1# Copyright (c) 2020 The Chromium Authors. All rights reserved. 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4 5# This file contains configs that need to be added or removed to all 6# SwiftShader libraries 7 8import("../swiftshader.gni") 9import("//build_overrides/build.gni") 10 11declare_args() { 12 # Subzero doesn't support ARM64, MIPS64, and PPC64 (only x86 and ARMv7a). 13 supports_subzero = current_cpu != "arm64" && current_cpu != "mips64el" && current_cpu != "ppc64" 14} 15 16declare_args() { 17 supports_llvm = is_linux || is_chromeos || is_fuchsia || is_win || is_android 18 # LLVM uses C++17 features which require macOS 10.12, while Chrome's minimum platform for x86 is 10.11. 19 # Don't build LLVM on Mac, unless we have to. This only happens on ARM64 devices, which launched with 11.0. 20 # TODO(b/174843857): Remove check for !supports_subzero once Chrome supports macOS 10.12 21 || (is_mac && !supports_subzero) 22} 23 24declare_args() { 25 # Subzero produces much smaller binaries, so always use it when available, 26 # except for MSan builds which only get Reactor code instrumented with LLVM. 27 use_swiftshader_with_subzero = supports_subzero && !is_msan 28}