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Commit Graph

235 Commits

Author SHA1 Message Date
Fangrui Song
86e8114938 [test] Add llvm-stress to LLVM_TEST_DEPENDS and lit substitutions
D106430 added a test which needs LLVM_TEST_DEPENDS and lit substitution.
2021-07-22 09:37:01 -07:00
Haowei Wu
5403a31116 [ifs][elfabi] Merge llvm-ifs/elfabi tools
This change merges llvm-elfabi and llvm-ifs tools.

Differential Revision: https://reviews.llvm.org/D100139
2021-07-19 11:23:19 -07:00
Valentin Churavy
a01ce5e73a Reland [Orc] Add verylazy example for C-bindings
This patch relands https://reviews.llvm.org/D104799, but fixes the
memory handling causing leak sanitizer failures.

This reverts commit a56fe117e04f7d4b953a4226af412dad59425fb5.
2021-07-18 21:17:49 +02:00
Valentin Churavy
814653b1a2 Revert "[Orc] Add verylazy example for C-bindings"
Broke ASAN buildbot, will reland with fixes

This reverts commit b5a6ad8c893a642bcb08ab81b251952c545405d9.
2021-07-18 16:21:37 +02:00
Valentin Churavy
3f3bee8a2c [Orc] Add verylazy example for C-bindings
Still WIP, based on the Kaleidoscope/BuildingAJIT/Chapter4.

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D104799
2021-07-18 12:07:16 +02:00
Valentin Churavy
0b1b7443f1 [Orc] At CBindings for LazyRexports
At C bindings and an example for LLJIT with lazy reexports

Differential Revision: https://reviews.llvm.org/D104672
2021-07-01 21:52:05 +02:00
Valentin Churavy
eafb5c90da [Orc] Run the examples as part of the tests
Enable the Orc C-Bindings for testing.

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D104637
2021-06-30 21:45:16 +02:00
Andrew Litteken
6cfd76633f [IRSim] Adding basic implementation of llvm-sim.
This is a similarity visualization tool that accepts a Module and
passes it to the IRSimilarityIdentifier.  The resulting SimilarityGroups
are output in a JSON file.

Tests are found in test/tools/llvm-sim and check for the file not found,
a bad module, and that the JSON is created correctly.

Reviewers: paquette, jroelofs, MaskRay

Recommit of: 15645d044bcfe2a0f63156048b302f997a717688 to fix linking
errors and GN build system.

Differential Revision: https://reviews.llvm.org/D86974
2021-06-23 14:38:58 -05:00
Nico Weber
d986a221ea Make lit configs relocatable again after c747b7d1d9a
See https://reviews.llvm.org/D77184 for background.
2021-06-22 15:27:32 -04:00
Andrew Litteken
b0b7d897d8 Revert "[IRSim] Adding basic implementation of llvm-sim."
This reverts commit f47d00c54b52bd8adf9b8725912ea1cd0f1873d5.
2021-06-11 15:44:19 -05:00
Andrew Litteken
f5356265d8 [IRSim] Adding basic implementation of llvm-sim.
This is a similarity visualization tool that accepts a Module and
passes it to the IRSimilarityIdentifier.  The resulting SimilarityGroups
are output in a JSON file.

Tests are found in test/tools/llvm-sim and check for the file not found,
a bad module, and that the JSON is created correctly.

Reviewers: paquette, jroelofs, MaskRay

Recommit of: 15645d044bcfe2a0f63156048b302f997a717688 to fix linking
errors.

Differential Revision: https://reviews.llvm.org/D86974
2021-06-11 14:56:41 -05:00
Sam Powell
edcfd20e4e Reland "[llvm] llvm-tapi-diff"
This is relanding commit d1d36f7ad2ae82bea8a6fcc40d6c42a72e21f096 .
This patch additionally addresses failures found in buildbots due to unstable build ordering & post review comments.

This patch introduces a new tool, llvm-tapi-diff, that compares and returns the diff of two TBD files.

Reviewed By: ributzka, JDevlieghere

Differential Revision: https://reviews.llvm.org/D101835
2021-06-09 21:17:34 -07:00
Cyndy Ishida
1ad231f52e Revert "Reland "[llvm] llvm-tapi-diff""
This reverts commit 20126c9fd4afe2fe11510becccaa769332da302f.
The sorting fixes failed to have stable output on different platforms.
2021-06-09 13:48:09 -07:00
Sam Powell
6baaf00ed9 Reland "[llvm] llvm-tapi-diff"
This is relanding commit d1d36f7ad2ae82bea8a6fcc40d6c42a72e21f096 .
This patch additionally addresses failures found in buildbots & post review comments.

This patch introduces a new tool, llvm-tapi-diff, that compares and returns the diff of two TBD files.

Reviewed By: ributzka, JDevlieghere

Differential Revision: https://reviews.llvm.org/D101835
2021-06-09 10:35:41 -07:00
Mariusz Ceier
4faf75c7ac Fix lld macho standalone build by including llvm/Config/llvm-config.h instead of llvm/Config/config.h
lld/MachO/Driver.cpp and lld/MachO/SyntheticSections.cpp include
llvm/Config/config.h which doesn't exist when building standalone lld.

This patch replaces llvm/Config/config.h include with llvm/Config/llvm-config.h
just like it is in lld/ELF/Driver.cpp and HAVE_LIBXAR with LLVM_HAVE_LIXAR and
moves LLVM_HAVE_LIBXAR from config.h to llvm-config.h

Also it adds LLVM_HAVE_LIBXAR to LLVMConfig.cmake and links liblldMachO2.so
with XAR_LIB if LLVM_HAVE_LIBXAR is set.

Differential Revision: https://reviews.llvm.org/D102084
2021-05-19 11:15:07 -04:00
Martin Storsjö
2a1f29ca9f [llvm-rc] Add a GNU windres-like frontend to llvm-rc
This primarily parses a different set of options and invokes the same
resource compiler as llvm-rc normally. Additionally, it can convert
directly to an object file (which in MSVC style setups is done with the
separate cvtres tool, or by the linker).

(GNU windres also supports other conversions; from coff object file back
to .res, and from .res or object file back to .rc form; that's not yet
implemented.)

The other bigger complication lies in being able to imply or pass the
intended target triple, to let clang find the corresponding mingw sysroot
for finding include files, and for specifying the default output object
machine format.

It can be implied from the tool triple prefix, like
`<triple>-[llvm-]windres` or picked up from the windres option e.g.
`-F pe-x86-64`. In GNU windres, that option takes BFD style format names
such as pe-i386 or pe-x86-64. As libbfd in binutils doesn't support
Windows on ARM, there's no such canonical name for the ARM targets.
Therefore, as an LLVM specific extension, this option is extended to
allow passing full triples, too.

Differential Revision: https://reviews.llvm.org/D100756
2021-04-26 22:04:29 +03:00
Nico Weber
74a701ab05 [llvm-objdump] Add an llvm-otool tool
This implements an LLVM tool that's flag- and output-compatible
with macOS's `otool` -- except for bugs, but from testing with both
`otool` and `xcrun otool-classic`, llvm-otool matches vanilla
otool's behavior very well already. It's not 100% perfect, but
it's a very solid start.

This uses the same approach as llvm-objcopy: llvm-objdump uses
a different OptTable when it's invoked as llvm-otool. This
is possible thanks to D100433.

Differential Revision: https://reviews.llvm.org/D100583
2021-04-20 08:24:58 -04:00
David Blaikie
aa658628f3 Conditionalize the JIT test dependency 2021-03-30 13:04:02 -07:00
Stella Stamenova
4e3085f2a6 Revert "Add missing dependency to fix building the jit tests"
This breaks the windows bots because the dependency does not exist on Windows.
Per the cmake file:

if(CMAKE_HOST_UNIX)
  add_subdirectory(LLJITWithRemoteDebugging)
endif()

This reverts commit bd56e91fdbc65053dd08cca1f2c9e15087c062eb.
2021-03-29 20:06:31 -07:00
David Blaikie
bab9dd2c4b Add missing dependency to fix building the jit tests 2021-03-29 17:33:08 -07:00
Andrew Litteken
4514855e45 Revert "[IRSim] Adding basic implementation of llvm-sim."
Causing build errors on the Windows Buildbots.

This reverts commit 5155dff2784a47583d432d796b7cf47a0bed9f20.
2021-03-20 18:03:09 -05:00
Andrew Litteken
db0fe80a86 [IRSim] Adding basic implementation of llvm-sim.
This is a similarity visualization tool that accepts a Module and
passes it to the IRSimilarityIdentifier.  The resulting SimilarityGroups
are output in a JSON file.

Tests are found in test/tools/llvm-sim and check for the file not found,
a bad module, and that the JSON is created correctly.

Reviewers: paquette, jroelofs, MaskRay

Recommit of: 15645d044bcfe2a0f63156048b302f997a717688 to fix linking
errors.

Differential Revision: https://reviews.llvm.org/D86974
2021-03-20 16:47:50 -05:00
Stella Stamenova
51ae9734a2 Support multi-configuration generators correctly in several config files
Multi-configuration generators (such as Visual Studio and Xcode) allow the specification of a build flavor at build time instead of config time, so the lit configuration files need to support that - and they do for the most part. There are several places that had one of two issues (or both!):

1) Paths had %(build_mode)s set up, but then not configured, resulting in values that would not work correctly e.g. D:/llvm-build/%(build_mode)s/bin/dsymutil.exe
2) Paths did not have %(build_mode)s set up, but instead contained $(Configuration) (which is the value for Visual Studio at configuration time, for Xcode they would have had the equivalent) e.g. "D:/llvm-build/$(Configuration)/lib".

This seems to indicate that we still have a lot of fragility in the configurations, but also that a number of these paths are never used (at least on Windows) since the errors appear to have been there a while.

This patch fixes the configurations and it has been tested with Ninja and Visual Studio to generate the correct paths. We should consider removing some of these settings altogether.

Reviewed By: JDevlieghere, mehdi_amini

Differential Revision: https://reviews.llvm.org/D96427
2021-02-11 09:32:20 -08:00
Fangrui Song
7056fcfd30 [CMake] Add llvm-profgen to LLVM_TEST_DEPENDS
Otherwise `check-llvm-*` may not rebuild llvm-profgen, causing llvm-profgen tests
to fail if llvm-profgen happens to be stale.
2020-12-09 09:34:51 -08:00
Alexander Shaposhnikov
a6c5914f99 [llvm-objcopy][MachO] Add llvm-bitcode-strip driver
This diff adds llvm-bitcode-strip driver to llvm-objcopy.
In the future this will enable us to build a replacement for the tool bitcode_strip.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D87212
2020-09-18 18:13:05 -07:00
jasonliu
989dca51e1 Disable a large test for EXPENSIVE_CHECKS and debug build
Summary:
When running a large test in LLVM_ENABLE_EXPENSIVE_CHECKS=ON mode,
buildbot could hit timeout.
Disable the test when this mode is on.
Also disable it for debug so that the test won't hang for too long.

Reviewed By: hubert.reinterpretcast

Differential Revision: https://reviews.llvm.org/D87794
2020-09-16 21:57:34 +00:00
Petr Hosek
04bcaa46b7 [CMake] Simplify CMake handling for libxml2
This matches the changes made to handling of zlib done in 10b1b4a
where we rely on find_package and the imported target rather than
manually appending the library and include paths. The use of
LLVM_LIBXML2_ENABLED has been replaced by LLVM_ENABLE_LIBXML2
thus reducing the number of variables.

Differential Revision: https://reviews.llvm.org/D84563
2020-09-09 21:44:44 -07:00
Eric Christopher
8680f960e0 Add cmake test support for LLJITWithThinLTOSummaries to make sure
it's being built and called (and substituted).
2020-08-26 11:46:09 -07:00
Petr Hosek
6abbc429da [CMake] Simplify CMake handling for zlib
Rather than handling zlib handling manually, use find_package from CMake
to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB,
HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is
set to YES, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.

This is a reland of abb0075 with all followup changes and fixes that
should address issues that were reported in PR44780.

Differential Revision: https://reviews.llvm.org/D79219
2020-08-11 20:22:11 -07:00
Petr Hosek
6c27d09879 Revert "[CMake] Simplify CMake handling for zlib"
This reverts commit ccbc1485b55ff4acd21bcfafbf7aec4ed0fd818d which
is still failing on the Windows MLIR bots.
2020-08-08 17:08:23 -07:00
Petr Hosek
af8170b5ad [CMake] Simplify CMake handling for zlib
Rather than handling zlib handling manually, use find_package from CMake
to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB,
HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is
set to YES, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.

This is a reland of abb0075 with all followup changes and fixes that
should address issues that were reported in PR44780.

Differential Revision: https://reviews.llvm.org/D79219
2020-08-08 16:44:08 -07:00
Christian Kühnel
e33dafd15e Revert "[CMake] Simplify CMake handling for zlib"
This reverts commit 1adc494bce44f6004994deed61b30d4b71fe1d05.
This patch broke the Windows compilation on buildbot and pre-merge testing:
http://lab.llvm.org:8011/builders/mlir-windows/builds/5945
https://buildkite.com/llvm-project/llvm-master-build/builds/780
2020-08-07 09:36:49 +02:00
Petr Hosek
70737c97db [CMake] Simplify CMake handling for zlib
Rather than handling zlib handling manually, use find_package from CMake
to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB,
HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is
set to YES, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.

This is a reland of abb0075 with all followup changes and fixes that
should address issues that were reported in PR44780.

Differential Revision: https://reviews.llvm.org/D79219
2020-08-05 16:07:11 -07:00
Hans Wennborg
c132b24d91 Revert "[CMake] Simplify CMake handling for zlib"
This quietly disabled use of zlib on Windows even when building with
-DLLVM_ENABLE_ZLIB=FORCE_ON.

> Rather than handling zlib handling manually, use find_package from CMake
> to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB,
> HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is
> set to YES, which requires the distributor to explicitly select whether
> zlib is enabled or not. This simplifies the CMake handling and usage in
> the rest of the tooling.
>
> This is a reland of abb0075 with all followup changes and fixes that
> should address issues that were reported in PR44780.
>
> Differential Revision: https://reviews.llvm.org/D79219

This reverts commit 10b1b4a231a485f1711d576e6131f6755e008abe and follow-ups
64d99cc6abed78c00a2a7863b02ce54911a5264f and
f9fec0447e12da9e8cf4b628f6d45f4941e7d182.
2020-08-05 12:31:44 +02:00
Fangrui Song
5554745259 Add test utility 'split-file'
See https://lists.llvm.org/pipermail/llvm-dev/2020-July/143373.html
"[llvm-dev] Multiple documents in one test file" for some discussions.

This patch has explored several alternatives. The current semantics are similar to
what @dblaikie proposed.
`split-file filename output` splits the input file into multiple parts separated by
regex `^(.|//)--- filename` and write each part to the file `output/filename`
(`filename` can include path separators).

Use case A (organizing input of different formats (e.g. linker
script+assembly) in one file).

```
# RUN: split-file %s %t
# RUN: llvm-mc %t/asm -o %t.o
# RUN: ld.lld -T %t/lds %t.o -o %t
This is sometimes better than the %S/Inputs/ approach because the user
can see the auxiliary files immediately and don't have to open another file.

# asm
...
# lds
...
```

Use case B (for utilities which don't have built-in input splitting
feature):

```
// RUN: split-file %s %t
// RUN: llc < %t/1.ll | FileCheck %s --check-prefix=CASE1
// RUN: llc < %t/2.ll | FileCheck %s --check-prefix=CASE2
Combing tests prudently can improve readability.
For example, when testing parsing errors if the recovery mechanism isn't possible,
grouping the tests in one file can more readily see test coverage/strategy.

//--- 1.ll
...
//--- 2.ll
...
```

Since this is a new utility, there is no git history concerns for
UpperCase variable names. I use lowerCase variable names like mlir/lld.

Reviewed By: jhenderson, lattner

Differential Revision: https://reviews.llvm.org/D83834
2020-08-03 20:42:09 -07:00
Fangrui Song
8a55d3cc1c Revert D83834 "Add test utility 'extract'"
This reverts commit d054c7ee2e9f4f98af7f22a5b00a941eb919bd59.

There are discussions about the utility name, its functionality and user interface.
Revert before we reach consensus.
2020-07-28 13:26:33 -07:00
Petr Hosek
300de51f92 [CMake] Simplify CMake handling for zlib
Rather than handling zlib handling manually, use find_package from CMake
to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB,
HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is
set to YES, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.

This is a reland of abb0075 with all followup changes and fixes that
should address issues that were reported in PR44780.

Differential Revision: https://reviews.llvm.org/D79219
2020-07-23 23:05:36 -07:00
Fangrui Song
4f0382f382 Add test utility 'extract'
See https://lists.llvm.org/pipermail/llvm-dev/2020-July/143373.html
"[llvm-dev] Multiple documents in one test file" for some discussions.

`extract part filename` splits the input file into multiple parts separated by
regex `^(.|//)--- ` and extract the specified part to stdout or the
output file (if specified).

Use case A (organizing input of different formats (e.g. linker
script+assembly) in one file).

```
// RUN: extract lds %s -o %t.lds
// RUN: extract asm %s -o %t.s
// RUN: llvm-mc %t.s -o %t.o
// RUN: ld.lld -T %t.lds %t.o -o %t
This is sometimes better than the %S/Inputs/ approach because the user
can see the auxiliary files immediately and don't have to open another file.
```

Use case B (for utilities which don't have built-in input splitting
feature):

```
// RUN: extract case1 %s | llc | FileCheck %s --check-prefix=CASE1
// RUN: extract case2 %s | llc | FileCheck %s --check-prefix=CASE2
Combing tests prudently can improve readability.
This is sometimes better than having multiple test files.
```

Since this is a new utility, there is no git history concerns for
UpperCase variable names. I use lowerCase variable names like mlir/lld.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D83834
2020-07-23 19:15:35 -07:00
Petr Hosek
cb35cea843 Revert "[CMake] Simplify CMake handling for zlib"
This reverts commit 1d09ecf36175f7910ffedd6d497c07b5c74c22fb since
it breaks sanitizer bots.
2020-07-23 15:12:42 -07:00
Petr Hosek
683670a251 [CMake] Simplify CMake handling for zlib
Rather than handling zlib handling manually, use find_package from CMake
to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB,
HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is
set to YES, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.

This is a reland of abb0075 with all followup changes and fixes that
should address issues that were reported in PR44780.

Differential Revision: https://reviews.llvm.org/D79219
2020-07-23 14:47:25 -07:00
Sameer Arora
4336e89619 Introducing llvm-libtool-darwin
This diff starts the implementation of llvm-libtool-darwin
(an llvm based replacement of cctool's libtool).
Libtool is used for creating static and dynamic libraries
from a bunch of object files given as input.

Reviewed by alexshap, smeenai, jhenderson, MaskRay

Differential Revision: https://reviews.llvm.org/D82923
2020-07-17 08:07:02 -07:00
Mircea Trofin
5f8ff6c8ac [llvm] Moved InlineSizeEstimatorAnalysis test to .ll
Summary:
Following guidance in
https://llvm.org/docs/TestingGuide.html#testing-analysis

Reviewers: mehdi_amini

Subscribers: mgorny, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D83918
2020-07-16 12:25:16 -07:00
Petr Hosek
53d387776f Revert "[CMake] Simplify CMake handling for zlib"
This reverts commit 8c1a79dc12f3cc600e16153961cd8cc50ba2c33b because
it fails when zlib isn't installed.
2020-07-14 19:56:10 -07:00
Petr Hosek
7417430bcf [CMake] Simplify CMake handling for zlib
Rather than handling zlib handling manually, use find_package from CMake
to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB,
HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is
set to YES, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.

This is a reland of abb0075 with all followup changes and fixes that
should address issues that were reported in PR44780.

Differential Revision: https://reviews.llvm.org/D79219
2020-07-14 19:30:08 -07:00
Mircea Trofin
3bd9230b2f [llvm][NFC] Use llvm_canonicalize_cmake_booleans for LLVM_HAVE_TF_AOT
Reviewers: thakis

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D82776
2020-06-29 12:27:52 -07:00
Fangrui Song
532260bd72 [CMake] Change target 'check' from 'check-llvm' to 'check-all'
Reviewed By: echristo, mehdi_amini

Differential Revision: https://reviews.llvm.org/D80823
2020-05-29 14:15:27 -07:00
Martin Storsjö
f96eecf20b [examples] Skip building the Bye pass plugin on windows
Windows doesn't properly support pass plugins (as a shared library
can't have undefined references, which pass plugins assume, being
loaded into a host process that contains provides them), thus
disable building it and the corresponding test.

This matches what was done for the passes unit test in
bc8e44218810c0db6328b9809c959ceb7d43e3f5.

Differential Revision: https://reviews.llvm.org/D79771
2020-05-13 13:40:56 +03:00
Nico Weber
b63fb1d467 Reland "Make it possible for lit.site.cfg to contain relative paths, and use it for llvm and clang"
The problem on Windows was that the \b in "..\bin" was interpreted
as an escape sequence. Use r"" strings to prevent that.

This reverts commit ab11b9eefa16661017c2c7b3b34c46b069f43fb7,
with raw strings in the lit.site.cfg.py.in files.

Differential Revision: https://reviews.llvm.org/D77184
2020-04-02 16:12:03 -04:00
Nico Weber
529e4baab6 Revert "Make it possible for lit.site.cfg to contain relative paths, and use it for llvm and clang"
This reverts commit fb80b6b2d58c476747a3206bd4371b787108591b and
follow-up 631ee8b24adf36359b61ecb47484e8e82de35be8.

Seems to not work on Windows:
http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/31684
http://lab.llvm.org:8011/builders/llvm-clang-win-x-aarch64/builds/6512

Let's revert while I investigate.
2020-04-02 15:00:09 -04:00
Nico Weber
16fa9028fd Make it possible for lit.site.cfg to contain relative paths, and use it for llvm and clang
Currently, all generated lit.site.cfg files contain absolute paths.

This makes it impossible to build on one machine, and then transfer the
build output to another machine for test execution. Being able to do
this is useful for several use cases:

1. When running tests on an ARM machine, it would be possible to build
   on a fast x86 machine and then copy build artifacts over after building.

2. It allows running several test suites (clang, llvm, lld) on 3
   different machines, reducing test time from sum(each test suite time) to
   max(each test suite time).

This patch makes it possible to pass a list of variables that should be
relative in the generated lit.site.cfg.py file to
configure_lit_site_cfg(). The lit.site.cfg.py.in file needs to call
`path()` on these variables, so that the paths are converted to absolute
form at lit start time.

The testers would have to have an LLVM checkout at the same revision,
and the build dir would have to be at the same relative path as on the
builder.

This does not yet cover how to figure out which files to copy from the
builder machine to the tester machines. (One idea is to look at the
`--graphviz=test.dot` output and copy all inputs of the `check-llvm`
target.)

Differential Revision: https://reviews.llvm.org/D77184
2020-04-02 13:53:16 -04:00