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Auto merge of #115910 - eduardosm:lang-fns-target-features, r=cjgillot

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Prevent using `#[target_feature]` on lang item functions

Fixes https://github.com/rust-lang/rust/issues/109411 and also prevents from using `#[target_feature]` on other `fn` lang items to mitigate the concerns from https://github.com/rust-lang/rust/issues/109411#issuecomment-1477030273.
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bors 2023-09-22 05:07:45 +00:00
commit aace2dfa37
7 changed files with 99 additions and 3 deletions
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4
compiler/rustc_passes/messages.ftl
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@ -407,6 +407,10 @@ passes_invalid_stability =
.label = invalid stability version
.item = the stability attribute annotates this item
passes_lang_item_fn_with_target_feature =
`{$name}` language item function is not allowed to have `#[target_feature]`
.label = `{$name}` language item function is not allowed to have `#[target_feature]`
passes_lang_item_on_incorrect_target =
`{$name}` language item must be applied to a {$expected_target}
.label = attribute should be applied to a {$expected_target}, not a {$actual_target}