[Issue 16958] replace -mavx switch with -mcpu=id

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16958

--- Comment #4 from github-bugzilla at puremagic.com ---
Commits pushed to newCTFE at https://github.com/dlang/dmd

https://github.com/dlang/dmd/commit/a967ec85c8ff5f8a9aa3a7bafc174d3c13c6d4fd
fix Issue 16958 - replace -mavx switch with -mcpu=id

https://github.com/dlang/dmd/commit/6da3eeabf1ee1f2ad7477e3e6e836584edefc048
Merge pull request #6306 from WalterBright/mcpu

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