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da58efb11d
This replaces the single Vec allocation with a series of progressively larger buckets. With the cfg for parallel enabled but with -Zthreads=1, this looks like a slight regression in i-count and cycle counts (<0.1%). With the parallel frontend at -Zthreads=4, this is an improvement (-5% wall-time from 5.788 to 5.4688 on libcore) than our current Lock-based approach, likely due to reducing the bouncing of the cache line holding the lock. At -Zthreads=32 it's a huge improvement (-46%: 8.829 -> 4.7319 seconds).
23 lines
548 B
Rust
23 lines
548 B
Rust
// tidy-alphabetical-start
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#![allow(rustc::potential_query_instability, internal_features)]
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#![feature(assert_matches)]
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#![feature(core_intrinsics)]
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#![feature(dropck_eyepatch)]
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#![feature(hash_raw_entry)]
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#![feature(let_chains)]
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#![feature(min_specialization)]
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#![warn(unreachable_pub)]
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// tidy-alphabetical-end
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pub mod cache;
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pub mod dep_graph;
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mod error;
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pub mod ich;
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pub mod query;
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mod values;
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pub use error::{HandleCycleError, LayoutOfDepth, QueryOverflow};
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pub use values::Value;
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rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
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