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Rollup merge of #142715 - folkertdev:fn-align-corrections, r=jdonszelmann

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correct template for `#[align]` attribute

Tracking issue: https://github.com/rust-lang/rust/issues/82232
related: https://github.com/rust-lang/rust/pull/142507

I didn't fully understand what `template!` did, clearly. An empty `#[align]` attribute was still rejected later, but without this change it does get suggested in certain cases.

I've also updated some outdated references to `#[repr(align)]` on functions.

r? ``@jdonszelmann``
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Jakub Beránek 2025-06-20 20:03:21 +02:00 • committed by GitHub
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2
src/doc/unstable-book/src/compiler-flags/min-function-alignment.md
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@ -15,7 +15,7 @@ This flag is equivalent to:
- `-fmin-function-alignment` for [GCC](https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-fmin-function-alignment_003dn)
- `-falign-functions` for [Clang](https://clang.llvm.org/docs/ClangCommandLineReference.html#cmdoption-clang1-falign-functions)
The specified alignment is a minimum. A higher alignment can be specified for specific functions by using the [`repr(align(...))`](https://github.com/rust-lang/rust/issues/82232) feature and annotating the function with a `#[repr(align(<align>))]` attribute. The attribute's value is ignored when it is lower than the value passed to `min-function-alignment`.
The specified alignment is a minimum. A higher alignment can be specified for specific functions by using the [`align(...)`](https://github.com/rust-lang/rust/issues/82232) feature and annotating the function with a `#[align(<align>)]` attribute. The attribute's value is ignored when it is lower than the value passed to `min-function-alignment`.
There are two additional edge cases for this flag: