src/compiler/glsl/tests/compare_ir.py

   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
  28 import os
  29 import os.path
  30 import subprocess
  31 import sys
  32 import tempfile
  33
  34 from sexps import *
  35
  36 if len(sys.argv) != 3:
  37     print 'Usage: python2 ./compare_ir.py <file1> <file2>'
  38     exit(1)
  39
  40 with open(sys.argv[1]) as f:
  41     ir1 = sort_decls(parse_sexp(f.read()))
  42 with open(sys.argv[2]) as f:
  43     ir2 = sort_decls(parse_sexp(f.read()))
  44
  45 if ir1 == ir2:
  46     exit(0)
  47 else:
  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)