bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

Iterate ReferencePropagation to fixpoint.

Browse source
This commit is contained in:
Camille GILLOT 2023-05-07 14:58:40 +00:00
parent 25ef277594
commit 19652377c3
14 changed files with 801 additions and 400 deletions
Download patch file Download diff file Expand all files Collapse all files

6
compiler/rustc_mir_transform/src/ref_prop.rs
View file

@ -77,11 +77,11 @@ impl<'tcx> MirPass<'tcx> for ReferencePropagation {
#[instrument(level = "trace", skip(self, tcx, body))]
fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
debug!(def_id = ?body.source.def_id());
propagate_ssa(tcx, body);
while propagate_ssa(tcx, body) {}
}
}
fn propagate_ssa<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
fn propagate_ssa<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) -> bool {
let ssa = SsaLocals::new(body);
let mut replacer = compute_replacement(tcx, body, &ssa);
@ -94,6 +94,8 @@ fn propagate_ssa<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
if replacer.any_replacement {
crate::simplify::remove_unused_definitions(body);
}
replacer.any_replacement
}
#[derive(Copy, Clone, Debug, PartialEq, Eq)]