pub unsafe fn _mm_testc_si128(a: __m128i, mask: __m128i) -> i32Available on (x86 or x86-64) and target feature 
sse4.1 and x86 only.Expand description
Tests whether the specified bits in a 128-bit integer vector are all ones.
Arguments:
- a- A 128-bit integer vector containing the bits to be tested.
- mask- A 128-bit integer vector selecting which bits to test in operand- a.
Returns:
- 1- if the specified bits are all ones,
- 0- otherwise.