Function run

cranelift/src/bugpoint.rs:39–81

(options: &Options)

}

pub fn run(options: &Options) -> Result<()> {
    let parsed = parse_sets_and_triple(&options.settings, &options.target)?;
    let fisa = parsed.as_fisa();

    let buffer = read_to_string(&options.file)?;
    let test_file = parse_test(&buffer, ParseOptions::default())
        .with_context(|| format!("failed to parse {}", options.file.display()))?;

    // If we have an isa from the command-line, use that. Otherwise if the
    // file contains a unique isa, use that.
    let isa = if let Some(isa) = fisa.isa {
        isa
    } else if let Some(isa) = test_file.isa_spec.unique_isa() {
        isa
    } else {
        anyhow::bail!("compilation requires a target isa");
    };

    unsafe {
        std::env::set_var("RUST_BACKTRACE", "0"); // Disable backtraces to reduce verbosity
    }

    for (func, _) in test_file.functions {
        let (orig_block_count, orig_inst_count) = (block_count(&func), inst_count(&func));

        match reduce(isa, func, options.verbose) {
            Ok((func, crash_msg)) => {
                println!("Crash message: {crash_msg}");
                println!("\n{func}");
                println!(
                    "{} blocks {} insts -> {} blocks {} insts",
                    orig_block_count,
                    orig_inst_count,
                    block_count(&func),
                    inst_count(&func)
                );
            }
            Err(err) => println!("Warning: {err}"),
        }
    }

    Ok(())
}

enum ProgressStatus {
    /// The mutation raised or reduced the amount of instructions or blocks.