[experiment]: Skip match simplification

[makai410]

r? @ghost

[tmiasko]

@bors try @rust-timer queue

[rust-bors]

☀️ Try build successful (CI)
Build commit: 1d8cc2b (1d8cc2be9340db2dbd2455ecb599b693900a729f)
Base parent: a9066b3 (a9066b3a6e6a0956706c77c49f24a8d258c5ed3b)

[rust-timer]

Finished benchmarking commit (1d8cc2b): comparison URL.

Overall result: ❌✅ regressions and improvements - please read:

Benchmarking means the PR may be perf-sensitive. It's automatically marked not fit for rolling up. Overriding is possible but disadvised: it risks changing compiler perf.

Next, please: If you can, justify the regressions found in this try perf run in writing along with @rustbot label: +perf-regression-triaged. If not, fix the regressions and do another perf run. Neutral or positive results will clear the label automatically.

@bors rollup=never rustc-perf
@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%	[0.1%, 0.9%]	12
Regressions ❌ (secondary)	0.6%	[0.1%, 3.0%]	39
Improvements ✅ (primary)	-0.4%	[-3.4%, -0.1%]	28
Improvements ✅ (secondary)	-0.8%	[-7.3%, -0.1%]	20
All ❌✅ (primary)	-0.2%	[-3.4%, 0.9%]	40

Max RSS (memory usage)

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

Cycles

Results (primary 0.2%, secondary -8.1%)

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

	mean	range	count
Regressions ❌ (primary)	2.4%	[2.4%, 2.4%]	1
Regressions ❌ (secondary)	3.2%	[3.0%, 3.3%]	2
Improvements ✅ (primary)	-2.1%	[-2.1%, -2.1%]	1
Improvements ✅ (secondary)	-11.3%	[-22.6%, -2.0%]	7
All ❌✅ (primary)	0.2%	[-2.1%, 2.4%]	2

Binary size

Results (primary -0.1%, secondary -0.5%)

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

	mean	range	count
Regressions ❌ (primary)	0.1%	[0.0%, 0.3%]	18
Regressions ❌ (secondary)	1.1%	[0.0%, 3.4%]	9
Improvements ✅ (primary)	-0.3%	[-1.1%, -0.0%]	18
Improvements ✅ (secondary)	-0.8%	[-1.1%, -0.0%]	57
All ❌✅ (primary)	-0.1%	[-1.1%, 0.3%]	36

Bootstrap: 457.276s -> 457.521s (0.05%)
Artifact size: 396.43 MiB -> 396.37 MiB (-0.01%)

[rust-bors]

☔ The latest upstream changes (presumably #161338) made this pull request unmergeable. Please resolve the merge conflicts by rebasing.