tests/assembly/x86_64-sse_crc.rs

   1 // only-x86_64
   2 // assembly-output: emit-asm
   3 // compile-flags: --crate-type staticlib -Ctarget-feature=+sse4.2
   4
   5 // CHECK-LABEL: banana
   6 // CHECK: crc32
   7 #[no_mangle]
   8 pub unsafe fn banana(v: u8) -> u32 {
   9     use std::arch::x86_64::*;
  10     let out = !0u32;
  11     _mm_crc32_u8(out, v)
  12 }