pgo.gni (1678B)
1 # Copyright 2016 The Chromium Authors 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import("//chromium/build/config/cast.gni") 6 import("//chromium/build/config/chrome_build.gni") 7 import("//chromium/build/config/chromeos/ui_mode.gni") 8 import("//chromium/build/config/cronet/config.gni") 9 import("//chromium/build/config/dcheck_always_on.gni") 10 import("//chromium/build/config/features.gni") 11 12 if (is_ios) { 13 import("//chromium/build/config/apple/mobile_config.gni") 14 } 15 16 declare_args() { 17 # Specify the current PGO phase. 18 # Here's the different values that can be used: 19 # 0 : Means that PGO is turned off. 20 # 1 : Used during the PGI (instrumentation) phase. 21 # 2 : Used during the PGO (optimization) phase. 22 # PGO profiles are generated from `dcheck_always_on = false` builds. Mixing 23 # those profiles with `dcheck_always_on = true` builds can cause the compiler 24 # to think some code is hotter than it actually is, potentially causing very 25 # bad compile times. 26 chrome_pgo_phase = 0 27 if (!is_cronet_build && !dcheck_always_on && is_official_build && 28 # TODO(crbug.com/1336055): Update this now-outdated condition with regard 29 # to chromecast and determine whether chromeos_is_browser_only is 30 # obsolete. 31 (is_high_end_android || is_win || is_mac || is_fuchsia || 32 (is_linux && !is_castos) || 33 (is_ios && use_blink && target_environment == "device"))) { 34 chrome_pgo_phase = 2 35 } 36 37 # When using chrome_pgo_phase = 2, read profile data from this path. 38 pgo_data_path = "" 39 40 # Whether to enable temporal pgo or not (experimental). 41 temporal_pgo_profile = false 42 }