EC600G/prebuilts/win32/cmake/share/cmake-3.16/Modules/Compiler/ARMCC-DetermineCompiler.cmake

# ARMCC Toolchain
set(_compiler_id_pp_test "defined(__ARMCC_VERSION) && !defined(__clang__)")

set(_compiler_id_version_compute "
#if __ARMCC_VERSION >= 1000000
  /* __ARMCC_VERSION = VRRPPPP */
  # define @PREFIX@COMPILER_VERSION_MAJOR @MACRO_DEC@(__ARMCC_VERSION/1000000)
  # define @PREFIX@COMPILER_VERSION_MINOR @MACRO_DEC@(__ARMCC_VERSION/10000 % 100)
  # define @PREFIX@COMPILER_VERSION_PATCH @MACRO_DEC@(__ARMCC_VERSION     % 10000)
#else
  /* __ARMCC_VERSION = VRPPPP */
  # define @PREFIX@COMPILER_VERSION_MAJOR @MACRO_DEC@(__ARMCC_VERSION/100000)
  # define @PREFIX@COMPILER_VERSION_MINOR @MACRO_DEC@(__ARMCC_VERSION/10000 % 10)
  # define @PREFIX@COMPILER_VERSION_PATCH @MACRO_DEC@(__ARMCC_VERSION    % 10000)
#endif
")