* config/xtensa/elf.h: New file.

        * config/xtensa/lib1funcs.asm: New file.
        * config/xtensa/lib2funcs.S: New file.
        * config/xtensa/linux.h: New file.
        * config/xtensa/t-xtensa: New file.
        * config/xtensa/xtensa-config.h: New file.
        * config/xtensa/xtensa-protos.h: New file.
        * config/xtensa/xtensa.c: New file.
        * config/xtensa/xtensa.h: New file.
        * config/xtensa/xtensa.md: New file.
        * config.gcc (xtensa-*-elf*): New target.
        (xtensa-*-linux*): New target.
        * cse.c (canon_hash): Compare rtx pointers instead of register
        numbers.  This is required for the Xtensa port.
        * integrate.c (copy_insn_list): Handle case where the static
        chain is in memory and the memory address has to be copied to
        a register.
        * doc/invoke.texi (Option Summary): Add Xtensa options.
        (Xtensa Options): New node.
        * doc/md.texi (Machine Constraints): Add Xtensa machine constraints.
        * gcc.c-torture/compile/20001226-1.x: xfail for Xtensa.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49155 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 116 insertions, 0 deletions

diff --git a/gcc/config/xtensa/xtensa-protos.h b/gcc/config/xtensa/xtensa-protos.h
new file mode 100644
index 00000000000..bb18e3ae84a
--- /dev/null
+++ b/gcc/config/xtensa/xtensa-protos.h
@@ -0,0 +1,116 @@
+/* Prototypes of target machine for GNU compiler for Xtensa.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+   Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
+
+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 2, 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 COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
+
+#ifndef __XTENSA_PROTOS_H__
+#define __XTENSA_PROTOS_H__
+
+/* Functions to test whether an immediate fits in a given field. */
+extern int xtensa_simm7 PARAMS ((int));
+extern int xtensa_simm8 PARAMS ((int));
+extern int xtensa_simm8x256 PARAMS ((int));
+extern int xtensa_simm12b PARAMS ((int));
+extern int xtensa_uimm8 PARAMS ((int));
+extern int xtensa_uimm8x2 PARAMS ((int));
+extern int xtensa_uimm8x4 PARAMS ((int));
+extern int xtensa_ai4const PARAMS ((int));
+extern int xtensa_lsi4x4 PARAMS ((int));
+extern int xtensa_b4const PARAMS ((int));
+extern int xtensa_b4constu PARAMS ((int));
+extern int xtensa_tp7 PARAMS ((int));
+
+/* Functions within xtensa.c that we reference.  */
+#ifdef RTX_CODE
+extern int xt_true_regnum PARAMS ((rtx));
+extern int add_operand PARAMS ((rtx, enum machine_mode));
+extern int arith_operand PARAMS ((rtx, enum machine_mode));
+extern int nonimmed_operand PARAMS ((rtx, enum machine_mode));
+extern int mem_operand PARAMS ((rtx, enum machine_mode));
+extern int non_acc_reg_operand PARAMS ((rtx, enum machine_mode));
+extern int mask_operand PARAMS ((rtx, enum machine_mode));
+extern int extui_fldsz_operand PARAMS ((rtx, enum machine_mode));
+extern int sext_operand PARAMS ((rtx, enum machine_mode));
+extern int sext_fldsz_operand PARAMS ((rtx, enum machine_mode));
+extern int lsbitnum_operand PARAMS ((rtx, enum machine_mode));
+extern int branch_operand PARAMS ((rtx, enum machine_mode));
+extern int ubranch_operand PARAMS ((rtx, enum machine_mode));
+extern int call_insn_operand PARAMS ((rtx, enum machine_mode));
+extern int move_operand PARAMS ((rtx, enum machine_mode));
+extern int smalloffset_mem_p PARAMS ((rtx));
+extern int smalloffset_double_mem_p PARAMS ((rtx));
+extern int constantpool_address_p PARAMS ((rtx));
+extern int constantpool_mem_p PARAMS ((rtx));
+extern int non_const_move_operand PARAMS ((rtx, enum machine_mode));
+extern int const_float_1_operand PARAMS ((rtx, enum machine_mode));
+extern int fpmem_offset_operand PARAMS ((rtx, enum machine_mode));
+extern void xtensa_extend_reg PARAMS ((rtx, rtx));
+extern void xtensa_load_constant PARAMS ((rtx, rtx));
+extern int branch_operator PARAMS ((rtx, enum machine_mode));
+extern int ubranch_operator PARAMS ((rtx, enum machine_mode));
+extern int boolean_operator PARAMS ((rtx, enum machine_mode));
+extern void xtensa_expand_conditional_branch PARAMS ((rtx *, enum rtx_code));
+extern int xtensa_expand_conditional_move PARAMS ((rtx *, int));
+extern int xtensa_expand_scc PARAMS ((rtx *));
+extern int xtensa_expand_block_move PARAMS ((rtx *));
+extern int xtensa_emit_move_sequence PARAMS ((rtx *, enum machine_mode));
+extern void xtensa_emit_block_move PARAMS ((rtx *, rtx *, int));
+extern void xtensa_expand_nonlocal_goto PARAMS ((rtx *));
+extern void xtensa_emit_loop_end PARAMS ((rtx, rtx *));
+extern char * xtensa_emit_call PARAMS ((int, rtx *));
+
+#ifdef TREE_CODE
+extern void init_cumulative_args PARAMS ((CUMULATIVE_ARGS *, tree, rtx));
+extern void xtensa_va_start PARAMS ((int, tree, rtx));
+extern rtx xtensa_va_arg PARAMS ((tree, tree));
+#endif /* TREE_CODE */
+
+extern void print_operand PARAMS ((FILE *, rtx, int));
+extern void print_operand_address PARAMS ((FILE *, rtx));
+extern void xtensa_output_literal
+  PARAMS ((FILE *, rtx, enum machine_mode, int labelno));
+extern void xtensa_reorg PARAMS ((rtx));
+extern rtx xtensa_builtin_saveregs PARAMS ((void));
+extern enum reg_class xtensa_secondary_reload_class
+  PARAMS ((enum reg_class, enum machine_mode, rtx, int));
+extern int a7_overlap_mentioned_p PARAMS ((rtx x));
+#endif /* RTX_CODE */
+
+#ifdef TREE_CODE
+extern void function_arg_advance
+  PARAMS ((CUMULATIVE_ARGS *, enum machine_mode, tree));
+extern struct rtx_def * function_arg
+  PARAMS ((CUMULATIVE_ARGS *, enum machine_mode, tree, int));
+extern tree xtensa_build_va_list PARAMS ((void));
+#endif /* TREE_CODE */
+
+extern int xtensa_mask_immediate PARAMS ((int));
+extern int xtensa_mem_offset PARAMS ((unsigned, enum machine_mode));
+extern void xtensa_setup_frame_addresses PARAMS ((void));
+extern int xtensa_dbx_register_number PARAMS ((int));
+extern void override_options PARAMS ((void));
+extern void xtensa_declare_object
+  PARAMS ((FILE *, char *, char *, char *, int));
+extern long compute_frame_size PARAMS ((int));
+extern int xtensa_frame_pointer_required PARAMS ((void));
+extern void xtensa_function_prologue PARAMS ((FILE *, int));
+extern void xtensa_function_epilogue PARAMS ((FILE *, int));
+extern void order_regs_for_local_alloc PARAMS ((void));
+
+#endif /* !__XTENSA_PROTOS_H__ */