bors 4a86c7907b Auto merge of #96605 - Urgau:string-retain-codegen, r=thomcc ... Improve codegen of String::retain method This pull-request improve the codegen of the `String::retain` method. Using `unwrap_unchecked` helps the optimizer to not generate a panicking path that will never be taken for valid UTF-8 like string. Using `encode_utf8` saves us from an expensive call to `memcpy`, as the optimizer is unable to realize that `ch_len <= 4` and so can generate much better assembly code. https://rust.godbolt.org/z/z73ohenfc		2022-05-21 01:56:51 +00:00
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alloc	Auto merge of #96605 - Urgau:string-retain-codegen, r=thomcc	2022-05-21 01:56:51 +00:00
backtrace@b02ed04a7e	Updated backtrace submodule	2021-11-02 12:31:34 +01:00
core	Rollup merge of #97192 - sunfishcode:sunfishcode/rightmost, r=thomcc	2022-05-20 14:03:06 +02:00
panic_abort	Use Rust ABI for __rust_start_panic and _{rdl,rg}_oom	2022-05-14 02:53:59 +01:00
panic_unwind	Use Rust ABI for __rust_start_panic and _{rdl,rg}_oom	2022-05-14 02:53:59 +01:00
portable-simd	portable-simd: use simd_arith_offset to avoid ptr-int transmutation	2022-04-12 11:09:26 -04:00
proc_macro	Remove some unnecessary rustc_allow_const_fn_unstable attributes.	2022-05-13 16:01:18 +10:00
profiler_builtins	Switch all libraries to the 2021 edition	2021-12-23 19:03:47 +08:00
rtstartup
rustc-std-workspace-alloc	Switch all libraries to the 2021 edition	2021-12-23 19:03:47 +08:00
rustc-std-workspace-core	Switch all libraries to the 2021 edition	2021-12-23 19:03:47 +08:00
rustc-std-workspace-std	Switch all libraries to the 2021 edition	2021-12-23 19:03:47 +08:00
std	Use GRND_INSECURE instead of /dev/urandom when possible	2022-05-21 00:02:20 +02:00
stdarch@28335054b1	Also allow unused macro rules in stdarch	2022-05-10 19:53:22 +02:00
test	Auto merge of #95678 - pietroalbini:pa-1.62.0-bootstrap, r=Mark-Simulacrum	2022-04-07 07:34:04 +00:00
unwind	Auto merge of #97033 - nbdd0121:unwind3, r=Amanieu	2022-05-19 04:04:40 +00:00