bjoernager/rust
bjoernager/rust
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Use SsoHashSet

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This commit is contained in:
Aaron Hill 2021-10-30 18:53:00 -05:00
parent 67da0ff296
commit 851f2b2f96
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GPG key ID: B4087E510E98B164
1 changed files with 2 additions and 2 deletions
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4
compiler/rustc_trait_selection/src/traits/project.rs
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@ -20,7 +20,7 @@ use super::{Normalized, NormalizedTy, ProjectionCacheEntry, ProjectionCacheKey};
use crate::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; use crate::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind};
use crate::infer::{InferCtxt, InferOk, LateBoundRegionConversionTime}; use crate::infer::{InferCtxt, InferOk, LateBoundRegionConversionTime};
use crate::traits::error_reporting::InferCtxtExt as _; use crate::traits::error_reporting::InferCtxtExt as _;
use rustc_data_structures::fx::FxHashSet; use rustc_data_structures::sso::SsoHashSet;
use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_errors::ErrorReported; use rustc_errors::ErrorReported;
use rustc_hir::def_id::DefId; use rustc_hir::def_id::DefId;
@ -945,7 +945,7 @@ fn opt_normalize_projection_type<'a, 'b, 'tcx>(
Normalized { value: projected_ty, obligations: projected_obligations } Normalized { value: projected_ty, obligations: projected_obligations }
}; };
let mut deduped: FxHashSet<_> = Default::default(); let mut deduped: SsoHashSet<_> = Default::default();
result result
.obligations .obligations
.drain_filter(|sub_obligation| !deduped.insert(sub_obligation.clone())); .drain_filter(|sub_obligation| !deduped.insert(sub_obligation.clone()));