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

skia/BUILD.gn

 # Copyright (c) 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 if (current_cpu == "arm") {
   import("//build/config/arm.gni")
 }
@@ skipping 502 matching lines @@
       defines = [ "SK_CPU_SSE_LEVEL=31" ]
     }
     visibility = [ ":skia_opts" ]
     configs -= [ "//build/config/compiler:chromium_code" ]
     configs += [
       ":skia_config",
       ":skia_library_config",
       "//build/config/compiler:no_chromium_code",
     ]
   }
-  source_set("skia_opts_sse4") {
+  source_set("skia_opts_sse41") {
     sources = gypi_skia_opts.sse41_sources
     if (!is_win || is_clang) {
       cflags = [ "-msse4.1" ]
     }
     if (is_win) {
       defines = [ "SK_CPU_SSE_LEVEL=41" ]
     }
     visibility = [ ":skia_opts" ]
     configs -= [ "//build/config/compiler:chromium_code" ]
     configs += [
       ":skia_config",
       ":skia_library_config",
       "//build/config/compiler:no_chromium_code",
     ]
   }
+  source_set("skia_opts_sse42") {
+    sources = gypi_skia_opts.sse42_sources
+    if (!is_win || is_clang) {
+      cflags = [ "-msse4.2" ]
+    }
+    if (is_win) {
+      defines = [ "SK_CPU_SSE_LEVEL=42" ]
+    }
+    visibility = [ ":skia_opts" ]
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      ":skia_config",
+      ":skia_library_config",
+      "//build/config/compiler:no_chromium_code",
+    ]
+  }
+  source_set("skia_opts_avx") {
+    sources = gypi_skia_opts.avx_sources
+    if (!is_win || is_clang) {
+      cflags = [ "-mavx" ]
+    }
+    if (is_win) {
+      cflags = [ "/arch:AVX" ]
+    }
+    visibility = [ ":skia_opts" ]
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      ":skia_config",
+      ":skia_library_config",
+      "//build/config/compiler:no_chromium_code",
+    ]
+  }
+  source_set("skia_opts_avx2") {
+    sources = gypi_skia_opts.avx2_sources
+    if (!is_win || is_clang) {
+      cflags = [ "-mavx2" ]
+    }
+    if (is_win) {
+      cflags = [ "/arch:AVX2" ]
+    }
+    visibility = [ ":skia_opts" ]
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      ":skia_config",
+      ":skia_library_config",
+      "//build/config/compiler:no_chromium_code",
+    ]
+  }
 }
 source_set("skia_opts") {
   cflags = []
   defines = []
 
   deps = [
     "//base",
   ]
 
   if (current_cpu == "x86" || current_cpu == "x64") {
     sources = gypi_skia_opts.sse2_sources
     deps += [
       ":skia_opts_sse3",
-      ":skia_opts_sse4",
+      ":skia_opts_sse41",
+      ":skia_opts_sse42",
+      ":skia_opts_avx",
+      ":skia_opts_avx2",
     ]
   } else if (current_cpu == "arm") {
     # The assembly uses the frame pointer register (r7 in Thumb/r11 in
     # ARM), the compiler doesn't like that.
     cflags += [ "-fomit-frame-pointer" ]
 
     if (arm_version >= 7) {
       sources = gypi_skia_opts.armv7_sources
       if (arm_use_neon || arm_optionally_use_neon) {
         sources += gypi_skia_opts.neon_sources
@@ skipping 97 matching lines @@
     ]
 
     deps = [
       ":skia",
       "//base",
       "//base/test:test_support",
       "//build/config/sanitizers:deps",
     ]
   }
 }