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Rollup of 10 pull requests #127046
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Rollup of 10 pull requests #127046
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- Syntax extensions are replaced by proc macros. - Add rationale for why AST validation pass need to be run post-expansion and why the pass is needed in the first place.
This commit was obtained by repeatedly inlining and simplifying.
It is only implemented for a single type. Directly passing this type is simpler and avoids overhead from indirect calls.
It can be retrieved from the Session too.
They are not representable by Cranelift
This commit too was obtained by repeatedly inlining and simplifying.
as request T-lang is requesting some major changes in the lint inner workings in rust-lang#126768#issuecomment-2192634762
These table entries have wrong number of columns so the "notes" field is missing from the rendered page. Fix by removing excess empty columns.
…ler-errors Various rustc_codegen_ssa cleanups
Add test for fn pointer duplication. I managed to make it fail when removing provenance checks in GVN. cc rust-lang#123670 r? `@oli-obk`
…docs, r=wesleywiser Update AST validation module docs Drive-by doc update for AST validation pass: - Syntax extensions are replaced by proc macros. - Add rationale for why AST validation pass need to be run post-expansion and why the pass is needed in the first place. This was discussed during this week's [rustc-dev-guide reading club](https://rust-lang.zulipchat.com/#narrow/stream/196385-t-compiler.2Fwg-rustc-dev-guide), and the rationale was explained by cc `@bjorn3.`
…atthewjasper Simplifications in match lowering A series of small simplifications and deduplications in the MIR lowering of patterns. r? `@matthewjasper`
…ive, r=oli-obk Add basic Serde serialization capabilities to Stable MIR This PR adds basic Serde serialization capabilities to Stable MIR. It is intentionally minimal (just wrapping all stable MIR types with a Serde `derive`), so that any important design decisions can be discussed before going further. A simple test is included with this PR to validate that JSON can actually be emitted. ## Notes When I wrapped the Stable MIR error types in `compiler/stable_mir/src/error.rs`, it caused test failures (though I'm not sure why) so I backed those out. ## Future Work So, this PR will support serializing basic stable MIR, but it _does not_ support serializing interned values beneath `Ty`s and `AllocId`s, etc... My current thinking about how to handle this is as follows: 1. Add new `visited_X` fields to the `Tables` struct for each interned category of interest. 2. As serialization is occuring, serialize interned values as usual _and_ also record the interned value we referenced in `visited_X`. (Possibly) In addition, if an interned value recursively references other interned values, record those interned values as well. 3. Teach the stable MIR `Context` how to access the `visited_X` values and expose them with wrappers in `stable_mir/src/lib.rs` to users (e.g. to serialize and/or further analyze them). ### Pros This approach does not commit to any specific serialization format regarding interned values or other more complex cases, which avoids us locking into any behaviors that may not be desired long-term. ### Cons The user will need to manually handle serializing interned values. ### Alternatives 1. We can directly provide access to the underlying `Tables` maps for interned values; the disadvantage of this approach is that it either requires extra processing for users to filter out to only use the values that they need _or_ users may serialize extra values that they don't need. The advantage is that the implementation is even simpler. The other pros/cons are similar to the above. 2. We can directly serialize interned values by expanding them in-place. The pro is that this may make some basic inputs easier to consume. However, the cons are that there will need to be special provisions for dealing with cyclical values on both the producer and consumer _and_ global values will possibly need to be de-duplicated on the consumer side.
…=notriddle Update browser-ui-test version to `0.18.0` Should help with rust-lang#126436. r? `@notriddle`
Switch back `non_local_definitions` lint to allow-by-default This PR switch back (again) the `non_local_definitions` lint to allow-by-default as T-lang is requesting some (major) changes in the lint inner workings in rust-lang#126768 (comment). This PR will need to be beta-backported, as the lint is currently warn-by-default in beta.
…ez,notriddle docs: check if the disambiguator matches its suffix Fixes rust-lang#126986 This PR makes it will not continue resolving when its disambiguator doesn't match the suffix format.
…r=lqd Fix Markdown tables in platform-support.md These table entries have wrong number of columns so the "notes" field is missing from the rendered page. Fix by removing excess empty columns.
… r=oli-obk Enable const casting for `f16` and `f128` I have an open PR to the Miri repo adding tests for this behavior rust-lang/miri#3688, but that unfortunately hits the ICE path here. The changes seem reasonably low risk that it might be okay to merge separately from the tests, and I tested the result locally against an older version of rust-lang/miri#3688. Cc `@RalfJung`
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…llaumeGomez Rollup of 10 pull requests Successful merges: - rust-lang#123237 (Various rustc_codegen_ssa cleanups) - rust-lang#123714 (Add test for fn pointer duplication.) - rust-lang#124091 (Update AST validation module docs) - rust-lang#126835 (Simplifications in match lowering) - rust-lang#126963 (Add basic Serde serialization capabilities to Stable MIR) - rust-lang#127010 (Update browser-ui-test version to `0.18.0`) - rust-lang#127015 (Switch back `non_local_definitions` lint to allow-by-default) - rust-lang#127016 (docs: check if the disambiguator matches its suffix) - rust-lang#127029 (Fix Markdown tables in platform-support.md) - rust-lang#127032 (Enable const casting for `f16` and `f128`) r? `@ghost` `@rustbot` modify labels: rollup
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Successful merges:
0.18.0
#127010 (Update browser-ui-test version to0.18.0
)non_local_definitions
lint to allow-by-default #127015 (Switch backnon_local_definitions
lint to allow-by-default)f16
andf128
#127032 (Enable const casting forf16
andf128
)r? @ghost
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