bjoernager/rust
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Tweak a loop condition.

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This loop condition involves `codegen_state`, `work_items`, and
`running_with_own_token`. But the body of the loop cannot modify
`codegen_state`, so repeatedly checking it is unnecessary.
This commit is contained in:
Nicholas Nethercote 2023-07-21 09:48:57 +10:00
parent d21d31cce7
commit 179bf19813
1 changed files with 11 additions and 7 deletions
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18
compiler/rustc_codegen_ssa/src/back/write.rs
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@ -1431,13 +1431,17 @@ fn start_executing_work<B: ExtraBackendMethods>(
// Spin up what work we can, only doing this while we've got available
// parallelism slots and work left to spawn.
while codegen_state != Aborted
&& !work_items.is_empty()
&& running_with_own_token < tokens.len()
{
let (item, _) = work_items.pop().unwrap();
spawn_work(&cgcx, &mut llvm_start_time, get_worker_id(&mut free_worker_ids), item);
running_with_own_token += 1;
if codegen_state != Aborted {
while !work_items.is_empty() && running_with_own_token < tokens.len() {
let (item, _) = work_items.pop().unwrap();
spawn_work(
&cgcx,
&mut llvm_start_time,
get_worker_id(&mut free_worker_ids),
item,
);
running_with_own_token += 1;
}
}
// Relinquish accidentally acquired extra tokens.