Remove `PDCM` from the sapphirerapids list (#119)

`PDCM` is not a feature currently used by compilers, see for instance
https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html.

For GCP VMs, only ones that have vPMU [enabled](https://cloud.google.com/compute/docs/manage-pmu-in-vms) would have `PDCM` exposed in the guest. Including `PDCM` would therefore cause these non-vPMU-enabled VMs to be identified as icelake instead.

Bump actions/checkout from 4.1.3 to 4.1.4 (#101)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.1.3 to 4.1.4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@1d96c77...0ad4b8f)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Add a new test, updated README (#87)

Add Neoverse V2 and Armv9 (#79)

Add AMD Zen4 Architecture Flags for LLVM 16 (#69)

* Add AMD Zen4 Architecture Flags for LLVM 16
* Update microarchitectures.json

---------

Co-authored-by: usivakum <[email protected]>

Apple M2: add tentative entry in the JSON file (#55)

This includes output from darwin `sysctl` and a sample
of /proc/cpuinfo from asahi linux

OneAPI support for x86-64-v[2-4] in 2021.2.0:

Add riscv64 arch and u74mc uarch (#35)

Add riscv64 arch and SiFive u74mc uarch.

First version of GCC with RISC-V support was 7.1.
First version of LLVM with RISC-V support was 9.0.
rv64gc is a commonly used shorthand alias for rv64imafdc.

graviton: fixed typo in compiler flags (#18)

Don't use version suffix to distinguish among compilers

Instead of suffixing the version of Clang with "-apple"
change the name of Apple compiler to "apple-clang".