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Dean Michael Berris f578aaa058 [XRay] Clean up XRay build configuration 
Summary:
This change spans both LLVM and compiler-rt, where we do the following:

- Add XRay to the LLVMBuild system, to allow for distributing the XRay
  trace loading library along with the LLVM distributions.

- Use `llvm-config` better in the compiler-rt XRay implementation, to
  depend on the potentially already-distributed LLVM XRay library.

While this is tested with the standalone compiler-rt build, it does
require that the LLVMXRay library (and LLVMSupport as well) are
available during the build. In case the static libraries are available,
the unit tests will build and work fine. We're still having issues with
attempting to use a shared library version of the LLVMXRay library since
the shared library might not be accessible from the standard shared
library lookup paths.

The larger change here is the inclusion of the LLVMXRay library in the
distribution, which allows for building tools around the XRay traces and
profiles that the XRay runtime already generates.

Reviewers: echristo, beanz

Subscribers: mgorny, hiraditya, mboerger, llvm-commits

Differential Revision: https://reviews.llvm.org/D52349

llvm-svn: 342859
 		2018-09-24 05:28:01 +00:00
clang [analyzer][UninitializedObjectChecker] Using the new const methods of ImmutableList 2018-09-23 09:16:27 +00:00
clang-tools-extra [clangd] Remember to serialize symbol origin in YAML. 2018-09-21 13:04:57 +00:00
compiler-rt [XRay] Clean up XRay build configuration 2018-09-24 05:28:01 +00:00
debuginfo-tests Revert "(Retry) Add a basic integration test for C++ smart pointers" 2018-08-20 19:53:33 +00:00
libclc configure: Rework support for gfx9+ devices that were added post LLVM 3.9 2018-09-15 22:02:01 +00:00
libcxx [libcxx] Fix the binder deprecation tests on Clang 5. 2018-09-23 23:17:48 +00:00
libcxxabi Update docs to reference new libc++ mailing lists. 2018-09-22 19:52:12 +00:00
libunwind [libunwind][NFC] Suppress unused parameter warnings 2018-09-22 18:18:34 +00:00
lld [COFF] Support linking to import libraries from GNU binutils 2018-09-21 22:01:06 +00:00
lldb Change type of m_user_expression_start_pos to size_t 2018-09-22 13:33:08 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm [XRay] Clean up XRay build configuration 2018-09-24 05:28:01 +00:00
openmp [OPENMP][NVPTX] Add support for lastprivates/reductions handling in SPMD constructs with lightweight runtime. 2018-09-21 14:11:41 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly fix the scan-build urls 2018-09-21 09:07:58 +00:00
README.md
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README.md

Low Level Virtual Machine (LLVM)

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.