Unlike the other instructions, GEP really does need to look at the type of a

[oota-llvm.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 95f36a2bcd532fcbf42b728a5cdfbfbe4490e55b..2e2cf358e413e80fbec949222f5bac24f18e008d 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,5 @@
+# See docs/CMake.html for instructions about how to build LLVM with CMake.
+
 project(LLVM)
 cmake_minimum_required(VERSION 2.6.1)
 
@@ -15,6 +17,8 @@ This process created the file `CMakeCache.txt' and the directory `CMakeFiles'.
 Please delete them.")
 endif()
 
+string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE)
+
 include(FindPerl)
 
 set(LLVM_MAIN_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR})
@@ -22,6 +26,7 @@ set(LLVM_MAIN_INCLUDE_DIR ${LLVM_MAIN_SRC_DIR}/include)
 set(LLVM_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
 set(LLVM_TOOLS_BINARY_DIR ${LLVM_BINARY_DIR}/bin)
 set(LLVM_EXAMPLES_BINARY_DIR ${LLVM_BINARY_DIR}/examples)
+set(LLVM_LIBDIR_SUFFIX "" CACHE STRING "Define suffix of library directory name (32/64)" )
 
 set(LLVM_ALL_TARGETS
   Alpha
@@ -53,6 +58,25 @@ endif( MSVC )
 
 option(LLVM_ENABLE_THREADS "Use threads if available." ON)
 
+if( uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
+  option(LLVM_ENABLE_ASSERTIONS "Enable assertions" OFF)
+else()
+  option(LLVM_ENABLE_ASSERTIONS "Enable assertions" ON)
+endif()
+
+if( LLVM_ENABLE_ASSERTIONS )
+  add_definitions( -D_DEBUG )
+  # On Release builds cmake automatically defines NDEBUG, so we
+  # explicitly undefine it:
+  if( uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
+    add_definitions( -UNDEBUG )
+  endif()
+else()
+  if( NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
+    add_definitions( -DNDEBUG )
+  endif()
+endif()
+
 if( LLVM_TARGETS_TO_BUILD STREQUAL "all" )
   set( LLVM_TARGETS_TO_BUILD ${LLVM_ALL_TARGETS} )
 endif()
@@ -67,6 +91,24 @@ endforeach(c)
 
 set(llvm_builded_incs_dir ${LLVM_BINARY_DIR}/include/llvm)
 
+# The USE_EXPLICIT_DEPENDENCIES variable will be TRUE to indicate that
+# we should use the library dependencies explicitly specified in the
+# CMakeLists.txt files rather than those determined by
+# llvm-config. This value must be true for non-make and IDE
+# generators.
+if (MSVC_IDE)
+  set(DEFAULT_USE_EXPLICIT_DEPENDENCIES ON)
+elseif (XCODE)
+  set(DEFAULT_USE_EXPLICIT_DEPENDENCIES ON)
+else ()
+ set(DEFAULT_USE_EXPLICIT_DEPENDENCIES OFF)
+endif ()
+
+option(USE_EXPLICIT_DEPENDENCIES 
+  "Use explicit dependencies instead of llvm-config" 
+  ${DEFAULT_USE_EXPLICIT_DEPENDENCIES})
+mark_as_advanced(USE_EXPLICIT_DEPENDENCIES)
+
 # Add path for custom modules
 set(CMAKE_MODULE_PATH
   ${CMAKE_MODULE_PATH}
@@ -109,11 +151,13 @@ include(config-ix)
 
 option(LLVM_ENABLE_PIC "Build Position-Independent Code" OFF)
 
+set(ENABLE_PIC 0)
 if( LLVM_ENABLE_PIC )
   if( SUPPORTS_FPIC_FLAG )
     message(STATUS "Building with -fPIC")
     add_llvm_definitions(-fPIC)
-  else( SUPPORTS_FPIC_FLAG )
+    set(ENABLE_PIC 1)
+ else( SUPPORTS_FPIC_FLAG )
     message(STATUS "Warning: -fPIC not supported.")
   endif()
 endif()
@@ -143,11 +187,26 @@ if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
 endif( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
 
 if( MSVC )
+  # List of valid CRTs for MSVC
+  set(MSVC_CRT
+    MD
+    MDd)
+
+  set(LLVM_USE_CRT "" CACHE STRING "Specify VC++ CRT to use for debug/release configurations.")
   add_llvm_definitions( -D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS )
   add_llvm_definitions( -D_SCL_SECURE_NO_WARNINGS -DCRT_NONSTDC_NO_WARNINGS )
   add_llvm_definitions( -D_SCL_SECURE_NO_DEPRECATE )
   add_llvm_definitions( -wd4146 -wd4503 -wd4996 -wd4800 -wd4244 -wd4624 )
   add_llvm_definitions( -wd4355 -wd4715 -wd4180 -wd4345 -wd4224 )
+
+  if (NOT ${LLVM_USE_CRT} STREQUAL "")
+    list(FIND MSVC_CRT ${LLVM_USE_CRT} idx)
+    if (idx LESS 0)
+      message(FATAL_ERROR "Invalid value for LLVM_USE_CRT: ${LLVM_USE_CRT}. Valid options are one of: ${MSVC_CRT}")
+    endif (idx LESS 0)
+    add_llvm_definitions("/${LLVM_USE_CRT}")
+    message(STATUS "Using VC++ CRT: ${LLVM_USE_CRT}")
+  endif (NOT ${LLVM_USE_CRT} STREQUAL "")
 endif( MSVC )
 
 include_directories( ${LLVM_BINARY_DIR}/include ${LLVM_MAIN_INCLUDE_DIR})
@@ -164,6 +223,8 @@ set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} ${LLVM_LIBS} )
 
 set(LLVM_TABLEGEN "tblgen" CACHE
   STRING "Native TableGen executable. Saves building one when cross-compiling.")
+# Effective tblgen executable to be used:
+set(LLVM_TABLEGEN_EXE ${LLVM_TABLEGEN})
 
 add_subdirectory(utils/TableGen)