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Filter predicates first for fast-path type flags

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This commit is contained in:
Michael Goulet 2023-01-20 03:20:17 +00:00
parent 4c83bd03a9
commit 096f454774
1 changed files with 2 additions and 2 deletions
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4
compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
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@ -174,8 +174,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
.param_env .param_env
.caller_bounds() .caller_bounds()
.iter() .iter()
.filter_map(|p| p.to_opt_poly_trait_pred()) .filter(|p| !p.references_error())
.filter(|p| !p.references_error()); .filter_map(|p| p.to_opt_poly_trait_pred());
// Micro-optimization: filter out predicates relating to different traits. // Micro-optimization: filter out predicates relating to different traits.
let matching_bounds = let matching_bounds =