pub unsafe fn _mm_test_all_ones(a: __m128i) -> i32
Available on non-crate feature miri-test-libstd and x86-64 only.
Expand description

Tests whether the specified bits in a 128-bit integer vector are all ones.

Argument:

  • a - A 128-bit integer vector containing the bits to be tested.

Returns:

  • 1 - if the bits specified in the operand are all set to 1,
  • 0 - otherwise.

Intel’s documentation