_vm_redefined_flag[BOP_LAST_];
extern VALUE ruby_vm_const_missing_count;


/**********************************************************/
/* deal with stack */
/**********************************************************/

#define PUSH(x) (SET_SV(x), INC_SP(1))
#define TOPN(n) (*(GET_SP()-(n)-1))
#define POPN(n) (DEC_SP(n))
#define POP() (DEC_SP(1))
#define STACK_ADDR_FROM_TOP(n) (GET_SP()-(n))

#define GET_TOS() (tos) /* dummy */

/**********************************************************/
/* deal with registers */
/**********************************************************/

#define REG_CFP (reg_cfp)
#define REG_PC (REG_CFP->pc)
#define REG_SP (REG_CFP->sp)
#define REG_LFP (REG_CFP->lfp)
#define REG_DFP (REG_CFP->dfp)

#define RESTORE_REGS() do { \
REG_CFP = th->cfp; \
} while (0)

#define REG_A reg_a
#define REG_B reg_b

#ifdef COLLECT_USAGE_ANALYSIS
#define USAGE_ANALYSIS_REGISTER_HELPER(a, b, v) \
(USAGE_ANALYSIS_REGISTER(a, b), (v))
#else
#define USAGE_ANALYSIS_REGISTER_HELPER(a, b, v) (v)
#endif

/* PC */
#define GET_PC() (USAGE_ANALYSIS_REGISTER_HELPER(0, 0, REG_PC))
#define SET_PC(x) (REG_PC = (USAGE_ANALYSIS_REGISTER_HELPER(0, 1, x)))
#define GET_CURRENT_INSN() (*GET_PC())
#define GET_OPERAND(n) (GET_PC()[(n)])
#define ADD_PC(n) (SET_PC(REG_PC + (n)))

#define GET_PC_COUNT() (REG_PC - GET_ISEQ()->iseq_encoded)
#define JUMP(dst) (REG_PC += (dst))

/* FP */
#define GET_CFP() (USAGE_ANALYSIS_REGISTER_HELPER(2, 0, REG_CFP))
#define GET_LFP() (USAGE_ANALYSIS_REGISTER_HELPER(3, 0, REG_LFP))
#define SET_LFP(x) (REG_LFP = (USAGE_ANALYSIS_REGISTER_HELPER(3, 1, (x))))
#define GET_DFP() (USAGE_ANALYSIS_REGISTER_HELPER(4, 0, REG_DFP))
#define SET_DFP(x) (REG_DFP = (USAGE_ANALYSIS_REGISTER_HELPER(4, 1, (x))))

/* SP */
#define GET_SP() (USAGE_ANALYSIS_REGISTER_HELPER(1, 0, REG_SP))
#define SET_SP(x) (REG_SP = (USAGE_ANALYSIS_REGISTER_HELPER(1, 1, (x))))
#define INC_SP(x) (REG_SP += (USAGE_ANALYSIS_REGISTER_HELPER(1, 1, (x))))
#define DEC_SP(x) (REG_SP -= (USAGE_ANALYSIS_REGISTER_HELPER(1, 1, (x))))
#define SET_SV(x) (*GET_SP() = (x))
  /* set current stack value as x */

#define GET_SP_COUNT() (REG_SP - th->stack)

/* instruction sequence C struct */
#define GET_ISEQ() (GET_CFP()->iseq)

/**********************************************************/
/* deal with variables */
/**********************************************************/

#define GET_PREV_DFP(dfp) ((VALUE *)((dfp)[0] & ~0x03))

#define GET_GLOBAL(entry) rb_gvar_get((struct rb_global_entry*)entry)
#define SET_GLOBAL(entry, val) rb_gvar_set((struct rb_global_entry*)entry, val)

#define GET_CONST_INLINE_CACHE(dst) ((IC) * (GET_PC() + (dst) + 2))

/**********************************************************/
/* deal with values */
/**********************************************************/

#define GET_SELF() (USAGE_ANALYSIS_REGISTER_HELPER(5, 0, GET_CFP()->self))

/**********************************************************/
/* deal with control flow 2: method/iterator */
/**********************************************************/

#define COPY_CREF(c1, c2) do { \
NODE *__tmp_c2 = (c2); \
c1->nd_clss = __tmp_c2->nd_clss; \
c1->nd_visi = __tmp_c2->nd_visi;\
c1->nd_next = __tmp_c2->nd_next; \
} while (0)

#define CALL_METHOD(num, blockptr, flag, id, me, recv) do { \
VALUE v = vm_call_method(th, GET_CFP(), num, blockptr, flag, id, me, recv); \
if (v == Qundef) { \
RESTORE_REGS(); \
NEXT_INSN(); \
} \
else { \
val = v; \
} \
} while (0)

#define GET_BLOCK_PTR() \
((rb_block_t *)(GC_GUARDED_PTR_REF(GET_LFP()[0] & \
((GET_LFP()[0] & 0x02) - 0x02))))

/**********************************************************/
/* deal with control flow 3: exception */
/**********************************************************/


/**********************************************************/
/* others */
/**********************************************************/

/* optimize insn */
#define FIXNUM_2_P(a, b) ((a) & (b) & 1)
#define BASIC_OP_UNREDEFINED_P(op) (LIKELY(ruby_vm_redefined_flag[op] == 0))
#define HEAP_CLASS_OF(obj) RBASIC(obj)->klass

#ifndef USE_IC_FOR_SPECIALIZED_METHOD
#define USE_IC_FOR_SPECIALIZED_METHOD 1
#endif

#if USE_IC_FOR_SPECIALIZED_METHOD

#define CALL_SIMPLE_METHOD(num, id, recv) do { \
VALUE klass = CLASS_OF(recv); \
CALL_METHOD(num, 0, 0, id, vm_method_search(id, klass, ic), recv); \
} while (0)

#else

#define CALL_SIMPLE_METHOD(num, id, recv) do { \
VALUE klass = CLASS_OF(recv); \
CALL_METHOD(num, 0, 0, id, rb_method_entry(klass, id), recv); \
} while (0)

#endif

#endif /* RUBY_INSNHELPER_H */
Something went wrong with that request. Please try again.