1 //! This pass just dumps MIR at a specified point.
8 use rustc_middle::mir::write_mir_pretty;
9 use rustc_middle::mir::Body;
10 use rustc_middle::ty::TyCtxt;
11 use rustc_session::config::{OutputFilenames, OutputType};
13 pub struct Marker(pub &'static str);
15 impl<'tcx> MirPass<'tcx> for Marker {
16 fn name(&self) -> Cow<'_, str> {
20 fn run_pass(&self, _tcx: TyCtxt<'tcx>, _body: &mut Body<'tcx>) {}
23 pub fn emit_mir(tcx: TyCtxt<'_>, outputs: &OutputFilenames) -> io::Result<()> {
24 let path = outputs.path(OutputType::Mir);
25 let mut f = io::BufWriter::new(File::create(&path)?);
26 write_mir_pretty(tcx, None, &mut f)?;