Module shuttle::hint

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Expand description

Shuttle’s implementation of std::hint.

Functions§

  • black_box
    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 the site which is calling this function is not reachable, possibly enabling further optimizations.
  • assert_unchecked⚠Experimental
    Makes a soundness promise to the compiler that cond holds.
  • must_useExperimental
    An identity function that causes an unused_must_use warning to be triggered if the given value is not used (returned, stored in a variable, etc) by the caller.