Commit Graph

234 Commits

Author SHA1 Message Date
Alexandre Ganea a282ea4898 Reland - [CodeView] Emit S_OBJNAME record
Reland integrates build fixes & further review suggestions.

Thanks to @zturner for the initial S_OBJNAME patch!

Differential Revision: https://reviews.llvm.org/D43002
2021-12-21 19:02:14 -05:00
Alexandre Ganea 5bb5142e80 Revert [CodeView] Emit S_OBJNAME record
Also revert all subsequent fixes:
- abd1cbf5e5 [Clang] Disable debug-info-objname.cpp test on Unix until I sort out the issue.
- 00ec441253 [Clang] debug-info-objname.cpp test: explictly encode a x86 target when using %clang_cl to avoid falling back to a native CPU triple.
- cd407f6e52 [Clang] Fix build by restricting debug-info-objname.cpp test to x86.
2021-12-21 19:02:14 -05:00
Alexandre Ganea f44e3fbadd [CodeView] Emit S_OBJNAME record
Thanks to @zturner for the initial patch!

Differential Revision: https://reviews.llvm.org/D43002
2021-12-21 09:26:36 -05:00
Nico Weber b45ad7363c [clang] Use usual lit pattern for CLANG_DEFAULT_PIE_ON_LINUX and LLVM_WITH_Z3
See D28294 for context.

Differential Revision: https://reviews.llvm.org/D115751
2021-12-14 21:44:56 -05:00
Vassil Vassilev c24a58081b Reinstate "[clang-repl] Re-implement clang-interpreter as a test case."
Original commit message: "
  Original commit message: "
    Original commit message: "
       Original commit message:"
         The current infrastructure in lib/Interpreter has a tool, clang-repl, very
         similar to clang-interpreter which also allows incremental compilation.

         This patch moves clang-interpreter as a test case and drops it as conditionally
         built example as we already have clang-repl in place.
       "

       This patch also ignores ppc due to missing weak symbol for __gxx_personality_v0
       which may be a feature request for the jit infrastructure. Also, adds a missing
       build system dependency to the orc jit.
    "

    Additionally, this patch defines a custom exception type and thus avoids the
    requirement to include header <exception>, making it easier to deploy across
    systems without standard location of the c++ headers.
  "

  This patch also works around PR49692 and finds a way to use llvm::consumeError
  in rtti mode.
"

This patch also checks if stl is built with rtti.

Differential revision: https://reviews.llvm.org/D107049
2021-10-26 19:29:56 +00:00
Arthur Eubanks fe66433fe1 [clang] Add plugin ActionType to run command line plugin before main action
Currently we have a way to run a plugin if specified on the command line
after the main action, and ways to unconditionally run the plugin before
or after the main action, but no way to run a plugin if specified on the
command line before the main action.

This introduces the missing option.

This is helpful because -clear-ast-before-backend clears the AST before
codegen, while some plugins may want access to the AST.

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D112096
2021-10-20 08:58:20 -07:00
Leonard Chan 04aff39504 Revert "Reland "[clang-repl] Re-implement clang-interpreter as a test case.""
This reverts commit 1dba6b37bd.

Reverting because the ClangReplInterpreterExceptionTests test fails on
our builders with this patch.
2021-10-08 17:43:23 -07:00
Vassil Vassilev 1dba6b37bd Reland "[clang-repl] Re-implement clang-interpreter as a test case."
Original commit message: "
    Original commit message: "
        Original commit message:"
          The current infrastructure in lib/Interpreter has a tool, clang-repl, very
          similar to clang-interpreter which also allows incremental compilation.

          This patch moves clang-interpreter as a test case and drops it as conditionally
          built example as we already have clang-repl in place.

          Differential revision: https://reviews.llvm.org/D107049
        "

        This patch also ignores ppc due to missing weak symbol for __gxx_personality_v0
        which may be a feature request for the jit infrastructure. Also, adds a missing
        build system dependency to the orc jit.
    "

    Additionally, this patch defines a custom exception type and thus avoids the
    requirement to include header <exception>, making it easier to deploy across
    systems without standard location of the c++ headers.
  "

  This patch also works around PR49692 and finds a way to use llvm::consumeError
  in rtti mode.

Differential revision: https://reviews.llvm.org/D107049
2021-10-08 06:04:39 +00:00
Vassil Vassilev 8859640461 Revert "Reland "[clang-repl] Re-implement clang-interpreter as a test case.""
This reverts commit 6fe2beba7d which fails on
clang-hexagon-elf
2021-09-03 13:18:09 +00:00
Vassil Vassilev 6fe2beba7d Reland "[clang-repl] Re-implement clang-interpreter as a test case."
Original commit message: "
    Original commit message:"
      The current infrastructure in lib/Interpreter has a tool, clang-repl, very
      similar to clang-interpreter which also allows incremental compilation.

      This patch moves clang-interpreter as a test case and drops it as conditionally
      built example as we already have clang-repl in place.

      Differential revision: https://reviews.llvm.org/D107049
    "

    This patch also ignores ppc due to missing weak symbol for __gxx_personality_v0
    which may be a feature request for the jit infrastructure. Also, adds a missing
    build system dependency to the orc jit.
"

Additionally, this patch defines a custom exception type and thus avoids the
requirement to include header <exception>, making it easier to deploy across
systems without standard location of the c++ headers.

Differential revision: https://reviews.llvm.org/D107049
2021-09-03 12:02:58 +00:00
Nico Weber 9b6c8132d3 Revert "Reland "[clang-repl] Re-implement clang-interpreter as a test case.""
This reverts commit f0514a4d26.
Test fails on macOS: https://reviews.llvm.org/D107049#2976603
2021-09-01 08:35:33 -04:00
Vassil Vassilev f0514a4d26 Reland "[clang-repl] Re-implement clang-interpreter as a test case."
Original commit message:"
  The current infrastructure in lib/Interpreter has a tool, clang-repl, very
  similar to clang-interpreter which also allows incremental compilation.

  This patch moves clang-interpreter as a test case and drops it as conditionally
  built example as we already have clang-repl in place.

  Differential revision: https://reviews.llvm.org/D107049
"

This patch also ignores ppc due to missing weak symbol for __gxx_personality_v0
which may be a feature request for the jit infrastructure. Also, adds a missing
build system dependency to the orc jit.
2021-09-01 10:21:38 +00:00
Vassil Vassilev 04bbd189a9 Revert "[clang-repl] Re-implement clang-interpreter as a test case."
This reverts commit 319ce98011 because it fails
on various platforms.
2021-09-01 06:49:52 +00:00
Vassil Vassilev 319ce98011 [clang-repl] Re-implement clang-interpreter as a test case.
The current infrastructure in lib/Interpreter has a tool, clang-repl, very
similar to clang-interpreter which also allows incremental compilation.

This patch moves clang-interpreter as a test case and drops it as conditionally
built example as we already have clang-repl in place.

Differential revision: https://reviews.llvm.org/D107049
2021-09-01 05:23:21 +00:00
Tom Stellard c7b3a91017 libclang.so: Make SONAME independent from LLVM version
Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D105527
2021-07-26 16:37:26 -07:00
Tom Stellard 303ddb60a2 Fix utils/update_cc_test_checks/check-globals.test on stand-alone builds
We want to use LLVM_EXTERNAL_LIT if defined for the %lit substitution.

Reviewed By: jdenny

Differential Revision: https://reviews.llvm.org/D105873
2021-07-13 10:47:30 -07:00
Saiyedul Islam 94d5f2afbe [Clang] Add test dependency on llvm-ar
Following clang driver tests invoke llvm-ar, so ensure that
check-clang rebuilds llvm-ar.

 * test/Driver/clang-offload-bundler.c
 * test/Driver/hip-link-save-temps.hip
 * test/Driver/hip-link-static-library.hip
 * test/Driver/hip-toolchain-rdc-static-lib.hip

Differential Revision: https://reviews.llvm.org/D105285
2021-07-07 14:30:57 +05:30
Vassil Vassilev 92f9852fc9 [clang-repl] Recommit "Land initial infrastructure for incremental parsing"
Original commit message:

  In http://lists.llvm.org/pipermail/llvm-dev/2020-July/143257.html we have
  mentioned our plans to make some of the incremental compilation facilities
  available in llvm mainline.

  This patch proposes a minimal version of a repl, clang-repl, which enables
  interpreter-like interaction for C++. For instance:

  ./bin/clang-repl
  clang-repl> int i = 42;
  clang-repl> extern "C" int printf(const char*,...);
  clang-repl> auto r1 = printf("i=%d\n", i);
  i=42
  clang-repl> quit

  The patch allows very limited functionality, for example, it crashes on invalid
  C++. The design of the proposed patch follows closely the design of cling. The
  idea is to gather feedback and gradually evolve both clang-repl and cling to
  what the community agrees upon.

  The IncrementalParser class is responsible for driving the clang parser and
  codegen and allows the compiler infrastructure to process more than one input.
  Every input adds to the “ever-growing” translation unit. That model is enabled
  by an IncrementalAction which prevents teardown when HandleTranslationUnit.

  The IncrementalExecutor class hides some of the underlying implementation
  details of the concrete JIT infrastructure. It exposes the minimal set of
  functionality required by our incremental compiler/interpreter.

  The Transaction class keeps track of the AST and the LLVM IR for each
  incremental input. That tracking information will be later used to implement
  error recovery.

  The Interpreter class orchestrates the IncrementalParser and the
  IncrementalExecutor to model interpreter-like behavior. It provides the public
  API which can be used (in future) when using the interpreter library.

  Differential revision: https://reviews.llvm.org/D96033
2021-05-13 06:30:29 +00:00
Vassil Vassilev f6907152db Revert "[clang-repl] Land initial infrastructure for incremental parsing"
This reverts commit 44a4000181.

We are seeing build failures due to missing dependency to libSupport and
CMake Error at tools/clang/tools/clang-repl/cmake_install.cmake
file INSTALL cannot find
2021-05-13 04:44:19 +00:00
Vassil Vassilev 44a4000181 [clang-repl] Land initial infrastructure for incremental parsing
In http://lists.llvm.org/pipermail/llvm-dev/2020-July/143257.html we have
mentioned our plans to make some of the incremental compilation facilities
available in llvm mainline.

This patch proposes a minimal version of a repl, clang-repl, which enables
interpreter-like interaction for C++. For instance:

./bin/clang-repl
clang-repl> int i = 42;
clang-repl> extern "C" int printf(const char*,...);
clang-repl> auto r1 = printf("i=%d\n", i);
i=42
clang-repl> quit

The patch allows very limited functionality, for example, it crashes on invalid
C++. The design of the proposed patch follows closely the design of cling. The
idea is to gather feedback and gradually evolve both clang-repl and cling to
what the community agrees upon.

The IncrementalParser class is responsible for driving the clang parser and
codegen and allows the compiler infrastructure to process more than one input.
Every input adds to the “ever-growing” translation unit. That model is enabled
by an IncrementalAction which prevents teardown when HandleTranslationUnit.

The IncrementalExecutor class hides some of the underlying implementation
details of the concrete JIT infrastructure. It exposes the minimal set of
functionality required by our incremental compiler/interpreter.

The Transaction class keeps track of the AST and the LLVM IR for each
incremental input. That tracking information will be later used to implement
error recovery.

The Interpreter class orchestrates the IncrementalParser and the
IncrementalExecutor to model interpreter-like behavior. It provides the public
API which can be used (in future) when using the interpreter library.

Differential revision: https://reviews.llvm.org/D96033
2021-05-13 04:23:24 +00:00
Martin Storsjö f8de9aaef2 [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
Martin Storsjö 64bc44f5dd [llvm-rc] Run clang to preprocess input files
Allow opting out from preprocessing with a command line argument.

Update tests to pass -no-preprocess to make it not try to use clang
(which isn't a build level dependency of llvm-rc), but add a test that
does preprocessing under clang/test/Preprocessor.

Update a few options to allow them both joined (as -DFOO) and separate
(-D BR), as rc.exe allows both forms of them.

With the verbose flag set, this prints the preprocessing command
used (which differs from what rc.exe does).

Tests under llvm/test/tools/llvm-rc only test constructing the
preprocessor commands, while tests under clang/test/Preprocessor test
actually running the preprocessor.

Differential Revision: https://reviews.llvm.org/D100755
2021-04-21 11:50:10 +03:00
Shoaib Meenai 4dbb3f57c6 [clang] Add llvm-strip to test dependencies
CodeGen/thinlto_embed_bitcode.ll relies on it.
2021-01-09 11:57:27 -08:00
Arthur Eubanks aafb366210 Reland [CMake][NewPM] Move ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER into llvm/
This allows us to use its value everywhere, rather than just clang. Some
other places, like opt and lld, will use its value soon.

Rename it internally to LLVM_ENABLE_NEW_PASS_MANAGER.

The #define for it is now in llvm-config.h.

The initial land accidentally set the value of
LLVM_ENABLE_NEW_PASS_MANAGER to the string
ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER instead of its value.

Reviewed By: rnk, hans

Differential Revision: https://reviews.llvm.org/D92072
2020-12-01 14:00:32 -08:00
Arthur Eubanks 806a76c001 Revert "[CMake][NewPM] Move ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER into llvm/"
The new pass manager was accidentally enabled by default with this change.

This reverts commit a36bd4c90d.
2020-12-01 13:12:12 -08:00
Arthur Eubanks a36bd4c90d [CMake][NewPM] Move ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER into llvm/
This allows us to use its value everywhere, rather than just clang. Some
other places, like opt and lld, will use its value soon.

The #define for it is now in llvm-config.h.

Reviewed By: rnk, hans

Differential Revision: https://reviews.llvm.org/D92072
2020-12-01 11:42:17 -08:00
Reid Kleckner 64802d48d5 Make check-clang depend on the LLVM split-file utility
Fixes a recently added test that has this dependency. IMO this utility
is generally useful, so we should go ahead and take the new dependency.
2020-11-23 12:21:44 -08:00
Nico Weber 47eb5ce19a [mac/arm] fix clang/test/Driver/darwin-ld-dedup.c
The test needs an object file, which it currenty gets with
`-target x86_64-apple-darwin10`.  Rather than adding `REQUIRES: X86`, create
the object file via yaml2obj. This way, the test runs and passes even if the
host arch isn't x86 and only the host arch is built.

Part of PR46644.
2020-11-23 13:32:29 -05:00
Yafei Liu 2ce6352e46 Add a call super attribute plugin example
If a virtual method is marked as call_super, the
override method must call it, simpler feature like @CallSuper
in Android Java.
2020-11-20 08:51:12 -05:00
Saleem Abdulrasool 82f86ae01a APINotes: add APINotesYAMLCompiler
This adds the skeleton of the YAML Compiler for APINotes.  This change
only adds the YAML IO model for the API Notes along with a new testing
tool `apinotes-test` which can be used to verify that can round trip the
YAML content properly.  It provides the basis for the future work which
will add a binary serialization and deserialization format to the data
model.

This is based on the code contributed by Apple at
https://github.com/llvm/llvm-project-staging/tree/staging/swift/apinotes.

Differential Revision: https://reviews.llvm.org/D88859
Reviewed By: Gabor Marton
2020-11-05 18:55:13 +00:00
Alexandre Ganea 98e01f56b0 Revert "Re-Re-land: [CodeView] Add full repro to LF_BUILDINFO record"
This reverts commit a3036b3863.

As requested in: https://reviews.llvm.org/D80833#2221866
Bug report: https://crbug.com/1117026
2020-08-17 15:49:18 -04:00
Petr Hosek 31e5f7120b [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
Alexandre Ganea a3036b3863 Re-Re-land: [CodeView] Add full repro to LF_BUILDINFO record
This patch adds the missing information to the LF_BUILDINFO record, which allows for rebuilding a .CPP without any external dependency but the .OBJ itself (other than the compiler).

Some external tools that we are using (Recode, Live++) are extracting the information to reproduce a build without any knowledge of the build system. The LF_BUILDINFO stores a full path to the compiler, the PWD (CWD at program startup), a relative or absolute path to the TU, and the full CC1 command line. The command line needs to be freestanding (not depend on any environment variables). In the same way, MSVC doesn't store the provided command-line, but an expanded version (somehow their equivalent of CC1) which is also freestanding.

For more information see PR36198 and D43002.

Differential Revision: https://reviews.llvm.org/D80833
2020-08-10 13:36:30 -04:00
Petr Hosek a4d78d23c5 Revert "[CMake] Simplify CMake handling for zlib"
This reverts commit ccbc1485b5 which
is still failing on the Windows MLIR bots.
2020-08-08 17:08:23 -07:00
Petr Hosek ccbc1485b5 [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 f3cc4df51d Revert "[CMake] Simplify CMake handling for zlib"
This reverts commit 1adc494bce.
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 1adc494bce [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 3ab01550b6 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 10b1b4a231 and follow-ups
64d99cc6ab and
f9fec0447e.
2020-08-05 12:31:44 +02:00
Petr Hosek 10b1b4a231 [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
Petr Hosek 38c71b7c85 Revert "[CMake] Simplify CMake handling for zlib"
This reverts commit 1d09ecf361 since
it breaks sanitizer bots.
2020-07-23 15:12:42 -07:00
Petr Hosek 1d09ecf361 [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
Petr Hosek bcd27d9d73 Revert "[CMake] Simplify CMake handling for zlib"
This reverts commit 8c1a79dc12 because
it fails when zlib isn't installed.
2020-07-14 19:56:10 -07:00
Petr Hosek 8c1a79dc12 [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
Alexandre Ganea b71499ac9e Revert "Re-land [CodeView] Add full repro to LF_BUILDINFO record"
This reverts commit add59ecb34 and 41d2813a5f.
2020-07-10 19:46:16 -04:00
Alexandre Ganea 41d2813a5f [PDB] Attempt fix for debug-info-codeview-buildinfo.c test
This is a bit a shot in the dark, as it doesn't occur on my Windows 10 machines, nor on x64 Linux Ubuntu 18.04.
This patch tries to fix the following kind of error:
- http://lab.llvm.org:8011/builders/clang-ppc64le-linux/builds/31511/steps/cmake%20stage%201/logs/stdio
- http://lab.llvm.org:8011/builders/clang-ppc64le-linux-lnt/builds/25150/steps/ninja%20check%201/logs/FAIL%3A%20Clang%3A%3Adebug-info-codeview-buildinfo.c
- http://lab.llvm.org:8011/builders/fuchsia-x86_64-linux/builds/7947/steps/check/logs/stdio
2020-07-10 18:52:52 -04:00
Nico Weber 448b777b86 Stop passing site cfg files via --param to llvm-lit.
This has been unnecessary since https://reviews.llvm.org/D37756.

https://reviews.llvm.org/D37838 removed it for llvm.

This removes it from clang, lld, clang-tools-extra (and the GN build).

No intended behavior change.

Differential Revision: https://reviews.llvm.org/D77585
2020-04-07 08:20:40 -04:00
Nico Weber a16ba6fea2 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 ab11b9eefa,
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 ab11b9eefa Revert "Make it possible for lit.site.cfg to contain relative paths, and use it for llvm and clang"
This reverts commit fb80b6b2d5 and
follow-up 631ee8b24a.

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 fb80b6b2d5 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
John Brawn 3f03c12a51 Add an attribute plugin example
Differential Revision: https://reviews.llvm.org/D31343
2020-03-25 14:33:44 +00:00