// only-x86_64 #[cfg(target_arch = "x86")] use std::arch::x86::*; #[cfg(target_arch = "x86_64")] use std::arch::x86_64::*; unsafe fn pclmul(a: __m128i, b: __m128i, imm8: i32) -> __m128i { _mm_clmulepi64_si128(a, b, imm8) //~ ERROR argument 3 is required to be a constant } fn main() {}