zlib: inflate using wider loads and stores

third_party/zlib/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_overrides/build.gni")
 
+if (current_cpu == "arm" || current_cpu == "arm64") {
+  import("//build/config/arm.gni")
+}
+
 config("zlib_config") {
   include_dirs = [ "." ]
 }
 
 static_library("zlib_x86_simd") {
   if (!is_ios && (current_cpu == "x86" || current_cpu == "x64")) {
     sources = [
       "crc_folding.c",
       "fill_window_sse.c",
     ]
@@ skipping 49 matching lines @@
     "trees.c",
     "trees.h",
     "uncompr.c",
     "x86.h",
     "zconf.h",
     "zlib.h",
     "zutil.c",
     "zutil.h",
   ]
 
+  if (current_cpu == "arm" || current_cpu == "arm64") {
+    if (arm_use_neon) {
+      sources -= [
+        "inflate.c",
+        "inffast.c",
+      ]
+      sources += [
+        "contrib/arm/inflate.c",
+        "contrib/arm/inffast.c",
+        "contrib/arm/chunkcopy.h",
+      ]
+    }
+  }
+
   if (!is_ios && (current_cpu == "x86" || current_cpu == "x64")) {
     sources += [ "x86.c" ]
   }
 
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [
     "//build/config/compiler:no_chromium_code",
 
     # Must be after no_chromium_code for warning flags to be ordered correctly.
     ":zlib_warnings",
@@ skipping 70 matching lines @@
   static_library("compression_utils") {
     sources = [
       "google/compression_utils.cc",
       "google/compression_utils.h",
     ]
     deps = [
       ":zlib",
     ]
   }
 }