gyptest-link-opt-icf.py

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#!/usr/bin/env python

# Copyright (c) 2012 Google Inc. All rights reserved.

# Use of this source code is governed by a BSD-style license that can be

# found in the LICENSE file.

"""

Make sure comdat folding optimization setting is extracted properly.

"""

import TestGyp

import sys

if sys.platform == 'win32':

  test = TestGyp.TestGyp(formats=['msvs', 'ninja'])

  CHDIR = 'linker-flags'

  test.run_gyp('opt-icf.gyp', chdir=CHDIR)

  test.build('opt-icf.gyp', chdir=CHDIR)

  # We're specifying /DEBUG so the default is to not merge identical

  # functions, so all of the similar_functions should be preserved.

  output = test.run_dumpbin(

      '/disasm', test.built_file_path('test_opticf_default.exe', chdir=CHDIR))

  if output.count('similar_function') != 6: # 3 definitions, 3 calls.

    test.fail_test()

  # Explicitly off, all functions preserved seperately.

  output = test.run_dumpbin(

      '/disasm', test.built_file_path('test_opticf_no.exe', chdir=CHDIR))

  if output.count('similar_function') != 6: # 3 definitions, 3 calls.

    test.fail_test()

  # Explicitly on, all but one removed.

  output = test.run_dumpbin(

      '/disasm', test.built_file_path('test_opticf_yes.exe', chdir=CHDIR))

  if output.count('similar_function') != 4: # 1 definition, 3 calls.

    test.fail_test()

  test.pass_test()