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# Copyright 2019 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.
# These are primarily relevant in target_cpu == "x64" contexts, where
# X64 code is being compiled.
if (target_cpu == "x64") {
declare_args() {
# The micro architecture of x64 cpu. This will be a string like "haswell" or
# "skylake". An empty string means to use the default architecture which is
# "x86-64".
# CPU options for "x86-64" in GCC can be found at
# https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html
# CPU options for "x86-64" in llvm can be found at
# https://github.com/llvm/llvm-project/blob/master/llvm/include/llvm/Support/X86TargetParser.def
x64_arch = ""
}
if ((is_posix && !is_apple) || is_fuchsia) {
if (x64_arch == "") {
x64_arch = "x86-64"
}
}
}
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