[CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that...

[oota-llvm.git] / cmake / modules / AddLLVM.cmake

diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
index 45f6746948d25701c8bc7e92fe646b6b275d75c9..ebd17a0cf8562ab4d166890d8d64dff2253c2360 100644 (file)
--- a/cmake/modules/AddLLVM.cmake
+++ b/cmake/modules/AddLLVM.cmake
@@ -676,6 +676,13 @@ macro(add_llvm_target target_name)
   set( CURRENT_LLVM_TARGET LLVM${target_name} )
 endmacro(add_llvm_target)
 
+function(canonicalize_tool_name name output)
+  string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}/" "" nameStrip ${name})
+  string(REPLACE "-" "_" nameUNDERSCORE ${nameStrip})
+  string(TOUPPER ${nameUNDERSCORE} nameUPPER)
+  set(${output} "${nameUPPER}" PARENT_SCOPE)
+endfunction(canonicalize_tool_name)
+
 # Add external project that may want to be built as part of llvm such as Clang,
 # lld, and Polly. This adds two options. One for the source directory of the
 # project, which defaults to ${CMAKE_CURRENT_SOURCE_DIR}/${name}. Another to
@@ -686,56 +693,84 @@ macro(add_llvm_external_project name)
   if("${add_llvm_external_dir}" STREQUAL "")
     set(add_llvm_external_dir ${name})
   endif()
-  list(APPEND LLVM_IMPLICIT_PROJECT_IGNORE "${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}")
-  string(REPLACE "-" "_" nameUNDERSCORE ${name})
-  string(TOUPPER ${nameUNDERSCORE} nameUPPER)
-  #TODO: Remove this check in a few days once it has circulated through
-  # buildbots and people's checkouts (cbieneman - July 14, 2015)
-  if("${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}")
-    unset(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR CACHE)
-  endif()
-  if(NOT LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR)
-    set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}")
-  else()
-    set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR
+  canonicalize_tool_name(${name} nameUPPER)
+  if (LLVM_TOOL_${nameUPPER}_BUILD)
+    if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}/CMakeLists.txt)
+        add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir} ${add_llvm_external_dir})
+        set(LLVM_TOOL_${nameUPPER}_BUILD Off)
+    elseif(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR)
+      set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR
+        "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}"
         CACHE PATH "Path to ${name} source directory")
-  endif()
-  if (EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}/CMakeLists.txt)
-    option(LLVM_EXTERNAL_${nameUPPER}_BUILD
-           "Whether to build ${name} as part of LLVM" ON)
-    if (LLVM_EXTERNAL_${nameUPPER}_BUILD)
+      mark_as_advanced(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR)
       add_subdirectory(${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} ${add_llvm_external_dir})
+      set(LLVM_TOOL_${nameUPPER}_BUILD Off)
     endif()
   endif()
 endmacro(add_llvm_external_project)
 
 macro(add_llvm_tool_subdirectory name)
-  list(APPEND LLVM_IMPLICIT_PROJECT_IGNORE "${CMAKE_CURRENT_SOURCE_DIR}/${name}")
-  add_subdirectory(${name})
+  add_llvm_external_project(${name})
 endmacro(add_llvm_tool_subdirectory)
 
-macro(ignore_llvm_tool_subdirectory name)
-  list(APPEND LLVM_IMPLICIT_PROJECT_IGNORE "${CMAKE_CURRENT_SOURCE_DIR}/${name}")
-endmacro(ignore_llvm_tool_subdirectory)
+function(get_project_name_from_src_var var output)
+  string(REGEX MATCH "LLVM_EXTERNAL_(.*)_SOURCE_DIR"
+         MACHED_TOOL "${var}")
+  if(MACHED_TOOL)
+    set(${output} ${CMAKE_MATCH_1} PARENT_SCOPE)
+  else()
+    set(${output} PARENT_SCOPE)
+  endif()
+endfunction()
 
-function(add_llvm_implicit_external_projects)
+function(create_llvm_tool_options)
+  file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
+  foreach(dir ${sub-dirs})
+    if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
+      canonicalize_tool_name(${dir} name)
+      option(LLVM_TOOL_${name}_BUILD
+           "Whether to build ${name} as part of LLVM" On)
+      mark_as_advanced(LLVM_TOOL_${name}_BUILD)
+    endif()
+  endforeach()
+  get_cmake_property(variableNames VARIABLES)
+  foreach (variableName ${variableNames})
+    get_project_name_from_src_var(${variableName} projectName)
+    if(projectName)
+      option(LLVM_TOOL_${projectName}_BUILD
+           "Whether to build ${name} as part of LLVM" On)
+      mark_as_advanced(LLVM_TOOL_${name}_BUILD)
+    endif()
+  endforeach()
+endfunction(create_llvm_tool_options)
+
+function(add_llvm_implicit_projects)
   set(list_of_implicit_subdirs "")
   file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
   foreach(dir ${sub-dirs})
-    if(IS_DIRECTORY "${dir}")
-      list(FIND LLVM_IMPLICIT_PROJECT_IGNORE "${dir}" tool_subdir_ignore)
-      if( tool_subdir_ignore EQUAL -1
-          AND EXISTS "${dir}/CMakeLists.txt")
+    if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
+      canonicalize_tool_name(${dir} name)
+      if (LLVM_TOOL_${name}_BUILD)
         get_filename_component(fn "${dir}" NAME)
         list(APPEND list_of_implicit_subdirs "${fn}")
       endif()
     endif()
   endforeach()
 
+  get_cmake_property(variableNames VARIABLES)
+  foreach (variableName ${variableNames})
+    get_project_name_from_src_var(${variableName} projectName)
+    if(projectName)
+      string(TOLOWER ${projectName} projectName)
+      list(APPEND list_of_implicit_subdirs ${projectName})
+    endif()
+  endforeach()
+
+  list(REMOVE_DUPLICATES list_of_implicit_subdirs)
   foreach(external_proj ${list_of_implicit_subdirs})
     add_llvm_external_project("${external_proj}")
   endforeach()
-endfunction(add_llvm_implicit_external_projects)
+endfunction(add_llvm_implicit_projects)
 
 # Generic support for adding a unittest.
 function(add_unittest test_suite test_name)