* Attempt to fix tests on master
* Make all doctests use items from the real `std` rather than this
crate, it's just easier
* Handle debuginfo weirdness by flagging functions as `no_mangle` that
we're looking for instructions within.
* Handle double undescores in symbol names
After using MMX intrinsics the FPU must be
cleared by using _mm_empty() before interfacing
with any x87 code.
This commit makes the simd_test macro automatically do that
when one of the features enabled is "mmx".
This commit:
* renames `coresimd` to `core_arch` and `stdsimd` to `std_detect`
* `std_detect` does no longer depend on `core_arch` - it is a freestanding
`no_std` library that only depends on `core` - it is renamed to `std_detect`
* moves the top-level coresimd and stdsimd directories into the appropriate
crates/... directories - this simplifies creating crate.io releases of these crates
* moves the top-level `coresimd` and `stdsimd` sub-directories into their
corresponding crates in `crates/{core_arch, std_detect}`.
This intrinsic isn't actually specified by Intel, but it's something
gated with CPUID and can otherwise be a useful thing to have when
building primitives!
There exists an `AtomicU128` type in the standard library but it's only
exposed currently (and it's unstable) when a platform fully supports
128-bit atomics. The x86_64 architecture does not support it *unless*
the `cmpxchg16b` instruction is available, and it isn't always available!
This commit is also a proposal for how we can include support for
128-bit atomics in the standard library on relevant platforms. I'm
thinking that we'll expose this one low-level intrinsic in
`std::arch::x86_64`, and then if desired a crate on crates.io can build
`AtomicU128` from this API.
In any case this is all unstable regardless!
This commit implements automatic verification of implement ARM/AArch64
intrinsics. Or it's at least a start! This downloads a snapshot of ARM's
[online documentation][docs] and implements necessary logic to parse
that and use it to verify all the intrinsics. Almost everything
checked out A-OK but a few minor tweaks were needed to the neon
intrinsics and the crc ones needed some renaming.
[docs]: https://developer.arm.com/technologies/neon/intrinsics
* Update representation of `v128`
* Rename everything with new naming convention of underscores and no
modules/impls
* Remove no longer necessary `wasm_simd128` feature
* Remove `#[target_feature]` attributes (use `#[cfg]` instead)
* Update `assert_instr` tests
* Update some implementations as LLVM has evolved
* Allow some more esoteric syntax in `#[assert_instr]`
* Adjust the safety of APIs where appropriate
* Remove macros in favor of hand-coded implementations
* Comment out the tests for now as there's no known runtime for these
yet
This commit switches CI to running `rustfmt` on the stable compiler (as
rustfmt is stable now!). Additionally it deletes `rustfmt.toml` to
ensure we're following the same style as the rest of the ecosystem.
