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1 files changed, 341 insertions, 0 deletions

diff --git a/gcc/config/mips/mips-protos.h b/gcc/config/mips/mips-protos.h
new file mode 100644
index 000000000..611459884
--- /dev/null
+++ b/gcc/config/mips/mips-protos.h
@@ -0,0 +1,341 @@
+/* Prototypes of target machine for GNU compiler.  MIPS version.
+   Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+   1999, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
+   Free Software Foundation, Inc.
+   Contributed by A. Lichnewsky (lich@inria.inria.fr).
+   Changed by Michael Meissner	(meissner@osf.org).
+   64-bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and
+   Brendan Eich (brendan@microunity.com).
+
+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/>.  */
+
+#ifndef GCC_MIPS_PROTOS_H
+#define GCC_MIPS_PROTOS_H
+
+/* Describes how a symbol is used.
+
+   SYMBOL_CONTEXT_CALL
+       The symbol is used as the target of a call instruction.
+
+   SYMBOL_CONTEXT_LEA
+       The symbol is used in a load-address operation.
+
+   SYMBOL_CONTEXT_MEM
+       The symbol is used as the address in a MEM.  */
+enum mips_symbol_context {
+  SYMBOL_CONTEXT_CALL,
+  SYMBOL_CONTEXT_LEA,
+  SYMBOL_CONTEXT_MEM
+};
+
+/* Classifies a SYMBOL_REF, LABEL_REF or UNSPEC address.
+
+   SYMBOL_ABSOLUTE
+       The symbol's value will be calculated using absolute relocations,
+       such as %hi and %lo.
+
+   SYMBOL_GP_RELATIVE
+       The symbol's value will be calculated by adding a 16-bit offset
+       from $gp.
+
+   SYMBOL_PC_RELATIVE
+       The symbol's value will be calculated using a MIPS16 PC-relative
+       calculation.
+
+   SYMBOL_FORCE_TO_MEM
+       The symbol's value must be forced to memory and loaded from there.
+
+   SYMBOL_GOT_PAGE_OFST
+       The symbol's value will be calculated by loading an address
+       from the GOT and then applying a 16-bit offset.
+
+   SYMBOL_GOT_DISP
+       The symbol's value will be loaded directly from the GOT.
+
+   SYMBOL_GOTOFF_PAGE
+       An UNSPEC wrapper around a SYMBOL_GOT_PAGE_OFST.  It represents the
+       offset from _gp of the GOT entry.
+
+   SYMBOL_GOTOFF_DISP
+       An UNSPEC wrapper around a SYMBOL_GOT_DISP.  It represents the
+       the offset from _gp of the symbol's GOT entry.
+
+   SYMBOL_GOTOFF_CALL
+       Like SYMBOL_GOTOFF_DISP, but used when calling a global function.
+       The GOT entry is allowed to point to a stub rather than to the
+       function itself.
+
+   SYMBOL_GOTOFF_LOADGP
+       An UNSPEC wrapper around a function's address.  It represents the
+       offset of _gp from the start of the function.
+
+   SYMBOL_TLS
+       A thread-local symbol.
+
+   SYMBOL_TLSGD
+   SYMBOL_TLSLDM
+   SYMBOL_DTPREL
+   SYMBOL_GOTTPREL
+   SYMBOL_TPREL
+       UNSPEC wrappers around SYMBOL_TLS, corresponding to the
+       thread-local storage relocation operators.
+
+   SYMBOL_32_HIGH
+       For a 32-bit symbolic address X, this is the value of %hi(X).
+
+   SYMBOL_64_HIGH
+       For a 64-bit symbolic address X, this is the value of
+       (%highest(X) << 16) + %higher(X).
+
+   SYMBOL_64_MID
+       For a 64-bit symbolic address X, this is the value of
+       (%higher(X) << 16) + %hi(X).
+
+   SYMBOL_64_LOW
+       For a 64-bit symbolic address X, this is the value of
+       (%hi(X) << 16) + %lo(X).
+
+   SYMBOL_HALF
+       An UNSPEC wrapper around any kind of address.  It represents the
+       low 16 bits of that address.  */
+enum mips_symbol_type {
+  SYMBOL_ABSOLUTE,
+  SYMBOL_GP_RELATIVE,
+  SYMBOL_PC_RELATIVE,
+  SYMBOL_FORCE_TO_MEM,
+  SYMBOL_GOT_PAGE_OFST,
+  SYMBOL_GOT_DISP,
+  SYMBOL_GOTOFF_PAGE,
+  SYMBOL_GOTOFF_DISP,
+  SYMBOL_GOTOFF_CALL,
+  SYMBOL_GOTOFF_LOADGP,
+  SYMBOL_TLS,
+  SYMBOL_TLSGD,
+  SYMBOL_TLSLDM,
+  SYMBOL_DTPREL,
+  SYMBOL_GOTTPREL,
+  SYMBOL_TPREL,
+  SYMBOL_32_HIGH,
+  SYMBOL_64_HIGH,
+  SYMBOL_64_MID,
+  SYMBOL_64_LOW,
+  SYMBOL_HALF
+};
+#define NUM_SYMBOL_TYPES (SYMBOL_HALF + 1)
+
+/* Identifiers a style of $gp initialization sequence.
+
+   LOADGP_NONE
+	No initialization sequence is needed.
+
+   LOADGP_OLDABI
+	The o32 and o64 PIC sequence (the kind traditionally generated
+	by .cpload).
+
+   LOADGP_NEWABI
+	The n32 and n64 PIC sequence (the kind traditionally generated
+	by .cpsetup).
+
+   LOADGP_ABSOLUTE
+	The GNU absolute sequence, as generated by loadgp_absolute.
+
+   LOADGP_RTP
+	The VxWorks RTP PIC sequence, as generated by loadgp_rtp.  */
+enum mips_loadgp_style {
+  LOADGP_NONE,
+  LOADGP_OLDABI,
+  LOADGP_NEWABI,
+  LOADGP_ABSOLUTE,
+  LOADGP_RTP
+};
+
+struct mips16e_save_restore_info;
+
+/* Classifies a type of call.
+
+   MIPS_CALL_NORMAL
+	A normal call or call_value pattern.
+
+   MIPS_CALL_SIBCALL
+	A sibcall or sibcall_value pattern.
+
+   MIPS_CALL_EPILOGUE
+	A call inserted in the epilogue.  */
+enum mips_call_type {
+  MIPS_CALL_NORMAL,
+  MIPS_CALL_SIBCALL,
+  MIPS_CALL_EPILOGUE
+};
+
+extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_context,
+				      enum mips_symbol_type *);
+extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, bool);
+extern bool mips_stack_address_p (rtx, enum machine_mode);
+extern int mips_address_insns (rtx, enum machine_mode, bool);
+extern int mips_const_insns (rtx);
+extern int mips_split_const_insns (rtx);
+extern int mips_load_store_insns (rtx, rtx);
+extern int mips_idiv_insns (void);
+extern rtx mips_emit_move (rtx, rtx);
+extern rtx mips_pic_base_register (rtx);
+extern rtx mips_got_load (rtx, rtx, enum mips_symbol_type);
+extern bool mips_split_symbol (rtx, rtx, enum machine_mode, rtx *);
+extern rtx mips_unspec_address (rtx, enum mips_symbol_type);
+extern void mips_move_integer (rtx, rtx, unsigned HOST_WIDE_INT);
+extern bool mips_legitimize_move (enum machine_mode, rtx, rtx);
+
+extern int m16_uimm3_b (rtx, enum machine_mode);
+extern int m16_simm4_1 (rtx, enum machine_mode);
+extern int m16_nsimm4_1 (rtx, enum machine_mode);
+extern int m16_simm5_1 (rtx, enum machine_mode);
+extern int m16_nsimm5_1 (rtx, enum machine_mode);
+extern int m16_uimm5_4 (rtx, enum machine_mode);
+extern int m16_nuimm5_4 (rtx, enum machine_mode);
+extern int m16_simm8_1 (rtx, enum machine_mode);
+extern int m16_nsimm8_1 (rtx, enum machine_mode);
+extern int m16_uimm8_1 (rtx, enum machine_mode);
+extern int m16_nuimm8_1 (rtx, enum machine_mode);
+extern int m16_uimm8_m1_1 (rtx, enum machine_mode);
+extern int m16_uimm8_4 (rtx, enum machine_mode);
+extern int m16_nuimm8_4 (rtx, enum machine_mode);
+extern int m16_simm8_8 (rtx, enum machine_mode);
+extern int m16_nsimm8_8 (rtx, enum machine_mode);
+
+extern rtx mips_subword (rtx, bool);
+extern bool mips_split_64bit_move_p (rtx, rtx);
+extern void mips_split_doubleword_move (rtx, rtx);
+extern const char *mips_output_move (rtx, rtx);
+extern bool mips_cfun_has_cprestore_slot_p (void);
+extern bool mips_cprestore_address_p (rtx, bool);
+extern void mips_save_gp_to_cprestore_slot (rtx, rtx, rtx, rtx);
+extern void mips_restore_gp_from_cprestore_slot (rtx);
+#ifdef RTX_CODE
+extern void mips_expand_scc (rtx *);
+extern void mips_expand_conditional_branch (rtx *);
+extern void mips_expand_vcondv2sf (rtx, rtx, rtx, enum rtx_code, rtx, rtx);
+extern void mips_expand_conditional_move (rtx *);
+extern void mips_expand_conditional_trap (rtx);
+#endif
+extern bool mips_use_pic_fn_addr_reg_p (const_rtx);
+extern rtx mips_expand_call (enum mips_call_type, rtx, rtx, rtx, rtx, bool);
+extern void mips_split_call (rtx, rtx);
+extern bool mips_get_pic_call_symbol (rtx *, int);
+extern void mips_expand_fcc_reload (rtx, rtx, rtx);
+extern void mips_set_return_address (rtx, rtx);
+extern bool mips_expand_block_move (rtx, rtx, rtx);
+extern void mips_expand_synci_loop (rtx, rtx);
+
+extern void mips_init_cumulative_args (CUMULATIVE_ARGS *, tree);
+extern bool mips_pad_arg_upward (enum machine_mode, const_tree);
+extern bool mips_pad_reg_upward (enum machine_mode, tree);
+
+extern bool mips_expand_ext_as_unaligned_load (rtx, rtx, HOST_WIDE_INT,
+					       HOST_WIDE_INT);
+extern bool mips_expand_ins_as_unaligned_store (rtx, rtx, HOST_WIDE_INT,
+						HOST_WIDE_INT);
+extern bool mips_mem_fits_mode_p (enum machine_mode mode, rtx x);
+extern void mips_order_regs_for_local_alloc (void);
+extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT);
+
+extern void mips_push_asm_switch (struct mips_asm_switch *);
+extern void mips_pop_asm_switch (struct mips_asm_switch *);
+extern void mips_output_external (FILE *, tree, const char *);
+extern void mips_output_ascii (FILE *, const char *, size_t);
+extern void mips_output_aligned_decl_common (FILE *, tree, const char *,
+					     unsigned HOST_WIDE_INT,
+					     unsigned int);
+extern void mips_declare_common_object (FILE *, const char *,
+					const char *, unsigned HOST_WIDE_INT,
+					unsigned int, bool);
+extern void mips_declare_object (FILE *, const char *, const char *,
+				 const char *, ...) ATTRIBUTE_PRINTF_4;
+extern void mips_declare_object_name (FILE *, const char *, tree);
+extern void mips_finish_declare_object (FILE *, tree, int, int);
+
+extern bool mips_small_data_pattern_p (rtx);
+extern rtx mips_rewrite_small_data (rtx);
+extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
+extern rtx mips_return_addr (int, rtx);
+extern bool mips_must_initialize_gp_p (void);
+extern enum mips_loadgp_style mips_current_loadgp_style (void);
+extern void mips_emit_save_slot_move (rtx, rtx, rtx);
+extern void mips_expand_prologue (void);
+extern void mips_expand_before_return (void);
+extern void mips_expand_epilogue (bool);
+extern bool mips_can_use_return_insn (void);
+extern rtx mips_function_value (const_tree, const_tree, enum machine_mode);
+
+extern bool mips_cannot_change_mode_class (enum machine_mode,
+					   enum machine_mode, enum reg_class);
+extern bool mips_dangerous_for_la25_p (rtx);
+extern bool mips_modes_tieable_p (enum machine_mode, enum machine_mode);
+extern enum reg_class mips_secondary_reload_class (enum reg_class,
+						   enum machine_mode,
+						   rtx, bool);
+extern int mips_class_max_nregs (enum reg_class, enum machine_mode);
+
+extern int mips_adjust_insn_length (rtx, int);
+extern void mips_output_load_label (rtx);
+extern const char *mips_output_conditional_branch (rtx, rtx *, const char *,
+						   const char *);
+extern const char *mips_output_order_conditional_branch (rtx, rtx *, bool);
+extern const char *mips_output_sync (void);
+extern const char *mips_output_sync_loop (rtx, rtx *);
+extern unsigned int mips_sync_loop_insns (rtx, rtx *);
+extern const char *mips_output_division (const char *, rtx *);
+extern unsigned int mips_hard_regno_nregs (int, enum machine_mode);
+extern bool mips_linked_madd_p (rtx, rtx);
+extern bool mips_store_data_bypass_p (rtx, rtx);
+extern rtx mips_prefetch_cookie (rtx, rtx);
+
+extern void irix_asm_output_align (FILE *, unsigned);
+extern const char *current_section_name (void);
+extern unsigned int current_section_flags (void);
+extern bool mips_use_ins_ext_p (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
+
+extern const char *mips16e_output_save_restore (rtx, HOST_WIDE_INT);
+extern bool mips16e_save_restore_pattern_p (rtx, HOST_WIDE_INT,
+					    struct mips16e_save_restore_info *);
+
+extern bool mask_low_and_shift_p (enum machine_mode, rtx, rtx, int);
+extern int mask_low_and_shift_len (enum machine_mode, rtx, rtx);
+extern bool and_operands_ok (enum machine_mode, rtx, rtx);
+
+union mips_gen_fn_ptrs
+{
+  rtx (*fn_6) (rtx, rtx, rtx, rtx, rtx, rtx);
+  rtx (*fn_5) (rtx, rtx, rtx, rtx, rtx);
+  rtx (*fn_4) (rtx, rtx, rtx, rtx);
+};
+
+extern void mips_expand_atomic_qihi (union mips_gen_fn_ptrs,
+				     rtx, rtx, rtx, rtx);
+
+extern void mips_expand_vector_init (rtx, rtx);
+
+extern bool mips_eh_uses (unsigned int);
+extern bool mips_epilogue_uses (unsigned int);
+extern void mips_final_prescan_insn (rtx, rtx *, int);
+extern int mips_trampoline_code_size (void);
+extern void mips_function_profiler (FILE *);
+
+typedef rtx (*mulsidi3_gen_fn) (rtx, rtx, rtx);
+#ifdef RTX_CODE
+extern mulsidi3_gen_fn mips_mulsidi3_gen_fn (enum rtx_code);
+#endif
+
+#endif /* ! GCC_MIPS_PROTOS_H */