- Disable `vsx` tests for `ppc` and `ppc64`
- Disable `tme` tests for `aarch64` and `aarch64_be`
- Disable `frecipe` tests for `loongarch64`
- Add `altivec` run for PPC32 (with `-C target-feature=+vsx` `qemu` gives a nasty error)
This involves moving from the ACLE intrinsic definitions (which aren't
available for SVE at this point) to a JSON file. This was derived from
ARM's documentation[^1], and then relicensed under `MIT OR Apache-2.0` for
use in this repository.
[^1]: https://developer.arm.com/architectures/instruction-sets/intrinsics
This commit adds CI for a few more targets:
* i686-unknown-linux-gnu
* arm-unknown-linux-gnueabihf
* armv7-unknown-linux-gnueabihf
* aarch64-unknown-linux-gnu
The CI here is structured around using a Docker container to set up a test
environment and then QEMU is used to actually execute code from these platforms.
QEMU's emulation actually makes it so we can continue to just use `cargo test`,
as processes can be spawned from QEMU like `objdump` and files can be read (for
libbacktrace). Ends up being a relatively seamless experience!
Note that a number of intrinsics were disabled on i686 because they were failing
tests, and otherwise a few ARM touch-ups were made to get tests passing.
