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

Auto merge of #109117 - oli-obk:locks, r=michaelwoerister

Browse source 
Avoid a few locks

We can use atomics or datastructures tuned for specific access patterns instead of locks. This may be an improvement for parallel rustc, but it's mostly a cleanup making various datastructures only usable in the way they are used right now (append data, never mutate), instead of having a general purpose lock.
This commit is contained in:
bors 2023-04-05 10:38:02 +00:00
commit 383c1d729e
17 changed files with 137 additions and 47 deletions
Download patch file Download diff file Expand all files Collapse all files

4
compiler/rustc_interface/src/queries.rs
View file

@ -7,7 +7,7 @@ use rustc_codegen_ssa::traits::CodegenBackend;
use rustc_codegen_ssa::CodegenResults;
use rustc_data_structures::steal::Steal;
use rustc_data_structures::svh::Svh;
use rustc_data_structures::sync::{AppendOnlyVec, Lrc, OnceCell, RwLock, WorkerLocal};
use rustc_data_structures::sync::{AppendOnlyIndexVec, Lrc, OnceCell, RwLock, WorkerLocal};
use rustc_hir::def_id::{CRATE_DEF_ID, LOCAL_CRATE};
use rustc_hir::definitions::Definitions;
use rustc_incremental::DepGraphFuture;
@ -215,7 +215,7 @@ impl<'tcx> Queries<'tcx> {
let cstore = RwLock::new(Box::new(CStore::new(sess)) as _);
let definitions = RwLock::new(Definitions::new(sess.local_stable_crate_id()));
let source_span = AppendOnlyVec::new();
let source_span = AppendOnlyIndexVec::new();
let _id = source_span.push(krate.spans.inner_span);
debug_assert_eq!(_id, CRATE_DEF_ID);
let untracked = Untracked { cstore, source_span, definitions };