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/* Prototypes for exported functions of Andes NDS32 cpu for GNU compiler
Copyright (C) 2012-2013 Free Software Foundation, Inc.
Contributed by Andes Technology Corporation.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
GCC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* ------------------------------------------------------------------------ */
/* Defining Data Structures for Per-function Information. */
extern void nds32_init_expanders (void);
/* Register Usage. */
/* -- How Values Fit in Registers. */
extern int nds32_hard_regno_nregs (int, enum machine_mode);
extern int nds32_hard_regno_mode_ok (int, enum machine_mode);
/* Register Classes. */
extern enum reg_class nds32_regno_reg_class (int);
/* Stack Layout and Calling Conventions. */
/* -- Basic Stack Layout. */
extern rtx nds32_return_addr_rtx (int, rtx);
/* -- Eliminating Frame Pointer and Arg Pointer. */
extern HOST_WIDE_INT nds32_initial_elimination_offset (unsigned int,
unsigned int);
/* -- Passing Arguments in Registers. */
extern void nds32_init_cumulative_args (CUMULATIVE_ARGS *,
tree, rtx, tree, int);
/* -- Function Entry and Exit. */
extern void nds32_expand_prologue (void);
extern void nds32_expand_epilogue (void);
extern void nds32_expand_prologue_v3push (void);
extern void nds32_expand_epilogue_v3pop (void);
/* ------------------------------------------------------------------------ */
/* Auxiliary functions for auxiliary macros in nds32.h. */
extern bool nds32_ls_333_p (rtx, rtx, rtx, enum machine_mode);
/* Auxiliary functions for expanding rtl used in nds32-multiple.md. */
extern rtx nds32_expand_load_multiple (int, int, rtx, rtx);
extern rtx nds32_expand_store_multiple (int, int, rtx, rtx);
extern int nds32_expand_movmemqi (rtx, rtx, rtx, rtx);
/* Auxiliary functions for multiple load/store predicate checking. */
extern bool nds32_valid_multiple_load_store (rtx, bool);
/* Auxiliary functions for stack operation predicate checking. */
extern bool nds32_valid_stack_push_pop (rtx, bool);
/* Auxiliary functions for bit operation detection. */
extern int nds32_can_use_bclr_p (int);
extern int nds32_can_use_bset_p (int);
extern int nds32_can_use_btgl_p (int);
extern int nds32_can_use_bitci_p (int);
/* Auxiliary function for 'Computing the Length of an Insn'. */
extern int nds32_adjust_insn_length (rtx, int);
/* Auxiliary functions for FP_AS_GP detection. */
extern bool nds32_symbol_load_store_p (rtx);
extern int nds32_fp_as_gp_check_available (void);
/* Auxiliary functions for jump table generation. */
extern const char *nds32_output_casesi_pc_relative (rtx *);
extern const char *nds32_output_casesi (rtx *);
/* Auxiliary functions to identify 16 bit addresing mode. */
extern enum nds32_16bit_address_type nds32_mem_format (rtx);
/* Auxiliary functions to output assembly code. */
extern const char *nds32_output_16bit_store (rtx *, int);
extern const char *nds32_output_16bit_load (rtx *, int);
extern const char *nds32_output_32bit_store (rtx *, int);
extern const char *nds32_output_32bit_load (rtx *, int);
extern const char *nds32_output_32bit_load_s (rtx *, int);
/* Auxiliary functions to output stack push/pop instruction. */
extern const char *nds32_output_stack_push (void);
extern const char *nds32_output_stack_pop (void);
/* Auxiliary functions to decide output alignment or not. */
extern int nds32_target_alignment (rtx);
/* ------------------------------------------------------------------------ */
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