This reverts commit r278330.

I made a change to the save temps output that is causing issues with the
bots. Didn't realize this because I had older output files sitting on
disk in my test output directory.

llvm-svn: 278331

Summary:
This introduces a resolution-based LTO API. The main advantage of this API over
existing APIs is that it allows the linker to supply a resolution for each
symbol in each object, rather than the combined object as a whole. This will
become increasingly important for use cases such as ThinLTO which require us
to process symbol resolutions in a more complicated way than just adjusting
linkage.

Patch by Peter Collingbourne.

Reviewers: rafael, tejohnson, mehdi_amini

Subscribers: lhames, tejohnson, mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D20268

Address review comments

llvm-svn: 278330

Add the $arch-registered-target features that clang uses to disable
tests that require a registered backend, so that we can run the sancov
tests on Windows. LLVM's lit suite did not appear to have a per-test way
to do this, and I would rather not split up the sancov tests into
architecture directories.

Split out of https://reviews.llvm.org/D23321

llvm-svn: 278271

COFF doesn't support weak linkage on functions.

llvm-svn: 278162

Followup from r277778, after Mehdi's comments.

Expand %ld64 to perform the necessary preload instead, that way new
tests do not need to worry about setting up DYLD_INSERT_LIBRARIES
themselves.

rdar://problem/24300926

llvm-svn: 277788

Green Dragon's darwin stage2 asan bot fails on some checks:
http://lab.llvm.org:8080/green/job/clang-stage2-cmake-RgSan_check

  test/tools/lto/hide-linkonce-odr.ll
  test/tools/lto/opt-level.ll

ERROR: Interceptors are not working. This may be because
AddressSanitizer is loaded too late (e.g. via dlopen)

To fix this, %ld64 needs to load 'libclang_rt.asan_osx_dynamic.dylib'
before libLTO.dylib, via DYLD_INSERT_LIBRARIES. This won't work by
updating config.environment, since some shim binary in the way scrubs
the env vars. Instead, provide the path to this lib through %asanrtlib,
which can then be used by tests directly with DYLD_INSERT_LIBRARIES.

rdar://problem/24300926

llvm-svn: 277778

For example, stop expanding 'opt' in -passes='require<opt-remark-emit>'.

llvm-svn: 276707

Reviewers: mehdi_amini

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D22245

llvm-svn: 275214

Reviewers: alexfh, wolfgangp, rengolin

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D22172

llvm-svn: 274949

The logic that sets up lit features for sanitizers is largely copied
between here and clang, except clang's was fixed some time ago to
handle multiple sanitizers (ie, Asan + Ubsan). This just makes the
code in LLVM consistent with how it's done in clang to avoid any
gotchas by users of this.

llvm-svn: 270510

to llvm-objdump. This section is created with -fembed-bitcode option.

This requires the use of libxar and the Cmake and lit support were crafted by
Chris Bieneman!

rdar://26202242

llvm-svn: 270491

This adds llvm-pdbdump to the list of tools which get printed with
the full path in verbose mode.  This makes it easier to take the
whole run line from verbose output and run it again without prepending
with the builds bin directory.

llvm-svn: 268250

We missed a handful of .mir tests that existed outside the
test/CodeGen/MIR directory.

Also fix the three powerpc .mir tests that nobody noticed were broken.

llvm-svn: 265350

llvm-svn: 264764

llvm-svn: 264758

llvm-svn: 262878

This is part of a new statistics gathering feature for the sanitizers.
See clang/docs/SanitizerStats.rst for further info and docs.

Differential Revision: http://reviews.llvm.org/D16174

llvm-svn: 257970

Differential Revision: http://reviews.llvm.org/D15909

llvm-svn: 257236

LLVM_ENABLE_TIMESTAMPS controls if timestamps are embedded into llvm's
binaries. Turning it off is useful for deterministic builds.

r246905 made it so that the define suddenly also controls if the binaries that
the llvm binaries _create_ embed timestamps or not – but this shouldn't be a
configure-time option. r256203/r256204 added a driver option to toggle this on
and off, so this patch now passes this driver option in LLVM_ENABLE_TIMESTAMPS
builds so that if LLVM_ENABLE_TIMESTAMPS is set, the build of LLVM is
deterministic – but the built clang can still write timestamps into other
executables when requested.

This also allows removing some of the test machinery added in r292012 to work
around this problem.

See PR24740 for background.
http://reviews.llvm.org/D15783

llvm-svn: 256958

llvm-svn: 256457

Note, ENABLE_TIMESTAMPS is either 1 or 0 in Makefile.config.

llvm-svn: 256138

Support for COFF timestamps was unintentionally broken in r246905 when
it was conditionally available depending on whether or not LLVM was
configured with LLVM_ENABLE_TIMESTAMPS.  However, Config/config.h was
never included which essentially broke the feature.  Due to lax testing,
the breakage was never identified until we observed strange failures
during incremental links of Chromium.

This issue is resolved by simply including Config/config.h in
WinCOFFObjectWriter and teaching lit that the MC/COFF/timestamp.s test
is conditionally supported depending on LLVM_ENABLE_TIMESTAMPS.  With
this in place, we can strengthen the test to ensure that it will not
accidentally get broken in the future.

This fixes PR25891.

llvm-svn: 256137

Revert r219171, "llvm/test/lit.cfg: Suppress dwarf stuff for targeting x86_64-mingw32 while investigating since r219108."

It has been fixed since r219280 by David Majnemer.

llvm-svn: 256112

llvm-svn: 254360

tool_path will be None for llvm-go if Go cannot be found

llvm-svn: 254190

llvm-svn: 254189

Summary:
When running tests, pass the GO_EXECUTABLE CMake
cache variable to llvm-go. The "go" binary may
not be in $PATH, or may be different to the one
passed to CMake.

Reviewers: pcc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D14041

llvm-svn: 254187

llvm-svn: 253525

Differential Revision: http://reviews.llvm.org/D14728

llvm-svn: 253354

FIXME: Improve llvm-symbolizer, or rename the feature "system-windows".
llvm-svn: 249937

Apparently system-windows was only a clang lit suite feature.

llvm-svn: 249797

Approved by: Rafael Espindola, Eric Christopher, Jim Grosbach, 
             Alex Rosenberg

llvm-svn: 248302

When building LLVM as a (potentially dynamic) library that can be linked against
by multiple compilers, the default triple is not really meaningful.
We allow to explicitely set it to an empty string when configuring LLVM.
In this case, said "target independent" tests in the test suite that are using
the default triple are disabled by matching the newly available feature
"default_triple".

Reviewers: probinson, echristo
Differential Revision: http://reviews.llvm.org/D12660

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 247775

Every time lit is invoked, I get warnings like so:

  lit.py: lit.cfg:286: note: Did not find llvm-go in /Users/bogner/build/llvm/./bin
  lit.py: lit.cfg:286: note: Did not find Kaleidoscope-Ch3 in /Users/bogner/build/llvm/./bin

Since these tools are only built in certain configs, these warnings
are superfluous. Change it so that we only warn about tools that are
built in all configs.

llvm-svn: 246684

Summary:
If run with other locales (like French),
the decode operation might fail

Reviewers: rafael

Differential Revision: http://reviews.llvm.org/D12432

llvm-svn: 246421

Wrong assumption. Consider --host=x86_64-linux --target=(i686|x86_64)-win32. See also r193459.

llvm-svn: 246352

backend to work.

Differential Revision: http://reviews.llvm.org/D12454

llvm-svn: 246350

the kaleidoscope 'library' functions aren't dead-stripped in release builds.

llvm-svn: 246201

llvm-svn: 246185

These will be run if LLVM_BUILD_EXAMPLES is enabled.

llvm-svn: 246175