v128_load64_splat in core::arch::wasm - Rust
Description: Load a single element and splat to all lanes of a v128 vector.

core::arch::wasm

# Function v128_load64_splat

Source

    pub unsafe fn v128_load64_splat(m: *const u64) -> v128

🔬This is a nightly-only experimental API. (`simd_wasm64` #90599)
Available on `target_family="wasm"` and target feature `simd128` only.
Expand description

Load a single element and splat to all lanes of a v128 vector.

While this intrinsic is provided for completeness it can also be replaced with `u64x2_splat(*m)` and it should generate equivalent code (and also not require `unsafe`).

## §Unsafety

This intrinsic is unsafe because it takes a raw pointer as an argument, and the pointer must be valid to load 8 bytes from. Note that there is no alignment requirement on this pointer since this intrinsic performs a 1-aligned load.