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//@ ignore-cross-compile
//@ needs-llvm-components: aarch64 x86
// FIXME(#132514): Is needs-llvm-components actually necessary for this test?
use run_make_support::{assert_contains_regex, rfs, rustc, target};
// Test that when querying `--print=target-cpus` for a target with the same
// architecture as the host, the first CPU is "native" with a suitable remark.
fn main() {
let expected = r"^Available CPUs for this target:
native +- Select the CPU of the current host \(currently [^ )]+\)\.
";
// Without an explicit target.
rustc().print("target-cpus").run().assert_stdout_contains_regex(expected);
// With an explicit target that happens to be the host.
let host = target(); // Because of ignore-cross-compile, assume host == target.
rustc().print("target-cpus").target(host).run().assert_stdout_contains_regex(expected);
// With an explicit output path.
rustc().print("target-cpus=./xyzzy.txt").run().assert_stdout_equals("");
assert_contains_regex(rfs::read_to_string("./xyzzy.txt"), expected);
// Now try some cross-target queries with the same arch as the host.
// (Specify multiple targets so that at least one of them is not the host.)
let cross_targets: &[&str] = if cfg!(target_arch = "aarch64") {
&["aarch64-unknown-linux-gnu", "aarch64-apple-darwin"]
} else if cfg!(target_arch = "x86_64") {
&["x86_64-unknown-linux-gnu", "x86_64-apple-darwin"]
} else {
&[]
};
for target in cross_targets {
println!("Trying target: {target}");
rustc().print("target-cpus").target(target).run().assert_stdout_contains_regex(expected);
}
}
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