diff options
Diffstat (limited to 'tests/codegen-llvm/sse42-implies-crc32.rs')
| -rw-r--r-- | tests/codegen-llvm/sse42-implies-crc32.rs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tests/codegen-llvm/sse42-implies-crc32.rs b/tests/codegen-llvm/sse42-implies-crc32.rs new file mode 100644 index 00000000000..8a9c496a3a5 --- /dev/null +++ b/tests/codegen-llvm/sse42-implies-crc32.rs @@ -0,0 +1,15 @@ +//@ only-x86_64 +//@ compile-flags: -Copt-level=3 + +#![crate_type = "lib"] + +#[cfg(target_arch = "x86_64")] +#[target_feature(enable = "sse4.2")] +#[no_mangle] +pub unsafe fn crc32sse(v: u8) -> u32 { + use std::arch::x86_64::*; + let out = !0u32; + _mm_crc32_u8(out, v) +} + +// CHECK: attributes #0 {{.*"target-features"=".*\+sse4.2,\+crc32.*"}} |