This reverts commit r286123, accidentally commited while testing itself...

llvm-svn: 286124

Summary:
Some changes are made to cmake, especially the addition of a new
LLVM_ENABLE_PROJECTS option that makes the build system aware of
the monorepo directory structure.

Also a new script is added in llvm/utils/git-svn/. When present in
the $PATH, it enables a `git llvm` command. It is providing at this
point only the ability to push from the git monorepo: `git llvm push`.
It is intended to evolves with more features, for instance I plan on
features like `git llvm show r284955` to help working with sequential
revision numbers.
The push feature is taken from Justin Lebar's script available here:
https://github.com/jlebar/llvm-repo-tools/

Reviewers: jlebar

Subscribers: mgorny, modocache, llvm-commits

Differential Revision: https://reviews.llvm.org/D26334

llvm-svn: 286123

At least with cmake 3.6.1, the default build type setting was having no
effect; the generated CMakeCache.txt still had an empty CMAKE_BUILD_TYPE.
Force the variable to be set to achieve the desired behavior.

Differential Revision: https://reviews.llvm.org/D26200

llvm-svn: 285789

This patch was produced in conjunction with Michał Górny. It should resolve the issues that were trying to be solved by D25304.

This moves rpath handling into `llvm_add_library` and `add_llvm_executable` so that it is available to all projects using AddLLVM whether built in-tree or out-of-tree.

llvm-svn: 285714

This contains just enough for lib/Target/RISCV to compile. Notably a basic 
RISCVTargetMachine and RISCVTargetInfo. At this point you can attempt llc 
-march=riscv32 myinput.ll and will find it fails due to the lack of 
MCAsmInfo.

See http://lists.llvm.org/pipermail/llvm-dev/2016-August/103748.html for 
further discussion

Differential Revision: https://reviews.llvm.org/D23560

llvm-svn: 285712

The installhdrs target was inconsistently named and would behave
differently depending on whether or not you ran a build first. This
renames it to install-llvm-headers to match other target names and
adds a dependency on intrinsics_gen so that it will always install the
same set of things.

llvm-svn: 285035

Declare the LLVM_CMAKE_PATH to the source directory location of CMake
files, in order to make it possible to easily use them in subprojects.
Such a variable is already declared in most of LLVM projects
(and inconsistently mixed with direct source tree references), including
Clang, LLDB, compiler-rt, libcxx... Declaring it inside main LLVM tree
makes it possible to avoid having to declare fallback values or use
conditionals in those projects.

It should be noted that in some of the subprojects LLVM_CMAKE_PATH is
used to reference generated LLVMConfig.cmake file. However, these
references are conditional to stand-alone builds and explicitly
including this file is unnecessary in combined builds.

Differential Revision: https://reviews.llvm.org/D25724

llvm-svn: 284581

Differential Revision: https://reviews.llvm.org/D25354

llvm-svn: 283608

Hans reported an issue with r282510 on the list. This should resolve the issue.

llvm-svn: 282552

Support overriding the Doxygen & OCamldoc install directories,
and provide a more FHS-compliant defaults for both of them. This extends
r282240 that added this override for Sphinx-built documentation.

LLVM_INSTALL_DOXYGEN_HTML_DIR and LLVM_INSTALL_OCAMLDOC_HTML_DIR are
added, to control the location where Doxygen-generated and
OCamldoc-generated HTML docs are installed appropriately. They both
specify CMake-style install paths, and therefore can either by relative
to the install prefix or absolute.

The new defaults are subdirectories of share/doc/llvm, and replace
the previous directories of 'docs/html' and 'docs/ocaml/html' that
resulted in creating invalid '/usr/docs' that furthermore lacked proper
namespacing for the LLVM package. The new defaults are consistent with
the ones used for Sphinx HTML documentation, differing only in the last
component. Since the 'html' subdirectory is already used for Sphinx
docs, the 'doxygen-html' and 'ocaml-html' directories are used instead.

Differential Revision: https://reviews.llvm.org/D24935

llvm-svn: 282536

Summary:
The previous output was confusing as it would output "Taget triple:
x86_64-unknown-linux-gnu" even when LLVM_HOST_TRIPLE or
LLVM_DEFAULT_TARGET_TRIPLE were set on the CMake command line

Patch by: Alex Richardson!

Reviewers: beanz

Subscribers: Eugene.Zelenko

Differential Revision: https://reviews.llvm.org/D17067

llvm-svn: 282516

llvm-svn: 280746

My previous attempt at this connected the sub-project check targets to the test-depends target instead of to the check-all target. That resulted in the tests running multiple times on bots that built "test-depends" and "check-all" in separate build invocations.

llvm-svn: 280392

llvm-svn: 279756

Patch by Michael Gorny.

llvm-svn: 279544

Summary:
Add Lanai backend to default targets.

Discussion of proposal: http://lists.llvm.org/pipermail/llvm-dev/2016-July/102480.html. ISA added in r279149.

Reviewers: jyknight, rengolin, eliben, chandlerc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D22530

llvm-svn: 279498

The Xcode and Visual Studio generators always log "-- No build type selected, default to Debug". This is because CMake doesn't initialize "CMAKE_CONFIGURATION_TYPES" until the generator's EnableLanguage call gets hit.

The first place EnableLanguage gets hit in our configuration is in the project() call. Since CMAKE_BUILD_TYPE isn't used until after we call project() it is safe to just move this check down a bit.

llvm-svn: 279110

libc++.so is now a linker script that includes -lc++abi if necessary.

Differential Revision: https://reviews.llvm.org/D22861

llvm-svn: 277714

This patch has the following changes

The CMake variable LLVM_CCACHE_BUILD is set to OFF by default.
Set this to ON for a ccache enabled build

CCACHE_CPP2 is required to compile the source file directly instead
of compiling the preprocessed file. This will help WERROR is turned ON
for a host clang compiler

The below two options makes more sense in the context of a buildbot

CCACHE_HASHDIR is required to maintain the separate cached data across
builders. This will also help the debuggers to point to the correct source
location

CCACHE_SIZE is important in the perspective of buildbot to increase the
limit on the amount of data to hold in cache for faster compilation

CCACHE_DIR is used to save the cached data to a specific directory.

llvm-svn: 277389

Differential revision: https://reviews.llvm.org/D22896

llvm-svn: 277093

OS X 10.11 has a feature named System Integrity Protection. The goal of the feature is to make system binaries immutable (even as root). One part of this is that protected binaries do not receive DYLD_* environment variables because the kernel scrubs them before process launch.

This causes problems for LTO bootstrap builds on Darwin that try to use the just-built libLTO with the host ar, ranlib, or libtool.

This patch addresses two problems.

(1) The tools themselves aren't protected binaries but the shim tools installed at / are, so we need to call xcrun -find to find libtool instead of using the one CMake finds.

(2) Some build tools (ninja and make) use /bin/sh to invoke their subprocesses. Since /bin/sh is a system binary, the kernel scrubs the DYLD envars from their environment. To work around this we need to set the environment variables as part of the archiver commands, so the envars are set by the shell process instead of on the shell process.

llvm-svn: 276710

It's been pointed out that arbitrarily spraying raw profiles into a
build directory is insane. Doing this wastes a tremendous amount of
space and is also very lossy, since the test harness tends to wipe away
temporary sub-directories (which usually contain relevant profile data).

The new default is a `profiles` directory inside of the build dir.

llvm-svn: 276504

[cmake] Move the including of utils/unittests under LLVM_INCLUDE_UTILS instead of LLVM_INCLUDE_TESTS.

This does not change anything by default since LLVM_INCLUDE_UTILS is already set
to TRUE by default. In addition, since LLVM_INCLUDE_TESTS => LLVM_INCLUDE_UTILS,
the only way that this can cause changes is in the case where LLVM_INCLUDE_UTILS
is set to TRUE, but LLVM_INCLUDE_TESTS is FALSE. In that case, building gtest is
not a huge cost.

The reason to do this is that without this change, one can not turn off
LLVM_INCLUDE_TESTS in downstream projects that also use gtest for unittests. It
also just in general makes more sense since LLVM_INCLUDE_UTILS gates FileCheck
and other utilities that are along the lines of gtest.

Additionally from talking with chandlerc, this was not done for any specific
reason, so there is no reason not to do it and lots of benefit to doing it.

llvm-svn: 276342

Previously LLVM_BUILD_GLOBAL_ISEL was a boolean variable and although,
this is strictly identical to an option, it did not convey the
information that the user may set it. Options are here for that.

llvm-svn: 276306

Patch by Andrew Paprocki!

Differential Revision: https://reviews.llvm.org/D18359

llvm-svn: 276045

Differential Revision: https://reviews.llvm.org/D21821

llvm-svn: 275827

This option is the equivalent option to LLVM_BUILD_TOOLS but for executables
created via add_llvm_utility.

This is a useful tool for improving compile time in situations where LLVM is
used as a library and no testing tools are needed.

It follows the exact same implemention model as LLVM_BUILD_TOOLS.

Since the option is by default set to on, no behavior is changed unless one sets
it from the command line to be false.

llvm-svn: 275007

When compiling with modules, header A and B can be in the same module M.
B depends on intrinsics_gen and A doesn't. Compiling a source file #include-ing
header A, we implicitly request module M to be built. It puts header A and B in
the same TU and tries to build them. Since B depends on intrinsics_gen (which
might not be built yet) we run into build failures.

This should fix our modules buildbot.

Patch reviewed by Chris Bieneman.

llvm-svn: 274270

This flag is only effective in builds with debug info and modules.
The default is On for Darwin only.

rdar://problem/27019000

llvm-svn: 274244

On Darwin it is currently impossible to build LLVM with modules
because the Darwin system module map is not compatible with
-fmodules-local-submodule-visibility at this point in time.  This
patch makes the flag optional and off by default on Darwin so it
becomes possible to build LLVM with modules again.

http://reviews.llvm.org/D21827
rdar://problem/27019000

llvm-svn: 274196

Summary:
There are a few LLVM projects that produce runtime libraries. Ideally
runtime libraries should be built differently than other projects,
specifically they should be built using the just-built toolchain.

There is support for building compiler-rt in this way from the clang
build. Moving this logic into the LLVM build is interesting because it
provides a simpler way to extend the just-built toolchain to include
LLD and the LLVM object file tools.

Once this functionality is better fleshed out and tested we’ll want to
encapsulate it in a module that can be used for clang standalone
builds, and we’ll want to make it the default way to build compiler-rt.

With this patch applied there is no immediate change in the build.
Moving compiler-rt out from llvm/projects into llvm/runtimes enables
the functionality.

This code has a few improvements over the method provided by
LLVM_BUILD_EXTERNAL_COMPILER_RT. Specifically the sub-ninja command is
always invoked, so changes to compiler-rt source files will get built
properly, so this patch can be used for iterative development with
just-built tools.

This first patch only works with compiler-rt. Support for other
runtime projects will be coming in follow-up patches.

Reviewers: chandlerc, bogner

Subscribers: kubabrecka, llvm-commits

Differential Revision: http://reviews.llvm.org/D20992

llvm-svn: 273620

Differential Revision: http://reviews.llvm.org/D20993

llvm-svn: 272599

This just removes some redundant checks and updates warning text.

llvm-svn: 272218

Now that we are on CMake 3.4.3 we no longer need a version check around this.

llvm-svn: 272211

This patch adds a new option LLVM_TOOLS_INSTALL_DIR which allows customizing the location executables and symlinks get installed to. This adds the functionality provided by autoconf's --bindir flag.

This patch is based on patches from and collaboration with Tony Kelman, and replaces http://reviews.llvm.org/D20934.

llvm-svn: 272200

Summary:
This is as per the discussions on developer lists:

http://lists.llvm.org/pipermail/llvm-dev/2016-April/098780.html
http://lists.llvm.org/pipermail/llvm-dev/2016-May/100058.html

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D20822

llvm-svn: 271325

Summary:
As per the discussion on LLVM-dev this patch proposes removing LLVM_ENABLE_TIMESTAMPS.

The only complicated bit of this patch is the Windows support. On windows we used to log an error if /INCREMENTAL was passed to the linker when timestamps were disabled.

With this change since timestamps in code are always disabled we will always compile on windows with /Brepro unless /INCREMENTAL is specified, and we will log a warning when /INCREMENTAL is specified to notify the user that the build will be non-deterministic.

See: http://lists.llvm.org/pipermail/llvm-dev/2016-May/098990.html

Reviewers: bogner, silvas, rnk

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D19892

llvm-svn: 268670

This backend was supposed to generate C++ code which will re-construct
the LLVM IR passed as input. This seems to me to have very marginal
usefulness in the first place.

However, the code has never been updated to use IRBuilder, which makes
its current value negative -- people who look at the output may be
steered to use the *wrong* C++ APIs to construct IR.

Furthermore, it's generated code that doesn't compile since at least
2013.

Differential Revision: http://reviews.llvm.org/D19942

llvm-svn: 268631

Summary:
Before this change certain Polly variables have been used both as user-facing
CACHED cmake variables as well as uncached internal variables. Even though
this seems to have worked OK in practice, the behavior only worked due to
one variable shadowing the other. This behavior has been found confusing.
To make the use of cmake variables more clear we now prefix the cached, user
facing variables with LLVM_ as it is common habit for LLVM options and also
moved the _POLLY_ term to the beginning to ensure related options are sorted
after each other. The variables that control the behavior of LLVM/Polly are then
set by forwarding the values set in the user facing option variables.
As a result, Polly is now enabled with LLVM_POLLY_BUILD instead of BUILD_POLLY
and the linking behavior of Polly is controlled with LLVM_POLLY_LINK_INTO_TOOLS
instead of LINK_POLLY_INTO_TOOLS.

Reviewers: bogner, Meinersbur

Subscribers: pollydev, llvm-commits

Differential Revision: http://reviews.llvm.org/D19907

llvm-svn: 268537

This change is based on the discussion from http://lists.llvm.org/pipermail/llvm-dev/2016-May/098990.html.

The goal is to make the default LLVM configuration build deterministically.

llvm-svn: 268441