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Rollup merge of #152329 - Zoxc:simple-parallel-macro, r=nnethercote

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Simplify parallel! macro

This replaces the `parallel!` macro with a `par_fns` function.
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Stuart Cook 2026-02-13 15:19:12 +11:00 • committed by GitHub
commit 09720ec3d0
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7 changed files with 64 additions and 73 deletions
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4
compiler/rustc_metadata/src/rmeta/encoder.rs
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@ -7,7 +7,7 @@ use std::sync::Arc;
use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
use rustc_data_structures::memmap::{Mmap, MmapMut};
use rustc_data_structures::sync::{join, par_for_each_in};
use rustc_data_structures::sync::{par_for_each_in, par_join};
use rustc_data_structures::temp_dir::MaybeTempDir;
use rustc_data_structures::thousands::usize_with_underscores;
use rustc_feature::Features;
@ -2461,7 +2461,7 @@ pub fn encode_metadata(tcx: TyCtxt<'_>, path: &Path, ref_path: Option<&Path>) {
// Prefetch some queries used by metadata encoding.
// This is not necessary for correctness, but is only done for performance reasons.
// It can be removed if it turns out to cause trouble or be detrimental to performance.
join(
par_join(
|| prefetch_mir(tcx),
|| {
let _ = tcx.exported_non_generic_symbols(LOCAL_CRATE);