rust/benches/helpers/miri_helper.rs
2018-11-17 12:24:27 +01:00

61 lines
1.8 KiB
Rust

extern crate getopts;
extern crate miri;
extern crate rustc;
extern crate rustc_driver;
extern crate test;
use self::miri::eval_main;
use self::rustc_driver::{driver, Compilation};
use std::cell::RefCell;
use std::rc::Rc;
use crate::test::Bencher;
pub struct MiriCompilerCalls<'a>(Rc<RefCell<&'a mut Bencher>>);
fn find_sysroot() -> String {
// Taken from https://github.com/Manishearth/rust-clippy/pull/911.
let home = option_env!("RUSTUP_HOME").or(option_env!("MULTIRUST_HOME"));
let toolchain = option_env!("RUSTUP_TOOLCHAIN").or(option_env!("MULTIRUST_TOOLCHAIN"));
match (home, toolchain) {
(Some(home), Some(toolchain)) => format!("{}/toolchains/{}", home, toolchain),
_ => {
option_env!("RUST_SYSROOT")
.expect(
"need to specify RUST_SYSROOT env var or use rustup or multirust",
)
.to_owned()
}
}
}
pub fn run(filename: &str, bencher: &mut Bencher) {
let args = &[
"miri".to_string(),
format!("benches/helpers/{}.rs", filename),
"--sysroot".to_string(),
find_sysroot(),
];
let bencher = RefCell::new(bencher);
let mut control = driver::CompileController::basic();
control.after_analysis.stop = Compilation::Stop;
control.after_analysis.callback = Box::new(move |state| {
state.session.abort_if_errors();
let tcx = state.tcx.unwrap();
let (entry_node_id, _, _) = state.session.entry_fn.borrow().expect(
"no main or start function found",
);
let entry_def_id = tcx.hir.local_def_id(entry_node_id);
bencher.borrow_mut().iter(|| {
eval_main(tcx, entry_def_id, false);
});
state.session.abort_if_errors();
});
rustc_driver::run_compiler(args, Box::new(control), None, None);
}