Auto merge of #134438 - lqd:const-qualif-bitsets, r=compiler-errors

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Use `MixedBitSet`s in const qualif

These analyses' domains should be very homogeneous, having compressed bitmaps on huge cfgs should make a difference (and doesn’t have an impact on the smaller / regular cfgs in our benchmarks).

This is a >40% walltime reduction on [this stress test](https://github.com/Manishearth/icu4x_compile_sample) extracted from a real world ICU case, and a 10x or so max-rss reduction.

cc `@oli-obk` `@RalfJung`

Should help with (or fix) issue #134404.

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bors 2024-12-20 04:48:19 +00:00

parent 5a36a75ab8 8a1d610714

commit 6c8cb99c2b

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