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Disable destination propagation on all mir-opt-levels

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This commit is contained in:
Tomasz Miąsko 2021-03-06 00:00:00 +00:00
parent 51748a8fc7
commit 6f49aadabb
15 changed files with 260 additions and 147 deletions
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5
compiler/rustc_mir/src/transform/dest_prop.rs
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@ -127,6 +127,11 @@ pub struct DestinationPropagation;
impl<'tcx> MirPass<'tcx> for DestinationPropagation {
fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
// FIXME(#79191, #82678)
if !tcx.sess.opts.debugging_opts.unsound_mir_opts {
return;
}
// Only run at mir-opt-level=3 or higher for now (we don't fix up debuginfo and remove
// storage statements at the moment).
if tcx.sess.mir_opt_level() < 3 {