Rollup of 6 pull requests #105122
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Rollup of 6 pull requests #105122
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This removes the need to maintain a list of all other OSs which ignore the tests.
DIV tags have block display by default. It is from when this rule used to target a SPAN tag, but became redundant in 4bd6748.
`#![custom_mir]`: Various improvements
This PR makes a bunch of improvements to `#![custom_mir]`. Ideally this would be 4 PRs, one for each commit, but those would take forever to get merged and be a pain to juggle. Should still be reviewed one commit at a time though.
### Commit 1: Support arbitrary `let`
Before this change, all locals used in the body need to be declared at the top of the `mir!` invocation, which is rather annoying. We attempt to change that.
Unfortunately, we still have the requirement that the output of the `mir!` macro must resolve, typecheck, etc. Because of that, we can't just accept this in the THIR -> MIR parser because something like
```rust
{
let x = 0;
Goto(other)
}
other = {
RET = x;
Return()
}
```
will fail to resolve. Instead, the implementation does macro shenanigans to find the let declarations and extract them as part of the `mir!` macro. That *works*, but it is fairly complicated and degrades debuginfo by quite a bit. Specifically, the spans for any statements and declarations that are affected by this are completely wrong. My guess is that this is a net improvement though.
One way to recover some of the debuginfo would be to not support type annotations in the `let` statements, which would allow us to parse like `let $stmt:stmt`. That seems quite surprising though.
### Commit 2: Parse consts
Reuses most of the const parsing from regular Mir building for building custom mir
### Commit 3: Parse statics
Statics are slightly weird because the Mir primitive associated with them is a reference/pointer to them, so this is factored out separately.
### Commit 4: Fix some spans
A bunch of the spans were non-ideal, so we adjust them to be much more helpful.
r? `@oli-obk`
…acrum Run Windows-only tests only on Windows This removes the need to maintain an ignore-list of all other OSs. See rust-lang#102305 for a similar change.
Fix `expr_to_spanned_string` ICE Fixes rust-lang#105011
Extract llvm datalayout parsing out of spec module fix rust-lang#103693 (comment)
…-div-desc, r=GuillaumeGomez
rustdoc: remove redundant CSS `div.desc { display: block }`
DIV tags have block display by default. It is from when this rule used to target a SPAN tag, but became redundant in 4bd6748.
Fix ICE from rust-lang#105101 Fixes rust-lang#105101 Rather than comparing idents, compare spans, which should be unique to each variant.
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@bors r+ rollup=never p=5 |
bors
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ah there's already a rollup running, oops :P |
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Successful merges:
#![custom_mir]: Various improvements #104975 (#![custom_mir]: Various improvements)expr_to_spanned_stringICE #105078 (Fixexpr_to_spanned_stringICE)div.desc { display: block }#105088 (rustdoc: remove redundant CSSdiv.desc { display: block })#[derive(Default)]on enum with repeated variant names #105101)Failed merges:
r? @ghost
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