ldc2 -Os -mattr=ssse3 -singleobj -release main.d bc.d bc_common.d bc_test.d rmem.d
Sizeof BCValue: 24LU
cast(LongInst)cast(ushort)55u

D:\sources\my sources\ctfe
λ main
    1   0.004,100 ms
    2   0.001,500 ms
    3   0.000,500 ms
    4   0.001,000 ms
    5   0.001,500 ms
    6   0.000,500 ms
    7   0.001,000 ms
    8   0.000,500 ms
    9   0.000,500 ms
   10   0.001,000 ms
   11   0.001,000 ms
   12   0.001,000 ms
   13   0.001,000 ms
   14   0.000,500 ms
   15   0.001,000 ms
   16   0.001,000 ms
   17   0.001,000 ms
   18   0.001,000 ms
   19   0.000,500 ms
   20   0.001,000 ms
   21   0.000,500 ms
   22   0.001,000 ms
   23   0.000,500 ms
   24   0.001,000 ms
   25   0.000,500 ms
   26   0.001,000 ms
   27   0.001,000 ms
   28   0.001,000 ms
   29   0.001,000 ms
   30   0.001,000 ms
       avg 0.000,900 ms