I've recently integrated the crc64fast-nvme crate with the aws-sdk-rust to support Crc64 checksums for S3. Everything works as expected except the crate fails to compile on x86. You can see an example failure from our CI here.
error[E0425]: cannot find function `_mm_extract_epi64` in this scope
--> /cargo/registry/src/index.crates.io-6f17d22bba15001f/crc64fast-nvme-1.0.0/src/pclmulqdq/x86.rs:53:9
|
53 | _mm_extract_epi64(reduced.0, 1) as u64
| ^^^^^^^^^^^^^^^^^ help: a function with a similar name exists: `_mm_extract_epi16`
|
::: /rust/lib/rustlib/src/rust/library/core/src/../../stdarch/crates/core_arch/src/x86/sse2.rs:1417:1
|
1417 | pub unsafe fn _mm_extract_epi16<const IMM8: i32>(a: __m128i) -> i32 {
| ------------------------------------------------------------------- similarly named function `_mm_extract_epi16` defined hereThe compiler fails to find the _mm_extract_epi64 function which is present on x86_64, but not on 32 bit x86. I can see in the code that there is already a check for this particular intrinsic:
|
&& is_x86_feature_detected!("sse4.1") // _mm_extract_epi64 |
so I expect that this case was meant to be covered, but isn't quite working as expected.
I've recently integrated the
crc64fast-nvmecrate with theaws-sdk-rustto support Crc64 checksums for S3. Everything works as expected except the crate fails to compile onx86. You can see an example failure from our CI here.The compiler fails to find the
_mm_extract_epi64function which is present onx86_64, but not on 32 bitx86. I can see in the code that there is already a check for this particular intrinsic:crc64fast-nvme/src/pclmulqdq/x86.rs
Line 19 in 2450b26