# Function core::arch::x86::_mm256_testz_si256

1.27.0 · source ·

    pub unsafe fn _mm256_testz_si256(a: __m256i, b: __m256i) -> i32

Available on (x86 or x86-64) and target feature `avx` only.
Expand description

Computes the bitwise AND of 256 bits (representing integer data) in `a` and `b`, and set `ZF` to 1 if the result is zero, otherwise set `ZF` to 0. Computes the bitwise NOT of `a` and then AND with `b`, and set `CF` to 1 if the result is zero, otherwise set `CF` to 0. Return the `ZF` value.

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