1 #!/usr/bin/env python 2 3 # Copyright (c) 2013 Google Inc. All rights reserved. 4 # Use of this source code is governed by a BSD-style license that can be 5 # found in the LICENSE file. 6 7 """ 8 Make sure PGO is working properly. 9 """ 10 11 import TestGyp 12 13 import os 14 import sys 15 16 if sys.platform == 'win32': 17 test = TestGyp.TestGyp(formats=['msvs', 'ninja']) 18 19 CHDIR = 'linker-flags' 20 test.run_gyp('pgo.gyp', chdir=CHDIR) 21 22 def IsPGOAvailable(): 23 """Returns true if the Visual Studio available here supports PGO.""" 24 test.build('pgo.gyp', 'gen_linker_option', chdir=CHDIR) 25 tmpfile = test.read(test.built_file_path('linker_options.txt', chdir=CHDIR)) 26 return any(line.find('PGOPTIMIZE') for line in tmpfile) 27 28 # Test generated build files look fine. 29 if test.format == 'ninja': 30 ninja = test.built_file_path('obj/test_pgo_instrument.ninja', chdir=CHDIR) 31 test.must_contain(ninja, '/LTCG:PGINSTRUMENT') 32 test.must_contain(ninja, 'test_pgo.pgd') 33 ninja = test.built_file_path('obj/test_pgo_optimize.ninja', chdir=CHDIR) 34 test.must_contain(ninja, '/LTCG:PGOPTIMIZE') 35 test.must_contain(ninja, 'test_pgo.pgd') 36 ninja = test.built_file_path('obj/test_pgo_update.ninja', chdir=CHDIR) 37 test.must_contain(ninja, '/LTCG:PGUPDATE') 38 test.must_contain(ninja, 'test_pgo.pgd') 39 elif test.format == 'msvs': 40 LTCG_FORMAT = '<LinkTimeCodeGeneration>%s</LinkTimeCodeGeneration>' 41 vcproj = test.workpath('linker-flags/test_pgo_instrument.vcxproj') 42 test.must_contain(vcproj, LTCG_FORMAT % 'PGInstrument') 43 test.must_contain(vcproj, 'test_pgo.pgd') 44 vcproj = test.workpath('linker-flags/test_pgo_optimize.vcxproj') 45 test.must_contain(vcproj, LTCG_FORMAT % 'PGOptimization') 46 test.must_contain(vcproj, 'test_pgo.pgd') 47 vcproj = test.workpath('linker-flags/test_pgo_update.vcxproj') 48 test.must_contain(vcproj, LTCG_FORMAT % 'PGUpdate') 49 test.must_contain(vcproj, 'test_pgo.pgd') 50 51 # When PGO is available, try building binaries with PGO. 52 if IsPGOAvailable(): 53 pgd_path = test.built_file_path('test_pgo.pgd', chdir=CHDIR) 54 55 # Test if 'PGInstrument' generates PGD (Profile-Guided Database) file. 56 if os.path.exists(pgd_path): 57 test.unlink(pgd_path) 58 test.must_not_exist(pgd_path) 59 test.build('pgo.gyp', 'test_pgo_instrument', chdir=CHDIR) 60 test.must_exist(pgd_path) 61 62 # Test if 'PGOptimize' works well 63 test.build('pgo.gyp', 'test_pgo_optimize', chdir=CHDIR) 64 test.must_contain_any_line(test.stdout(), ['profiled functions']) 65 66 # Test if 'PGUpdate' works well 67 test.build('pgo.gyp', 'test_pgo_update', chdir=CHDIR) 68 # With 'PGUpdate', linker should not complain that sources are changed after 69 # the previous training run. 70 test.touch(test.workpath('linker-flags/inline_test_main.cc')) 71 test.unlink(test.built_file_path('test_pgo_update.exe', chdir=CHDIR)) 72 test.build('pgo.gyp', 'test_pgo_update', chdir=CHDIR) 73 test.must_contain_any_line(test.stdout(), ['profiled functions']) 74 75 test.pass_test() 76
