This is based on the discussions on: [LLVMdev] [RFC] Raising LLVM minimum required MSVC version to 2013 for trunk
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229185 91177308-0d34-0410-b5e6-96231b3b80d8
Since header files are not compilation units, CMake does not require
you to specify them in the CMakeLists.txt file. As a result, unless a
header file is explicitly added, CMake won't know about it, and when
generating IDE-based projects, CMake won't put the header files into
the IDE project. LLVM currently tries to deal with this in two ways:
1) It looks for all .h files that are in the project directory, and
adds those.
2) llvm_add_library() understands the ADDITIONAL_HEADERS argument,
which allows one to list an arbitrary list of headers.
This patch takes things one step further. It adds the ability for
llvm_add_library() to take an ADDITIONAL_HEADER_DIRS argument, which
will specify a list of folders which CMake will glob for header files.
Furthermore, it will glob not only for .h files, but also for .inc
files.
Included in this CL is an update to one of the existing users of
ADDITIONAL_HEADERS to use this new argument instead, to serve as an
illustration of how this cleans up the CMake.
The big advantage of this new approach is that until now, there was no
way for the IDE projects to locate the header files that are in the
include tree. In other words, if you are in, for example,
lib/DebugInfo/DWARF, the corresponding includes for this project will
be located under include/llvm/DebugInfo/DWARF. Now, in the
CMakeLists.txt for lib/DebugInfo/DWARF, you can simply write:
ADDITIONAL_HEADER_DIRS
../../include/llvm/DebugInfo/DWARF
as an argument to llvm_add_library(), and all header files will get
added to the IDE project.
Differential Revision: http://reviews.llvm.org/D7460
Reviewed By: Chris Bieneman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228670 91177308-0d34-0410-b5e6-96231b3b80d8
This allows all CMake projects, as well as C++ code, to detect if
and when DIA SDK is available for use so that we can enable the
DIA-based PDB reader implementation.
Differential Revision: http://reviews.llvm.org/D7457
Reviewed By: Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228669 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Handle LLVM_USE_SANITIZER=Address;Undefined to enable ASan and UBSan
If UBSan is compatible with more of the other sanitizers, maybe we should
deal with this in a better way where we allow combining UBSan with any of
the other sanitizers.
Reviewers: samsonov
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7024
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228219 91177308-0d34-0410-b5e6-96231b3b80d8
This was added in r188351 to fix a naming conflict between the
profile_rt-static and profile_rt-shared who both ended up in
lib/profile_rt.lib.
The change also affected other libraries (like libclang), and
users are reporting that they find it surprising that there's
no longer a libclang.lib. Since the profile_rt naming conflict
doesn't seem to exist any more, I think we can remove this.
Differential Revision: http://reviews.llvm.org/D7391
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228049 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
When LLVM_USE_SANITIZE_COVERAGE=YES
and one of the sanitizers is used -fsanitize-coverage=3 will be added
to build flag. This will be used to run a coverage-guided fuzzer on various
llvm libraries.
Test Plan: n/a
Reviewers: rnk
Reviewed By: rnk
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7116
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227216 91177308-0d34-0410-b5e6-96231b3b80d8
Should make the tests run when using CMake on systems where 'uname -p'
reports "amd64", such as FreeBSD.
Should fix PR21559.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226937 91177308-0d34-0410-b5e6-96231b3b80d8
ELF linkers by default allow shared libraries to contain undefined references
and it is up to the dynamic linker to look for them.
On COFF and MachO, that is not the case.
This creates a situation where a .so might build on an ELF system, but the build
of the corresponding .dylib or .dll will fail.
This patch changes the cmake build to use -Wl,-z,defs when linking and updates
the dependencies so that -DBUILD_SHARED_LIBS=ON build still works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226611 91177308-0d34-0410-b5e6-96231b3b80d8
As a result, installations of LLVM in non-standard locations
will not require passing custom -ccopt -L flags when building
the binary, nor absolute paths would be embedded in the cma/cmxa
files. Additionally, the executables will not require changes
to LD_LIBRARY_PATH, although CAML_LD_LIBRARY_PATH still
has to be set for ocamlc without -custom.
See http://caml.inria.fr/mantis/view.php?id=6642.
Note that the patch is approved, but not merged yet.
It will be released in 4.03 and likely 4.02.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225778 91177308-0d34-0410-b5e6-96231b3b80d8
Add the missing `DEPENDS` keyword. r225319 did almost the right thing
(I didn't notice the problem with it because `Kaleidoscope-Ch8` wasn't
building at all).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225321 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This in turn allows us to use #includes with cgo that rely on CMake
provided include directories which is particularly useful for handling
generated headers that aren't reasonable to put in an "installable"
location.
Differential Revision: http://reviews.llvm.org/D6798
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224962 91177308-0d34-0410-b5e6-96231b3b80d8
that is used by other projects to build against LLVM. This will allow
subsequent patches to them to use LLVM_LIBDIR_SUFFIX, both when built as
part of the larger LLVM build an as part of a standalone build against
an installed set of LLVM libraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224920 91177308-0d34-0410-b5e6-96231b3b80d8
*numerous* places where it was missing in the CMake build. The primary
change here is that the suffix is now actually used for all of the lib
directories in the LLVM project's CMake. The various subprojects still
need similar treatment.
This is the first of a series of commits to try to make LLVM's cmake
effective in a multilib Linux installation. I don't think many people
are seriously using this variable so I'm hoping the fallout will be
minimal. A somewhat unfortunate consequence of the nature of these
commits is that until I land all of them, they will in part make the
brokenness of our multilib support more apparant. At the end, things
should actually work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224919 91177308-0d34-0410-b5e6-96231b3b80d8
The algorithm for sorting libraries in topological order, as
previously implemented, had a few issues:
* It didn't make any sense.
* It didn't actually sort libraries in topological order.
* It hung on some inputs, e.g. "LLVMipo".
This commit replaces the old algorithm with a straightforward port
from llvm-config.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224554 91177308-0d34-0410-b5e6-96231b3b80d8
This lets the queries work on Windows as well as Linux.
This does mean make and cmake aren't using the same scripts to do the
queries (again), but at least GetSVN.cmake understands git and git-svn
as well as svn now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223425 91177308-0d34-0410-b5e6-96231b3b80d8
Presumably it was added to the CMake system when MAXPATHLEN was still
used by code built for Windows. Currently only lib/Support/Path.inc uses
MAXPATHLEN, and it should be available on all Unices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223139 91177308-0d34-0410-b5e6-96231b3b80d8
This allows the logic to work with Git, and also uses the variable names
to match what Clang is actually looking for.
This is a re-application of r190556 and r190808. This changes the interface
of GetSVN.cmake. Clang change to follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222391 91177308-0d34-0410-b5e6-96231b3b80d8
A shared library (unlike a .a), has its dependencies recorded in the library and
we can pass PRIVATE to target_link_libraries.
This patch then removes some bogus dependencies when using
BUILD_SHARED_LIBS=ON. For example, we go from
build lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/AggressiveAntiDepBreaker.cpp.o:
CXX_COMPILER /home/espindola/llvm/llvm/lib/CodeGen/AggressiveAntiDepBreaker.cpp
|| include/llvm/IR/intrinsics_gen lib/libLLVMSupport.so
lib/libLLVMCore.so lib/libLLVMBitReader.so
lib/libLLVMTransformUtils.so lib/libLLVMInstCombine.so
lib/libLLVMScalarOpts.so lib/libLLVMipa.so lib/libLLVMAnalysis.so
lib/libLLVMMCParser.so lib/libLLVMMC.so lib/libLLVMObject.so
lib/libLLVMTarget.so lib/libLLVMProfileData.so
to
build lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/AggressiveAntiDepBreaker.cpp.o:
CXX_COMPILER /home/espindola/llvm/llvm/lib/CodeGen/AggressiveAntiDepBreaker.cpp
|| include/llvm/IR/intrinsics_gen lib/libLLVMSupport.so
lib/libLLVMCore.so lib/libLLVMTransformUtils.so
lib/libLLVMScalarOpts.so lib/libLLVMAnalysis.so lib/libLLVMMC.so
lib/libLLVMTarget.so
In fact, build.ninja goes from 5231028 bytes to 4896759 bytes.
With this, old verisons of bfd ld (2.24 is OK, 2.23 warns) will print a bogus
warning when building with BUILD_SHARED_LIBS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221530 91177308-0d34-0410-b5e6-96231b3b80d8
IMO we need to clean up some of these, but the member variable one
(C4458) has false positives on static methods. It is currently firing
on Twine, which has a static method like:
struct Twine {
uintptr_t LHS, RHS;
static void staticMethod() {
// warning C4458: declaration of 'LHS' hides class member
uintptr_t LHS;
...
}
};
We should fix up clang's -Wshadow and clean it up, and then we can
re-enable some of these MSVC warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221012 91177308-0d34-0410-b5e6-96231b3b80d8
Summary: This is a fix for the command line syntax error while building LTO when using MinGW.
Patch By: jsroemer
Reviewers: rnk
Reviewed By: rnk
Subscribers: rnk, beanz, llvm-commits
Differential Revision: http://reviews.llvm.org/D5476
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220935 91177308-0d34-0410-b5e6-96231b3b80d8
On FreeBSD 10.0, size_t needs to be defined before including cxxabi.h.
Currenty HAVE_CXXABI_H is not defined on FreeBSD because of that reason.
This patch teaches cmake and configure how to include it.
http://reviews.llvm.org/D5940
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220665 91177308-0d34-0410-b5e6-96231b3b80d8
This tool lets us build LLVM components within the tree by setting up a
$GOPATH that resembles a tree fetched in the normal way with "go get".
It is intended that components such as the Go frontend will be built in-tree
using this tool.
Differential Revision: http://reviews.llvm.org/D5902
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220462 91177308-0d34-0410-b5e6-96231b3b80d8
This would cause the flag to appear in the output of "llvm-config --cppflags",
which should contain only preprocessor flags. The -gsplit-dwarf flag in
particular can cause problems with certain downstream users such as cgo.
Differential Revision: http://reviews.llvm.org/D5895
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220410 91177308-0d34-0410-b5e6-96231b3b80d8
the CGO build environment. This lets things like -rpath propagate down
to the C++ code that is built along side the Go bindings when testing
them.
Patch by Peter Collingbourne, and verified that it works by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220252 91177308-0d34-0410-b5e6-96231b3b80d8
It dropped required functions for plugins with gnu ld 2.20 and 2.21.
Failing Tests (1):
LLVM :: Feature/load_module.ll
Hello: bin/opt: symbol lookup error: lib/LLVMHello.so: undefined symbol: _ZN4llvm11raw_ostream13write_escapedENS_9StringRefEb
Failing Tests (1):
Clang :: Frontend/plugins.c
error: unable to load plugin 'lib/PrintFunctionNames.so': 'lib/PrintFunctionNames.so: undefined symbol: _ZN5clang15PluginASTAction6anchorEv'
I think we should inspect linker's version or behavior to introduce --gc-sections for --export-dynamic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220198 91177308-0d34-0410-b5e6-96231b3b80d8
Both bfd ld and gold correctly handle --export-dynamic, so gc-sections is safe even for binaries
that support plugins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220174 91177308-0d34-0410-b5e6-96231b3b80d8
In fact, symbolization is now expected to work only on Linux and
FreeBSD/NetBSD, where we have dl_iterate_phdr and can learn the
main executable name without argv0 (it will be possible on BSD systems
after http://reviews.llvm.org/D5693 lands). #ifdef-out the code for
all the rest Unix systems.
Reviewed in http://reviews.llvm.org/D5610
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219534 91177308-0d34-0410-b5e6-96231b3b80d8
This change modifies fatal signal handler used in LLVM tools.
Now it attempts to find llvm-symbolizer binary and communicates
with it in order to turn instruction addresses into
function/file/line info entries. This should significantly improve
stack traces readability in Debug builds.
This feature only works on selected platforms (including Darwin
and Linux). If the symbolization fails for some reason, signal
handler will fallback to the original behavior.
Reviewed in http://reviews.llvm.org/D5610
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219354 91177308-0d34-0410-b5e6-96231b3b80d8
lldb sets the variable SHARED_LIBRARY to 1, which breaks this conditional,
because older versions of CMake interpret
if ("${t}" STREQUAL "SHARED_LIBRARY")
as meaning
if ("${t}" STREQUAL "1")
in this case. Change the conditional so it does the right thing with both old
and new CMakes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218542 91177308-0d34-0410-b5e6-96231b3b80d8
``make clean`` because it won't be available.
This is an attempt to unbreak buildbots broken by r217484.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217490 91177308-0d34-0410-b5e6-96231b3b80d8
This fixes the generation of broken LLVMExports.cmake file by
the Autoconf/Makefile build system when --enable-shared is passed to
configure.
When --enable_shared is passed the Makefile.rules does not set the
LLVMConfigLibs variable which cmake/modules/Makefile previously relied
on. Now it runs the llvm-config command itself to get the library names.
This still isn't perfect because the generated LLVM targets refer to the
static libraries and not the shared library but that is much larger
problem to fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217484 91177308-0d34-0410-b5e6-96231b3b80d8
The basic idea is similar to the existing cross compilation support. A directory must be configured to build host versions of tablegen tools and llvm-config. This directory can be user provided (and configured), or it can be created during the build. During a build the native build directory will be configured and built to supply the tablegen tools used during the build. A user could also explicitly provide the tablegen executables to run on the CMake command line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217105 91177308-0d34-0410-b5e6-96231b3b80d8
Some editors create hidden file backups in the same
directory as the file, and it's annoying when cmake
errors on them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216941 91177308-0d34-0410-b5e6-96231b3b80d8
I've fixed most of the simple bugs and currently "check-llvm" test suite
has 26 failures, and "check-clang" suite has 5 failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216701 91177308-0d34-0410-b5e6-96231b3b80d8
This test was testing nothing, as only -Werror was ever
being added to the compiler flags.
You can see the final nitty-gritty compiler invocation in
CMakeFiles/CMakeOutput.log (for successful tests) and
CMakeFiles/CMakeError.log (for failed tests).
Before:
Building C object CMakeFiles/cmTryCompileExec3385359576.dir/src.c.o
/usr/bin/clang -fPIC -Wall -W -Wno-unused-parameter -Wwrite-strings -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -DC_WCOMMENT_ALLOWS_LINE_WRAP -Werror -o CMakeFiles/cmTryCompileExec3385359576.dir/src.c.o -c /home/nobled/code/llvm-b9/CMakeFiles/CMakeTmp/src.c
After:
Building C object CMakeFiles/cmTryCompileExec3385359576.dir/src.c.o
/usr/bin/clang -fPIC -Wall -W -Wno-unused-parameter -Wwrite-strings -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -DC_WCOMMENT_ALLOWS_LINE_WRAP -Werror -Wcomment -o CMakeFiles/cmTryCompileExec3385359576.dir/src.c.o -c /home/nobled/code/llvm-b9/CMakeFiles/CMakeTmp/src.c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216328 91177308-0d34-0410-b5e6-96231b3b80d8
clang has only been smart enough not to trigger -Wnon-virtual-dtor
warnings on final classes since r208449 (in clang 3.5). Building
with older versions is extremely noisy, so disable the warning
on those compilers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216327 91177308-0d34-0410-b5e6-96231b3b80d8
treated as errors (which is still the default). This is useful when
working on documentation that has existing errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215634 91177308-0d34-0410-b5e6-96231b3b80d8
use is deprecated in favour of llvm_map_components_to_libnames()
Although message(DEPRECATION "msg") would probably be a better fit this
does nothing if CMAKE_ERROR_DEPRECATED and CMAKE_WARNING_DEPRECATED are
both off, which is the default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214078 91177308-0d34-0410-b5e6-96231b3b80d8
of LLVM using CMake can easily find the tools directory.
LLVM_BUILD_TOOLS_BINARY_DIR was removed because it is now
superfluous.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213674 91177308-0d34-0410-b5e6-96231b3b80d8
clients of LLVM know if RTTI and/or EH were enabled in the build of
LLVM they are trying to link against.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213664 91177308-0d34-0410-b5e6-96231b3b80d8
to globally be controlled. Individual targets (e.g. ExceptionDemo) can
still override this by using LLVM_REQUIRE_RTTI and LLVM_REQUIRE_EH if
they need to be compiled with RTTI or exception handling respectively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213663 91177308-0d34-0410-b5e6-96231b3b80d8
Removing the native CMakeCache.txt causes the target to get re-run needlessly
on some systems. We'll want another solution for that part of the fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213099 91177308-0d34-0410-b5e6-96231b3b80d8
This adds support for building native artifacts when cross-compiling using the
popular side-by-side source directory layout (no symlinks, no nested
repositories).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213091 91177308-0d34-0410-b5e6-96231b3b80d8
It turns out this commit was fine. The problem was in the legacy build system (fixed r213010).
This reverts commit r213005.
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This broke one of the builds, presumably side-by-side modular CMake.
Investigating.
This reverts commit r212998.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213005 91177308-0d34-0410-b5e6-96231b3b80d8
clang r212997 incorporated these settings into its own build system. They no
longer need to be set from LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212998 91177308-0d34-0410-b5e6-96231b3b80d8
For example, c-index-test.exe requires just libclang.dll (its import library).
When libraries in libclang were not PRIVATE but PUBLIC, c-index-test required libraries transitive by libclang.
Note, on mingw with BUILD_SHARED_LIBS, library dependencies would become more strict.
In principle, required libraries should be "required in its source file".
This will help to detect missing dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212934 91177308-0d34-0410-b5e6-96231b3b80d8
On Win32.DLL, it points not lib but bin.
LIBRARY_OUTPUT_DIRECTORY affects add_library(MODULE), especially Win32.DLL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212903 91177308-0d34-0410-b5e6-96231b3b80d8
This -f group flag appears to influence linker flags, breaking the usual rules
and causing CMake's link invocation to fail during feature detection due to
missing link dependencies (msan_*).
Let's forcibly add it for now to get things the way they were before feature
detection started working.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212590 91177308-0d34-0410-b5e6-96231b3b80d8
When LLVM_ENABLE_TIMESTAMPS has been disabled we can prevent the preprocessor
from embedding dates, times and file timestamps.
There are a few motivations for this:
1) Validate the recent CMake feature detection bugfix from LLVM r212586 with
a flag that's not actually available everywhere.
2) Dogfood clang's new -Wdate-time warning from r210511 when bootstrapping.
3) Encourage reproducible builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212587 91177308-0d34-0410-b5e6-96231b3b80d8
add_flag_if_supported() and add_flag_or_print_warning() were effectively
no-ops, just returning the value of the first result (usually
'-fno-omit-frame-pointer') for all subsequent checks for different flags.
Due to the way CMake caches feature detection results, we need to provide
symbolic variable names which will persist the cached results. This commit
fixes feature detection using these two macros.
The feature checks now run and get stored correctly, and the correct output can
be observed in configure logs:
-- Performing Test C_SUPPORTS_FPIC
-- Performing Test C_SUPPORTS_FPIC - Success
-- Performing Test CXX_SUPPORTS_FPIC
-- Performing Test CXX_SUPPORTS_FPIC - Success
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212586 91177308-0d34-0410-b5e6-96231b3b80d8
FIXME: Make this configurable.
FIXME: "ENABLE_SHARED" doesn't make sense, since it is used just for plugins. We may rename it.
I introduced config.enable_shared in r120273.
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By default, CMake will set NDEBUG in Rel* builds and leave it off in
debug builds, so we shouldn't need to do anything ourselves.
Before this change, it was possible to a Debug build without assertions
(aka Debug-Asserts in the autoconf system) by configuring with
-DLLVM_ENABLE_ASSERTIONS=OFF, but this configuration isn't very useful.
You can still get the same effect by explicitly adding -DNDEBUG to
CFLAGS.
Differential Revision: http://reviews.llvm.org/D4257
Patch by Janusz Sobczak!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211919 91177308-0d34-0410-b5e6-96231b3b80d8
clang's own CMake setup handles this as of r210308.
The CMAKE_CROSSCOMPILING special-case will no longer be hard-coded. This was
clearly site-specific to someone's local configuration and should be passed in
at configure time if needed with e.g. -DLIBXML2_LIBRARIES=... (the libxml2
target I tried here doesn't even support liblzma so it's *way* off).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210309 91177308-0d34-0410-b5e6-96231b3b80d8
