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## f64x2_promote_low_f32x4

# Function f64x2_promote_low_f32x4

Source

    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` only.
Expand description

Conversion of the two lower single-precision floating point lanes to the two double-precision lanes of the result.