tree 197fc869e2bc21c3b7f986e8b1d5e93fe099199e
parent f3a02253e9daba0e5c11b94c090dfa9e2e9ad5db
author Shengchen Kan <shengchen.kan@intel.com> 1719993778 +0800
committer GitHub <noreply@github.com> 1719993778 +0800
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[Driver][X86] Add flang visibility for -mapx-features= (#97525)

The default visibility of `m_x86_Features_Group` is `ClangOption,
CLOption`. For x86, we expose `-march` to flang but not `-m<cpuid>`.
`apxf` is special b/c it contains several independent features like
`egpr, ndd, ppx, push2pop2, ccmp, nf, cf` and `zu`.

Users may would like to turn on part of features in different cases

1. enable `ndd` only when writing a code-size sensitive library 
2. disable `ccmp`, `cf` when building component has strong security
request on caches

Hence, we expose `-mapx-features=` to flang for Fortran users.