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Don't hash non-fresh Ty::Infer or RegionKind::Infer

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This commit is contained in:
Michael Goulet 2022-10-19 00:19:28 +00:00
parent 4b8f431995
commit 91af4f5d0b
3 changed files with 9 additions and 7 deletions
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6
compiler/rustc_middle/src/ty/context.rs
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@ -198,9 +198,11 @@ impl<'tcx> CtxtInterners<'tcx> {
.intern(kind, |kind| {
let flags = super::flags::FlagComputation::for_kind(&kind);
// It's impossible to hash inference regions (and will ICE), so we don't need to try to cache them.
// It's impossible to hash inference variables (and will ICE), so we don't need to try to cache them.
// Without incremental, we rarely stable-hash types, so let's not do it proactively.
let stable_hash = if flags.flags.intersects(TypeFlags::HAS_RE_INFER)
let stable_hash = if flags
.flags
.intersects(TypeFlags::HAS_RE_INFER | TypeFlags::HAS_TY_INFER)
|| sess.opts.incremental.is_none()
{
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