1 /* Definitions of target machine for GNU compiler. 2 Renesas H8/300 version 3 Copyright (C) 2000-2022 Free Software Foundation, Inc. 4 Contributed by Steve Chamberlain (sac (at) cygnus.com), 5 Jim Wilson (wilson (at) cygnus.com), and Doug Evans (dje (at) cygnus.com). 6 7 This file is part of GCC. 8 9 GCC is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3, or (at your option) 12 any later version. 13 14 GCC is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with GCC; see the file COPYING3. If not see 21 <http://www.gnu.org/licenses/>. */ 22 23 #ifndef GCC_H8300_PROTOS_H 24 #define GCC_H8300_PROTOS_H 25 26 /* Declarations for functions used in insn-output.cc. */ 27 #ifdef RTX_CODE 28 extern unsigned int compute_mov_length (rtx *); 29 extern const char *output_plussi (rtx *, bool); 30 extern unsigned int compute_plussi_length (rtx *, bool); 31 extern const char *output_a_shift (rtx[4], rtx_code); 32 extern unsigned int compute_a_shift_length (rtx[4], rtx_code); 33 extern const char *output_a_rotate (enum rtx_code, rtx *); 34 extern unsigned int compute_a_rotate_length (rtx *); 35 extern const char *output_simode_bld (int, rtx[]); 36 extern void final_prescan_insn (rtx_insn *, rtx *, int); 37 extern int h8300_expand_movsi (rtx[]); 38 extern machine_mode h8300_select_cc_mode (RTX_CODE, rtx, rtx); 39 extern const char *output_logical_op (machine_mode, rtx_code code, 40 rtx *, rtx_insn *); 41 extern unsigned int compute_logical_op_length (machine_mode, rtx_code, 42 rtx *, rtx_insn *); 43 44 extern int compute_a_shift_cc (rtx *, rtx_code); 45 #ifdef HAVE_ATTR_cc 46 extern enum attr_cc compute_plussi_cc (rtx *); 47 #endif 48 extern void h8300_expand_store (rtx[]); 49 extern bool expand_a_shift (machine_mode, enum rtx_code, rtx[]); 50 extern int h8300_shift_needs_scratch_p (int, machine_mode, rtx_code); 51 extern int expand_a_rotate (rtx[]); 52 extern int fix_bit_operand (rtx *, enum rtx_code); 53 extern int h8300_adjust_insn_length (rtx, int); 54 extern void split_adds_subs (machine_mode, rtx[]); 55 56 extern int h8300_eightbit_constant_address_p (rtx); 57 extern int h8300_tiny_constant_address_p (rtx); 58 extern int byte_accesses_mergeable_p (rtx, rtx); 59 extern int same_cmp_preceding_p (rtx_insn *); 60 extern int same_cmp_following_p (rtx_insn *); 61 62 /* Used in builtins.cc */ 63 extern rtx h8300_return_addr_rtx (int, rtx); 64 65 /* Classifies an h8sx shift operation. 66 67 H8SX_SHIFT_NONE 68 The shift cannot be done in a single instruction. 69 70 H8SX_SHIFT_UNARY 71 The shift is effectively a unary operation. The instruction will 72 allow any sort of destination operand and have a format similar 73 to neg and not. This is true of certain power-of-2 shifts. 74 75 H8SX_SHIFT_BINARY 76 The shift is a binary operation. The destination must be a 77 register and the source can be a register or a constant. */ 78 enum h8sx_shift_type { 79 H8SX_SHIFT_NONE, 80 H8SX_SHIFT_UNARY, 81 H8SX_SHIFT_BINARY 82 }; 83 84 extern enum h8sx_shift_type h8sx_classify_shift (machine_mode, enum rtx_code, rtx); 85 extern int h8300_ldm_stm_parallel (rtvec, int, int); 86 #endif /* RTX_CODE */ 87 88 #ifdef TREE_CODE 89 extern int h8300_funcvec_function_p (tree); 90 extern int h8300_eightbit_data_p (tree); 91 extern int h8300_tiny_data_p (tree); 92 #endif /* TREE_CODE */ 93 94 extern int h8300_can_use_return_insn_p (void); 95 extern void h8300_expand_prologue (void); 96 extern void h8300_expand_epilogue (bool); 97 extern int h8300_current_function_interrupt_function_p (void); 98 extern int h8300_current_function_monitor_function_p (void); 99 extern int h8300_initial_elimination_offset (int, int); 100 extern int h8300_regs_ok_for_stm (int, rtx[]); 101 extern int h8300_hard_regno_rename_ok (unsigned int, unsigned int); 102 extern bool h8300_move_ok (rtx, rtx); 103 104 struct cpp_reader; 105 extern void h8300_pr_interrupt (struct cpp_reader *); 106 extern void h8300_pr_saveall (struct cpp_reader *); 107 extern enum reg_class h8300_reg_class_from_letter (int); 108 extern unsigned int h8300_insn_length_from_table (rtx_insn *, rtx *); 109 extern const char * output_h8sx_shift (rtx *, int, int); 110 extern bool h8300_operands_match_p (rtx *); 111 extern bool h8sx_mergeable_memrefs_p (rtx, rtx); 112 extern poly_int64 h8300_push_rounding (poly_int64); 113 114 #endif /* ! GCC_H8300_PROTOS_H */ 115
Indexes created Wed Mar 25 00:23:37 UTC 2026