Turn off syzygy_optimize by default when is_syzyasan is on.

build/config/compiler/compiler.gni

 # Copyright 2015 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/android/config.gni")
 import("//build/config/chrome_build.gni")
 import("//build/config/chromecast_build.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/toolchain/toolchain.gni")
 
@@ skipping 44 matching lines @@
     full_wpo_on_official = true
   } else {
     full_wpo_on_official = false
   }
 }
 
 declare_args() {
   # Generate Syzygy optimized binaries. Syzygy optimize mode is a profile
   # guided optimization that reorders code for better locality.
   syzygy_optimize = is_win && target_cpu == "x86" && is_official_build &&
-                    !is_clang && !is_win_fastlink
+                    !is_clang && !is_win_fastlink && !is_syzyasan
 }
 
 declare_args() {
   # Whether to use the gold linker from binutils instead of lld or bfd.
   use_gold = !use_lld && !(is_chromecast && is_linux &&
                            (current_cpu == "arm" || current_cpu == "mipsel")) &&
              ((is_linux && (current_cpu == "x64" || current_cpu == "x86" ||
                             current_cpu == "arm" || current_cpu == "mipsel")) ||
               (is_android && (current_cpu == "x86" || current_cpu == "x64" ||
                               current_cpu == "arm")))
@@ skipping 15 matching lines @@
     # Mac and Windows have them separate, so in Release Linux, default them off,
     # but keep them on for Official builds and Chromecast builds.
     symbol_level = 2
   } else if (using_sanitizer) {
     # Sanitizers require symbols for filename suppressions to work.
     symbol_level = 1
   } else {
     symbol_level = 0
   }
 }