Module std::hint

Hints to compiler that affects how code should be emitted or optimized. Hints may be compile time or runtime.

Functions

black_boxExperimental

An identity function that hints to the compiler to be maximally pessimistic about what black_box could do.

spin_loop

Emits a machine instruction to signal the processor that it is running in a busy-wait spin-loop (“spin lock”).

unreachable_unchecked⚠

Informs the compiler that this point in the code is not reachable, enabling further optimizations.

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Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/hint/index.html