Sort "implementations on foreign types" section in the sidebar
Fixes#71926.
We were sorting by the ID instead of sorting by the name. They're not in the same order as the implementations but I think it makes more sense this way considering this is what we do for the methods as well.
r? @kinnison
cc @rust-lang/rustdoc
Rework MIR drop tree lowering
This PR changes how drops are generated in MIR construction. This is the first half of the fix for #47949.
Rather than generating the drops for a given unwind/break/continue/return/generator drop path as soon as they are needed, the required drops are recorded and get generated later.
The motivation for this is
* It simplifies the caching scheme, because it's now possible to walk up the currently scheduled drop tree to recover state.
* The basic block order for MIR more closely resembles execution order.
This PR also:
* Highlights cleanup blocks in the graphviz MIR output.
* Removes some unnecessary drop flag assignments.
Fix disagreeement about CGU reuse and LTO
This commit fixes an issue where the codegen backend's selection of LTO
disagreed with what the codegen later thought was being done. Discovered
in #72006 we have a longstanding issue where if `-Clinker-plugin-lto` in
optimized mode is compiled incrementally it will always panic on the
second compilation. The underlying issue turned out to be that the
production of the original artifact determined that LTO should not be
done (because it's being postponed to the linker) but the CGU reuse
selection thought that LTO was done so it was trying to load pre-LTO
artifacts which were never generated.
The fix here is to ensure that the logic when generating code which
determines what kind of LTO is being done is shared amongst the CGU
reuse decision and the backend actually doing LTO. This means that
they'll both be in agreement about whether the previous compilation did
indeed produce incremental pre-LTO artifacts.
Closes#72006
This commit fixes an issue where the codegen backend's selection of LTO
disagreed with what the codegen later thought was being done. Discovered
in #72006 we have a longstanding issue where if `-Clinker-plugin-lto` in
optimized mode is compiled incrementally it will always panic on the
second compilation. The underlying issue turned out to be that the
production of the original artifact determined that LTO should not be
done (because it's being postponed to the linker) but the CGU reuse
selection thought that LTO was done so it was trying to load pre-LTO
artifacts which were never generated.
The fix here is to ensure that the logic when generating code which
determines what kind of LTO is being done is shared amongst the CGU
reuse decision and the backend actually doing LTO. This means that
they'll both be in agreement about whether the previous compilation did
indeed produce incremental pre-LTO artifacts.
Closes#72006
Allow `use super::*;` glob imports
changelog: Allow super::* glob imports
fixes#5554fixes#5569
A first pass at #5554 - this allows all `use super::*` to pass, which may or may not be desirable. The original issue was around allowing test modules to import their entire parent modules - I'm happy to modify this to do that instead, may just need some guidance on how to implement that (I played around a bit with #[cfg(test)] but from what I can gather, clippy itself isn't in test mode when running, even if the code in question is being checked for the test target).
Simplify the `tcx.alloc_map` API
This PR changes all functions that require manually locking the `alloc_map` to functions on `TyCtxt` that lock the map internally. In the same step we make the `TyCtxt::alloc_map` field private.
r? @RalfJung
rustllvm: Use .init_array rather than .ctors
LLVM TargetMachines default to using the (now-legacy) .ctors
representation of init functions. Mixing .ctors and .init_array
representations can cause issues when linking with lld.
This happens in practice for:
* Our profiling runtime which is currently implicitly built with
.init_array since it is built by clang, which sets this field.
* External C/C++ code that may be linked into the same process.
Fixes: #71233
