turn on optimizations for sse2 on mac debug

media/media.gyp

 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'chromium_code': 1,
     'player_x11_renderer%': 'x11',
   },
   'targets': [
@@ skipping 297 matching lines @@
       'type': 'static_library',
       'include_dirs': [
         '..',
       ],
       'conditions': [
         [ 'os_posix == 1 and OS != "mac"', {
           'cflags': [
             '-msse2',
           ],
         }],
+        [ 'OS == "mac"', {
+          'configurations': {
+            'Debug': {
+              'xcode_settings': {
+                # gcc on the mac builds horribly unoptimized sse code in debug
+                # mode. Since this is rarely going to be debugged, run with full
+                # optimizations in Debug as well as Release.
+                'GCC_OPTIMIZATION_LEVEL': '3',  # -O3
+               },
+             },
+          },
+        }],
       ],
       'sources': [
         'base/yuv_convert_sse2.cc',
       ],
     },
     {
       'target_name': 'ffmpeg_unittests',
       'type': 'executable',
       'dependencies': [
         'media',
@@ skipping 458 matching lines @@
       ],
     }],
   ],
 }
 
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