Use IndexVec for coroutine local mapping

[ldm0]

Resolves a old FIXME

[rustbot]

r? @saethlin

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[rustbot]

Some changes occurred to MIR optimizations

cc @rust-lang/wg-mir-opt

[saethlin]

@bors try @rust-timer queue

[bors]

⌛ Trying commit a9194f3 with merge 94e7397...

[bors]

☀️ Try build successful - checks-actions
Build commit: 94e7397 (94e73972c1c7d4a3eae557d1a4087cfb049d9fa8)

[rust-timer]

Finished benchmarking commit (94e7397): 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 (secondary 2.8%)

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
Regressions ❌ (secondary)	2.8%	[1.5%, 3.9%]	12
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

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: 742.115s -> 742.225s (0.01%)
Artifact size: 327.64 MiB -> 327.62 MiB (-0.01%)

[saethlin]

Thanks! I bet we have a lot of these FIXMEs floating around, I've probably created a few, and I'd be quite happy to see you or anyone else knocking them out or asking for help on them.

@bors r+ rollup=iffy

[bors]

📌 Commit a9194f3 has been approved by saethlin

It is now in the queue for this repository.

[bors]

⌛ Testing commit a9194f3 with merge 486bc27...

[bors]

☀️ Test successful - checks-actions
Approved by: saethlin
Pushing 486bc27 to master...

[rust-timer]

Finished benchmarking commit (486bc27): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

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

Max RSS (memory usage)

Results (secondary 2.2%)

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
Regressions ❌ (secondary)	2.2%	[0.5%, 4.0%]	8
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Cycles

Results (secondary -10.1%)

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)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-10.1%	[-10.5%, -9.8%]	6
All ❌✅ (primary)	-	-	0

Binary size

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

Bootstrap: 740.571s -> 738.413s (-0.29%)
Artifact size: 328.21 MiB -> 328.22 MiB (0.00%)