1#!/usr/bin/env python
2# coding=utf-8
3#
4# Copyright © 2011 Intel Corporation
5#
6# Permission is hereby granted, free of charge, to any person obtaining a
7# copy of this software and associated documentation files (the "Software"),
8# to deal in the Software without restriction, including without limitation
9# the rights to use, copy, modify, merge, publish, distribute, sublicense,
10# and/or sell copies of the Software, and to permit persons to whom the
11# Software is furnished to do so, subject to the following conditions:
12#
13# The above copyright notice and this permission notice (including the next
14# paragraph) shall be included in all copies or substantial portions of the
15# Software.
16#
17# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23# DEALINGS IN THE SOFTWARE.
24
25# Compare two files containing IR code.  Ignore formatting differences
26# and declaration order.
27
28import os
29import os.path
30import subprocess
31import sys
32import tempfile
33
34from sexps import *
35
36if len(sys.argv) != 3:
37    print 'Usage: compare_ir <file1> <file2>'
38    exit(1)
39
40with open(sys.argv[1]) as f:
41    ir1 = sort_decls(parse_sexp(f.read()))
42with open(sys.argv[2]) as f:
43    ir2 = sort_decls(parse_sexp(f.read()))
44
45if ir1 == ir2:
46    exit(0)
47else:
48    file1, path1 = tempfile.mkstemp(os.path.basename(sys.argv[1]))
49    file2, path2 = tempfile.mkstemp(os.path.basename(sys.argv[2]))
50    try:
51        os.write(file1, '{0}\n'.format(sexp_to_string(ir1)))
52        os.close(file1)
53        os.write(file2, '{0}\n'.format(sexp_to_string(ir2)))
54        os.close(file2)
55        subprocess.call(['diff', '-u', path1, path2])
56    finally:
57        os.remove(path1)
58        os.remove(path2)
59    exit(1)
60