bors dcbd5f5134 Auto merge of #97526 - Nilstrieb:unicode-is-printable-fastpath, r=joshtriplett ... Add unicode fast path to `is_printable` Before, it would enter the full expensive check even for normal ascii characters. Now, it skips the check for the ascii characters in `32..127`. This range was checked manually from the current behavior. I ran the `tracing` test suite in miri, and it was really slow. I looked at a profile, and miri spent most of the time in `core::char::methods::escape_debug_ext`, where half of that was dominated by `core::unicode::printable::is_printable`. So I optimized it here. The tracing profile: 		2022-05-31 09:34:00 +00:00
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benches	Add unicode fast path to is_printable	2022-05-31 10:51:35 +02:00
primitive_docs	Add primitive documentation to libcore	2021-09-12 02:23:08 +00:00
src	Auto merge of #97526 - Nilstrieb:unicode-is-printable-fastpath, r=joshtriplett	2022-05-31 09:34:00 +00:00
tests	Use Box::new() instead of box syntax in core tests	2022-05-29 01:44:11 +02:00
Cargo.toml	Avoid use of rand::thread_rng in stdlib benchmarks	2022-05-02 00:08:21 -07:00