pub fn f64x2_promote_low_f32x4(a: v128) -> v128🔬This is a nightly-only experimental API. (
simd_wasm64 #90599)Available on
target_family="wasm" and target feature simd128 and WebAssembly only.Expand description
Conversion of the two lower single-precision floating point lanes to the two double-precision lanes of the result.