[BOLT] Getting open-source ready

Summary:
BOLT sources are being moved under tools/llvm-bolt/src
and tools/llvm-bolt will contain more files such as LICENSE.txt,
README.txt, etc.

Remove trailing white spaces from our sources.

Create llvm.patch by running

  > git diff f137ed238db11440f03083b1c88b7ffc0f4af65e include lib > \
    tools/llvm-bolt/llvm.patch

README.txt has instructions on checking out sources and applying the
patch.

(cherry picked from FBD7878380)

1 files changed, 1 insertions, 92 deletions

diff --git a/bolt/CMakeLists.txt b/bolt/CMakeLists.txt
index 3804b16f2e8f..febd4f0ab6f8 100644
--- a/bolt/CMakeLists.txt
+++ b/bolt/CMakeLists.txt
@@ -1,92 +1 @@
-add_subdirectory(merge-fdata)
-add_subdirectory(Passes)
-add_subdirectory(Target)
-
-# Get the current git revision for BOLT.
-function(get_version ofn)
-  find_program(git_executable NAMES git git.exe git.cmd)
-  if (git_executable)
-    execute_process(COMMAND ${git_executable} rev-parse HEAD
-      WORKING_DIRECTORY ${LLVM_MAIN_SRC_DIR}
-      TIMEOUT 5
-      RESULT_VARIABLE git_result
-      OUTPUT_VARIABLE git_output)
-      if( git_result EQUAL 0 )
-        string(STRIP "${git_output}" git_ref_id)
-        set(BOLT_REVISION "${git_ref_id}")
-      endif()
-  endif()
-
-  # If we can't find a revision, set it to "<unknown>".
-  if (NOT BOLT_REVISION)
-    set(BOLT_REVISION "<unknown>")
-  endif()
-
-  add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
-    COMMAND echo '"${BOLT_REVISION}"' > ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
-    COMMENT "Generating bogus ${ofn}..."
-  )
-
-  set(VERSION_OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn} PARENT_SCOPE)
-
-  # `make clean' must remove all those generated files:
-  set_property(DIRECTORY APPEND
-    PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${ofn})
-  set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${ofn} PROPERTIES
-    GENERATED 1)
-endfunction()
-
-# Creates a public target for generating the revision file.
-function(add_public_gen_version_target target)
-  add_custom_target(${target} DEPENDS ${VERSION_OUTPUT})
-  set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} ${target} PARENT_SCOPE)
-endfunction()
-
-get_version(BoltRevision.inc)
-add_public_gen_version_target(GenBoltRevision)
-
-set(LLVM_LINK_COMPONENTS
-  ${LLVM_TARGETS_TO_BUILD}
-  BOLTPasses
-  BOLTTargetAArch64
-  BOLTTargetX86
-  CodeGen
-  Core
-  DebugInfoDWARF
-  MC
-  MCDisassembler
-  MCParser
-  Object
-  Orcjit
-  Support
-  )
-
-add_llvm_tool(llvm-bolt
-  llvm-bolt.cpp
-  BinaryBasicBlock.cpp
-  BinaryContext.cpp
-  BinaryData.cpp
-  BinaryFunction.cpp
-  BinaryFunctionProfile.cpp
-  BinaryPassManager.cpp
-  BinarySection.cpp
-  BoltDiff.cpp
-  CacheMetrics.cpp
-  DataAggregator.cpp
-  DataReader.cpp
-  DebugData.cpp
-  DWARFRewriter.cpp
-  Exceptions.cpp
-  JumpTable.cpp
-  MCPlusBuilder.cpp
-  ProfileReader.cpp
-  ProfileWriter.cpp
-  Relocation.cpp
-  RewriteInstance.cpp
-
-  DEPENDS
-  intrinsics_gen
-  )
-
-add_llvm_tool_symlink(perf2bolt llvm-bolt)
-add_llvm_tool_symlink(llvm-boltdiff llvm-bolt)
+add_subdirectory(src)