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.