[WIP] Add HashStableEq trait, and use it in query code

[Aaron1011]

No description provided.

[rust-highfive]

Some changes occured to the CTFE / Miri engine

cc @rust-lang/miri

[rust-highfive]

r? @estebank

(rust-highfive has picked a reviewer for you, use r? to override)

[Aaron1011]

@bors try @rust-timer queue

[rust-timer]

Awaiting bors try build completion.

@rustbot label: +S-waiting-on-perf

[bors]

⌛ Trying commit e4752aba0e7e2eea6ab5d58b56d7cc153e824e9f with merge 1e58cf04417b05a1ecb0aca7e5f594918a5877b1...

[bors]

💔 Test failed - checks-actions

[Aaron1011]

@bors try

[bors]

⌛ Trying commit 0f179293f49c33f4f1f2efa9b7ddf8e8145e8988 with merge c10a3c94795ff23b162b5aa7bcd14569f59d7c28...

[Aaron1011]

@bors try

[bors]

⌛ Trying commit 0f179293f49c33f4f1f2efa9b7ddf8e8145e8988 with merge 708eedd810b7db0b1413d2f2f814686e767220cf...

[bors]

☀️ Try build successful - checks-actions
Build commit: 708eedd810b7db0b1413d2f2f814686e767220cf (708eedd810b7db0b1413d2f2f814686e767220cf)

[rust-timer]

Queued 708eedd810b7db0b1413d2f2f814686e767220cf with parent a00e130, future comparison URL.

[rust-timer]

Finished benchmarking commit (708eedd810b7db0b1413d2f2f814686e767220cf): comparison url.

Summary: This benchmark run shows 365 relevant regressions 😿 to instruction counts.

• Average relevant regression: 1.3%
• Largest regression in instruction counts: 5.2% on full builds of externs debug

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

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR led to changes in compiler perf.

Next Steps: If you can justify the regressions found in this try perf run, please indicate this with @rustbot label: +perf-regression-triaged along with sufficient written justification. If you cannot justify the regressions please fix the regressions and do another perf run. If the next run shows neutral or positive results, the label will be automatically removed.

@bors rollup=never
@rustbot label: +S-waiting-on-review -S-waiting-on-perf +perf-regression

[bors]

☀️ Try build successful - checks-actions
Build commit: 8c74413655e1246710ed56d1169a1873e8eff36f (8c74413655e1246710ed56d1169a1873e8eff36f)

[rust-timer]

Queued 8c74413655e1246710ed56d1169a1873e8eff36f with parent cc38176, future comparison URL.

[rust-timer]

Finished benchmarking commit (8c74413655e1246710ed56d1169a1873e8eff36f): comparison url.

Summary: This benchmark run shows 13 relevant improvements 🎉 but 81 relevant regressions 😿 to instruction counts.

• Average relevant regression: 0.8%
• Average relevant improvement: -1.1%
• Largest improvement in instruction counts: -1.7% on full builds of match-stress-enum check
• Largest regression in instruction counts: 2.8% on full builds of ctfe-stress-4 check

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

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR led to changes in compiler perf.

Next Steps: If you can justify the regressions found in this try perf run, please indicate this with @rustbot label: +perf-regression-triaged along with sufficient written justification. If you cannot justify the regressions please fix the regressions and do another perf run. If the next run shows neutral or positive results, the label will be automatically removed.

@bors rollup=never
@rustbot label: +S-waiting-on-review -S-waiting-on-perf +perf-regression

[bors]

☔ The latest upstream changes (presumably #94314) made this pull request unmergeable. Please resolve the merge conflicts.

[JohnCSimon]

@Aaron1011
Ping from triage: I'm closing this due to inactivity, Please reopen when you are ready to continue with this.
Note: if you do please open the PR BEFORE you push to it, else you won't be able to reopen - this is a quirk of github.
Thanks for your contribution.

@rustbot label: +S-inactive