CMakeLists.txt

cmake_minimum_required(VERSION 3.13.4)

# CMP0116: Ninja generators transform `DEPFILE`s from `add_custom_command()`
# New in CMake 3.20. https://cmake.org/cmake/help/latest/policy/CMP0116.html
if(POLICY CMP0116)
  cmake_policy(SET CMP0116 OLD)
endif()

# If we are not building as a part of LLVM, build Sclang as an
# standalone project, using LLVM as an external library:
if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )

#-------------------------------------------------------------------------------
# Project setup and globals
#-------------------------------------------------------------------------------
  project(sclang LANGUAGES CXX C)

  set(CMAKE_CXX_STANDARD 14)
  set(CMAKE_CXX_STANDARD_REQUIRED YES)

#-------------------------------------------------------------------------------
# Options and settings
#-------------------------------------------------------------------------------

  option(LLVM_INCLUDE_TOOLS "Generate build targets for the LLVM tools." ON)
  option(LLVM_BUILD_TOOLS "Build the LLVM tools. If OFF, just generate build targets." ON)

if (MSVC)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHs-c- /GR-")
else ()
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions -fno-rtti")
endif ()

#-------------------------------------------------------------------------------
# MLIR/LLVM Configuration
#-------------------------------------------------------------------------------

  find_package(MLIR REQUIRED CONFIG)

  message(STATUS "Using MLIRConfig.cmake in: ${MLIR_DIR}")
  message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")

  set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/bin)
  set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/lib)

  list(APPEND CMAKE_MODULE_PATH "${MLIR_CMAKE_DIR}")
  list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_DIR}")

  include(TableGen)
  include(AddLLVM)
  include(AddMLIR)
  include(HandleLLVMOptions)

  set(CIRCT_BUILT_STANDALONE 1)
  set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")
else()
  set(MLIR_MAIN_SRC_DIR ${LLVM_MAIN_SRC_DIR}/../mlir ) # --src-root
  set(MLIR_INCLUDE_DIR ${MLIR_MAIN_SRC_DIR}/include ) # --includedir
  set(MLIR_TABLEGEN_OUTPUT_DIR ${CMAKE_BINARY_DIR}/tools/mlir/include)
  set(MLIR_TABLEGEN_EXE $<TARGET_FILE:mlir-tblgen>)
  include_directories(SYSTEM ${MLIR_INCLUDE_DIR})
  include_directories(SYSTEM ${MLIR_TABLEGEN_OUTPUT_DIR})

  set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")
endif()

# Define the default arguments to use with 'lit', and an option for the user to
# override.
set(LIT_ARGS_DEFAULT "-sv")
if (MSVC_IDE OR XCODE)
  set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
endif()
set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")

# Add MLIR and LLVM headers to the include path
include_directories(${LLVM_INCLUDE_DIRS})
include_directories(${MLIR_INCLUDE_DIRS})


#-------------------------------------------------------------------------------
# Sclang Configuration
#-------------------------------------------------------------------------------

set(SCLANG_MAIN_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(SCLANG_MAIN_INCLUDE_DIR ${SCLANG_MAIN_SRC_DIR}/include)
set(SCLANG_INCLUDE_DIR ${CMAKE_CURRENT_BINARY_DIR}/include)
set(SCLANG_TOOLS_DIR ${CMAKE_CURRENT_BINARY_DIR}/bin)

include_directories(${SCLANG_INCLUDE_DIR})
include_directories(${SCLANG_MAIN_INCLUDE_DIR})

add_subdirectory(include)
add_subdirectory(lib)
add_subdirectory(sclang)
add_subdirectory(sclang-gen)
add_subdirectory(test)