| Commit message (Collapse) | Author | Age | Files | Lines |
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Second Landing Attempt:
This patch enables end to end support for generating ELF interface stubs
directly from clang. Now the following:
clang -emit-interface-stubs -o libfoo.so a.cpp b.cpp c.cpp
will product an ELF binary with visible symbols populated. Visibility attributes
and -fvisibility can be used to control what gets populated.
* Adding ToolChain support for clang Driver IFS Merge Phase
* Implementing a default InterfaceStubs Merge clang Tool, used by ToolChain
* Adds support for the clang Driver to involve llvm-ifs on ifs files.
* Adds -emit-merged-ifs flag, to tell llvm-ifs to emit a merged ifs text file
instead of the final object format (normally ELF)
Differential Revision: https://reviews.llvm.org/D63978
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@374061 91177308-0d34-0410-b5e6-96231b3b80d8
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They break tests on (at least) macOS.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@373556 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch enables end to end support for generating ELF interface stubs
directly from clang. Now the following:
clang -emit-interface-stubs -o libfoo.so a.cpp b.cpp c.cpp
will product an ELF binary with visible symbols populated. Visibility attributes
and -fvisibility can be used to control what gets populated.
* Adding ToolChain support for clang Driver IFS Merge Phase
* Implementing a default InterfaceStubs Merge clang Tool, used by ToolChain
* Adds support for the clang Driver to involve llvm-ifs on ifs files.
* Adds -emit-merged-ifs flag, to tell llvm-ifs to emit a merged ifs text file
instead of the final object format (normally ELF)
Differential Revision: https://reviews.llvm.org/D63978
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@373538 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Clang performs various recursive operations (such as template instantiation),
and may use non-trivial amounts of stack space in each recursive step (for
instance, due to recursive AST walks). While we try to keep the stack space
used by such steps to a minimum and we have explicit limits on the number of
such steps we perform, it's impractical to guarantee that we won't blow out the
stack on deeply recursive template instantiations on complex ASTs, even with
only a moderately high instantiation depth limit.
The user experience in these cases is generally terrible: we crash with
no hint of what went wrong. Under this patch, we attempt to do better:
* Detect when the stack is nearly exhausted, and produce a warning with a
nice template instantiation backtrace, telling the user that we might
run slowly or crash.
* For cases where we're forced to trigger recursive template
instantiation in arbitrarily-deeply-nested contexts, check whether
we're nearly out of stack space and allocate a new stack (by spawning
a new thread) after producing the warning.
Reviewers: rnk, aaron.ballman
Subscribers: mgorny, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D66361
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@369940 91177308-0d34-0410-b5e6-96231b3b80d8
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File "clang/test/lit.cfg.py", line 186, in <module>
config.available_features.add('macos-sdk-' + macOSSDKVersion)
TypeError: must be str, not bytes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@365832 91177308-0d34-0410-b5e6-96231b3b80d8
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- CodeGen/flatten.c will fail under new PM becausec the new PM AlwaysInliner
seems to intentionally inline functions but not call sites marked with
alwaysinline (D23299)
- Tests that check remarks happen to check them for the inliner which is not
turned on at O0. These tests just check that remarks work, but we can make
separate tests for the new PM with -O1 so we can turn on the inliner and
check the remarks with minimal changes.
Differential Revision: https://reviews.llvm.org/D62225
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@363846 91177308-0d34-0410-b5e6-96231b3b80d8
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Was reverted in r363379 due to build breakage.
Thanks to Nico Weber for reverting the original and suggesting the
fix.
Please see https://reviews.llvm.org/D61697
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@363502 91177308-0d34-0410-b5e6-96231b3b80d8
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When plugins aren't enabled, don't try to run plugins tests. Don't
enable plugins unconditionally based on the platform, instead check
if LLVM shared library is actually being built which may not be the
case for every host configuration, even if the host itself supports
plugins.
This addresses test failures introduced by r360891/D59464.
Differential Revision: https://reviews.llvm.org/D62050
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@360991 91177308-0d34-0410-b5e6-96231b3b80d8
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'non-ps4-sdk' and use just 'ps4'.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@360425 91177308-0d34-0410-b5e6-96231b3b80d8
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analyzer-less builds
r359717 added clang-check as a dep of check-clang unconditionally
because I had missed lit.local.cfg in test/Tooling.
Instead, only add clang-check to the tools if the analyzer is enabled,
since the build target only exists then, and since all tests using
clang-check are skipped when the analyzer is disabled.
Differential Revision: https://reviews.llvm.org/D61418
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359820 91177308-0d34-0410-b5e6-96231b3b80d8
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external functions
Summary: This is just changing naming and documentation to be general about external definitions that can be imported for cross translation unit analysis. There is at least a plan to add VarDecls: D46421
Reviewers: NoQ, xazax.hun, martong, a.sidorin, george.karpenkov, serge-sans-paille
Reviewed By: xazax.hun, martong
Subscribers: mgorny, whisperity, baloghadamsoftware, szepet, rnkovacs, mikhail.ramalho, Szelethus, donat.nagy, dkrupp, cfe-commits
Differential Revision: https://reviews.llvm.org/D56441
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@350852 91177308-0d34-0410-b5e6-96231b3b80d8
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Gentoo supports combining clang toolchain with GNU binutils, and many
users actually do that. As -faddrsig is not supported by GNU strip,
this results in a lot of warnings. Disable it by default and let users
enable it explicitly if they want it; with the intent of reevaluating
when the underlying feature becomes standarized.
See also: https://bugs.gentoo.org/667854
Differential Revision: https://reviews.llvm.org/D56047
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@350028 91177308-0d34-0410-b5e6-96231b3b80d8
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Recently I tried to port LLDB's lit configuration files over to use a
on the surface, but broke some cases that weren't broken before and also
exposed some additional problems with the old approach that we were just
getting lucky with.
When we set up a lit environment, the goal is to make it as hermetic as
possible. We should not be relying on PATH and enabling the use of
arbitrary shell commands. Instead, only whitelisted commands should be
allowed. These are, generally speaking, the lit builtins such as echo,
cd, etc, as well as anything for which substitutions have been
explicitly set up for. These substitutions should map to the build
output directory, but in some cases it's useful to be able to override
this (for example to point to an installed tools directory).
This is, of course, how it's supposed to work. What was actually
happening is that we were bringing in PATH and LD_LIBRARY_PATH and then
just running the given run line as a shell command. This led to problems
such as finding the wrong version of clang-cl on PATH since it wasn't
even a substitution, and flakiness / non-determinism since the
environment the tests were running in would change per-machine. On the
other hand, it also made other things possible. For example, we had some
tests that were explicitly running cl.exe and link.exe instead of
clang-cl and lld-link and the only reason it worked at all is because it
was finding them on PATH. Unfortunately we can't entirely get rid of
these tests, because they support a few things in debug info that
clang-cl and lld-link don't (notably, the LF_UDT_MOD_SRC_LINE record
which makes some of the tests fail.
The high level changes introduced in this patch are:
1. Removal of functionality - The lit test suite no longer respects
LLDB_TEST_C_COMPILER and LLDB_TEST_CXX_COMPILER. This means there is no
more support for gcc, but nobody was using this anyway (note: The
functionality is still there for the dotest suite, just not the lit test
suite). There is no longer a single substitution %cxx and %cc which maps
to <arbitrary-compiler>, you now explicitly specify the compiler with a
substitution like %clang or %clangxx or %clang_cl. We can revisit this
in the future when someone needs gcc.
2. Introduction of the LLDB_LIT_TOOLS_DIR directory. This does in spirit
what LLDB_TEST_C_COMPILER and LLDB_TEST_CXX_COMPILER used to do, but now
more friendly. If this is not specified, all tools are expected to be
the just-built tools. If it is specified, the tools which are not
themselves being tested but are being used to construct and run checks
(e.g. clang, FileCheck, llvm-mc, etc) will be searched for in this
directory first, then the build output directory.
3. Changes to core llvm lit files. The use_lld() and use_clang()
functions were introduced long ago in anticipation of using them in
lldb, but since they were never actually used anywhere but their
respective problems, there were some issues to be resolved regarding
generality and ability to use them outside their project.
4. Changes to .test files - These are all just replacing things like
clang-cl with %clang_cl and %cxx with %clangxx, etc.
5. Changes to lit.cfg.py - Previously we would load up some system
environment variables and then add some new things to them. Then do a
bunch of work building out our own substitutions. First, we delete the
system environment variable code, making the environment hermetic. Then,
we refactor the substitution logic into two separate helper functions,
one which sets up substitutions for the tools we want to test (which
must come from the build output directory), and another which sets up
substitutions for support tools (like compilers, etc).
6. New substitutions for MSVC -- Previously we relied on location of
MSVC by bringing in the entire parent's PATH and letting
subprocess.Popen just run the command line. Now we set up real
substitutions that should have the same effect. We use PATH to find
them, and then look for INCLUDE and LIB to construct a substitution
command line with appropriate /I and /LIBPATH: arguments. The nice thing
about this is that it opens the door to having separate %msvc-cl32 and
%msvc-cl64 substitutions, rather than only requiring the user to run
vcvars first. Because we can deduce the path to 32-bit libraries from
64-bit library directories, and vice versa. Without these substitutions
this would have been impossible.
Differential Revision: https://reviews.llvm.org/D54567
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@347216 91177308-0d34-0410-b5e6-96231b3b80d8
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Changes the default Windows target triple returned by
GetHostTriple.cmake from the old environment names (which we wanted to
move away from) to newer, normalized ones. This also requires updating
all tests to use the new systems names in constraints.
Differential Revision: https://reviews.llvm.org/D47381
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@339307 91177308-0d34-0410-b5e6-96231b3b80d8
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Fix %hmaptool path to refer to clang_tools_dir instead of
llvm_tools_dir, in order to fix standalone builds. The tool is built
as part of clang, so it won't be found in installed LLVM tools.
Differential Revision: https://reviews.llvm.org/D50156
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@338627 91177308-0d34-0410-b5e6-96231b3b80d8
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This broke users with spaces in the path, like C:\Program Files\Python
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@335382 91177308-0d34-0410-b5e6-96231b3b80d8
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This is still super ugly, but at least it doesn't require working
directories to just line up perfectly for python to find the tool.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@335330 91177308-0d34-0410-b5e6-96231b3b80d8
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Header maps are binary files used by Xcode, which are used to map
header names or paths to other locations. Clang has support for
those since its inception, but there's not a lot of header map
testing around.
Since it's a binary format, testing becomes pretty much brittle
and its hard to even know what's inside if you don't have the
appropriate tools.
Add a python based tool that allows creating and dumping header
maps based on a json description of those. While here, rewrite
tests to use the tool and remove the binary files from the tree.
This tool was initially written by Daniel Dunbar.
Thanks to Stella Stamenova for helping make this work on Windows.
Differential Revision: https://reviews.llvm.org/D46485
rdar://problem/39994722
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@335295 91177308-0d34-0410-b5e6-96231b3b80d8
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messages.
Summary:
There are cases where the same string or select is repeated verbatim in a lot of diagnostics. This can be a pain to maintain and update. Tablegen provides no way stash the common text somewhere and reuse it in the diagnostics, until now!
This patch allows diagnostic texts to contain `%sub{<definition-name>}`, where `<definition-name>` names a Tablegen record of type `TextSubstitution`. These substitutions are done early, before the diagnostic string is otherwise processed. All `%sub` modifiers will be replaced before the diagnostic definitions are emitted.
The substitution must specify all arguments used by the substitution, and modifier indexes in the substitution are re-numbered accordingly. For example:
```
def select_ovl_candidate : TextSubstitution<"%select{function|constructor}0%select{| template| %2}1">;
```
when used as
```
"candidate `%sub{select_ovl_candidate}3,2,1 not viable"
```
will act as if we wrote:
```
"candidate %select{function|constructor}3%select{| template| %1}2 not viable"
```
Reviewers: rsmith, rjmccall, aaron.ballman, a.sidorin
Reviewed By: rjmccall
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D46740
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@332799 91177308-0d34-0410-b5e6-96231b3b80d8
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Differential Revision: https://reviews.llvm.org/D46514
Patch by Nikolai Kosjar.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@331786 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Now that r320495, "[debuginfo-tests] Support moving
debuginfo-tests to llvm/projects," has landed, remove temporary FIXME
that supported the old mechanism.
Reviewers: zturner, aprantl
Reviewed By: aprantl
Subscribers: JDevlieghere, cfe-commits
Differential Revision: https://reviews.llvm.org/D41259
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@320751 91177308-0d34-0410-b5e6-96231b3b80d8
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llvm/projects or monorepo.
Summary:
The new version of debuginfo-tests will have it's own
lit.cfg.py file which is incompatible with the one in clang/test.
This change supports both the old and new versions, and can be used
until the bots actually move debuginfo-tests to either clang/test or
the monorepo.
This is a prerequisite for D40971.
Reviewers: zturner, aprantl
Subscribers: mgorny, JDevlieghere, llvm-commits, cfe-commits
Differential Revision: https://reviews.llvm.org/D41055
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@320494 91177308-0d34-0410-b5e6-96231b3b80d8
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This is still breaking greendragon.
At this point I give up until someone can fix the greendragon
bots, and I will probably abandon this effort in favor of using
a private github repository.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318722 91177308-0d34-0410-b5e6-96231b3b80d8
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This was reverted due to the tests being run twice on some
build bots. Each run had a slightly different configuration
due to the way in which it was being invoked. This fixes
the problem (albeit in a somewhat hacky way). Hopefully in
the future we can get rid of the workflow of running
debuginfo-tests as part of clang, and then this hack can
go away.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318697 91177308-0d34-0410-b5e6-96231b3b80d8
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This is still broken because it causes certain tests to be
run twice with slightly different configurations, which is
wrong in some cases.
You can observe this by running:
ninja -nv check-all | grep debuginfo-tests
And seeing that it passes clang/test and clang/test/debuginfo-tests
to lit, which causes it to run debuginfo-tests twice. The fix is
going to involve either:
a) figuring out that we're running in this "deprecated" configuration,
and then deleting the clang/test/debuginfo-tests path, which should
cause it to behave identically to before, or:
b) make lit smart enough that it doesn't descend into a sub-suite if
that sub-suite already has a lit.cfg file.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318486 91177308-0d34-0410-b5e6-96231b3b80d8
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This was reverted due to some failures on specific darwin buildbots,
the issue being that the new lit configuration was not setting the
SDKROOT environment variable. We've tested a fix locally and confirmed
that it works, so this patch resubmits everything with the fix
applied.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318435 91177308-0d34-0410-b5e6-96231b3b80d8
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This reverts the aforementioned patch and 2 subsequent follow-ups,
as some buildbots are still failing 2 tests because of it.
Investigation is ongoing into the cause of the failures.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318112 91177308-0d34-0410-b5e6-96231b3b80d8
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Previously, debuginfo-tests was expected to be checked out into
clang/test and then the tests would automatically run as part of
check-clang. This is not a standard workflow for handling
external projects, and it brings with it some serious drawbacks
such as the inability to depend on things other than clang, which
we will need going forward.
The goal of this patch is to migrate towards a more standard
workflow. To ease the transition for build bot maintainers,
this patch tries not to break the existing workflow, but instead
simply deprecate it to give maintainers a chance to update
the build infrastructure.
Differential Revision: https://reviews.llvm.org/D39605
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@317925 91177308-0d34-0410-b5e6-96231b3b80d8
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The substitution for %debuginfo_tests had been inadvertently removed.
This adds it back.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@316043 91177308-0d34-0410-b5e6-96231b3b80d8
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This reverts commit r315627, fixing bot failures:
http://green.lab.llvm.org/green/job/clang-stage1-configure-RA
LIT is failing to properly apply substitution to debuginfo-tests
after this change.
rdar://problem/34979568
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@315712 91177308-0d34-0410-b5e6-96231b3b80d8
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This paves the way for other projects which might /use/ clang or
lld but not necessarily need to the full set of functionality
available to clang and lld tests to be able to have a basic set
of substitutions that allow a project to run the clang or lld
executables.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@315627 91177308-0d34-0410-b5e6-96231b3b80d8
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This addresses two sources of inconsistency in test configuration
files.
1. Substitution boundaries. Previously you would specify a
substitution, such as 'lli', and then additionally a set
of characters that should fail to match before and after
the tool. This was used, for example, so that matches that
are parts of full paths would not be replaced. But not all
tools did this, and those that did would often re-invent
the set of characters themselves, leading to inconsistency.
Now, every tool substitution defaults to using a sane set
of reasonable defaults and you have to explicitly opt out
of it. This actually fixed a few latent bugs that were
never being surfaced, but only on accident.
2. There was no standard way for the system to decide how to
locate a tool. Sometimes you have an explicit path, sometimes
we would search for it and build up a path ourselves, and
sometimes we would build up a full command line. Furthermore,
there was no standardized way to handle missing tools. Do we
warn, fail, ignore, etc? All of this is now encapsulated in
the ToolSubst class. You either specify an exact command to
run, or an instance of FindTool('<tool-name>') and everything
else just works. Furthermore, you can specify an action to
take if the tool cannot be resolved.
Differential Revision: https://reviews.llvm.org/D38565
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@315085 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@315084 91177308-0d34-0410-b5e6-96231b3b80d8
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This un-breaks a lit workflow where you run lit tests from a test
sub-directory within clang without first building clang-func-mapping.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@314013 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch introduces a class that can help to build tools that require cross
translation unit facilities. This class allows function definitions to be loaded
from external AST files based on an index. In order to use this functionality an
index is required. The index format is a flat text file but it might be
replaced with a different solution in the near future. USRs are used as names to
look up the functions definitions. This class also does caching to avoid
redundant loading of AST files.
Right now only function defnitions can be loaded using this API because this is
what the in progress cross translation unit feature of the Static Analyzer
requires. In to future this might be extended to classes, types etc.
Differential Revision: https://reviews.llvm.org/D34512
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@313975 91177308-0d34-0410-b5e6-96231b3b80d8
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There were two issues, one Python 3 specific related to Unicode,
and another which is that the tool substitution for lld no longer
rejected matches where a / preceded the tool name.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@313928 91177308-0d34-0410-b5e6-96231b3b80d8
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This is breaking several bots. I have enough information to
investigate, so I'm reverting to green until I get it figured
out.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@313922 91177308-0d34-0410-b5e6-96231b3b80d8
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debuginfo-tests has need to reuse a lot of common configuration
from clang and lld, and in general it seems like all of the
projects which are tightly coupled (e.g. lld, clang, llvm, lldb,
etc) can benefit from knowing about one other. For example,
lldb needs to know various things about how to run clang in its
test suite. Since there's a lot of common substitutions and
operations that need to be shared among projects, sinking this
up into LLVM makes sense.
In addition, this patch introduces a function add_tool_substitution
which handles all the dirty intricacies of matching tool names
which was previously copied around the various config files. This
is now a simple straightforward interface which is hard to mess
up.
Differential Revision: https://reviews.llvm.org/D37944
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@313919 91177308-0d34-0410-b5e6-96231b3b80d8
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This follows in line with a previous patch of renaming LLVM's.
Working on these files is difficult in certain operating systems
and/or environments that don't like handling python code with a
non .py file extension.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@313892 91177308-0d34-0410-b5e6-96231b3b80d8
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