gcc/config/nds32/nds32-protos.h

   1 /* Prototypes for exported functions of Andes NDS32 cpu for GNU compiler
   2    Copyright (C) 2012-2013 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 Usage.  */
  30
  31 /* -- How Values Fit in Registers.  */
  32
  33 extern int nds32_hard_regno_nregs (int, enum machine_mode);
  34 extern int nds32_hard_regno_mode_ok (int, enum machine_mode);
  35
  36 \f
  37 /* Register Classes.  */
  38
  39 extern enum reg_class nds32_regno_reg_class (int);
  40
  41 \f
  42 /* Stack Layout and Calling Conventions.  */
  43
  44 /* -- Basic Stack Layout.  */
  45
  46 extern rtx nds32_return_addr_rtx (int, rtx);
  47
  48 /* -- Eliminating Frame Pointer and Arg Pointer.  */
  49
  50 extern HOST_WIDE_INT nds32_initial_elimination_offset (unsigned int,
  51                                                        unsigned int);
  52
  53 /* -- Passing Arguments in Registers.  */
  54
  55 extern void nds32_init_cumulative_args (CUMULATIVE_ARGS *,
  56                                         tree, rtx, tree, int);
  57
  58 /* -- Function Entry and Exit.  */
  59
  60 extern void nds32_expand_prologue (void);
  61 extern void nds32_expand_epilogue (void);
  62 extern void nds32_expand_prologue_v3push (void);
  63 extern void nds32_expand_epilogue_v3pop (void);
  64
  65 /* ------------------------------------------------------------------------ */
  66
  67 /* Auxiliary functions for auxiliary macros in nds32.h.  */
  68
  69 extern bool nds32_ls_333_p (rtx, rtx, rtx, enum machine_mode);
  70
  71 /* Auxiliary functions for expanding rtl used in nds32-multiple.md.  */
  72
  73 extern rtx nds32_expand_load_multiple (int, int, rtx, rtx);
  74 extern rtx nds32_expand_store_multiple (int, int, rtx, rtx);
  75 extern int nds32_expand_movmemqi (rtx, rtx, rtx, rtx);
  76
  77 /* Auxiliary functions for multiple load/store predicate checking.  */
  78
  79 extern bool nds32_valid_multiple_load_store (rtx, bool);
  80
  81 /* Auxiliary functions for stack operation predicate checking.  */
  82
  83 extern bool nds32_valid_stack_push_pop (rtx, bool);
  84
  85 /* Auxiliary functions for bit operation detection.  */
  86
  87 extern int nds32_can_use_bclr_p (int);
  88 extern int nds32_can_use_bset_p (int);
  89 extern int nds32_can_use_btgl_p (int);
  90
  91 extern int nds32_can_use_bitci_p (int);
  92
  93 /* Auxiliary function for 'Computing the Length of an Insn'.  */
  94
  95 extern int nds32_adjust_insn_length (rtx, int);
  96
  97 /* Auxiliary functions for FP_AS_GP detection.  */
  98
  99 extern bool nds32_symbol_load_store_p (rtx);
 100 extern int nds32_fp_as_gp_check_available (void);
 101
 102 /* Auxiliary functions for jump table generation.  */
 103
 104 extern const char *nds32_output_casesi_pc_relative (rtx *);
 105 extern const char *nds32_output_casesi (rtx *);
 106
 107 /* Auxiliary functions to identify 16 bit addresing mode.  */
 108
 109 extern enum nds32_16bit_address_type nds32_mem_format (rtx);
 110
 111 /* Auxiliary functions to output assembly code.  */
 112
 113 extern const char *nds32_output_16bit_store (rtx *, int);
 114 extern const char *nds32_output_16bit_load (rtx *, int);
 115 extern const char *nds32_output_32bit_store (rtx *, int);
 116 extern const char *nds32_output_32bit_load (rtx *, int);
 117 extern const char *nds32_output_32bit_load_s (rtx *, int);
 118
 119 /* Auxiliary functions to output stack push/pop instruction.  */
 120
 121 extern const char *nds32_output_stack_push (void);
 122 extern const char *nds32_output_stack_pop (void);
 123
 124 /* Auxiliary functions to decide output alignment or not.  */
 125
 126 extern int nds32_target_alignment (rtx);
 127
 128 /* ------------------------------------------------------------------------ */