--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/optabs-libfuncs.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,77 @@
+/* Mapping from optabs to underlying library functions
+   Copyright (C) 2001-2017 Free Software Foundation, Inc.
+
+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_OPTABS_LIBFUNCS_H
+#define GCC_OPTABS_LIBFUNCS_H
+
+#include "insn-opinit.h"
+
+rtx convert_optab_libfunc (convert_optab, machine_mode, machine_mode);
+rtx optab_libfunc (optab, machine_mode);
+
+void gen_int_libfunc (optab, const char *, char, machine_mode);
+void gen_fp_libfunc (optab, const char *, char, machine_mode);
+void gen_fixed_libfunc (optab, const char *, char, machine_mode);
+void gen_signed_fixed_libfunc (optab, const char *, char, machine_mode);
+void gen_unsigned_fixed_libfunc (optab, const char *, char, machine_mode);
+void gen_int_fp_libfunc (optab, const char *, char, machine_mode);
+void gen_intv_fp_libfunc (optab, const char *, char, machine_mode);
+void gen_int_fp_fixed_libfunc (optab, const char *, char, machine_mode);
+void gen_int_fp_signed_fixed_libfunc (optab, const char *, char, machine_mode);
+void gen_int_fixed_libfunc (optab, const char *, char, machine_mode);
+void gen_int_signed_fixed_libfunc (optab, const char *, char, machine_mode);
+void gen_int_unsigned_fixed_libfunc (optab, const char *, char, machine_mode);
+
+void gen_interclass_conv_libfunc (convert_optab, const char *,
+				  machine_mode, machine_mode);
+void gen_int_to_fp_conv_libfunc (convert_optab, const char *,
+				 machine_mode, machine_mode);
+void gen_ufloat_conv_libfunc (convert_optab, const char *,
+			      machine_mode, machine_mode);
+void gen_int_to_fp_nondecimal_conv_libfunc (convert_optab, const char *,
+					    machine_mode, machine_mode);
+void gen_fp_to_int_conv_libfunc (convert_optab, const char *,
+				 machine_mode, machine_mode);
+void gen_intraclass_conv_libfunc (convert_optab, const char *,
+				  machine_mode, machine_mode);
+void gen_trunc_conv_libfunc (convert_optab, const char *,
+			     machine_mode, machine_mode);
+void gen_extend_conv_libfunc (convert_optab, const char *,
+			      machine_mode, machine_mode);
+void gen_fract_conv_libfunc (convert_optab, const char *,
+			     machine_mode, machine_mode);
+void gen_fractuns_conv_libfunc (convert_optab, const char *,
+				machine_mode, machine_mode);
+void gen_satfract_conv_libfunc (convert_optab, const char *,
+				machine_mode, machine_mode);
+void gen_satfractuns_conv_libfunc (convert_optab, const char *,
+				   machine_mode, machine_mode);
+
+tree build_libfunc_function (const char *);
+rtx init_one_libfunc (const char *);
+rtx set_user_assembler_libfunc (const char *, const char *);
+
+void set_optab_libfunc (optab, machine_mode, const char *);
+void set_conv_libfunc (convert_optab, machine_mode,
+		       machine_mode, const char *);
+
+void init_optabs (void);
+void init_sync_libfuncs (int max);
+
+#endif