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rustc_query_system: explicitly register reused dep nodes

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Register nodes that we've reused from the previous session explicitly
with `OnDiskCache`. Previously, we relied on this happening as a side
effect of accessing the nodes in the `PreviousDepGraph`. For the sake of
performance and avoiding unintended side effects, register explictily.
This commit is contained in:
Tyson Nottingham 2020-12-18 16:00:52 -08:00
parent eb4fc71dc9
commit 7795801902
6 changed files with 51 additions and 62 deletions
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6
compiler/rustc_middle/src/dep_graph/mod.rs
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@ -5,7 +5,7 @@ use rustc_data_structures::profiling::SelfProfilerRef;
use rustc_data_structures::sync::Lock;
use rustc_data_structures::thin_vec::ThinVec;
use rustc_errors::Diagnostic;
use rustc_hir::def_id::{DefPathHash, LocalDefId};
use rustc_hir::def_id::LocalDefId;
mod dep_node;
@ -91,9 +91,9 @@ impl<'tcx> DepContext for TyCtxt<'tcx> {
type DepKind = DepKind;
type StableHashingContext = StableHashingContext<'tcx>;
fn register_reused_dep_path_hash(&self, hash: DefPathHash) {
fn register_reused_dep_node(&self, dep_node: &DepNode) {
if let Some(cache) = self.queries.on_disk_cache.as_ref() {
cache.register_reused_dep_path_hash(*self, hash)
cache.register_reused_dep_node(*self, dep_node)
}
}