Emit getelementptr inbounds nuw for pointer::add()
Lower pointer::add (via intrinsic::offset with unsigned offset) to getelementptr inbounds nuw on LLVM versions that support it. This lets LLVM make use of the pre-condition that the offset addition does not wrap in an unsigned sense. Together with inbounds, this also implies that the offset is non-negative.
Fixes https://github.com/rust-lang/rust/issues/137217.
avoid `compiler_for` for dist tools and force the current compiler
Using `compiler_for` in dist steps was causing to install stage1 tools into the dist tarballs, which doesn't match with the stage2 compiler.
Fixes https://github.com/rust-lang/rust/issues/137469
FIx `sym` -> `syn` typo in tail-expr-drop-order type opt-out
The #131326 PR attempts to reduce some false positives for the `tail_expr_drop_order` lint by hard-coding some common ecosystem crate names. Specifically, I believe it attempts to opt out the drop impls from `syn` which only exist as optimizations.
However, this was typo'd like "sym", which is a crate that has been [yanked](https://crates.io/crates/sym) (lol). This PR fixes that.
cc `@dingxiangfei2009` `@nikomatsakis` -- did I mistake this? Was this meant to be a different crate?
`@bors` rollup
Fix rustdoc test directives that were accidentally ignored 🧐
Replace "// `@"` with "//@ ", and fix the tests so they actually pass, after directives are checked.
~~Only the first commit is mandatory, other two are small drive-bys.~~
intrinsics: unify rint, roundeven, nearbyint in a single round_ties_even intrinsic
LLVM has three intrinsics here that all do the same thing (when used in the default FP environment). There's no reason Rust needs to copy that historically-grown mess -- let's just have one intrinsic and leave it up to the LLVM backend to decide how to lower that.
Suggested by `@hanna-kruppe` in https://github.com/rust-lang/rust/issues/136459; Cc `@tgross35`
try-job: test-various
Misc. `rustc_codegen_ssa` cleanups 🧹
Just a bunch of stuff I found while reading the crate's code.
Each commit can stand on its own.
Maybe r? `@Noratrieb` because I saw you did some similar cleanups on these files a while ago? (feel free to re-assign, I'm just guessing)
vectorcall ABI: require SSE2
According to the official docs at https://learn.microsoft.com/en-us/cpp/cpp/vectorcall, SSE2 is required for this ABI. Add a check that enforces this.
I put this together with the other checks ensuring the target features required for a function are present... however, since the ABI is known pre-monomorphization, it would be possible to do this check earlier, which would have the advantage of checking even in `cargo check`. It would have the disadvantage of spreading this code in yet more places.
The first commit just does a little refactoring of the mono-time ABI check to make it easier to add the new check.
Cc `@workingjubilee`
try-job: dist-i586-gnu-i586-i686-musl
When running `cargo codegen` the `crates/parser/test_data/generated/runner.rs` file is only updated when some file in `crates/parser/test_data/inline` changes. However this is not sufficient in all cases
Rollup of 9 pull requests
Successful merges:
- #135354 ([Debuginfo] Add MSVC Synthetic and Summary providers to LLDB)
- #136826 (Replace mem::zeroed with mem::MaybeUninit::uninit for large struct in Unix)
- #137194 (More const {} init in thread_local)
- #137334 (Greatly simplify lifetime captures in edition 2024)
- #137382 (bootstrap: add doc for vendor build step)
- #137423 (Improve a bit HIR pretty printer)
- #137435 (Fix "missing match arm body" suggestion involving `!`)
- #137448 (Fix bugs due to unhandled `ControlFlow` in compiler)
- #137458 (Fix missing self subst when rendering `impl Fn*<T>` with no output type)
r? `@ghost`
`@rustbot` modify labels: rollup
