CheckX86_64Assembly.cmake raw

   1  include(CheckCSourceCompiles)
   2  
   3  function(check_x86_64_assembly)
   4    check_c_source_compiles("
   5      #include <stdint.h>
   6  
   7      int main(void)
   8      {
   9        uint64_t a = 11, tmp = 0;
  10        __asm__ __volatile__(\"movq $0x100000000,%1; mulq %%rsi\" : \"+a\"(a) : \"S\"(tmp) : \"cc\", \"%rdx\");
  11        return 0;
  12      }
  13    " HAVE_X86_64_ASM)
  14    set(HAVE_X86_64_ASM ${HAVE_X86_64_ASM} PARENT_SCOPE)
  15  endfunction()
  16