Commit Graph

410 Commits

Author SHA1 Message Date
Reid Kleckner 9b4e828678 [lit] Work around Windows MSys command line tokenization bug
Summary:
This will allow us to revert LLD r284768, which added spaces to get MSys
echo to print what we want.

Reviewers: ruiu, inglorion, rafael

Subscribers: modocache, llvm-commits

Differential Revision: https://reviews.llvm.org/D26009

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@285237 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-26 20:29:27 +00:00
Brian Gesiak 46ea061720 [lit] Add more testing instructions to README
Summary:
r283710 introduced two regressions, one to llvm-lit, and the other to
lit executables that were installed via setuptools. Add instructions on
how to test for these regressions in the future.

Reviewers: ddunbar, delcypher, beanz, chapuni, cmatthews, echristo

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25459

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284919 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-22 17:27:31 +00:00
Michal Gorny dee2afd336 [lit] Fix test shtest-timeout.py for modern output
Update the CHECK lines in the shtest-timeout.py lit test to account for
the current output. The output has been changed in r271610 without
adjusting the tests.

Differential Revision: https://reviews.llvm.org/D25236

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284057 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-12 21:40:08 +00:00
Michal Gorny e58533d1b8 [lit] Fix FormatError on individual test timeout
Differential Revision: https://reviews.llvm.org/D25195

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284056 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-12 21:40:04 +00:00
Brian Gesiak 53d343b998 [lit] Run unit tests as part of lit test suite
Summary:
The Python file `utils/lit/lit/ShUtil.py` contains:

1. Logic used by lit itself
2. A set of unit tests for that logic, which can be run by invoking
  `python utils/lit/lit/ShUtil.py`

Move these unit tests to a `tests/unit` subdirectory of lit, and run
the tests as part of lit's test suite. This ensures that, should the
lit test suite be included in LLVM's own regression test suite, these
unit tests will also be run.

(Instructions on how to run lit's test suite can be found in
`utils/lit/README.txt`.)

Reviewers: ddunbar, echristo, delcypher, beanz

Subscribers: mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D25411

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283968 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-12 03:35:04 +00:00
Chris Matthews 420b9a4e2b Fix issue which cases lit installed with setup.py to not resolve main
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283818 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-10 23:22:11 +00:00
Brian Gesiak 56f40f8937 [lit] Remove (or allow specific) unused imports
Summary:
Using Python linter flake8 on the utils/lit reveals several linter
warnings designated "F401: Unused import". Fix or silence these
warnings.

Some of these unused imports are legitimate, while some are part of lit's API.
For example, users of lit expect to be able to access `lit.formats.ShTest` in
their `lit.cfg`, despite the module hierarchy for that symbol actually being
`lit.formats.shtest.ShTest`. To silence linter errors for these lines,
include a "noqa" directive.

Reviewers: echristo, delcypher, beanz, ddunbar

Subscribers: mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D25407

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283710 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-10 01:22:06 +00:00
Brian Gesiak 996fc5bb65 [lit] Remove unused TestingProgressDisplay attr
Summary:
`TestingProgressDisplay` initializes its `current` attribute to `None`, but
never reads or writes the value again. Remove it.

Reviewers: echristo, delcypher, beanz, ddunbar

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25415

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283709 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-10 01:20:43 +00:00
Brian Gesiak cb351a4ca1 [lit] Fix undefined symbol ArgumentError
Summary:
`ArgumentError` is not defined by the Python standard library.
Executing this line of code would throw a exception, but not the
intended one. It would throw a `NameError` exception, since `ArgumentError`
is undefined.

Use `ValueError` instead, which is defined by the Python standard
library.

Reviewers: echristo, delcypher, beanz, ddunbar

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25410

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283708 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-10 01:19:27 +00:00
Brian Gesiak 4bf8ed1328 [lit] Remove semicolons in Python code
Summary:
Semicolons aren't necessary as statement terminators in Python, and
each of these uses are superfluous as they appear at the end of a line.
The convention is to not use semicolons where not needed, so remove them.

Reviewers: echristo, delcypher, beanz, ddunbar

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25409

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283707 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-10 01:18:14 +00:00
Brian Gesiak ef541878bd [lit] Remove unused variable in googletest format
Summary: `prefix` is written to but never read.

Reviewers: echristo, delcypher, beanz, ddunbar

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25408

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283706 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-10 01:15:33 +00:00
Brian Gesiak f475fa9394 [lit] Remove Python 2.6 and below exec workaround
Summary:
The minimum version of Python required to run LLVM's test suite is 2.7.
Remove a workaround for older Python versions.

Reviewers: echristo, delcypher, beanz, ddunbar

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25400

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283705 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-10 01:11:52 +00:00
Brian Gesiak 6b3629eb07 [lit] Remove workaround for Python 2.5
Summary:
The minimum version of Python necessary to run the LLVM test suite is
2.7. Code to work around Python 2.5 and lower isn't necessary.

Reviewers: ddunbar, echristo, delcypher, beanz

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25209

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283169 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-04 00:15:37 +00:00
Chris Bieneman 6eb10d97ee [lit] Use argparse instead of optparse
Summary:
optparse is deprecated in Python 2.7, which is the minimum version of
Python required to run the LLVM test suite. Replace its usage in lit
with argparse, optparse's 2.7 replacement module.

argparse has several benefits over optparse, but this commit does not
make use of those benefits yet. Instead, it simply uses the new API,
and attempts to keep the number of changes to a minimum.

Confirmed that lit's test suite, as well as LLVM's regression test suite,
still pass with these changes.

Patch By Brian Gesiak!

Reviewers: ddunbar, echristo, beanz, delcypher

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25173

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283152 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-03 22:12:42 +00:00
Chris Bieneman 1184da191c [lit] Throw in unimplemented method (NFC)
Summary:
lit's `OneCommandFileTest` class implements an abstract method that
raises if called. However, it raises by referencing an undefined
symbol. Instead, raise explicitly by throwing a `NotImplementedError`.
This is clearer, and appeases Python linters.

Patch By Brian Gesiak!

Reviewers: ddunbar, echristo, beanz

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25170

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283090 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-03 04:48:22 +00:00
Chris Bieneman 245ab62a27 [lit] Remove unused imports (NFC)
Reviewers: ddunbar, echristo, beanz

Patch by Brian Gesiak!

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25169

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283089 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-03 04:48:18 +00:00
Chris Bieneman 47cdc1615e [lit] Compare to None using identity, not equality
Summary:
In Python, `None` is a singleton, so checking whether a variable is
`None` may be done with `is` or `is not`. This has a slight advantage
over equiality comparisons `== None` and `!= None`, since `__eq__` may
be overridden in Python to produce sometimes unexpected results.

Using `is None` and `is not None` is also recommended practice in
https://www.python.org/dev/peps/pep-0008:

> Comparisons to singletons like `None` should always be done with `is` or
> `is not`, never the equality operators.

Patch by Brian Gesiak!

Reviewers: ddunbar, echristo, beanz

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25168

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283088 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-03 04:48:13 +00:00
Daniel Dunbar 97c9e0212d [lit] Add instructions to run lit's test suite
- Patch by Brian Gesiak.
 
 - https://reviews.llvm.org/D24968

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282525 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-27 18:58:50 +00:00
Daniel Dunbar 09e2479ca3 [lit] Fix refacto introduced by rL282479.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282501 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-27 16:17:42 +00:00
Dimitar Vlahovski 6be6db9224 Trying to fix lldb build breakage probably caused by rL282452
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282479 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-27 10:34:43 +00:00
Daniel Dunbar cd04c01efb [lit] Add a --max-failures option.
- This is primarily useful as a "fail fast" mode for lit, where it will stop
   running tests after the first failure.

 - Patch by Max Moiseev.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282452 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-26 23:38:23 +00:00
Ahmed Bougacha 7c60fc0c62 [lit] Downgrade error to warning on gtest crashes during discovery.
Lots of unittests started failing under asan after r280455.  It seems
they've been failing for a long time, but lit silently ignored them.

Downgrade the error so we can figure out what is going on.
Filed http://llvm.org/PR30285.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280674 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-05 20:53:14 +00:00
NAKAMURA Takumi 2b9ec0812b lit/util.py: Another fix for py3.
'str' object has no attribute 'decode'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280641 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-05 00:00:40 +00:00
NAKAMURA Takumi 3be2bb7988 Make lit/util.py py3-compatible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280579 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-03 04:06:37 +00:00
Ivan Krasin 0c194fe701 lit: print process output, if getting the list of google-tests failed.
Summary:
This is a follow up to r280455, where a check for the process exit code
was introduced. Some ASAN bots throw this error now, but it's impossible
to understand what's wrong with them, and the issue is not reproducible.

Reviewers: vitalybuka

Differential Revision: https://reviews.llvm.org/D24210

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280550 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-02 22:31:24 +00:00
Reid Kleckner b60590f078 Quick fix to make LIT_PRESERVES_TMP work again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280502 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-02 16:33:15 +00:00
Reid Kleckner 5dd7b750fc [lit] Clean up temporary files created by tests
Do this by creating a temp directory in the normal system temp
directory, and cleaning it up on exit.

It is still possible for this temp directory to leak if Python exits
abnormally, but this is probably good enough for now.

Fixes PR18335

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280501 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-02 16:29:24 +00:00
Greg Parker f931a64158 [lit] Fail testing if a googletest executable crashes during test discovery
googletest formatted tests are discovered by running the test executable. 
Previously testing would silently succeed if the test executable crashed 
during the discovery process. Now testing fails with "error: unable to 
discover google-tests ..." if the test executable exits with a non-zero status.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280455 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-02 02:44:07 +00:00
Reid Kleckner 23bc604438 [lit] Use multiprocessing by default on Windows
Apparently nobody evaluated multiprocessing on Windows since Daniel
enabled multiprocessing on Unix in r193279. It works so far as I can
tell.

Today this is worth about an 8x speedup (631.29s to 73.25s) on my 24
core Windows machine. Hopefully this will improve Windows buildbot cycle
time, where currently it takes more time to run check-all than it does
to self-host with assertions enabled:
http://lab.llvm.org:8011/builders/clang-x86-windows-msvc2015/builds/20
  build stage 2 ninja all ( 28 mins, 22 secs )
  ninja check 2 stage 2   ( 37 mins, 38 secs )

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280382 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-01 17:19:44 +00:00
Daniel Dunbar fe1bb06072 [lit] Use full config path in diagnostics.
- This allows tools like emacs to automatically find the config file path when
   you step through errors.

 - Patch by Dave Abrahams.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276357 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-21 23:20:41 +00:00
Daniel Dunbar f593e4de93 [lit] Bump version number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276353 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-21 23:17:44 +00:00
Marcin Koscielnicki 9200e60f15 [lit] Add SANITIZER_IGNORE_CVE_2016_2143 to pass_vars.
This variable is used by ASan (and other sanitizers in the future)
on s390x-linux to override a check for CVE-2016-2143 in the running
kernel (see revision 267747 on compiler-rt).  Since the check simply
checks if the kernel version is in a whitelist of known-good versions,
it may miss distribution kernels, or manually-patched kernels - hence
the need for this variable.  To enable running the ASan testsuite on
such kernels, this variable should be passed from the environment
down to the testcases.

Differential Revision: http://reviews.llvm.org/D19888

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273825 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-26 21:49:58 +00:00
Daniel Dunbar 434c834954 [lit] Only gather redirected files for command failures.
- The intended use of this was just in diagnostics, so we shouldn't pay the
   cost of reading these all the time.

 - This will avoid including the full output of each command in tests which
   fail, but the most important use case for this was to gather the output of
   the specific command which failed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272365 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-10 04:17:30 +00:00
Vedant Kumar 4342472183 Revert "[lit] Use os.devnull instead of named temp files"
This reverts commit r272290. It breaks a test that depends on being able
to seek the /dev/null equivalent on Windows:

http://bb.pgr.jp/builders/ninja-clang-x64-mingw64-RA/builds/11360

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272293 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-09 19:36:48 +00:00
Vedant Kumar 20c54a3a30 [lit] Use os.devnull instead of named temp files
Use os.devnull instead of tempfiles when substituting '/dev/null' on
Windows machines. This should make the bots just a bit speedier.

Thanks to Yunzhong Gao for testing this patch on Windows!

Differential Revision: http://reviews.llvm.org/D20549

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272290 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-09 18:38:41 +00:00
Daniel Dunbar 3a7c4849b7 [lit] Ensure we get bytes when reading redirected output files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272147 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-08 14:41:44 +00:00
Daniel Dunbar 8a560fc113 [lit] Ignore errors when decoding redirected output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272066 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-07 22:06:57 +00:00
Daniel Dunbar 311dd52c44 [lit] Fix an uninitialized var on Windows.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272052 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-07 20:14:17 +00:00
Daniel Dunbar dc6c68ee03 [utils/lit] Show available_features with --show-suites.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272022 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-07 16:22:24 +00:00
Daniel Dunbar 89f76ce51d [lit] Improve logging with file redirection.
- This will cause lit to automatically include the first 1K of data in
   redirected output files when a command fails (previously if the command
   failed, but the main point of the test was, say, a `FileCheck` later on, then
   the log wasn't helpful in showing why the command failed).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272021 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-07 16:13:40 +00:00
Daniel Dunbar bf67aefcd0 [lit] Improve readability of failing scripts.
- This only applies to scripts executed by the _internal_ shell script
   interpreter.

 - This patch reworks the log to look more like a shell transcript, and be less
   verbose (but in the interest of calling attention to the important parts).

Here is an example of the new format, for commands with/without failures and
with/without output:
```
$ true
$ echo hi
hi

$ false
note: command had no output on stdout or stderr
error: command failed with exit status 1

```

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271610 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-02 23:49:42 +00:00
Daniel Dunbar 25aa67311c [lit] Factor out a helper for shell command results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271608 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-02 23:32:35 +00:00
Eric Fiselier 960b5867c5 Add "REQUIRES-ANY" feature test
Summary:
This patch adds a "REQUIRES-ANY" feature test that is disjunctive. This marks a test as `UNSUPPORTED` if none of the specified features are available.

Libc++ has the need to write feature test such as `// REQUIRES-ANY: c++98, c++03`  when testing of behavior that is specific to older dialects but has since changed.


Reviewers: rnk, ddunbar

Subscribers: ddunbar, probinson, llvm-commits, cfe-commits

Differential Revision: http://reviews.llvm.org/D20757

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271468 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-02 01:59:57 +00:00
Rui Ueyama d5ebabfb3e [lit] Add %:[STpst] to represent paths without colons on Windows.
Summary:
We need these variables to concatenate two absolute paths to construct
a valid path. Currently, %t\%t is, for example, expanded to C:\foo\C:\foo,
which is not a valid path because ":" is not a valid path character
on Windows. With this patch, %t will be expanded to C\foo.

Differential Revision: http://reviews.llvm.org/D19757

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268168 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-30 21:32:12 +00:00
Matthias Braun 44f51d9b56 lit: python3 compatibility fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265070 91177308-0d34-0410-b5e6-96231b3b80d8
2016-03-31 23:08:55 +00:00
Daniel Dunbar 30a91fe472 [lit][googletest] Handle upstream gtest output
Summary:
Upstream googletest prints "Running main() from gtest_main.cc" to stdout prior
to running tests. LLVM removed that print statement in r61540. If a user were
to use lit to run tests that use upstream googletest, however, lit
reports "Running main()" as an invalid test name.

To avoid such a failure, add an extra conditional to `formats/googletest.py`.
Also add tests to demonstrate the modified behavior.

Reviewers: abdulras, ddunbar

Subscribers: ddunbar, llvm-commits, kastiglione

Differential Revision: http://reviews.llvm.org/D18606

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265034 91177308-0d34-0410-b5e6-96231b3b80d8
2016-03-31 18:22:55 +00:00
Filipe Cabecinhas e2a5365d55 [lit] Enqueue tests on a separate thread to not hit limits on parallel queues
Summary:
The multiprocessing.Queue.put() call can hang if we try queueing all the
tests before starting to take them out of the queue.
The current implementation hangs if tests exceed 2^^15, on Mac OS X.
This might happen with a ninja check-all if one has a bunch of llvm
projects.

Reviewers: delcypher, bkramer

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D17609

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263731 91177308-0d34-0410-b5e6-96231b3b80d8
2016-03-17 18:27:33 +00:00
Chandler Carruth cdb6339f8b [lit] Hack lit to allow a test suite to request that it is run "early".
This lets us for example start running the unit test suite early. For
'check-llvm' on my machine, this drops the tim e from 44s to 32s!!!!!

It's pretty ugly. I barely know how to write Python, so feel free to
just tell me how I should write it instead. =D Thanks to Filipe and
others for help.

Differential Revision: http://reviews.llvm.org/D18089

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263329 91177308-0d34-0410-b5e6-96231b3b80d8
2016-03-12 03:03:31 +00:00
Benjamin Kramer 67256b88e5 The canonical way to XFAIL a test for all targets is XFAIL: *, not XFAIL:
Fix the lit bug that enabled this "feature" (empty triple is substring
of all possible target triples) and change the two outliers to use the
documented * syntax.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259799 91177308-0d34-0410-b5e6-96231b3b80d8
2016-02-04 16:21:38 +00:00
Yunzhong Gao 4f57979e46 Add "/dev/tty" as a special file name for lit tests.
If a lit test has a RUN line that includes a redirection to "/dev/tty", the
redirection goes to the special device file corresponding to the console. It
is /dev/tty on UNIX-like systems and "CON" on Windows.

This patch is needed to implement a test like PR25717 (caused by the size limit
of the Windows system call WriteConsole() prior to Windows 8) where the test
only breaks when outputing to the console and won't fail if using a pipe.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258898 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-27 01:48:20 +00:00