_mm_mullo_epi32 in core::arch::x86_64 - Rust
Description: Multiplies the packed 32-bit integers in `a` and `b`, producing intermediate 64-bit integers, and returns the lowest 32-bit, whatever they might be, reinterpreted as a signed integer. While `pmulld __m128i::splat(2), __m128i::splat(2)` returns the obvious `__m128i::splat(4)`, due to wrapping arithmetic `pmulld __m128i::splat(i32::MAX), __m128i::splat(2)` would return a negative number.
Keywords: rust, rustlang, rust-lang, _mm_mullo_epi32

# Function core::arch::x86_64::_mm_mullo_epi32
1.27.0[−][src]

    pub unsafe fn _mm_mullo_epi32(a: __m128i, b: __m128i) -> __m128i

This is supported on x86-64 and target feature `sse4.1` only.
Expand description

Multiplies the packed 32-bit integers in `a` and `b`, producing intermediate 64-bit integers, and returns the lowest 32-bit, whatever they might be, reinterpreted as a signed integer. While `pmulld __m128i::splat(2), __m128i::splat(2)` returns the obvious `__m128i::splat(4)`, due to wrapping arithmetic `pmulld __m128i::splat(i32::MAX), __m128i::splat(2)` would return a negative number.

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