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Avoid hashing when creating a DepNode from a HirId - #44335
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Instead, combine the already-present DefPathHash with the 32-bit ItemLocalIndex. Should fixrust-lang#44323.
arielb1
commented
Sep 5, 2017
ContributorAuthor
See #44337 for worries about collision-resistance + combine. |
alexcrichton
commented
Sep 5, 2017
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bors
commented
Sep 5, 2017
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📌 Commit d14ed92 has been approved by |
michaelwoerister
commented
Sep 7, 2017
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Just wanted to add this to a rollup, but we are interested in the performance impact of this change, so it should stay a separate merge commit. Just in case anybody else gets a similar idea. |
Mark-Simulacrum
commented
Sep 8, 2017
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@bors p=1 (perf improvement, hopefully) |
bors
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Sep 9, 2017
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bors added a commit
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Sep 9, 2017
Avoid hashing when creating a DepNode from a HirId Instead, combine the already-present DefPathHash with the 32-bit ItemLocalIndex. Should fix#44323. r? @alexcrichton
bors
commented
Sep 9, 2017
Collaborator
☀️ Test successful - status-appveyor, status-travis |
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Instead, combine the already-present DefPathHash with the 32-bit
ItemLocalIndex.
Should fix#44323.
r? @alexcrichton