Decouple trait impls of different traits wrt incremental

[oli-obk]

Adding a trait impl for Foo unconditionally affected all queries that are interested in a completely independent trait Bar. Let's see if perf has any effect on this. If not, we can land it and I poke further at it to see if we can decouple things further. We probably don't have a good perf test for it tho.

r? @ghost

[oli-obk]

@bors try @rust-timer queue

[bors]

⌛ Trying commit f391497 with merge 6e1b141...

[bors]

☀️ Try build successful - checks-actions
Build commit: 6e1b141 (6e1b1415674df8a0a976d5a0804159b129f3868b)

[rust-timer]

Finished benchmarking commit (6e1b141): comparison URL.

Overall result: no relevant changes - no action needed

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 may lead to changes in compiler perf.

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

Instruction count

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

Max RSS (memory usage)

Results (primary 1.8%, secondary -0.1%)

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	1.8%	[1.8%, 1.8%]	1
Regressions ❌ (secondary)	2.1%	[1.9%, 2.3%]	2
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-2.3%	[-3.0%, -1.5%]	2
All ❌✅ (primary)	1.8%	[1.8%, 1.8%]	1

Cycles

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

Binary size

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

Bootstrap: 779.46s -> 778.12s (-0.17%)
Artifact size: 365.95 MiB -> 365.95 MiB (0.00%)

[oli-obk]

@bors try @rust-timer queue

[bors]

⌛ Trying commit 9d05efb with merge b82ca8c...

[bors]

☀️ Try build successful - checks-actions
Build commit: b82ca8c (b82ca8cbd7c181a1f538c8a2bda13bae748efe04)

[rust-timer]

Finished benchmarking commit (b82ca8c): comparison URL.

Overall result: ✅ improvements - no action needed

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 may lead to changes in compiler perf.

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

Instruction count

This is the most reliable metric that we have; it was used to determine the overall result at the top of this comment. However, even this metric can sometimes exhibit noise.

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

Max RSS (memory usage)

Results (primary 0.7%, secondary -0.3%)

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	0.7%	[0.6%, 0.7%]	3
Regressions ❌ (secondary)	2.0%	[1.7%, 2.3%]	3
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-2.0%	[-3.1%, -1.0%]	4
All ❌✅ (primary)	0.7%	[0.6%, 0.7%]	3

Cycles

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

Binary size

Results (primary 0.1%, secondary 0.0%)

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	0.1%	[0.0%, 0.2%]	52
Regressions ❌ (secondary)	0.0%	[0.0%, 0.0%]	7
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.1%	[0.0%, 0.2%]	52

Bootstrap: 779.46s -> 778.646s (-0.10%)
Artifact size: 365.95 MiB -> 365.95 MiB (0.00%)