opcode.h

   1 #ifndef OPCODE_H
   2 #define OPCODE_H
   3
   4 #include "symbol.h"
   5
   6 enum opcode {
   7 #define OPCODE(OP,NG,SW,SG,TF,N,FL)  OP_##OP,
   8 #define OPCODE_RANGE(OP,S,E)    OP_##OP = OP_##S, OP_##OP##_END = OP_##E,
   9 #include "opcode.def"
  10 #undef  OPCODE
  11 #undef  OPCODE_RANGE
  12         OP_LAST,                        /* keep this one last! */
  13 };
  14
  15 extern const struct opcode_table {
  16         int     negate:8;
  17         int     swap:8;
  18         int     sign:8;
  19         int     to_float:8;
  20         unsigned int arity:2;
  21         unsigned int :6;
  22         unsigned int flags:8;
  23 #define                 OPF_NONE        0
  24 #define                 OPF_TARGET      (1 << 0)
  25 #define                 OPF_COMMU       (1 << 1)
  26 #define                 OPF_ASSOC       (1 << 2)
  27 #define                 OPF_UNOP        (1 << 3)
  28 #define                 OPF_BINOP       (1 << 4)
  29 #define                 OPF_COMPARE     (1 << 5)
  30 #define                 OPF_SIGNED      (1 << 6)
  31 #define                 OPF_UNSIGNED    (1 << 7)
  32 } opcode_table[];
  33
  34
  35 static inline int opcode_negate(int opcode)
  36 {
  37         return opcode_table[opcode].negate;
  38 }
  39
  40 static inline int opcode_swap(int opcode)
  41 {
  42         return opcode_table[opcode].swap;
  43 }
  44
  45 static inline int opcode_float(int opcode, struct symbol *type)
  46 {
  47         if (!type || !is_float_type(type))
  48                 return opcode;
  49         return opcode_table[opcode].to_float;
  50 }
  51
  52 #endif