llvm-config: Add --has-rtti option
[oota-llvm.git] / cmake / modules / AddLLVM.cmake
index dea560182a4bc970a4f0359b8ffd68f1a5972757..8d0cf7c561574e6d3e00677db9b6858322c51eb9 100644 (file)
@@ -1,5 +1,6 @@
 include(LLVMProcessSources)
 include(LLVM-Config)
+include(DetermineGCCCompatible)
 
 function(llvm_update_compile_flags name)
   get_property(sources TARGET ${name} PROPERTY SOURCES)
@@ -21,15 +22,13 @@ function(llvm_update_compile_flags name)
       list(APPEND LLVM_COMPILE_DEFINITIONS _HAS_EXCEPTIONS=0)
       list(APPEND LLVM_COMPILE_FLAGS "/EHs-c-")
     endif()
-    if (CLANG_CL)
-      # FIXME: Remove this once clang-cl supports SEH
-      list(APPEND LLVM_COMPILE_DEFINITIONS "GTEST_HAS_SEH=0")
-    endif()
   endif()
 
   # LLVM_REQUIRES_RTTI is an internal flag that individual
   # targets can use to force RTTI
+  set(LLVM_CONFIG_HAS_RTTI YES CACHE INTERNAL "")
   if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI))
+    set(LLVM_CONFIG_HAS_RTTI NO CACHE INTERNAL "")
     list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_RTTI=0)
     if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
       list(APPEND LLVM_COMPILE_FLAGS "-fno-rtti")
@@ -193,34 +192,43 @@ endfunction(add_link_opts)
 # Set each output directory according to ${CMAKE_CONFIGURATION_TYPES}.
 # Note: Don't set variables CMAKE_*_OUTPUT_DIRECTORY any more,
 # or a certain builder, for eaxample, msbuild.exe, would be confused.
-function(set_output_directory target bindir libdir)
-  # Do nothing if *_OUTPUT_INTDIR is empty.
-  if("${bindir}" STREQUAL "")
-    return()
-  endif()
+function(set_output_directory target)
+  cmake_parse_arguments(ARG "" "BINARY_DIR;LIBRARY_DIR;" "" ${ARGN})
 
-  # moddir -- corresponding to LIBRARY_OUTPUT_DIRECTORY.
+  # module_dir -- corresponding to LIBRARY_OUTPUT_DIRECTORY.
   # It affects output of add_library(MODULE).
   if(WIN32 OR CYGWIN)
     # DLL platform
-    set(moddir ${bindir})
+    set(module_dir ${ARG_BINARY_DIR})
   else()
-    set(moddir ${libdir})
+    set(module_dir ${ARG_LIBRARY_DIR})
   endif()
   if(NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".")
     foreach(build_mode ${CMAKE_CONFIGURATION_TYPES})
       string(TOUPPER "${build_mode}" CONFIG_SUFFIX)
-      string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi ${bindir})
-      string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li ${libdir})
-      string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} mi ${moddir})
-      set_target_properties(${target} PROPERTIES "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${bi})
-      set_target_properties(${target} PROPERTIES "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
-      set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${mi})
+      if(ARG_BINARY_DIR)
+        string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi ${ARG_BINARY_DIR})
+        set_target_properties(${target} PROPERTIES "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${bi})
+      endif()
+      if(ARG_LIBRARY_DIR)
+        string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li ${ARG_LIBRARY_DIR})
+        set_target_properties(${target} PROPERTIES "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
+      endif()
+      if(module_dir)
+        string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} mi ${module_dir})
+        set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${mi})
+      endif()
     endforeach()
   else()
-    set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${bindir})
-    set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${libdir})
-    set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${moddir})
+    if(ARG_BINARY_DIR)
+      set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${ARG_BINARY_DIR})
+    endif()
+    if(ARG_LIBRARY_DIR)
+      set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${ARG_LIBRARY_DIR})
+    endif()
+    if(module_dir)
+      set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${module_dir})
+    endif()
   endif()
 endfunction()
 
@@ -398,7 +406,7 @@ function(llvm_add_library name)
     set(windows_resource_file ${windows_resource_file} PARENT_SCOPE)
   endif()
 
-  set_output_directory(${name} ${LLVM_RUNTIME_OUTPUT_INTDIR} ${LLVM_LIBRARY_OUTPUT_INTDIR})
+  set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
   # $<TARGET_OBJECTS> doesn't require compile flags.
   if(NOT obj_name)
     llvm_update_compile_flags(${name})
@@ -627,7 +635,7 @@ macro(add_llvm_executable name)
   endif()
 
   set(EXCLUDE_FROM_ALL OFF)
-  set_output_directory(${name} ${LLVM_RUNTIME_OUTPUT_INTDIR} ${LLVM_LIBRARY_OUTPUT_INTDIR})
+  set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
   llvm_config( ${name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} )
   if( LLVM_COMMON_DEPENDS )
     add_dependencies( ${name} ${LLVM_COMMON_DEPENDS} )
@@ -724,12 +732,10 @@ function(canonicalize_tool_name name output)
   set(${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
-# enable or disable building it with everything else.
-# Additional parameter can be specified as the name of directory.
-macro(add_llvm_external_project name)
+# Custom add_subdirectory wrapper
+# Takes in a project name (i.e. LLVM), the the subdirectory name, and an
+# and an optional path if it differs from the name.
+macro(add_llvm_subdirectory project type name)
   set(add_llvm_external_dir "${ARGN}")
   if("${add_llvm_external_dir}" STREQUAL "")
     set(add_llvm_external_dir ${name})
@@ -737,39 +743,48 @@ macro(add_llvm_external_project name)
   canonicalize_tool_name(${name} nameUPPER)
   if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}/CMakeLists.txt)
     # Treat it as in-tree subproject.
-    option(LLVM_TOOL_${nameUPPER}_BUILD
-           "Whether to build ${name} as part of LLVM" On)
-    mark_as_advanced(LLVM_TOOL_${name}_BUILD)
-    if(LLVM_TOOL_${nameUPPER}_BUILD)
+    option(${project}_${type}_${nameUPPER}_BUILD
+           "Whether to build ${name} as part of ${project}" On)
+    mark_as_advanced(${project}_${type}_${name}_BUILD)
+    if(${project}_${type}_${nameUPPER}_BUILD)
       add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir} ${add_llvm_external_dir})
       # Don't process it in add_llvm_implicit_projects().
-      set(LLVM_TOOL_${nameUPPER}_BUILD OFF)
+      set(${project}_${type}_${nameUPPER}_BUILD OFF)
     endif()
   else()
     set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR
       "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}"
       CACHE PATH "Path to ${name} source directory")
-    set(LLVM_TOOL_${nameUPPER}_BUILD_DEFAULT ON)
+    set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT ON)
     if(NOT LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR OR NOT EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR})
-      set(LLVM_TOOL_${nameUPPER}_BUILD_DEFAULT OFF)
+      set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT OFF)
     endif()
     if("${LLVM_EXTERNAL_${nameUPPER}_BUILD}" STREQUAL "OFF")
-      set(LLVM_TOOL_${nameUPPER}_BUILD_DEFAULT OFF)
+      set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT OFF)
     endif()
-    option(LLVM_TOOL_${nameUPPER}_BUILD
+    option(${project}_${type}_${nameUPPER}_BUILD
       "Whether to build ${name} as part of LLVM"
-      ${LLVM_TOOL_${nameUPPER}_BUILD_DEFAULT})
-    if (LLVM_TOOL_${nameUPPER}_BUILD)
+      ${${project}_${type}_${nameUPPER}_BUILD_DEFAULT})
+    if (${project}_${type}_${nameUPPER}_BUILD)
       if(EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR})
         add_subdirectory(${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} ${add_llvm_external_dir})
       elseif(NOT "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}" STREQUAL "")
         message(WARNING "Nonexistent directory for ${name}: ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}")
       endif()
       # FIXME: It'd be redundant.
-      set(LLVM_TOOL_${nameUPPER}_BUILD Off)
+      set(${project}_${type}_${nameUPPER}_BUILD Off)
     endif()
   endif()
-endmacro(add_llvm_external_project)
+endmacro()
+
+# 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
+# enable or disable building it with everything else.
+# Additional parameter can be specified as the name of directory.
+macro(add_llvm_external_project name)
+  add_llvm_subdirectory(LLVM TOOL ${name} ${ARGN})
+endmacro()
 
 macro(add_llvm_tool_subdirectory name)
   add_llvm_external_project(${name})
@@ -785,16 +800,20 @@ function(get_project_name_from_src_var var output)
   endif()
 endfunction()
 
-function(create_llvm_tool_options)
+function(create_subdirectory_options project type)
   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)
+      option(${project}_${type}_${name}_BUILD
+           "Whether to build ${name} as part of ${project}" On)
+      mark_as_advanced(${project}_${type}_${name}_BUILD)
     endif()
   endforeach()
+endfunction(create_subdirectory_options)
+
+function(create_llvm_tool_options)
+  create_subdirectory_options(LLVM TOOL)
 endfunction(create_llvm_tool_options)
 
 function(add_llvm_implicit_projects)
@@ -834,7 +853,7 @@ function(add_unittest test_suite test_name)
 
   add_llvm_executable(${test_name} ${ARGN})
   set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
-  set_output_directory(${test_name} ${outdir} ${outdir})
+  set_output_directory(${test_name} BINARY_DIR ${outdir} LIBRARY_DIR ${outdir})
   target_link_libraries(${test_name}
     gtest
     gtest_main
@@ -1038,8 +1057,11 @@ function(llvm_install_symlink name dest)
     set(component ${name})
   endif()
 
+  set(full_name ${name}${CMAKE_EXECUTABLE_SUFFIX})
+  set(full_dest ${dest}${CMAKE_EXECUTABLE_SUFFIX})
+
   install(SCRIPT ${INSTALL_SYMLINK}
-          CODE "install_symlink(${name} ${dest})"
+          CODE "install_symlink(${full_name} ${full_dest} bin)"
           COMPONENT ${component})
 
   if (NOT CMAKE_CONFIGURATION_TYPES AND NOT ARG_ALWAYS_GENERATE)