Split part of functionality from lto.c to lto-common.c.

2019-05-06  Martin Liska  <mliska@suse.cz>
	    Hrishikesh Kulkarni  <hrishikeshparag@gmail.com>

	* Make-lang.in: Add lto-common.o.
	* config-lang.in: Likewise for gtfiles.
	* lto-common.c: New file.
	* lto-common.h: New file.
	* lto-lang.c: Include lto-common.h.
	* lto.c: Move most of the functionality
	into lto-common.c file.

Co-Authored-By: Hrishikesh Kulkarni <hrishikeshparag@gmail.com>

From-SVN: r270896

gcc/lto/ChangeLog

+2019-05-06  Martin Liska  <mliska@suse.cz>
+	    Hrishikesh Kulkarni  <hrishikeshparag@gmail.com>
+
+	* Make-lang.in: Add lto-common.o.
+	* config-lang.in: Likewise for gtfiles.
+	* lto-common.c: New file.
+	* lto-common.h: New file.
+	* lto-lang.c: Include lto-common.h.
+	* lto.c: Move most of the functionality
+	into lto-common.c file.
+
 2019-04-12  Jan Hubicka  <hubicka@ucw.cz>
 
 	* lto.c (do_stream_out): rename to ...

gcc/lto/Make-lang.in

@@ -22,7 +22,7 @@
 # The name of the LTO compiler.
 LTO_EXE = lto1$(exeext)
 # The LTO-specific object files inclued in $(LTO_EXE).
-LTO_OBJS = lto/lto-lang.o lto/lto.o lto/lto-object.o attribs.o lto/lto-partition.o lto/lto-symtab.o
+LTO_OBJS = lto/lto-lang.o lto/lto.o lto/lto-object.o attribs.o lto/lto-partition.o lto/lto-symtab.o lto/lto-common.o
 lto_OBJS = $(LTO_OBJS)
 
 # this is only useful in a LTO bootstrap, but this does not work right

gcc/lto/config-lang.in

@@ -20,7 +20,7 @@
 language="lto"
 compilers="lto1\$(exeext)"
 
-gtfiles="\$(srcdir)/lto/lto-tree.h \$(srcdir)/lto/lto-lang.c \$(srcdir)/lto/lto.c \$(srcdir)/lto/lto.h"
+gtfiles="\$(srcdir)/lto/lto-tree.h \$(srcdir)/lto/lto-lang.c \$(srcdir)/lto/lto.c \$(srcdir)/lto/lto.h \$(srcdir)/lto/lto-common.h \$(srcdir)/lto/lto-common.c"
 
 # LTO is a special front end.  From a user's perspective it is not
 # really a language, but a middle end feature.  However, the GIMPLE

gcc/lto/lto-common.h

+/* LTO common functions between lto.c and lto-dump.c header file.
+   Copyright (C) 2018 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 LTO_COMMON_H
+#define LTO_COMMON_H
+
+void lto_fe_init (void);
+void read_cgraph_and_symbols (unsigned, const char **);
+void print_lto_report_1 (void);
+
+extern tree lto_eh_personality_decl;
+extern GTY(()) vec<tree, va_gc> *tree_with_vars;
+extern const unsigned char *lto_mode_identity_table;
+extern tree first_personality_decl;
+
+#endif
+

gcc/lto/lto-lang.c

@@ -34,6 +34,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "debug.h"
 #include "lto-tree.h"
 #include "lto.h"
+#include "lto-common.h"
 #include "stringpool.h"
 #include "attribs.h"