1248   const int frame_alignment = MacroAssembler::ActivationFrameAlignment();  in EnterExitFrame()  local
1250   if (frame_alignment > 0) {  in EnterExitFrame()
1251     DCHECK(base::bits::IsPowerOfTwo(frame_alignment));  in EnterExitFrame()
1252     and_(sp, sp, Operand(-frame_alignment));  in EnterExitFrame()
2254   int frame_alignment = ActivationFrameAlignment();  in PrepareCallCFunction()  local
2257   if (frame_alignment > kPointerSize) {  in PrepareCallCFunction()
2264     DCHECK(base::bits::IsPowerOfTwo(frame_alignment));  in PrepareCallCFunction()
2265     and_(sp, sp, Operand(-frame_alignment));  in PrepareCallCFunction()
2328     int frame_alignment = base::OS::ActivationFrameAlignment();  in CallCFunctionHelper()  local
2329     int frame_alignment_mask = frame_alignment - 1;  in CallCFunctionHelper()
2330     if (frame_alignment > kPointerSize) {  in CallCFunctionHelper()
2331       DCHECK(base::bits::IsPowerOfTwo(frame_alignment));  in CallCFunctionHelper()