1#  Copyright (C) 2013-2015 Free Software Foundation, Inc.
2#
3# This program is free software; you can redistribute it and/or modify it
4# under the terms of the GNU General Public License as published by the
5# Free Software Foundation; either version 3, or (at your option) any
6# later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with this program; see the file COPYING3.  If not see
15# <http://www.gnu.org/licenses/>.
16
17# This Awk script takes passes.def and writes pass-instances.def,
18# counting the instances of each kind of pass, adding an instance number
19# to everywhere that NEXT_PASS is used.
20#
21# For example, the single-instanced pass:
22#     NEXT_PASS (pass_warn_unused_result);
23# becomes this in the output:
24#     NEXT_PASS (pass_warn_unused_result, 1);
25#
26# The various instances of
27#   NEXT_PASS (pass_copy_prop);
28# become:
29#   NEXT_PASS (pass_copy_prop, 1);
30# through:
31#   NEXT_PASS (pass_copy_prop, 8);
32# (currently there are 8 instances of that pass)
33
34# Usage: awk -f gen-pass-instances.awk passes.def
35
36BEGIN {
37	print "/* This file is auto-generated by gen-pass-instances.awk";
38	print "   from passes.def.  */";
39}
40
41function handle_line()
42{
43	line = $0;
44	where = match(line, /NEXT_PASS \((.+)\)/)
45	if (where != 0)
46	{
47		len_of_start = length("NEXT_PASS (")
48		len_of_end = length(")")
49		len_of_pass_name = RLENGTH - (len_of_start + len_of_end)
50		line_length = length(line)
51		pass_starts_at = where + len_of_start
52		pass_name = substr(line, pass_starts_at, len_of_pass_name)
53		if (pass_name in pass_counts)
54			pass_counts[pass_name]++;
55		else
56			pass_counts[pass_name] = 1;
57		printf "%s, %s%s\n",
58			substr(line, 1, pass_starts_at + len_of_pass_name - 1),
59			pass_counts[pass_name],
60			substr(line, pass_starts_at + len_of_pass_name);
61	} else {
62		print line;
63	}
64}
65
66{ handle_line() }
67