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Pretty print json in ui tests
I found the json output in one line to not be useful for reviewing
r? @petrochenkov
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This is intended to prevent the spurious OOM error from
run-pass/rustc-rust-log.rs, by skipping the output in the middle when the
size is over 416 KB, so that the log output will not be overwhelmed.
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Shorten paths to auxiliary files created by tests
I'm hitting issues with long file paths to object files created by the test suite, similar to https://github.com/rust-lang/rust/issues/45103#issuecomment-335622075.
If we look at the object file path in https://github.com/rust-lang/rust/issues/45103 we can see that the patch contains of few components:
```
specialization-cross-crate-defaults.stage2-x86_64-pc-windows-gnu.run-pass.libaux\specialization_cross_crate_defaults.specialization_cross_crate_defaults0.rust-cgu.o
```
=>
1. specialization-cross-crate-defaults // test name, required
2. stage2 // stage disambiguator, required
3. x86_64-pc-windows-gnu // target disambiguator, required
4. run-pass // mode disambiguator, rarely required
5. libaux // suffix, can be shortened
6. specialization_cross_crate_defaults // required, there may be several libraries in the directory
7. specialization_cross_crate_defaults0 // codegen unit name, can be shortened?
8. rust-cgu // suffix, can be shortened?
9. o // object file extension
This patch addresses items `4`, `5` and `8`.
`libaux` is shortened to `aux`, `rust-cgu` is shortened to `rcgu`, mode disambiguator is omitted unless it's necessary (for pretty-printing and debuginfo tests, see https://github.com/rust-lang/rust/pull/24537/commits/38d26d811a44ba93637c84ce77a58af88c47f0ac)
I haven't touched names of codegen units though (`specialization_cross_crate_defaults0`).
Is it useful for them to have descriptive names including the crate name, as opposed to just `0` or `cgu0` or something?
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Update libc and some fixes for x86_64-unknown-linux-gnux32
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Issue 44986/fix windows ui path
#44968
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compiletest/runtest: format ErrorKind with Display
The strings are nouns for the most part, so we give ErrorKind::Help a
more sensible string. This reduces quote hiccups in failure output.
unexpected "error": '...'
↓
unexpected error: '...'
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Modify MIR testing to require consecutive lines
MIR testing now requires that lines be consecutive. To achive this,
instead of collecting the expected mir as a string, it is now wrapped in
an `ExpectedLine` enum, that is either `Elision` or `Text(T)` where `T:
AsRef<str>`. `Text` lines must be matched in order, unless separated by
`Elision` lines. Elision occurs lazily, that is, an Elision will skip
as few lines as possible.
To add a new elision marker. Put a comment containing only "..." and
whitespace in any MIR testing block. Like so:
```
// fn write_42(_1: *mut i32) -> bool {
// ...
// bb0: {
// Validate(Acquire, [_1: *mut i32]);
// Validate(Release, [_1: *mut i32]);
// ...
// return;
// }
// }
```
Right now, all input before the line right after `// START` is elided,
and all input after the line right before `// END` is also not tested.
Many tests need to be updated. That will follow in the next commit.
cc #45153
r? @nikomatsakis
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r=nikomatsakis
incr.comp.: Bring back output of -Zincremental-info.
This got kind lost during the transition to red/green.
I also switched back from `eprintln!()` to `println!()` since the former never actually produced any output. I suspect this has to do with `libterm` somehow monopolizing `stderr`.
r? @nikomatsakis
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The strings are nouns for the most part, so we give ErrorKind::Help a
more sensible string. This reduces quote hiccups in failure output.
unexpected "error": '...'
↓
unexpected error: '...'
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Mir testing now requires that lines be continuous. To achive this,
instead of collecting the expected mir as a string, it is now wrapped in
an `ExpectedLine` enum, that is either `Elision` or `Text(T)` where `T:
AsRef<str>`. `Text` lines must be matched in order, unless separated by
`Elision` lines. Matches occur greedily, that is, an Elision will skip
as few lines as possible.
To add a new elision marker. Put a comment containing only "..." and
whitespace in any MIR testing block. Like so:
```
// fn write_42(_1: *mut i32) -> bool {
// ...
// bb0: {
// Validate(Acquire, [_1: *mut i32]);
// Validate(Release, [_1: *mut i32]);
// ...
// return;
// }
// }
```
Right now, all input before the line right after `// START` is elided,
and all input after the line right before `// END` is also not tested.
Many tests need to be updated. That will follow in the next commit.
cc #45153
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Add pretty printer files into test execution time-stamping
Move find_rust_src_path() as a method for Config
Move find_rust_src_path() as a method for Config
Call find_rust_src_path() from Config
Move find_rust_src_path() from common.rs to header.rs
Add pretty printer files as relevant files to get up_to_date information
Remove dead code
Add two pretty printer files to keep a close watch on
Move find_rust_src_path() as a method for Config
Move find_rust_src_path() as a method for Config
Call find_rust_src_path() from Config
Move find_rust_src_path() from common.rs to header.rs
Remove dead code
Add two pretty printer files to keep a close watch on
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Like #43008 (f668999), but _much more aggressive_.
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In preparation for incremental compilation this commit refactors the lint
handling infrastructure in the compiler to be more "eager" and overall more
incremental-friendly. Many passes of the compiler can emit lints at various
points but before this commit all lints were buffered in a table to be emitted
at the very end of compilation. This commit changes these lints to be emitted
immediately during compilation using pre-calculated lint level-related data
structures.
Linting today is split into two phases, one set of "early" lints run on the
`syntax::ast` and a "late" set of lints run on the HIR. This commit moves the
"early" lints to running as late as possible in compilation, just before HIR
lowering. This notably means that we're catching resolve-related lints just
before HIR lowering. The early linting remains a pass very similar to how it was
before, maintaining context of the current lint level as it walks the tree.
Post-HIR, however, linting is structured as a method on the `TyCtxt` which
transitively executes a query to calculate lint levels. Each request to lint on
a `TyCtxt` will query the entire crate's 'lint level data structure' and then go
from there about whether the lint should be emitted or not.
The query depends on the entire HIR crate but should be very quick to calculate
(just a quick walk of the HIR) and the red-green system should notice that the
lint level data structure rarely changes, and should hopefully preserve
incrementality.
Overall this resulted in a pretty big change to the test suite now that lints
are emitted much earlier in compilation (on-demand vs only at the end). This in
turn necessitated the addition of many `#![allow(warnings)]` directives
throughout the compile-fail test suite and a number of updates to the UI test
suite.
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For most tests, rustdoc isn't needed, so avoid building it.
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Prepare for `normalize-std???` which will share the same logic.
Added `ignore-32bit` and `ignore-64bit`.
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fixed some clippy warnings in compiletest
This is mainly readability stuff. Whenever the `clone_ref` lint asked me to clone the dereferenced object, I removed the `.clone()` instead, relying on the fact that it has worked so far and the immutable borrow ensures that the value won't change.
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add `allow_fail` test attribute
This change allows the user to add an `#[allow_fail]` attribute to
tests that will cause the test to compile & run, but if the test fails
it will not cause the entire test run to fail. The test output will
show the failure, but in yellow instead of red, and also indicate that
it was an allowed failure.
Here is an example of the output: http://imgur.com/a/wt7ga
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This change allows the user to add an `#[allow_fail]` attribute to
tests that will cause the test to compile & run, but if the test fails
it will not cause the entire test run to fail. The test output will
show the failure, but in yellow instead of red, and also indicate that
it was an allowed failure.
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