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Don't hash thir_body #85729

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Merged
merged 2 commits into from
May 27, 2021
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Don't hash thir_body #85729

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fdc15ef
Don't hash `thir_body`
LeSeulArtichaut May 26, 2021
9385be7
Update compiler/rustc_middle/src/query/mod.rs
nikomatsakis May 27, 2021
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2 changes: 2 additions & 0 deletions compiler/rustc_middle/src/query/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -222,6 +222,8 @@ rustc_queries! {

/// Fetch the THIR for a given body. If typeck for that body failed, returns an empty `Thir`.
query thir_body(key: ty::WithOptConstParam<LocalDefId>) -> (&'tcx Steal<thir::Thir<'tcx>>, thir::ExprId) {
// Perf tests revealed that hashing THIR is inefficient (see #85729).
no_hash
desc { |tcx| "building THIR for `{}`", tcx.def_path_str(key.did.to_def_id()) }
}

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