It's a full conversion, except in `DefKey::compute_stable_hash()` where
a `Symbol` now is converted to an `InternedString` before being hashed.
This was necessary to avoid test failures.
Check all files in `src/test` for `borrowck_graphviz_postflow`
This attribute causes DOT files to be generated in the top-level directory. It is intended to be used only temporarily and should never appear on master. This also tells git to ignore DOT files in the root or the `mir_dump` directory, which `-Z dump-mir` uses by default.
This will prevent #65071 from occurring again. It needs to be merged after #65629, otherwise `tidy` will start failing.
r? @Mark-Simulacrum
The `ConstProp` can cause many locals to be initialized to a constant
value and then never read from. `ConstProp` can also evaluate ZSTs into
constant values. Previously, many of these would be removed by other
parts of the MIR optimization pipeline. However, evaluating ZSTs
(especially `()`) into constant values defeated those parts of the
optimizer and so in a2e3ed5c05, I added a
hack to `ConstProp` that skips evaluating ZSTs to avoid that regression.
This commit changes `SimplifyLocals` so that it doesn't consider writes
of const values to a local to be a use of that local. In doing so,
`SimplifyLocals` is able to remove otherwise unused locals left behind
by other optimization passes (`ConstProp` in particular).
Rollup of 8 pull requests
Successful merges:
- #65314 (rustdoc: forward -Z options to rustc)
- #65592 (clarify const_prop ICE protection comment)
- #65603 (Avoid ICE when include! is used by stdin crate)
- #65614 (Improve error message for APIT with explicit generic arguments)
- #65629 (Remove `borrowck_graphviz_postflow` from test)
- #65633 (Remove leading :: from paths in doc examples)
- #65638 (Rename the default argument 'def' to 'default')
- #65639 (Fix parameter name in documentation)
Failed merges:
r? @ghost
Remove leading :: from paths in doc examples
Noted some pre-2018 path syntax in the doc examples, for example:
https://doc.rust-lang.org/std/process/fn.exit.html
```rust
fn main() {
::std::process::exit(match run_app() {
Ok(_) => 0,
...
```
Couldn't find an existing issue on this (then again, "::" makes for an annoying thing to search for) so if there is already something fixing this and/or there's a reason to not fix it, just close this PR.
(Also fixed indentation in the `process::exit()` docs)
Remove `borrowck_graphviz_postflow` from test
Resolves#65071 (again).
Sorry. I've added a commit hook to prevent this from happening in the future.
r? @petrochenkov
Avoid ICE when include! is used by stdin crate
This should hopefully also eliminate the ICE when using `include_bytes!`, `include_str!` and `#[doc(include = "...")]` with a stdio input.
I couldn't see a clear way to write a compile-fail test using compiletest with a stdio input, so I haven't written any tests for this change.
Fixes#63900
clarify const_prop ICE protection comment
This is based on discussion at https://github.com/rust-lang/rust/pull/64890/files#r334555787.
That said, why are function arguments the only unsized locals that could remain uninitialized? Couldn't we also fail to initialize some local but still go on with const_prop, and then hit a line that takes a reference to that? Cc @wesleywiser @oli-obk ; I don't know enough about const-prop to understand why this can happen only for function arguments.
~~The PR includes https://github.com/rust-lang/rust/pull/64890; the only new commit is 05e4e6ba0d5.~~
rustdoc: forward -Z options to rustc
Currently rustdoc does not forward `-Z` options to rustc when building
test executables. This makes impossible to use rustdoc to run test
samples when crate under test is instrumented with one of sanitizers
`-Zsanitizer=...`, since the final linking step will not include
sanitizer runtime library.
Forward `-Z` options to rustc to solve the issue.
Helps with #43031.
`TokenStream` used to be a complex type, but it is now just a newtype
around a `Lrc<Vec<TreeAndJoint>>`. Currently it uses custom encoding
that discards the `IsJoint` and custom decoding that adds `NonJoint`
back in for every token tree. This requires building intermediate
`Vec<TokenTree>`s.
This commit makes `TokenStream` derive `Rustc{En,De}codable`. This
simplifies the code, and avoids the creation of the intermediate
vectors, saving up to 3% on various benchmarks. It also changes the AST
JSON output in one test.
Remove unreachable unit tuple compare binop codegen
Closes#63906Fixes#63551
This is based on #63906 by @luigishat, who had trouble with rebasing his PR.
Avoid unnecessary arena allocations in `expand_pattern()`.
`expand_pattern()` has two callsites. One of them needs arena
allocation, but the other does not.
This commit moves the arena allocation out of the function. This avoids
the allocation of many 4 KiB page arena chunks that only hold a single
small allocation. It reduces the number of bytes allocated by up to 2%
for various benchmarks, albeit without only a very small improvement in
runtime.
This attribute causes DOT files to be generated in the top-level
directory. It is intended to be used only temporarily and should never
appear on master.
This will prevent #65071 from occurring again.
