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This commit replaces many usages of `File::open` and reading or writing
with `fs::read_to_string`, `fs::read` and `fs::write`. This reduces code
complexity, and will improve performance for most reads, since the
functions allocate the buffer to be the size of the file.
I believe that this commit will not impact behavior in any way, so some
matches will check the error kind in case the file was not valid UTF-8.
Some of these cases may not actually care about the error.
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Utilize `?` instead of `return None`.
None
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use String::from() instead of format!() macro to construct Strings.
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The enum debuginfo patch includes a legacy mode that is used when
building against LLVM 5 and LLVM 6. The main enum debuginfo tests
have been updated to rely on the new approach and a new-enough gdb.
This patch makes a copy of these tests so that the fallback mode will
continue to be tested.
Note that nil-enum.rs is not copied; it seemed not to provide enough
value to bother.
A new header directive is added, "ignore-llvm-version". I will send a
patch to update the rustc documentation once this lands.
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Run both lldb and gdb tests
Currently lldb tests are run only on macOS, and gdb tests are only run
elsewhere. This patch changes this to run tests depending on what is
available.
One test is changed, as it was previously marked as failing on macOS,
whereas really it is a generic failure with lldb.
Closes #54721
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This commit changes the NLL compare mode to pass `-Z borrowck=migrate`
rather than `-Z borrowck=nll` to better test what will be deployed. It
does not include the test output updates, as separation of these commits
makes reviewing simpler.
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Currently lldb tests are run only on macOS, and gdb tests are only run
elsewhere. This patch changes this to run tests depending on what is
available.
One test is changed, as it was previously marked as failing on macOS,
whereas really it is a generic failure with lldb.
Closes #54721
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If the rust-enabled lldb was built, then use it when running the
debuginfo tests. Updating the lldb submodule was necessary as this
needed a way to differentiate the rust-enabled lldb, so I added a line
to the --version output.
This adds compiletest commands to differentiate between the
rust-enabled and non-rust-enabled lldb, as is already done for gdb. A
new "rust-lldb" header directive is also added, but not used in this
patch; I plan to use it in #54004.
This updates all the tests.
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Compute Android gdb version in compiletest
compiletest has special code for running gdb for Android targets. In
particular it computes a different path to gdb. However, this gdb is
not used for the version test, which results in some tests being run
when they should not be. You can see this in #54004.
This patch moves the special case to analyze_gdb and a new helper
function to decide whether the case applies. This causes the version
check to work properly.
Note that the bulk of the runtest.rs change is just reindentation
caused by moving from a "match" to an "if" -- but there is a (small)
change buried in there.
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Include path in stamp hash for debuginfo tests
The debuginfo tests are exposed to the environment in a couple of
ways: the path to the gdb executable matters, as does the Python path
used when loading lldb.
This patch incorporates these paths into the hash that is written to
the stamp file, so that changing the path will cause the tests to be
re-run.
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compiletest has special code for running gdb for Android targets. In
particular it computes a different path to gdb. However, this gdb is
not used for the version test, which results in some tests being run
when they should not be. You can see this in #54004.
This patch moves the special case to analyze_gdb and a new helper
function to decide whether the case applies. This causes the version
check to work properly.
Note that the bulk of the runtest.rs change is just reindentation
caused by moving from a "match" to an "if" -- but there is a (small)
change buried in there.
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Track whether module declarations are inline (fixes #12590)
To track whether module declarations are inline I added a field `inline: bool` to `ast::Mod`. The main use case is for pretty to know whether it should render the items associated with the module, but perhaps there are use cases for this information to not be forgotten in the AST.
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The debuginfo tests are exposed to the environment in a couple of
ways: the path to the gdb executable matters, as does the Python path
used when loading lldb.
This patch incorporates these paths into the hash that is written to
the stamp file, so that changing the path will cause the tests to be
re-run.
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(It seems only `compile-fail-fulldeps/` exercises this functionality,
unfortunately.)
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`run_{rpass,rfail,cfail}_test`.
(Also, maybe we should revise the names to make it clear that sometimes "cfail" means "cpass"...)
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(I did not notice earlier that `ParseFail` delegates to `fn run_cfail_test`.)
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Namely, this adds support for:
* `// dont-check-compiler-stdout`, and
* `// dont-check-compiler-stderr`.
Obviously almost all ui tests wont want to opt into these, since the whole point
of a ui test is to check the compiler ui. However, since this PR is converting
run-pass into (another set of) ui tests, these header options make sense in that
context.
(Also this puts us into a better position for eventually turning
*every* test suite into a ui test suite, by making ui-ness the default
and forcing tests to opt out explicitly.)
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(just like how they behaved under previous run-pass semantics)
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*have* to.
This allows us to test expansion of files that use `mod foo;` syntax.
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or "".into()
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This commit adds a normalization for line and column numbers in stderr
files where the line/col is from the source directory rather than
the test itself - thereby removing the need to update tests as
compiler source changes.
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debug_assert to ensure that from_raw_parts is only used properly aligned
This does not help nearly as much as I would hope because everybody uses the distributed libstd which is compiled without debug assertions. For this reason, I am not sure if this is even worth it. OTOH, this would have caught the misalignment fixed by https://github.com/rust-lang/rust/issues/42789 *if* there had been any tests actually using ZSTs with alignment >1 (we have a CI runner which has debug assertions in libstd enabled), and it seems to currently [fail in the rg testsuite](https://ci.appveyor.com/project/rust-lang/rust/build/1.0.8403/job/v7dfdcgn8ay5j6sb). So maybe it is worth it, after all.
I have seen the attribute `#[rustc_inherit_overflow_checks]` in some places, does that make it so that the *caller's* debug status is relevant? Is there a similar attribute for `debug_assert!`? That could even subsume `rustc_inherit_overflow_checks`: Something like `rustc_inherit_debug_flag` could affect *all* places that change the generated code depending on whether we are in debug or release mode. In fact, given that we have to keep around the MIR for generic functions anyway, is there ever a reason *not* to handle the debug flag that way? I guess currently we apply debug flags like `cfg` so this is dropped early during the MIR pipeline?
EDIT: I learned from @eddyb that because of how `debug_assert!` works, this is not realistic. Well, we could still have it for the rustc CI runs and then maybe, eventually, when libstd gets compiled client-side and there is both a debug and a release build... then this will also benefit users.^^
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Preliminary work for incremental ThinLTO (CGU name edition)
Bring back the first half of #52266 but hopefully without the performance regression.
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Make sure rlimit is only ever increased
`libc::setrlimit` will fail if we try to set the rlimit to a value lower than it is currently, so make sure we're never trying to do this. Fixes #52801.
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Previously, even if no expected errors were supplied, if a test execution failed
then supplied error patterns would not be checked. This commit modifies the
conditional that determines whether error patterns or expected errors are checked
to remedy this.
Further, this commit modifies the error pattern checking logic so that each pattern
is checked against all lines of the string. This is required for UI tests as the
stderr is in JSON format - all on one line - so in the previous implementation when the
first pattern was found on the first line (which was actually the entire error) then
no other patterns would be found on subsequent lines (as there weren't any).
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Rollup of 30 pull requests
Successful merges:
- #52340 (Document From trait implementations for OsStr, OsString, CString, and CStr)
- #52628 (Cleanup some rustdoc code)
- #52732 (Remove unstable and deprecated APIs)
- #52745 (Update clippy to latest master)
- #52771 (Clarify thread::park semantics)
- #52778 (Improve readability of serialize.rs)
- #52810 ([NLL] Don't make "fake" match variables mutable)
- #52821 (pretty print for std::collections::vecdeque)
- #52822 (Fix From<LocalWaker>)
- #52824 (Fix -Wpessimizing-move warnings in rustllvm/PassWrapper)
- #52825 (Make sure #47772 does not regress)
- #52831 (remove references to AUTHORS.txt file)
- #52842 (update comment)
- #52846 (Add timeout to use of `curl` in bootstrap.py.)
- #52851 (Make the tool_lints actually usable)
- #52853 (Improve bootstrap help on stages)
- #52859 (Use Vec::extend in SmallVec::extend when applicable)
- #52861 (Add targets for HermitCore (https://hermitcore.org) to the Rust compiler and port libstd to it.)
- #52867 (releases.md: fix 2 typos)
- #52870 (Implement Unpin for FutureObj and LocalFutureObj)
- #52876 (run-pass/const-endianness: negate before to_le())
- #52878 (Fix wrong issue number in the test name)
- #52883 (Include lifetime in mutability suggestion in NLL messages)
- #52888 (Use suggestions for shell format arguments)
- #52904 (NLL: sort diagnostics by span)
- #52905 (Fix a typo in unsize.rs)
- #52907 (NLL: On "cannot move out of type" error, print original before rewrite)
- #52914 (Only run the sparc-abi test on sparc)
- #52918 (Backport 1.27.2 release notes)
- #52929 (Update compatibility note for 1.28.0 to be correct)
Failed merges:
r? @ghost
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Recent changes to lints disallowed lints from being emitted against code located
in foreign macros, except for future-incompatible lints. For a future
incompatible lint, however, the automatic suggestions may not be applicable!
This commit updates this code path to force all applicability suggestions made
to foreign macros to never be `MachineApplicable`. This should avoid rustfix
actually attempting fixing these suggestions, causing non-compiling code to be
produced.
Closes rust-lang/cargo#5799
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port libstd to it.
As a start, the port uses the simplest possible configuration (no jemalloc, abort on panic)
and makes use of existing Unix-specific code wherever possible.
It adds targets for x86_64 (current main HermitCore platform) and aarch64 (HermitCore platform
under development).
Together with the patches to "liblibc" and "llvm", this enables HermitCore applications to be
written in Rust.
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Should hopefully bring in a few more `cargo fix`-related fixes.
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