Jörn Horstmann e393f56d37 Improve autovectorization of to_lowercase / to_uppercase functions ...

Refactor the code in the `convert_while_ascii` helper function to make
it more suitable for auto-vectorization and also process the full ascii
prefix of the string. The generic case conversion logic will only be
invoked starting from the first non-ascii character.

The runtime on microbenchmarks with ascii-only inputs improves between
1.5x for short and 4x for long inputs on x86_64 and aarch64.

The new implementation also encapsulates all unsafe inside the
`convert_while_ascii` function.

Fixes #123712

2024-09-23 11:31:29 +02:00

..

arc.rs

PinCoerceUnsized trait into core

2024-07-31 17:10:55 +08:00

autotraits.rs

apply fmt

2024-01-11 15:04:48 +03:00

borrow.rs

remove redundant imports

2023-12-10 10:56:22 +08:00

boxed.rs

Removes dead code from the compiler

2024-08-25 13:41:39 +08:00

btree_set_hash.rs

Reformat use declarations.

2024-07-29 08:26:52 +10:00

c_str.rs

Remove use of reverted std::ffi::c_char

2022-04-27 14:01:04 -07:00

const_fns.rs

fix library and rustdoc tests

2023-04-16 11:38:52 +00:00

cow_str.rs

mv std libs to library/

2020-07-27 19:51:13 -05:00

fmt.rs

Update tests for hidden references to mutable static

2024-09-13 14:10:56 +03:00

heap.rs

Rename AllocRef to Allocator and (de)alloc to (de)allocate

2020-12-04 14:47:15 +01:00

lib.rs

Avoid re-validating UTF-8 in FromUtf8Error::into_utf8_lossy

2024-09-20 20:56:07 -04:00

linked_list.rs

Classify BinaryHeap & LinkedList unit tests as such

2022-03-11 11:33:59 +01:00

rc.rs

PinCoerceUnsized trait into core

2024-07-31 17:10:55 +08:00

slice.rs

Reformat using the new identifier sorting from rustfmt

2024-09-22 19:11:29 -04:00

str.rs

Improve autovectorization of to_lowercase / to_uppercase functions

2024-09-23 11:31:29 +02:00

string.rs

Reformat using the new identifier sorting from rustfmt

2024-09-22 19:11:29 -04:00

task.rs

ignore some vtable/fn ptr equality tests in Miri, their result is not fully predictable

2024-08-12 10:39:11 +02:00

thin_box.rs

Make use of pointer::is_aligned[_to]

2022-08-21 15:46:03 +04:00

vec_deque_alloc_error.rs

Reformat using the new identifier sorting from rustfmt

2024-09-22 19:11:29 -04:00

vec_deque.rs

Reformat using the new identifier sorting from rustfmt

2024-09-22 19:11:29 -04:00

vec.rs

Reformat using the new identifier sorting from rustfmt

2024-09-22 19:11:29 -04:00