diff options
Diffstat (limited to 'compiler/rustc_mir_transform/src/dump_mir.rs')
-rw-r--r-- | compiler/rustc_mir_transform/src/dump_mir.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/compiler/rustc_mir_transform/src/dump_mir.rs b/compiler/rustc_mir_transform/src/dump_mir.rs new file mode 100644 index 000000000..6b995141a --- /dev/null +++ b/compiler/rustc_mir_transform/src/dump_mir.rs @@ -0,0 +1,28 @@ +//! This pass just dumps MIR at a specified point. + +use std::borrow::Cow; +use std::fs::File; +use std::io; + +use crate::MirPass; +use rustc_middle::mir::write_mir_pretty; +use rustc_middle::mir::Body; +use rustc_middle::ty::TyCtxt; +use rustc_session::config::{OutputFilenames, OutputType}; + +pub struct Marker(pub &'static str); + +impl<'tcx> MirPass<'tcx> for Marker { + fn name(&self) -> Cow<'_, str> { + Cow::Borrowed(self.0) + } + + fn run_pass(&self, _tcx: TyCtxt<'tcx>, _body: &mut Body<'tcx>) {} +} + +pub fn emit_mir(tcx: TyCtxt<'_>, outputs: &OutputFilenames) -> io::Result<()> { + let path = outputs.path(OutputType::Mir); + let mut f = io::BufWriter::new(File::create(&path)?); + write_mir_pretty(tcx, None, &mut f)?; + Ok(()) +} |