1/* Definition of RISC-V target for GNU compiler. 2 Copyright (C) 2011-2020 Free Software Foundation, Inc. 3 Contributed by Andrew Waterman (andrew@sifive.com). 4 Based on MIPS target for GNU compiler. 5 6This file is part of GCC. 7 8GCC is free software; you can redistribute it and/or modify 9it under the terms of the GNU General Public License as published by 10the Free Software Foundation; either version 3, or (at your option) 11any later version. 12 13GCC is distributed in the hope that it will be useful, 14but WITHOUT ANY WARRANTY; without even the implied warranty of 15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16GNU General Public License for more details. 17 18You should have received a copy of the GNU General Public License 19along with GCC; see the file COPYING3. If not see 20<http://www.gnu.org/licenses/>. */ 21 22#ifndef GCC_RISCV_PROTOS_H 23#define GCC_RISCV_PROTOS_H 24 25/* Symbol types we understand. The order of this list must match that of 26 the unspec enum in riscv.md, subsequent to UNSPEC_ADDRESS_FIRST. */ 27enum riscv_symbol_type { 28 SYMBOL_ABSOLUTE, 29 SYMBOL_PCREL, 30 SYMBOL_GOT_DISP, 31 SYMBOL_TLS, 32 SYMBOL_TLS_LE, 33 SYMBOL_TLS_IE, 34 SYMBOL_TLS_GD 35}; 36#define NUM_SYMBOL_TYPES (SYMBOL_TLS_GD + 1) 37 38/* Routines implemented in riscv.c. */ 39extern enum riscv_symbol_type riscv_classify_symbolic_expression (rtx); 40extern bool riscv_symbolic_constant_p (rtx, enum riscv_symbol_type *); 41extern int riscv_regno_mode_ok_for_base_p (int, machine_mode, bool); 42extern int riscv_address_insns (rtx, machine_mode, bool); 43extern int riscv_const_insns (rtx); 44extern int riscv_split_const_insns (rtx); 45extern int riscv_load_store_insns (rtx, rtx_insn *); 46extern rtx riscv_emit_move (rtx, rtx); 47extern bool riscv_split_symbol (rtx, rtx, machine_mode, rtx *, bool); 48extern bool riscv_split_symbol_type (enum riscv_symbol_type); 49extern rtx riscv_unspec_address (rtx, enum riscv_symbol_type); 50extern void riscv_move_integer (rtx, rtx, HOST_WIDE_INT, machine_mode, bool); 51extern bool riscv_legitimize_move (machine_mode, rtx, rtx); 52extern rtx riscv_subword (rtx, bool); 53extern bool riscv_split_64bit_move_p (rtx, rtx); 54extern void riscv_split_doubleword_move (rtx, rtx); 55extern const char *riscv_output_move (rtx, rtx); 56extern const char *riscv_output_return (); 57#ifdef RTX_CODE 58extern void riscv_expand_int_scc (rtx, enum rtx_code, rtx, rtx); 59extern void riscv_expand_float_scc (rtx, enum rtx_code, rtx, rtx); 60extern void riscv_expand_conditional_branch (rtx, enum rtx_code, rtx, rtx); 61extern void riscv_expand_conditional_move (rtx, rtx, rtx, rtx_code, rtx, rtx); 62#endif 63extern rtx riscv_legitimize_call_address (rtx); 64extern void riscv_set_return_address (rtx, rtx); 65extern bool riscv_expand_block_move (rtx, rtx, rtx); 66extern rtx riscv_return_addr (int, rtx); 67extern HOST_WIDE_INT riscv_initial_elimination_offset (int, int); 68extern void riscv_expand_prologue (void); 69extern void riscv_expand_epilogue (int); 70extern bool riscv_epilogue_uses (unsigned int); 71extern bool riscv_can_use_return_insn (void); 72extern rtx riscv_function_value (const_tree, const_tree, enum machine_mode); 73extern bool riscv_expand_block_move (rtx, rtx, rtx); 74extern bool riscv_store_data_bypass_p (rtx_insn *, rtx_insn *); 75extern rtx riscv_gen_gpr_save_insn (struct riscv_frame_info *); 76extern bool riscv_gpr_save_operation_p (rtx); 77 78/* Routines implemented in riscv-c.c. */ 79void riscv_cpu_cpp_builtins (cpp_reader *); 80 81/* Routines implemented in riscv-d.c */ 82extern void riscv_d_target_versions (void); 83 84/* Routines implemented in riscv-builtins.c. */ 85extern void riscv_atomic_assign_expand_fenv (tree *, tree *, tree *); 86extern rtx riscv_expand_builtin (tree, rtx, rtx, machine_mode, int); 87extern tree riscv_builtin_decl (unsigned int, bool); 88extern void riscv_init_builtins (void); 89 90/* Routines implemented in riscv-common.c. */ 91extern std::string riscv_arch_str (); 92 93extern bool riscv_hard_regno_rename_ok (unsigned, unsigned); 94 95#endif /* ! GCC_RISCV_PROTOS_H */ 96