GYP+GN plumbing for SSE4.2, AVX, and AVX2 in Skia.

skia/skia_library_opts.gyp

 # Copyright 2013 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.
 
 # This gyp file contains the platform-specific optimizations for Skia
 {
   'variables': {
       'skia_src_path': '../third_party/skia/src',
       'includes': [ '../third_party/skia/gyp/opts.gypi' ],
       'include_dirs': [
@@ skipping 11 matching lines @@
     # SSE files have to be built in a separate target, because gcc needs
     # different -msse flags for different SSE levels which enable use of SSE
     # intrinsics but also allow emission of SSE2 instructions for scalar code.
     # gyp does not allow per-file compiler flags.
     # For about the same reason, we need to compile the ARM opts files
     # separately as well.
     {
       'target_name': 'skia_opts',
       'type': 'static_library',
       # The optimize: 'max' scattered throughout are particularly
-      # important when compiled by MSVC 2013, which seems 
+      # important when compiled by MSVC 2013, which seems
       # to mis-link-time-compile code that's built with
       # different optimization levels. http://crbug.com/543583
       'variables': {
         'optimize': 'max',
       },
       'includes': [
         'skia_common.gypi',
         '../build/android/increase_size_for_speed.gypi',
         # Disable LTO due to compiler error
         # in mems_in_disjoint_alias_sets_p, at alias.c:393
         # crbug.com/422255
         '../build/android/disable_gcc_lto.gypi',
       ],
       'include_dirs': [ '<@(include_dirs)' ],
       'conditions': [
         [ 'target_arch != "arm" and target_arch != "mipsel" and \
            target_arch != "arm64" and target_arch != "mips64el"', {
           # Chrome builds with -msse2 locally, so sse2_sources could in theory
           # be in the regular skia target. But we need skia_opts for arm
           # anyway, so putting sse2_sources here is simpler than making this
           # conditionally a type none target on x86.
           'sources': [ '<@(sse2_sources)' ],
           'dependencies': [
             'skia_opts_ssse3',
             'skia_opts_sse41',
+            'skia_opts_sse42',
+            'skia_opts_avx',
+            'skia_opts_avx2',
           ],
         }],
         [ 'target_arch == "arm"', {
           'conditions': [
             [ 'arm_version >= 7', {
               'sources': [ '<@(armv7_sources)' ],
             }, {  # arm_version < 7
               'sources': [ '<@(none_sources)' ],
             }],
             [ 'arm_version >= 7 and (arm_neon == 1 or arm_neon_optional == 1)', {
@@ skipping 35 matching lines @@
       ],
     },
     # For the same lame reasons as what is done for skia_opts, we have to
     # create another target specifically for SSSE3 code as we would not want
     # to compile the SSE2 code with -mssse3 which would potentially allow
     # gcc to generate SSSE3 code.
     {
       'target_name': 'skia_opts_ssse3',
       'type': 'static_library',
       # The optimize: 'max' scattered throughout are particularly
-      # important when compiled by MSVC 2013, which seems 
+      # important when compiled by MSVC 2013, which seems
       # to mis-link-time-compile code that's built with
       # different optimization levels. http://crbug.com/543583
       'variables': {
         'optimize': 'max',
       },
       'includes': [
         'skia_common.gypi',
         '../build/android/increase_size_for_speed.gypi',
       ],
       'include_dirs': [ '<@(include_dirs)' ],
@@ skipping 23 matching lines @@
       ],
     },
     # For the same lame reasons as what is done for skia_opts, we also have to
     # create another target specifically for SSE4.1 code as we would not want
     # to compile the SSE2 code with -msse4.1 which would potentially allow
     # gcc to generate SSE4.1 code.
     {
       'target_name': 'skia_opts_sse41',
       'type': 'static_library',
       # The optimize: 'max' scattered throughout are particularly
-      # important when compiled by MSVC 2013, which seems 
+      # important when compiled by MSVC 2013, which seems
       # to mis-link-time-compile code that's built with
       # different optimization levels. http://crbug.com/543583
       'variables': {
         'optimize': 'max',
       },
       'includes': [
         'skia_common.gypi',
         '../build/android/increase_size_for_speed.gypi',
       ],
       'include_dirs': [ '<@(include_dirs)' ],
@@ skipping 13 matching lines @@
           'msvs_settings': {
             'VCCLCompilerTool': { 'AdditionalOptions': [ '-msse4.1' ] },
           },
         }],
         [ 'OS == "win"', {
           'defines' : [ 'SK_CPU_SSE_LEVEL=41' ],
         }],
       ],
     },
     {
+      'target_name': 'skia_opts_sse42',
+      'type': 'static_library',
+      # The optimize: 'max' scattered throughout are particularly
+      # important when compiled by MSVC 2013, which seems
+      # to mis-link-time-compile code that's built with
+      # different optimization levels. http://crbug.com/543583
+      'variables': {
+        'optimize': 'max',
+      },
+      'includes': [
+        'skia_common.gypi',
+        '../build/android/increase_size_for_speed.gypi',
+      ],
+      'include_dirs': [ '<@(include_dirs)' ],
+      'sources': [ '<@(sse42_sources)' ],
+      'conditions': [
+        [ 'OS in ["linux", "freebsd", "openbsd", "solaris", "android"]', {
+          'cflags': [ '-msse4.2' ],
+        }],
+        [ 'OS == "mac"', {
+          'xcode_settings': {
+            'GCC_ENABLE_SSE42_EXTENSIONS': 'YES',
+          },
+        }],
+        [ 'OS == "win" and clang == 1', {
+          # cl.exe's /arch flag doesn't have a setting for SSE4.2, and cl.exe
+          # doesn't need it for intrinsics. clang-cl does need it, though.
+          'msvs_settings': {
+            'VCCLCompilerTool': { 'AdditionalOptions': [ '-msse4.2' ] },
+          },
+        }],
+        [ 'OS == "win"', {
+          'defines' : [ 'SK_CPU_SSE_LEVEL=42' ],
+        }],
+      ],
+    },
+    {
+      'target_name': 'skia_opts_avx',
+      'type': 'static_library',
+      # The optimize: 'max' scattered throughout are particularly
+      # important when compiled by MSVC 2013, which seems
+      # to mis-link-time-compile code that's built with
+      # different optimization levels. http://crbug.com/543583
+      'variables': {
+        'optimize': 'max',
+      },
+      'includes': [
+        'skia_common.gypi',
+        '../build/android/increase_size_for_speed.gypi',
+      ],
+      'include_dirs': [ '<@(include_dirs)' ],
+      'sources': [ '<@(avx_sources)' ],
+      'conditions': [
+        [ 'OS in ["linux", "freebsd", "openbsd", "solaris", "android"]', {
+          'cflags': [ '-mavx' ],
+        }],
+        [ 'OS == "mac"', {
+          'xcode_settings': {
+            'OTHER_CFLAGS': [ '-mavx' ],
+          },
+        }],
+        [ 'OS == "win"', {
+          'msvs_settings': { 'VCCLCompilerTool': { 'EnableEnhancedInstructionSet': '3' } },
+        }],
+      ],
+    },
+    {
+      'target_name': 'skia_opts_avx2',
+      'type': 'static_library',
+      # The optimize: 'max' scattered throughout are particularly
+      # important when compiled by MSVC 2013, which seems
+      # to mis-link-time-compile code that's built with
+      # different optimization levels. http://crbug.com/543583
+      'variables': {
+        'optimize': 'max',
+      },
+      'includes': [
+        'skia_common.gypi',
+        '../build/android/increase_size_for_speed.gypi',
+      ],
+      'include_dirs': [ '<@(include_dirs)' ],
+      'sources': [ '<@(avx2_sources)' ],
+      'conditions': [
+        [ 'OS in ["linux", "freebsd", "openbsd", "solaris", "android"]', {
+          'cflags': [ '-mavx2' ],
+        }],
+        [ 'OS == "mac"', {
+          'xcode_settings': {
+            'OTHER_CFLAGS': [ '-mavx2' ],
+          },
+        }],
+        [ 'OS == "win"', {
+          'msvs_settings': { 'VCCLCompilerTool': { 'EnableEnhancedInstructionSet': '5' } },
+        }],
+      ],
+    },
+    {
       'target_name': 'skia_opts_none',
       'type': 'static_library',
       # The optimize: 'max' scattered throughout are particularly
-      # important when compiled by MSVC 2013, which seems 
+      # important when compiled by MSVC 2013, which seems
       # to mis-link-time-compile code that's built with
       # different optimization levels. http://crbug.com/543583
       'variables': {
         'optimize': 'max',
       },
       'includes': [
         'skia_common.gypi',
         '../build/android/increase_size_for_speed.gypi',
       ],
       'include_dirs': [ '<@(include_dirs)' ],
@@ skipping 31 matching lines @@
           'ldflags': [
             '-march=armv7-a',
             '-Wl,--fix-cortex-a8',
           ],
           'sources': [ '<@(neon_sources)' ],
         },
       ],
     }],
   ],
 }