LLVM r263566 adds a generic PACKAGE_VENDOR configuration which can be used to specify the vendor for LLVM toolchain tools. This change defaults the CLANG_VENDOR to the PACKAGE_VENDOR so that you don't have to specify both when building a package.

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This is needed to build the gold plugin in multi-stage builds.

Patch by Mike Edwards

Differential Revision: http://reviews.llvm.org/D17655

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This appears to be passing '-Wl,-order_file' to Linux link commands,
which then causes the linker to silently, behind the scenes, write the
output to 'rder_file' instead of somewhere else. Will work with Chris to
figure out the proper support for this, but so far there are numerous
people who can't get Clang to update when they build because of this.

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Summary:
This commit re-lands r259862. The underlying cause of the build breakage was an incorrectly written capabilities test. In tools/Driver/CMakeLists.txt I was attempting to check if a linker flag worked, the test was passing it to the compiler, not the linker. CMake doesn't have a linker test, so we have a hand-rolled one.

Original Patch Review: http://reviews.llvm.org/D16896

Original Summary:
With this change generating clang order files using dtrace uses the following workflow:

cmake <whatever options you want>

ninja generate-order-file

ninja clang

This patch works by setting a default path to the order file (which can be overridden by the user). If the order file doesn't exist during configuration CMake will create an empty one.

CMake then ties up the dependencies between the clang link job and the order file, and generate-order-file overwrites CLANG_ORDER_FILE with the new order file.

Reviewers: bogner

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D16999

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This was originally a hacky if(APPLE) block. Now that we have an option for enabling LTO, it is better to properly gate this.

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With this option one can optionally override the architecture dependent
default library to use if no -stdlib= is provided on compiler invocation.

Differential Revision: http://reviews.llvm.org/D15920

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For multi-stage builds we need to pass any overridden source directory variables. Without passing these the subsequent stages won't find the project sources.

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Seriously... CMake... You're on my list...

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This reverts commit r259862, and attempts to fix builder CMakeCaches.

Will try this again some other time...

Conflicts:

	CMakeLists.txt
	tools/driver/CMakeLists.txt

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This change will catch any bots that generated the order file that GNU ld doesn't like and delete it before trying to generate one that I think GNU ld will deal with.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@259871 91177308-0d34-0410-b5e6-96231b3b80d8

I can't reproduce this locally, but I think this may fix it.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@259870 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
With this change generating clang order files using dtrace uses the following workflow:

cmake <whatever options you want>

ninja generate-order-file

ninja clang

This patch works by setting a default path to the order file (which can be overridden by the user). If the order file doesn't exist during configuration CMake will create an empty one.

CMake then ties up the dependencies between the clang link job and the order file, and generate-order-file overwrites CLANG_ORDER_FILE with the new order file.

Reviewers: bogner

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D16896

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@259862 91177308-0d34-0410-b5e6-96231b3b80d8

This is the right location for platform-specific files.

Also, search for LLVM's CMake files in this directory.

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I can't apply export to tools without getting some strange CMake spew. The behavior here is a bit unexpected. CMake is complaining about static link dependencies not being in the same export set, which shouldn't matter.

In the short term it is easier to just remove the export set (which was just added in r258209) while I sort this out.

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[CMake] Creating add_clang_tool macro to wrap add_clang_executable and generate install actions and targets.

This change brings forward the LLVM convention that "executables" are just runnable binaries, and "tools" are executables that are part of the project's install.

Having this abstraction will allow us to simplify some of the tool CMakeLists files, and it will standardize some of the install behaviors.

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Only set -DSVN_REVISION if CLANG_APPEND_VC_REV=On

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This makes it so if you disable building libclang you won't install the headers as part of the 'install' target.

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This matches autoconf's ability to put clang revisions in the clang --version spew.

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Summary:
This patch adds support for the clang multi-stage bootstrapping to support PGO profdata generation, and can build a 2 or 3 stage compiler.

With this patch applied you can configure your build directory with the following invocation of CMake:

cmake -G <generator> -C <path_to_clang>/cmake/caches/PGO.cmake <source dir>

After configuration the following additional targets will be generated:

stage2-instrumented:
Builds a stage1 x86 compiler, runtime, and required tools (llvm-config, llvm-profdata) then uses that compiler to build an instrumented stage2 compiler.

stage2-instrumented-generate-profdata:
Depends on "stage2-instrumented" and will use the instrumented compiler to generate profdata based on the training files in <clang>/utils/perf-training

stage2:
Depends on "stage2-instrumented-generate-profdata" and will use the stage1 compiler with the stage2 profdata to build a PGO-optimized compiler.

stage2-check-llvm:
Depends on stage2 and runs check-llvm using the stage3 compiler.

stage2-check-clang:
Depends on stage2 and runs check-clang using the stage3 compiler.

stage2-check-all:
Depends on stage2 and runs check-all using the stage3 compiler.

stage2-test-suite:
Depends on stage2 and runs the test-suite using the stage3 compiler (requires in-tree test-suite).

Reviewers: bogner, silvas, chandlerc

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D15584

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This reverts commit r256069, which was an unintentional tag along on
another commit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@256088 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
This patch adds support for the clang multi-stage bootstrapping to support PGO profdata generation, and can build a 2 or 3 stage compiler.

With this patch applied you can configure your build directory with the following invocation of CMake:

cmake -G <generator> -C <path_to_clang>/cmake/caches/PGO.cmake <source dir>

After configuration the following additional targets will be generated:

stage2-instrumented:
Builds a stage1 x86 compiler, runtime, and required tools (llvm-config, llvm-profdata) then uses that compiler to build an instrumented stage2 compiler.

stage2-instrumented-generate-profdata:
Depends on "stage2-instrumented" and will use the instrumented compiler to generate profdata based on the training files in <clang>/utils/perf-training

stage2:
Depends on "stage2-instrumented-generate-profdata" and will use the stage1 compiler with the stage2 profdata to build a PGO-optimized compiler.

stage2-check-llvm:
Depends on stage2 and runs check-llvm using the stage3 compiler.

stage2-check-clang:
Depends on stage2 and runs check-clang using the stage3 compiler.

stage2-check-all:
Depends on stage2 and runs check-all using the stage3 compiler.

stage2-test-suite:
Depends on stage2 and runs the test-suite using the stage3 compiler (requires in-tree test-suite).

Reviewers: bogner, silvas, chandlerc

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D15584

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When you start chaining bootstrap stages the CMake-generated targets get unwieldy. This change supports naming the bootstrap targets and creating wrapper targets in the top-level build file.

Without this patch the default target generated for a second stage build was "bootstrap" with it the target is "stage2".

Also with some CMake goop setting CLANG_BOOTSTRAP_TARGETS, you can expose third stage targets as "stage3" instead of "bootstrap-bootstrap"

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Adding optional dependency for the bootstrap targets on compiler-rt.

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This allows exposing a custom list of targets from the next stage build up.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@255799 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
This patch adds support for using LIT to drive generating PGO profile data for clang.

This first pass implementation should work on Linux and Unix based platforms. If you build clang using CMake with LLVM_BUILD_INSTRUMENTED=On the CMake build generates a generate-profdata target that will use the just-built clang to build any test files (see hello_world.cpp as an example). Each test compile will generate profraw files for each clang process. After all tests have run CMake will merge the profraw files using llvm-profdata.

Future opportunities for extension:
* Support for Build->Profile->Build bootstrapping
* Support for linker order file generation using a similar mechanism and the same training data
* Support for Windows

Reviewers: dexonsmith, friss, bogner, cmatthews, vsk, silvas

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D15462

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@255740 91177308-0d34-0410-b5e6-96231b3b80d8

Patch turns on OpenMP support in clang by default after fixing OpenMP buildbots.
Differential Revision: http://reviews.llvm.org/D13803


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This adds support for three types of argument specifications for bootstrap builds:

(1) Arguments prefixed with BOOTSTRAP_* will be passed through with the leading BOOTSTRAP_ removed.
(2) CLANG_BOOTSTRAP_PASSTHROUGH can specify a list of variables to be passed through as they are set.
(3) BOOTSTRAP_DEFAULT_PASSTHROUGH is a list of some default passthrough variables that are always passed through. Those variables include the version string and should only specify variables that are always expected to be the same between the stage1 and stage2

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[CMake] If 'INTERNAL_INSTALL_PREFIX' is set, use it for determining the install destination of c-index-test and the libclang headers.

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Also don't create libclang dylib symlinks on darwin.

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This option enables full verbosity in recursive CMake builds.

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Setting CLANG_TOOL_*_BUILD=Off on the CMake command line will disable inclusion of a clang/tools subdirectory.

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Currently, cmake config files are only generated and installed when CLANG_BUILD_STANDALONE set, which means config file will not be generated or installed when clang is built with llvm. This change removes that restriction.

Thanks to Don Hinton <hintonda@gmail.com>

http://reviews.llvm.org/D13453

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This just fixes a small error in constructing the path to the LTO library.

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The target "check-clang-tools" is affected by CLANG_INCLUDE_TESTS but it was undefined in 1st configuration procedure.

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This should make bootstrap builds work with multi-configuration generators.

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Generation of clang symlinks now uses add_clang_symlink macro which uses add_llvm_symlink. Also the list of symlinks to generate is configurable via CLANG_LINKS_TO_CREATE.

This re-lands r248015, with fixes for clang symlinks to always be generated as part of the clang and install-clang targets.

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This reverts commit r248015, because it broke bots. I'll revise and recommit.

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Generation of clang symlinks now uses add_clang_symlink macro which uses add_llvm_symlink. Also the list of symlinks to generate is configurable via CLANG_LINKS_TO_CREATE.

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