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@RalfJung RalfJung commented Jul 19, 2022

We were pretty inconsistent with calling this the "tag" vs the "provenance" of the pointer; I think we should consistently call it "provenance".

r? @oli-obk

@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Jul 19, 2022
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rustbot commented Jul 19, 2022

Some changes occurred to MIR optimizations

cc @rust-lang/wg-mir-opt

Some changes occurred to the CTFE / Miri engine

cc @rust-lang/miri

Some changes occurred to the CTFE / Miri engine

cc @rust-lang/miri

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jul 19, 2022
Let's avoid using two different terms for the same thing -- let's just call it "provenance" everywhere.
In Miri, provenance consists of an AllocId and an SbTag (Stacked Borrows tag), which made this even more confusing.
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oli-obk commented Jul 20, 2022

@bors r+

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bors commented Jul 20, 2022

📌 Commit 0ec3269 has been approved by oli-obk

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 20, 2022
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@bors p=1
blocks #99461

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bors commented Jul 20, 2022

⌛ Testing commit 0ec3269 with merge a7468c6...

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bors commented Jul 20, 2022

☀️ Test successful - checks-actions
Approved by: oli-obk
Pushing a7468c6 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Jul 20, 2022
@bors bors merged commit a7468c6 into rust-lang:master Jul 20, 2022
@rustbot rustbot added this to the 1.64.0 milestone Jul 20, 2022
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Finished benchmarking commit (a7468c6): comparison url.

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results
  • Primary benchmarks: mixed results
  • Secondary benchmarks: mixed results
mean1 max count2
Regressions 😿
(primary)
4.8% 6.4% 2
Regressions 😿
(secondary)
2.3% 2.3% 1
Improvements 🎉
(primary)
-1.0% -1.0% 1
Improvements 🎉
(secondary)
-2.2% -2.2% 1
All 😿🎉 (primary) 2.9% 6.4% 3

Cycles

This benchmark run did not return any relevant results for this metric.

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

@rustbot label: -perf-regression

Footnotes

  1. the arithmetic mean of the percent change

  2. number of relevant changes

@RalfJung RalfJung deleted the provenance branch July 22, 2022 13:08
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