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xmakro changed the title ~~Skip irrelevant foreign impls when building the specialization graph~~ perf: Skip irrelevant foreign impls when building the specialization graph

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perf: Skip irrelevant foreign impls when building the specialization graph

xmakro changed the title ~~perf: Skip irrelevant foreign impls when building the specialization graph~~ perf: skip irrelevant foreign impls when building the specialization graph

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perf: skip irrelevant foreign impls when building the specialization graph

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Rollup of 10 perf-sensitive pull requests
Successful merges:
 - #157281 (perf: skip irrelevant foreign impls when building the specialization graph)
 - #159403 (Next steps for FnDef binder changes (instantiate most FnDef binders))
 - #159763 (Optimize crate resolution for large workspace)
 - #160033 (Speed up `EverInitializedPlaces`)
 - #160268 (perf: store the fulfillment engine inline in ObligationCtxt)
 - #160317 (perf: Cache already-checked types in the privacy visitor)
 - #160399 (interpret: skip deref-projection validity checks when they are not needed)
 - #160451 (Deduplicate target and host filesearch)
 - #160453 (Add fast path to `escape_string_symbol`)
 - #160454 (Add offload guard flags to typeck to prevent perf regressions)

rust-timer added a commit that referenced this pull request

Aug 4, 2026

Rollup merge of #157281 - xmakro:perf/spec-graph-skip-foreign-impls, r=jackh726
perf: skip irrelevant foreign impls when building the specialization graph
Skip foreign non-blanket impls that can't overlap any local impl when building the specialization graph. The call site showed up when profiling and this PR leads to a mean -1.5% instructions perf improvement, see #157281 (comment)

WhySoBad pushed a commit to WhySoBad/miri that referenced this pull request

Aug 5, 2026

…r=jackh726
perf: skip irrelevant foreign impls when building the specialization graph
Skip foreign non-blanket impls that can't overlap any local impl when building the specialization graph. The call site showed up when profiling and this PR leads to a mean -1.5% instructions perf improvement, see rust-lang/rust#157281 (comment)

WhySoBad pushed a commit to WhySoBad/miri that referenced this pull request

Aug 5, 2026