kc3-lang/SDL/cmake/CheckCPUArchitecture.cmake

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• Hash : dcd12523
  Author :
  Date : 2022-11-25T02:18:16
  

  cmake: test for lsx and lasx intrinsics for loongarch

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• cmake/CheckCPUArchitecture.cmake

• include(CheckCSourceCompiles)
  include(CMakePushCheckState)
  
  function(_internal_check_cpu_architecture macro_check NAME VARIABLE)
    cmake_push_check_state(RESET)
    string(TOUPPER "${NAME}" UPPER_NAME)
    set(CACHE_VARIABLE "CHECK_CPU_ARCHITECTURE_${UPPER_NAME}")
    set(test_src "
  int main(int argc, char *argv[]) {
  #if ${macro_check}
    return 0;
  #else
    choke
  #endif
  }
  ")
    check_c_source_compiles("${test_src}" "${CACHE_VARIABLE}")
    cmake_pop_check_state()
    if(${CACHE_VARIABLE})
      set(${VARIABLE} "TRUE" PARENT_SCOPE)
    else()
      set(${VARIABLE} "FALSE" PARENT_SCOPE)
    endif()
  endfunction()
  
  function(check_cpu_architecture ARCH VARIABLE)
    if(ARCH STREQUAL "x86")
      _internal_check_cpu_architecture("defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) ||defined( __i386) || defined(_M_IX86)" x86 ${VARIABLE})
    elseif(ARCH STREQUAL "x64")
      _internal_check_cpu_architecture("defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)" x64 ${VARIABLE})
    elseif(ARCH STREQUAL "arm32")
      _internal_check_cpu_architecture("defined(__arm__) || defined(_M_ARM)" arm32 ${VARIABLE})
    elseif(ARCH STREQUAL "arm64")
      _internal_check_cpu_architecture("defined(__aarch64__) || defined(_M_ARM64)" arm64 ${VARIABLE})
    elseif(ARCH STREQUAL "loongarch64")
      _internal_check_cpu_architecture("defined(__loongarch64)" loongarch64 ${VARIABLE})
    else()
      message(WARNING "Unknown CPU architectures (${ARCH}).")
      set(${VARIABLE} FALSE)
    endif()
    set("${VARIABLE}" "${${VARIABLE}}" PARENT_SCOPE)
  endfunction()
  

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