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 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3, or (at your option) 11 any later version. 12 13 GCC is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along 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. */ 27 enum 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. */ 39 extern enum riscv_symbol_type riscv_classify_symbolic_expression (rtx); 40 extern bool riscv_symbolic_constant_p (rtx, enum riscv_symbol_type *); 41 extern int riscv_regno_mode_ok_for_base_p (int, machine_mode, bool); 42 extern int riscv_address_insns (rtx, machine_mode, bool); 43 extern int riscv_const_insns (rtx); 44 extern int riscv_split_const_insns (rtx); 45 extern int riscv_load_store_insns (rtx, rtx_insn *); 46 extern rtx riscv_emit_move (rtx, rtx); 47 extern bool riscv_split_symbol (rtx, rtx, machine_mode, rtx *, bool); 48 extern bool riscv_split_symbol_type (enum riscv_symbol_type); 49 extern rtx riscv_unspec_address (rtx, enum riscv_symbol_type); 50 extern void riscv_move_integer (rtx, rtx, HOST_WIDE_INT, machine_mode, bool); 51 extern bool riscv_legitimize_move (machine_mode, rtx, rtx); 52 extern rtx riscv_subword (rtx, bool); 53 extern bool riscv_split_64bit_move_p (rtx, rtx); 54 extern void riscv_split_doubleword_move (rtx, rtx); 55 extern const char *riscv_output_move (rtx, rtx); 56 extern const char *riscv_output_return (); 57 #ifdef RTX_CODE 58 extern void riscv_expand_int_scc (rtx, enum rtx_code, rtx, rtx); 59 extern void riscv_expand_float_scc (rtx, enum rtx_code, rtx, rtx); 60 extern void riscv_expand_conditional_branch (rtx, enum rtx_code, rtx, rtx); 61 extern void riscv_expand_conditional_move (rtx, rtx, rtx, rtx_code, rtx, rtx); 62 #endif 63 extern rtx riscv_legitimize_call_address (rtx); 64 extern void riscv_set_return_address (rtx, rtx); 65 extern bool riscv_expand_block_move (rtx, rtx, rtx); 66 extern rtx riscv_return_addr (int, rtx); 67 extern HOST_WIDE_INT riscv_initial_elimination_offset (int, int); 68 extern void riscv_expand_prologue (void); 69 extern void riscv_expand_epilogue (int); 70 extern bool riscv_epilogue_uses (unsigned int); 71 extern bool riscv_can_use_return_insn (void); 72 extern rtx riscv_function_value (const_tree, const_tree, enum machine_mode); 73 extern bool riscv_expand_block_move (rtx, rtx, rtx); 74 extern bool riscv_store_data_bypass_p (rtx_insn *, rtx_insn *); 75 extern rtx riscv_gen_gpr_save_insn (struct riscv_frame_info *); 76 extern bool riscv_gpr_save_operation_p (rtx); 77 78 /* Routines implemented in riscv-c.c. */ 79 void riscv_cpu_cpp_builtins (cpp_reader *); 80 81 /* Routines implemented in riscv-d.c */ 82 extern void riscv_d_target_versions (void); 83 84 /* Routines implemented in riscv-builtins.c. */ 85 extern void riscv_atomic_assign_expand_fenv (tree *, tree *, tree *); 86 extern rtx riscv_expand_builtin (tree, rtx, rtx, machine_mode, int); 87 extern tree riscv_builtin_decl (unsigned int, bool); 88 extern void riscv_init_builtins (void); 89 90 /* Routines implemented in riscv-common.c. */ 91 extern std::string riscv_arch_str (); 92 93 extern bool riscv_hard_regno_rename_ok (unsigned, unsigned); 94 95 #endif /* ! GCC_RISCV_PROTOS_H */ 96