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| author | Alex Crichton <alex@alexcrichton.com> | 2017-10-18 10:30:29 -0700 |
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| committer | Alex Crichton <alex@alexcrichton.com> | 2017-11-25 11:03:13 -0800 |
| commit | fe53a8106dfb54b5fe04d2ce7e8ee6472b0d5b16 (patch) | |
| tree | da4d366dc1d68821db4af9ad3213c7481e7064dd /src/libstd/sys | |
| parent | cc6b88ccb2fd10c2ad04a30ba648a1e9abf7ba4b (diff) | |
| download | rust-fe53a8106dfb54b5fe04d2ce7e8ee6472b0d5b16.tar.gz rust-fe53a8106dfb54b5fe04d2ce7e8ee6472b0d5b16.zip | |
rustc: Add support for some more x86 SIMD ops
This commit adds compiler support for two basic operations needed for binding SIMD on x86 platforms: * First, a `nontemporal_store` intrinsic was added for the `_mm_stream_ps`, seen in rust-lang-nursery/stdsimd#114. This was relatively straightforward and is quite similar to the volatile store intrinsic. * Next, and much more intrusively, a new type to the backend was added. The `x86_mmx` type is used in LLVM for a 64-bit vector register and is used in various intrinsics like `_mm_abs_pi8` as seen in rust-lang-nursery/stdsimd#74. This new type was added as a new layout option as well as having support added to the trans backend. The type is enabled with the `#[repr(x86_mmx)]` attribute which is intended to just be an implementation detail of SIMD in Rust. I'm not 100% certain about how the `x86_mmx` type was added, so any extra eyes or thoughts on that would be greatly appreciated!
Diffstat (limited to 'src/libstd/sys')
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