Correct default value for default-linker-libraries
This setting is false by default according to rustc code here: https://github.com/rust-lang/rust/blob/master/compiler/rustc_session/src/options.rs#L1236
I tested on a project and confirmed the behavior described. First, with no value, the `-nodefaultlibs` linker flag is present. Setting this to false has no effect, as well. The linker flag still appears. Setting it to true removes the linker flag as expected.
The above-mentioned change modified the output of thread-local.rs by
changing some variable names. Rather than assume things get put in %0,
we capture the variable so the test passes in both the old and new
version.
Remove some suspicious cast truncations
These truncations were added a long time ago, and as best I can tell without a perf justification. And with rust-lang/rust#110410 it has become perf-neutral to not truncate anymore. We worked hard for all these bits, let's use them.
Rollup of 7 pull requests
Successful merges:
- #110038 (Erase regions when confirming transmutability candidate)
- #110341 (rustdoc: stop passing a title to `replaceState` second argument)
- #110388 (Add a message for if an overflow occurs in `core::intrinsics::is_nonoverlapping`.)
- #110404 (fix clippy::toplevel_ref_arg and ::manual_map)
- #110421 (Spelling librustdoc)
- #110423 (Spelling srcdoc)
- #110433 (Windows: map a few more error codes to ErrorKind)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
Windows: map a few more error codes to ErrorKind
NotFound errors:
* `ERROR_INVALID_DRIVE`: The system cannot find the drive specified
* `ERROR_BAD_NETPATH`: The network path was not found
* `ERROR_BAD_NET_NAME`: The network name cannot be found.
InvalidFilename:
* `ERROR_BAD_PATHNAME`: The specified path is invalid.
Source: [System Error Codes (0-499)](https://learn.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-499-)
Spelling librustdoc
This is split from https://github.com/rust-lang/rust/pull/110392
There's one change to src/tools/rustdoc-gui/tester.js which feels like a reasonable thing to piggy-back here.
rustdoc: stop passing a title to `replaceState` second argument
As described on [MDN's replaceState page], this parameter is not currently used, and the empty string is "safe against future changes to the method."
[MDN's replaceState page]: https://developer.mozilla.org/en-US/docs/Web/API/History/replaceState
Alloc `hir::Lit` in an arena to remove the destructor from `Expr`
This allows allocating `Expr`s into a dropless arena, which is useful for using length prefixed thing slices in HIR, since these can only be allocated in the dropless arena and not in a typed arena.
Permit MIR inlining without #[inline]
I noticed that there are at least a handful of portable-simd functions that have no `#[inline]` but compile to an assign + return.
I locally benchmarked inlining thresholds between 0 and 50 in increments of 5, and 50 seems to be the best. Interesting. That didn't include check builds though, ~maybe perf will have something to say about that~.
Perf has little useful to say about this. We generally regress all the check builds, as best as I can tell, due to a number of small codegen changes in a particular hot function in the compiler. Probably this is because we've nudged the inlining outcomes all over, and uses of `#[inline(always)]`/`#[inline(never)]` might need to be adjusted.
NotFound errors:
* `ERROR_INVALID_DRIVE`: The system cannot find the drive specified
* `ERROR_BAD_NETPATH`: The network path was not found
* `ERROR_BAD_NET_NAME`: The network name cannot be found.
InvalidFilename:
* `ERROR_BAD_PATHNAME`: The specified path is invalid.
Clippy Book Chapter Updates Reborn: Macro Expansions
This PR adds a new chapter to the book: "Macro Expansions". There weren't big changes apart from grammar, re-phrasing and stylistic choices.
## Notes
- **Does not require any other chapter** to be merged before this
- To talk about the whole project, please use the tracking issue for the project #10597 (It also contains a timeline, discussions and more information)
changelog: Add a new "Macro Expansions" chapter to the book
r? `@flip1995`
Book: Improve type checking and lint passes chapters
- Adds the lint passes chapter to the index.
- Moves additional reading material for beginners to the front page of the development section.
- Clarify some details in `hir::Ty` vs `ty::Ty`.
`@blyxyas` I started reviewing the chapters that were already merged. Great work. I liked the additional reading chapter so much, that I moved it front and center. Other than that I only had some minor corrections to make. Please review.
r? `@llogiq`
changelog: none
