gcc/config/nds32/nds32-protos.h

   1 /* Prototypes for exported functions of Andes NDS32 cpu for GNU compiler
   2    Copyright (C) 2012-2018 Free Software Foundation, Inc.
   3    Contributed by Andes Technology Corporation.
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published
   9    by the Free Software Foundation; either version 3, or (at your
  10    option) any later version.
  11
  12    GCC is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GCC; see the file COPYING3.  If not see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21
  22 /* ------------------------------------------------------------------------ */
  23 \f
  24 /* Defining Data Structures for Per-function Information.  */
  25
  26 extern void nds32_init_expanders (void);
  27
  28 \f
  29 /* Register Classes.  */
  30
  31 extern enum reg_class nds32_regno_reg_class (int);
  32
  33 \f
  34 /* Stack Layout and Calling Conventions.  */
  35
  36 /* -- Basic Stack Layout.  */
  37
  38 extern rtx nds32_return_addr_rtx (int, rtx);
  39
  40 /* -- Eliminating Frame Pointer and Arg Pointer.  */
  41
  42 extern HOST_WIDE_INT nds32_initial_elimination_offset (unsigned int,
  43                                                        unsigned int);
  44
  45 /* -- Passing Arguments in Registers.  */
  46
  47 extern void nds32_init_cumulative_args (CUMULATIVE_ARGS *,
  48                                         tree, rtx, tree, int);
  49
  50 /* -- Function Entry and Exit.  */
  51
  52 extern void nds32_expand_prologue (void);
  53 extern void nds32_expand_epilogue (bool);
  54 extern void nds32_expand_prologue_v3push (void);
  55 extern void nds32_expand_epilogue_v3pop (bool);
  56
  57 /* ------------------------------------------------------------------------ */
  58
  59 /* Auxiliary functions for auxiliary macros in nds32.h.  */
  60
  61 extern bool nds32_ls_333_p (rtx, rtx, rtx, machine_mode);
  62
  63 /* Auxiliary functions for lwm/smw.  */
  64
  65 extern bool nds32_valid_smw_lwm_base_p (rtx);
  66
  67 /* Auxiliary functions for expanding rtl used in nds32-multiple.md.  */
  68
  69 extern rtx nds32_expand_load_multiple (int, int, rtx, rtx, bool, rtx *);
  70 extern rtx nds32_expand_store_multiple (int, int, rtx, rtx, bool, rtx *);
  71 extern int nds32_expand_movmemqi (rtx, rtx, rtx, rtx);
  72
  73 /* Auxiliary functions for expand unalign load instruction.  */
  74
  75 extern void nds32_expand_unaligned_load (rtx *, enum machine_mode);
  76
  77 /* Auxiliary functions for expand unalign store instruction.  */
  78
  79 extern void nds32_expand_unaligned_store (rtx *, enum machine_mode);
  80
  81 /* Auxiliary functions for multiple load/store predicate checking.  */
  82
  83 extern bool nds32_valid_multiple_load_store_p (rtx, bool, bool);
  84
  85 /* Auxiliary functions for stack operation predicate checking.  */
  86
  87 extern bool nds32_valid_stack_push_pop_p (rtx, bool);
  88
  89 /* Auxiliary functions for bit operation detection.  */
  90
  91 extern int nds32_can_use_bclr_p (int);
  92 extern int nds32_can_use_bset_p (int);
  93 extern int nds32_can_use_btgl_p (int);
  94
  95 extern int nds32_can_use_bitci_p (int);
  96
  97 /* Auxiliary function for 'Computing the Length of an Insn'.  */
  98
  99 extern int nds32_adjust_insn_length (rtx_insn *, int);
 100
 101 /* Auxiliary functions for FP_AS_GP detection.  */
 102
 103 extern int nds32_fp_as_gp_check_available (void);
 104
 105 /* Auxiliary functions for jump table generation.  */
 106
 107 extern const char *nds32_output_casesi_pc_relative (rtx *);
 108 extern const char *nds32_output_casesi (rtx *);
 109
 110 /* Auxiliary functions to identify 16 bit addresing mode.  */
 111
 112 extern enum nds32_16bit_address_type nds32_mem_format (rtx);
 113
 114 /* Auxiliary functions to output assembly code.  */
 115
 116 extern const char *nds32_output_16bit_store (rtx *, int);
 117 extern const char *nds32_output_16bit_load (rtx *, int);
 118 extern const char *nds32_output_32bit_store (rtx *, int);
 119 extern const char *nds32_output_32bit_load (rtx *, int);
 120 extern const char *nds32_output_32bit_load_s (rtx *, int);
 121 extern const char *nds32_output_smw_single_word (rtx *);
 122 extern const char *nds32_output_lmw_single_word (rtx *);
 123
 124 /* Auxiliary functions to output stack push/pop instruction.  */
 125
 126 extern const char *nds32_output_stack_push (rtx);
 127 extern const char *nds32_output_stack_pop (rtx);
 128
 129 /* Auxiliary functions to check using return with null epilogue.  */
 130
 131 extern int nds32_can_use_return_insn (void);
 132
 133 /* Auxiliary functions to decide output alignment or not.  */
 134
 135 extern int nds32_target_alignment (rtx_insn *);
 136
 137 /* Auxiliary functions to expand builtin functions.  */
 138
 139 extern void nds32_init_builtins_impl (void);
 140 extern rtx nds32_expand_builtin_impl (tree, rtx, rtx,
 141                                       machine_mode, int);
 142 extern tree nds32_builtin_decl_impl (unsigned, bool);
 143
 144 /* Auxiliary functions for ISR implementation.  */
 145
 146 extern void nds32_check_isr_attrs_conflict (tree, tree);
 147 extern void nds32_construct_isr_vectors_information (tree, const char *);
 148 extern void nds32_asm_file_start_for_isr (void);
 149 extern void nds32_asm_file_end_for_isr (void);
 150 extern bool nds32_isr_function_p (tree);
 151
 152 /* Auxiliary functions for cost calculation.  */
 153
 154 extern bool nds32_rtx_costs_impl (rtx, machine_mode, int, int, int *, bool);
 155 extern int nds32_address_cost_impl (rtx, machine_mode, addr_space_t, bool);
 156
 157 /* ------------------------------------------------------------------------ */