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This commit adds a dedicated mode to compiletest for running rustfix tests,
adding a new `src/test/rustfix` directory which will execute all tests as a
"rustfix" test, namely requiring that a `*.fixed` is next to the main file which
is the result of the rustfix project's application of fixes.
The `rustfix` crate is pulled in to actually perform the fixing, and the rustfix
compiletest mode will assert a few properties about the fixing:
* The expected fixed output must be the same as rustc's output suggestions
applied to the original code.
* The fixed code must compile successfully
* The fixed code must have no further diagnostics emitted about it
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Uses branch from <https://github.com/rust-lang-nursery/rustfix/pull/63>
until we publish a new release.
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This is the first small step towards testing auto-fixable compiler
suggestions using compiletest. Currently, it only checks if next to a
UI test there also happens to a `*.rs.fixed` file, and then uses rustfix
(added as external crate) on the original file, and asserts that it
produces the fixed version.
To show that this works, I've included one such test. I picked this test
case at random (and because it was simple) -- It is not relevant to the
2018 edition. Indeed, in the near future, we want to be able to restrict
rustfix to edition-lints, so this test cast might go away soon.
In case you still think this is somewhat feature-complete, here's a
quick list of things currently missing that I want to add before telling
people they can use this:
- [ ] Make this an actual compiletest mode, with `test [fix] …` output
and everything
- [ ] Assert that fixed files still compile
- [ ] Assert that fixed files produce no (or a known set of) diagnostics
output
- [ ] Update `update-references.sh` to support rustfix
- [ ] Use a published version of rustfix (i.e.: publish a new version
rustfix that exposes a useful API for this)
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a mir-opt test.
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compiletest: detect non-ICE compiler panics
Fixes #49888, but will be blocked by revealing #49889.
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Fixes #48878
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`foo.nll.stderr`
This allows easy revision of the update-references.sh script (included
here) so that it can update the expected output for nll rather than
stderr. It also reminds the rustc developer via the filename that they
are looking at output generated under comapre-mode=nll.
One could argue that there is still a problem with the strategy encoded here:
if we reach a scenario where a change to the compiler brings the output
under AST and NLL modes back into sync, this code will continue to still
generate output to distinct `foo.stderr` and `foo.nll.stderr` files, and
will continue to copy those two files back to corresponding distinct
files in the source tree, even if the *content* of the two files is now the
same.
* Arguably the "right thing" to do in that case is to remove the
`foo.nll.stderr` file entirely.
* However, I think the real answer is that we will probably want to
double-check such cases by hand anyway. We should be regularly
double-checking the diffs between `foo.stderr` and
`foo.nll.stderr`, and if we see a zero-diff case, then we should
evaluate whether that is correct, and if so, remove the file by
hand.)
* In any case, I think the default behavior encoded here (or at
least *intended* to be encoded here) is superior to the
alternative of *only* generating a `foo.nll.stderr` file if one
already existed in the source tree at the time that `compiletest`
was invoked (and otherwise unconditionally generating a
`foo.stderr` file, as was the behavior prior to this commit),
because that alternative is more likely to cause rustc developers
to overwrite a `foo.stderr` file with the stderr output from a
compare-mode=nll run, which will then break the *normal*
`compiletest` run and probably be much more confusing for the
average rustc developer.
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E.g. when running with `--compare-mode=nll`, then each test line will
look like e.g.:
```
test [ui (nll)] ui/issue-10969.rs ... ok
```
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prep work for using timely dataflow with NLL
Two major changes:
**Two-phase borrows are overhauled.** We no longer have two bits per borrow. Instead, we track -- for each borrow -- an (optional) "activation point". Then, for each point P where the borrow is in scope, we check where P falls relative to the activation point. If P is between the reservation point and the activation point, then this is the "reservation" phase of the borrow, else the borrow is considered active. This is simpler and means that the dataflow doesn't have to care about 2-phase at all, at last not yet.
**We no longer support using the MIR borrow checker without NLL.** It is going to be increasingly untenable to support lexical mode as we go forward, I think, and also of increasingly little value. This also exposed a few bugs in NLL mode due to increased testing.
r? @pnkfelix
cc @bobtwinkles
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Add compiletest `--compare-mode nll` option
Before implementing the tidy stuff, I'd appreciate if someone reviews the changes so far.
This is my first non-trivial pull request, so I could really use some feedback. :)
closes #48879.
r? @nikomatsakis
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up to date
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are missing
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This commit is an implementation of adding custom sections to wasm artifacts in
rustc. The intention here is to expose the ability of the wasm binary format to
contain custom sections with arbitrary user-defined data. Currently neither our
version of LLVM nor LLD supports this so the implementation is currently custom
to rustc itself.
The implementation here is to attach a `#[wasm_custom_section = "foo"]`
attribute to any `const` which has a type like `[u8; N]`. Other types of
constants aren't supported yet but may be added one day! This should hopefully
be enough to get off the ground with *some* custom section support.
The current semantics are that any constant tagged with `#[wasm_custom_section]`
section will be *appended* to the corresponding section in the final output wasm
artifact (and this affects dependencies linked in as well, not just the final
crate). This means that whatever is interpreting the contents must be able to
interpret binary-concatenated sections (or each constant needs to be in its own
custom section).
To test this change the existing `run-make` test suite was moved to a
`run-make-fulldeps` folder and a new `run-make` test suite was added which
applies to all targets by default. This test suite currently only has one test
which only runs for the wasm target (using a node.js script to use `WebAssembly`
in JS to parse the wasm output).
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Make compiletest do exact matching on triples
This avoids the issues of the previous substring matching, ensuring `ARCH_TABLE` and `OS_TABLE` will no longer contain redundant entries. Fixes #48893.
r? @rkruppe
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Allow test target to pass without installing
explicitly pass -L target-lib to rustdoc
on OpenBSD, without it, it fails on several tests with:
```
error[E0463]: can't find crate for `std`
```
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This reverts commit be73a1f963e7830de2dbfbea6b362673ab7e6ded.
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This avoids the issues of the previous substring matching, ensuring
`ARCH_TABLE` and `OS_TABLE` will no longer contain redundant entries.
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This reverts commit 16ac85ce4dce1e185f2e6ce27df3833e07a9e502.
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explicitly pass -L target-lib to rustdoc
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MIPS testsuite fixes
This PR adjusts various bits in the testsuite so that more stuff passes on mips*.
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When executing run-make tests we run a risk of leaking the `MAKEFLAGS`
environment variable if `./x.py` itself was called from `make` (aka `make check
-j3` as the OSX bots do). We may then leak accidentally fds into the child
process and trick it into thinking it's got a jobserver!
Hopefully addresses [this] spurious failure
[this]: https://github.com/rust-lang/rust/pull/48295#issuecomment-372134717
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Don't bother distinguishing between big end little endian targets.
There are currently no tests which need this.
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into update-cargo
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Drop rustc-serialize, add winapi 0.3 and Serde!
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Update env_logger to 0.5.4
It looks like this cuts down on the number of dependencies in env_logger and
notably cuts out a difference between a shared dependency of rls/cargo. My goal
here is to ensure that when we compile the RLS/Cargo on CI we only compile Cargo
once, and this is one step towards that!
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It looks like this cuts down on the number of dependencies in env_logger and
notably cuts out a difference between a shared dependency of rls/cargo. My goal
here is to ensure that when we compile the RLS/Cargo on CI we only compile Cargo
once, and this is one step towards that!
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Handle gdb command failure gracefully in compiletest
Previously, if the gdb command was available, but threw an error, compiletest would panic. This is obviously not good. Now, gdb is treated as missing if calling `gdb --version` does not output anything on stdout.
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