Function core::arch::x86::_mm256_testz_pd
1.27.0 · source · pub unsafe fn _mm256_testz_pd(a: __m256d, b: __m256d) -> i32Available on (x86 or x86-64) and target feature
avx and x86 only.Expand description
Computes the bitwise AND of 256 bits (representing double-precision (64-bit)
floating-point elements) in a and b, producing an intermediate 256-bit
value, and set ZF to 1 if the sign bit of each 64-bit element in the
intermediate value is zero, otherwise set ZF to 0. Compute the bitwise
NOT of a and then AND with b, producing an intermediate value, and set
CF to 1 if the sign bit of each 64-bit element in the intermediate value
is zero, otherwise set CF to 0. Return the ZF value.