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#![feature(rustc_private)]
extern crate rustc_data_structures;
extern crate rustc_driver;
extern crate rustc_interface;
extern crate rustc_session;
extern crate rustc_target;
use rustc_data_structures::profiling::print_time_passes_entry;
use rustc_interface::interface;
use rustc_session::config::ErrorOutputType;
use rustc_session::early_error;
use rustc_target::spec::PanicStrategy;
#[derive(Default)]
pub struct CraneliftPassesCallbacks {
time_passes: bool,
}
impl rustc_driver::Callbacks for CraneliftPassesCallbacks {
fn config(&mut self, config: &mut interface::Config) {
// If a --prints=... option has been given, we don't print the "total"
// time because it will mess up the --prints output. See #64339.
self.time_passes = config.opts.prints.is_empty()
&& (config.opts.debugging_opts.time_passes || config.opts.debugging_opts.time);
config.opts.cg.panic = Some(PanicStrategy::Abort);
config.opts.debugging_opts.panic_abort_tests = true;
config.opts.maybe_sysroot = Some(config.opts.maybe_sysroot.clone().unwrap_or_else(|| {
std::env::current_exe()
.unwrap()
.parent()
.unwrap()
.parent()
.unwrap()
.to_owned()
}));
}
}
fn main() {
let start = std::time::Instant::now();
rustc_driver::init_rustc_env_logger();
let mut callbacks = CraneliftPassesCallbacks::default();
rustc_driver::install_ice_hook();
let exit_code = rustc_driver::catch_with_exit_code(|| {
let mut use_jit = false;
let mut args = std::env::args_os()
.enumerate()
.map(|(i, arg)| {
arg.into_string().unwrap_or_else(|arg| {
early_error(
ErrorOutputType::default(),
&format!("Argument {} is not valid Unicode: {:?}", i, arg),
)
})
})
.filter(|arg| {
if arg == "--jit" {
use_jit = true;
false
} else {
true
}
})
.collect::<Vec<_>>();
if use_jit {
args.push("-Cprefer-dynamic".to_string());
}
let mut run_compiler = rustc_driver::RunCompiler::new(&args, &mut callbacks);
run_compiler.set_make_codegen_backend(Some(Box::new(move |_| {
Box::new(rustc_codegen_cranelift::CraneliftCodegenBackend {
config: rustc_codegen_cranelift::BackendConfig { use_jit },
})
})));
run_compiler.run()
});
// The extra `\t` is necessary to align this label with the others.
print_time_passes_entry(callbacks.time_passes, "\ttotal", start.elapsed());
std::process::exit(exit_code)
}
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