gcc/bytecode.h

   1 /* Bytecode definitions for GNU C-compiler.
   2    Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU CC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU CC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21
  22 extern int output_bytecode;
  23 extern int stack_depth;
  24 extern int max_stack_depth;
  25
  26 /* Emit DI constant according to target machine word ordering */
  27
  28 #define bc_emit_bytecode_DI_const(CST)                          \
  29 { int opcode;                                                   \
  30   opcode = (WORDS_BIG_ENDIAN                                    \
  31             ? TREE_INT_CST_HIGH (CST)                           \
  32             : TREE_INT_CST_LOW (CST));                          \
  33   bc_emit_bytecode_const ((char *) &opcode, sizeof opcode);     \
  34   opcode = (WORDS_BIG_ENDIAN                                    \
  35             ? TREE_INT_CST_LOW (CST)                            \
  36             : TREE_INT_CST_HIGH (CST));                         \
  37   bc_emit_bytecode_const ((char *) &opcode, sizeof opcode);     \
  38 }
  39
  40 extern void bc_expand_expr ();
  41 extern void bc_output_data_constructor ();
  42 extern void bc_store_field ();
  43 extern void bc_load_bit_field ();
  44 extern void bc_store_bit_field ();
  45 extern void bc_push_offset_and_size ();
  46 extern void bc_init_mode_to_code_map ();
  47
  48 /* These are just stubs, so the compiler will compile for targets
  49    that aren't yet supported by the bytecode generator. */
  50
  51 #ifndef TARGET_SUPPORTS_BYTECODE
  52
  53 #define MACHINE_SEG_ALIGN 1
  54 #define INT_ALIGN 1
  55 #define PTR_ALIGN 1
  56 #define NAMES_HAVE_UNDERSCORES
  57 #define BC_NOP   (0)
  58 #define BC_GLOBALIZE_LABEL(FP, NAME) BC_NOP
  59 #define BC_OUTPUT_COMMON(FP, NAME, SIZE, ROUNDED) BC_NOP
  60 #define BC_OUTPUT_BSS(FP, NAME, SIZE, ROUNDED)    BC_NOP
  61 #define BC_OUTPUT_LOCAL(FP, NAME, SIZE, ROUNDED)  BC_NOP
  62 #define BC_OUTPUT_ALIGN(FP, ALIGN)   BC_NOP
  63 #define BC_OUTPUT_LABEL(FP, NAME)    BC_NOP
  64 #define BC_OUTPUT_SKIP(FP, SIZE)     BC_NOP
  65 #define BC_OUTPUT_LABELREF(FP, NAME) BC_NOP
  66 #define BC_OUTPUT_FLOAT(FP, VAL)     BC_NOP
  67 #define BC_OUTPUT_DOUBLE(FP, VAL)    BC_NOP
  68 #define BC_OUTPUT_BYTE(FP, VAL)      BC_NOP
  69 #define BC_OUTPUT_FILE ASM_OUTPUT_FILE
  70 #define BC_OUTPUT_ASCII ASM_OUTPUT_ASCII
  71 #define BC_OUTPUT_IDENT ASM_OUTPUT_IDENT
  72 #define BCXSTR(RTX)  ((RTX)->bc_label)
  73 #define BC_WRITE_FILE(FP)            BC_NOP
  74 #define BC_WRITE_SEGSYM(SEGSYM, FP)  BC_NOP
  75 #define BC_WRITE_RELOC_ENTRY(SEGRELOC, FP, OFFSET) BC_NOP
  76 #define BC_START_BYTECODE_LINE(FP)   BC_NOP
  77 #define BC_WRITE_BYTECODE(SEP, VAL, FP) BC_NOP
  78 #define BC_WRITE_RTL(R, FP)          BC_NOP
  79 #define BC_EMIT_TRAMPOLINE(TRAMPSEG, CALLINFO) BC_NOP
  80 #define VALIDATE_STACK               BC_NOP
  81
  82 #endif /* !TARGET_SUPPORTS_BYTECODE */