Stop using the avx512er and avx512pf x86 target features

[zmodem]

They are no longer supported by LLVM 19.

Fixes #125492

[rustbot]

r? @cjgillot

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[rustbot]

Some changes occurred in src/tools/rustfmt

cc @rust-lang/rustfmt

Some changes occurred in tests/ui/check-cfg

cc @Urgau

[zmodem]

cc @durin42 @krasimirgg

Can someone add the llvm-main label please?

[durin42]

@rustbot +llvm-main

[durin42]

@rustbot label llvm-main

[workingjubilee]

Squash please.

r? @workingjubilee

[workingjubilee]

You need to pingback the AVX512 features tracking issue which tracks these as unstable.

[workingjubilee]

You need to pingback the AVX512 features tracking issue which tracks these as unstable.

it is possible this does not exist, which would be annoying.

[zmodem]

Squash please.

Done.

You need to pingback the AVX512 features tracking issue which tracks these as unstable.

I didn't find one. (But I'm also a newbie here, and not completely sure what I'm looking for..)

[workingjubilee]

these features should have been tracked by #111137 or there should have been another tracking issue for them.

[workingjubilee]

It looks like it simply had gone untracked, which isn't your fault.

If LLVM is planning on dropping any other features on the avx512 target feature list here, then letting us know on that tracking issue would be good before we stabilize anything. But this can simply be dropped without notice as it's behind a nightly feature.

@bors r+

[bors]

📌 Commit 3fe3157 has been approved by workingjubilee

It is now in the queue for this repository.