1 /* Definitions of target machine for GNU compiler. 2 Renesas H8/300 version 3 Copyright (C) 2000-2021 Free Software Foundation, Inc. 4 Contributed by Steve Chamberlain (sac@cygnus.com), 5 Jim Wilson (wilson@cygnus.com), and Doug Evans (dje@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.c. */ 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 *); 32 extern unsigned int compute_a_shift_length (rtx, rtx *); 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 void notice_update_cc (rtx, rtx_insn *); 40 extern const char *output_logical_op (machine_mode, rtx *); 41 extern unsigned int compute_logical_op_length (machine_mode, 42 rtx *); 43 44 extern int compute_logical_op_cc (machine_mode, rtx *); 45 extern int compute_a_shift_cc (rtx, rtx *); 46 #ifdef HAVE_ATTR_cc 47 extern enum attr_cc compute_plussi_cc (rtx *); 48 #endif 49 extern void h8300_expand_branch (rtx[]); 50 extern void h8300_expand_store (rtx[]); 51 extern bool expand_a_shift (machine_mode, enum rtx_code, rtx[]); 52 extern int h8300_shift_needs_scratch_p (int, machine_mode, rtx_code); 53 extern int expand_a_rotate (rtx[]); 54 extern int fix_bit_operand (rtx *, enum rtx_code); 55 extern int h8300_adjust_insn_length (rtx, int); 56 extern void split_adds_subs (machine_mode, rtx[]); 57 58 extern int h8300_eightbit_constant_address_p (rtx); 59 extern int h8300_tiny_constant_address_p (rtx); 60 extern int byte_accesses_mergeable_p (rtx, rtx); 61 extern int same_cmp_preceding_p (rtx_insn *); 62 extern int same_cmp_following_p (rtx_insn *); 63 64 /* Used in builtins.c */ 65 extern rtx h8300_return_addr_rtx (int, rtx); 66 67 /* Classifies an h8sx shift operation. 68 69 H8SX_SHIFT_NONE 70 The shift cannot be done in a single instruction. 71 72 H8SX_SHIFT_UNARY 73 The shift is effectively a unary operation. The instruction will 74 allow any sort of destination operand and have a format similar 75 to neg and not. This is true of certain power-of-2 shifts. 76 77 H8SX_SHIFT_BINARY 78 The shift is a binary operation. The destination must be a 79 register and the source can be a register or a constant. */ 80 enum h8sx_shift_type { 81 H8SX_SHIFT_NONE, 82 H8SX_SHIFT_UNARY, 83 H8SX_SHIFT_BINARY 84 }; 85 86 extern enum h8sx_shift_type h8sx_classify_shift (machine_mode, enum rtx_code, rtx); 87 extern int h8300_ldm_stm_parallel (rtvec, int, int); 88 #endif /* RTX_CODE */ 89 90 #ifdef TREE_CODE 91 extern int h8300_funcvec_function_p (tree); 92 extern int h8300_eightbit_data_p (tree); 93 extern int h8300_tiny_data_p (tree); 94 #endif /* TREE_CODE */ 95 96 extern int h8300_can_use_return_insn_p (void); 97 extern void h8300_expand_prologue (void); 98 extern void h8300_expand_epilogue (void); 99 extern int h8300_current_function_interrupt_function_p (void); 100 extern int h8300_current_function_monitor_function_p (void); 101 extern int h8300_initial_elimination_offset (int, int); 102 extern int h8300_regs_ok_for_stm (int, rtx[]); 103 extern int h8300_hard_regno_rename_ok (unsigned int, unsigned int); 104 extern bool h8300_move_ok (rtx, rtx); 105 106 struct cpp_reader; 107 extern void h8300_pr_interrupt (struct cpp_reader *); 108 extern void h8300_pr_saveall (struct cpp_reader *); 109 extern enum reg_class h8300_reg_class_from_letter (int); 110 extern unsigned int h8300_insn_length_from_table (rtx_insn *, rtx *); 111 extern const char * output_h8sx_shift (rtx *, int, int); 112 extern bool h8300_operands_match_p (rtx *); 113 extern bool h8sx_mergeable_memrefs_p (rtx, rtx); 114 extern poly_int64 h8300_push_rounding (poly_int64); 115 116 #endif /* ! GCC_H8300_PROTOS_H */ 117