src/lj_record.h

   1 /*
   2 ** Trace recorder (bytecode -> SSA IR).
   3 ** Copyright (C) 2005-2012 Mike Pall. See Copyright Notice in luajit.h
   4 */
   5
   6 #ifndef _LJ_RECORD_H
   7 #define _LJ_RECORD_H
   8
   9 #include "lj_obj.h"
  10 #include "lj_jit.h"
  11
  12 #if LJ_HASJIT
  13 /* Context for recording an indexed load/store. */
  14 typedef struct RecordIndex {
  15   TValue tabv;          /* Runtime value of table (or indexed object). */
  16   TValue keyv;          /* Runtime value of key. */
  17   TValue valv;          /* Runtime value of stored value. */
  18   TValue mobjv;         /* Runtime value of metamethod object. */
  19   GCtab *mtv;           /* Runtime value of metatable object. */
  20   cTValue *oldv;        /* Runtime value of previously stored value. */
  21   TRef tab;             /* Table (or indexed object) reference. */
  22   TRef key;             /* Key reference. */
  23   TRef val;             /* Value reference for a store or 0 for a load. */
  24   TRef mt;              /* Metatable reference. */
  25   TRef mobj;            /* Metamethod object reference. */
  26   int idxchain;         /* Index indirections left or 0 for raw lookup. */
  27 } RecordIndex;
  28
  29 LJ_FUNC int lj_record_objcmp(jit_State *J, TRef a, TRef b,
  30                              cTValue *av, cTValue *bv);
  31
  32 LJ_FUNC void lj_record_call(jit_State *J, BCReg func, ptrdiff_t nargs);
  33 LJ_FUNC void lj_record_tailcall(jit_State *J, BCReg func, ptrdiff_t nargs);
  34 LJ_FUNC void lj_record_ret(jit_State *J, BCReg rbase, ptrdiff_t gotresults);
  35
  36 LJ_FUNC int lj_record_mm_lookup(jit_State *J, RecordIndex *ix, MMS mm);
  37 LJ_FUNC TRef lj_record_idx(jit_State *J, RecordIndex *ix);
  38
  39 LJ_FUNC void lj_record_ins(jit_State *J);
  40 LJ_FUNC void lj_record_setup(jit_State *J);
  41 #endif
  42
  43 #endif