Add support for VCCLCompilerTool EnableEnhancedInstructionSet setting.

test/win/gyptest-cl-enable-enhanced-instruction-set.py

+#!/usr/bin/env python
+
+# Copyright (c) 2014 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.
+
+"""
+Test VCCLCompilerTool EnableEnhancedInstructionSet setting.
+"""
+
+import TestGyp
+
+import os
+import sys
+
+if sys.platform == 'win32':
+  test = TestGyp.TestGyp()
+
+  CHDIR = 'compiler-flags'
+  test.run_gyp('enable-enhanced-instruction-set.gyp', chdir=CHDIR)
+
+  test.build('enable-enhanced-instruction-set.gyp', test.ALL, chdir=CHDIR)
+
+  test.run_built_executable('sse_extensions', chdir=CHDIR,
+                            stdout='/arch:SSE\n')
+  test.run_built_executable('sse2_extensions', chdir=CHDIR,
+                            stdout='/arch:SSE2\n')
+
+  # /arch:AVX introduced in VS2010, but MSBuild support lagged until 2012.
+  if os.path.exists(test.built_file_path('avx_extensions')):
+    test.run_built_executable('no_extensions', chdir=CHDIR,
+                              stdout='/arch:AVX\n')
+
+  # /arch:IA32 introduced in VS2012.
+  if os.path.exists(test.built_file_path('no_extensions')):
+    test.run_built_executable('no_extensions', chdir=CHDIR,
+                              stdout='/arch:IA32\n')
+
+  test.pass_test()