cmov 0.5.3

Conditional move CPU intrinsics which are guaranteed on major platforms (ARM32/ARM64, x86/x86_64, RISC-V) to execute in constant-time and not be rewritten as branches by the compiler. Provides wrappers for the CMOV family of instructions on x86/x86_64 and CSEL on AArch64, along with a portable "best-effort" pure Rust fallback implementation.
Documentation 
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//! Backends for `cmov`, only one of which will be selected at compile-time.

// Architecture-specific backends for target architectures with native predication instructions
#[cfg(not(miri))]
#[cfg(target_arch = "aarch64")]
mod aarch64;
#[cfg(not(miri))]
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
mod x86;

// Fallback portable implementation for targets which don't have native predication instructions
// (or if they do, aren't currently supported)
#[cfg(any(
    not(any(target_arch = "aarch64", target_arch = "x86", target_arch = "x86_64")),
    miri
))]
mod soft;