_mm_undefined_ph in core::arch::x86 - Rust
Description: Return vector of type `__m128h` with indetermination elements. Despite using the word “undefined” (following Intel’s naming scheme), this non-deterministically picks some valid value and is not equivalent to `mem::MaybeUninit`. In practice, this is typically equivalent to `mem::zeroed`.

## _mm_undefined_ph

# Function _mm_undefined_ph

1.94.0 (const: unstable) · Source

    pub fn _mm_undefined_ph() -> __m128h

Available on x86 and target feature `avx512fp16` and target feature `avx512vl` only.
Expand description

Return vector of type `__m128h` with indetermination elements. Despite using the word “undefined” (following Intel’s naming scheme), this non-deterministically picks some valid value and is not equivalent to `mem::MaybeUninit`. In practice, this is typically equivalent to `mem::zeroed`.

Intel’s documentation