delegation: supporting inherent impls

[aerooneqq]

Draft for perf.

r? @petrochenkov

[petrochenkov]

@bors try @rust-timer queue

[rust-bors]

☀️ Try build successful (CI)
Build commit: 38e5ff7 (38e5ff7311d36112747c8aa89f4bb52168984074)
Base parent: c9ff496 (c9ff496891c278ad660bc0ab85c1f0b72059464a)

[rust-timer]

Finished benchmarking commit (38e5ff7): comparison URL.

Overall result: ❌ regressions - no action needed

Benchmarking means the PR may be perf-sensitive. Consider adding rollup=never if this change is not fit for rolling up.

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

Instruction count

Our most reliable metric. Used to determine the overall result above. However, even this metric can be noisy.

	mean	range	count
Regressions ❌ (primary)	0.3%	[0.3%, 0.3%]	1
Regressions ❌ (secondary)	0.2%	[0.2%, 0.2%]	2
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.3%	[0.3%, 0.3%]	1

Max RSS (memory usage)

Results (primary 1.9%, secondary -0.0%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	1.9%	[0.4%, 4.2%]	3
Regressions ❌ (secondary)	1.4%	[0.5%, 2.4%]	2
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-0.6%	[-1.0%, -0.4%]	5
All ❌✅ (primary)	1.9%	[0.4%, 4.2%]	3

Cycles

Results (primary -1.1%, secondary 0.4%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	0.5%	[0.4%, 0.5%]	3
Regressions ❌ (secondary)	1.6%	[0.4%, 5.3%]	6
Improvements ✅ (primary)	-1.8%	[-6.6%, -0.5%]	7
Improvements ✅ (secondary)	-1.4%	[-3.6%, -0.5%]	4
All ❌✅ (primary)	-1.1%	[-6.6%, 0.5%]	10

Binary size

This perf run didn't have relevant results for this metric.

Bootstrap: 489.838s -> 487.916s (-0.39%)
Artifact size: 390.28 MiB -> 391.07 MiB (0.20%)

[petrochenkov]

@bors try @rust-timer queue

[rust-bors]

☀️ Try build successful (CI)
Build commit: 40975b9 (40975b9db210413c2edea725163a22b41796ad3e)
Base parent: 65bcac4 (65bcac45b3d8a8b2126e5cc844cf6fff5795d32a)

[rust-timer]

Finished benchmarking commit (40975b9): comparison URL.

Overall result: ❌ regressions - no action needed

Benchmarking means the PR may be perf-sensitive. Consider adding rollup=never if this change is not fit for rolling up.

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

Instruction count

Our most reliable metric. Used to determine the overall result above. However, even this metric can be noisy.

	mean	range	count
Regressions ❌ (primary)	0.2%	[0.2%, 0.2%]	1
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.2%	[0.2%, 0.2%]	1

Max RSS (memory usage)

Results (primary 1.1%, secondary -0.2%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	1.1%	[0.8%, 1.3%]	2
Regressions ❌ (secondary)	0.6%	[0.4%, 0.8%]	7
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-1.7%	[-3.5%, -0.4%]	4
All ❌✅ (primary)	1.1%	[0.8%, 1.3%]	2

Cycles

Results (primary 2.2%, secondary 0.2%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	2.2%	[2.2%, 2.2%]	1
Regressions ❌ (secondary)	0.9%	[0.4%, 2.7%]	12
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-0.8%	[-1.2%, -0.4%]	8
All ❌✅ (primary)	2.2%	[2.2%, 2.2%]	1

Binary size

Results (primary -0.1%, secondary -0.1%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-0.1%	[-0.1%, -0.0%]	48
Improvements ✅ (secondary)	-0.1%	[-0.1%, -0.0%]	23
All ❌✅ (primary)	-0.1%	[-0.1%, -0.0%]	48

Bootstrap: 458.664s -> 461.027s (0.52%)
Artifact size: 398.60 MiB -> 398.58 MiB (-0.01%)

[rust-bors]

☔ The latest upstream changes (presumably #160725) made this pull request unmergeable. Please resolve the merge conflicts by rebasing.