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the TyCtxt instead
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Because it complicates lint implementation greatly.
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We already use a mix of `Literal` and `Lit`. The latter is better
because it is shorter without causing any ambiguity.
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Previously, rustdoc would unconditionally report the version that *rustc* was compiled with.
That showed things like `nightly-2022-10-30`, which wasn't right, since this was a `dev` build compiled from source.
Fix it by changing `rustc_driver::version` to a macro expanded at invocation time.
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improve `filesearch::get_or_default_sysroot`
`fn get_or_default_sysroot` is now improved and used in `miri` and `clippy`, and tests are still passing as they should. So we no longer need to implement custom workarounds/hacks to find sysroot in tools like miri/clippy.
Resolves https://github.com/rust-lang/rust/issues/98832
re-opened from #103581
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Signed-off-by: Onur Özkan <work@onurozkan.dev>
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Track where diagnostics were created.
This implements the `-Ztrack-diagnostics` flag, which uses `#[track_caller]` to track where diagnostics are created. It is meant as a debugging tool much like `-Ztreat-err-as-bug`.
For example, the following code...
```rust
struct A;
struct B;
fn main(){
let _: A = B;
}
```
...now emits the following error message:
```
error[E0308]: mismatched types
--> src\main.rs:5:16
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5 | let _: A = B;
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-Ztrack-diagnostics: created at compiler\rustc_infer\src\infer\error_reporting\mod.rs:2275:31
```
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spastorino noticed some silly expressions like `item_id.def_id.def_id`.
This commit renames several `def_id: OwnerId` fields as `owner_id`, so
those expressions become `item_id.owner_id.def_id`.
`item_id.owner_id.local_def_id` would be even clearer, but the use of
`def_id` for values of type `LocalDefId` is *very* widespread, so I left
that alone.
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And a couple of other naming tweaks
Related to https://github.com/rust-lang/rust/issues/48054
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move hir typeck into separate crate
second part https://github.com/rust-lang/compiler-team/issues/529
I avoided pretty much anything that wasn't just a simple move + path adjustment. Left fixmes for methods which are at an odd place
r? `@compiler-errors`
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It took me a while to work this out.
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- Make the structure of the two variants more similar.
- Add some comments.
- Move various conditional `use` items inside the function that uses
them.
- Inline some closures.
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This avoids the need for a degenerate `Lrc::get_mut` call.
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It has a single call site.
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It has a single call site, and removing it slightly improves the
confusing tangle of nested closures present at startup.
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It's no longer used.
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The compiler currently has `-Ztime` and `-Ztime-passes`. I've used
`-Ztime-passes` for years but only recently learned about `-Ztime`.
What's the difference? Let's look at the `-Zhelp` output:
```
-Z time=val -- measure time of rustc processes (default: no)
-Z time-passes=val -- measure time of each rustc pass (default: no)
```
The `-Ztime-passes` description is clear, but the `-Ztime` one is less so.
Sounds like it measures the time for the entire process?
No. The real difference is that `-Ztime-passes` prints out info about passes,
and `-Ztime` does the same, but only for a subset of those passes. More
specifically, there is a distinction in the profiling code between a "verbose
generic activity" and an "extra verbose generic activity". `-Ztime-passes`
prints both kinds, while `-Ztime` only prints the first one. (It took me
a close reading of the source code to determine this difference.)
In practice this distinction has low value. Perhaps in the past the "extra
verbose" output was more voluminous, but now that we only print stats for a
pass if it exceeds 5ms or alters the RSS, `-Ztime-passes` is less spammy. Also,
a lot of the "extra verbose" cases are for individual lint passes, and you need
to also use `-Zno-interleave-lints` to see those anyway.
Therefore, this commit removes `-Ztime` and the associated machinery. One thing
to note is that the existing "extra verbose" activities all have an extra
string argument, so the commit adds the ability to accept an extra argument to
the "verbose" activities.
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Sometimes it can happen that invalid code like a TyKind::Error makes
its way through the compiler without triggering any errors (this is
always a bug in rustc but bugs do happen sometimes :)). These ICEs
will manifest in the backend like as cg_llvm not being able to get
the layout of `[type error]`, which makes it hard to debug. By flushing
before codegen, we display all the delayed bugs, making it easier to
trace it to the root of the problem.
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Remove support for legacy PM
This removes support for optimizing with LLVM's legacy pass manager, as well as the unstable `-Znew-llvm-pass-manager` option. We have been defaulting to the new PM since LLVM 13 (except for s390x that waited for 14), and LLVM 15 removed support altogether. The only place we still use the legacy PM is for writing the output file, just like `llc` does.
cc #74705
r? ``@nikic``
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fix a ui test
use `into`
fix clippy ui test
fix a run-make-fulldeps test
implement `IntoQueryParam<DefId>` for `OwnerId`
use `OwnerId` for more queries
change the type of `ParentOwnerIterator::Item` to `(OwnerId, OwnerNode)`
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On later stages, the feature is already stable.
Result of running:
rg -l "feature.let_else" compiler/ src/librustdoc/ library/ | xargs sed -s -i "s#\\[feature.let_else#\\[cfg_attr\\(bootstrap, feature\\(let_else\\)#"
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Track PGO profiles in depinfo
This PR makes sure that PGO profiles (`-Cprofile-use` and `-Cprofile-sample-use`) are tracked in depinfo, so that when they change, the compilation session will be invalidated.
This approach was discussed on [Zulip](https://rust-lang.zulipchat.com/#narrow/stream/246057-t-cargo/topic/Tracking.20PGO.20profile.20files.20in.20cargo).
I tried it locally and it seems that the code is recompiled just with this change, and https://github.com/rust-lang/rust/pull/100413 is not even needed. But it's possible that not everything required is recompiled, so we will probably want to land both changes.
Another approach to implement this could be to store the PGO profiles in `sess.parse_sess.file_depinfo` when the session is being created, but then the paths would have to be converted to a string and then to a symbol, which seemed unnecessarily complicated.
CC `@michaelwoerister`
r? `@Eh2406`
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Improve HIR stats
#100398 improve the AST stats collection done by `-Zhir-stats`. This PR does the same for HIR stats collection.
r? `@davidtwco`
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rustc_target: Add a compatibility layer to separate internal and user-facing linker flavors
I want to do some refactorings in `rustc_target` - merge `lld_flavor` and `linker_is_gnu` into `linker_flavor`, support combination gcc+lld (https://github.com/rust-lang/rust/pull/96827).
This PR adds some compatibility infra that makes that possible without making any changes to user-facing interfaces - `-Clinker-flavor` values and json target specs. (For json target specs this infra may eventually go away since they are not very stable.)
The second commit does some light refactoring of internal linker flavors (applies changes from https://github.com/petrochenkov/rust/commit/53eca42973b7e379b9fa0469c33f08680b57c35f that don't require mass-editing target specs).
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by module
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Remove one unstable user-facing linker flavor (l4-bender)
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This PR will fix some typos detected by [typos].
I only picked the ones I was sure were spelling errors to fix, mostly in
the comments.
[typos]: https://github.com/crate-ci/typos
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