-#else
-always_inline uword
-min_log2 (uword x)
-{
- uword a = x, b = BITS (uword) / 2, c = 0, r = 0;
-
- /* Reduce x to 4 bit result. */
-#define _ \
-{ \
- c = a >> b; \
- if (c) a = c; \
- if (c) r += b; \
- b /= 2; \
-}
-
- if (BITS (uword) > 32)
- _;
- _;
- _;
- _;
-#undef _
-
- /* Do table lookup on 4 bit partial. */
- if (BITS (uword) > 32)
- {
- const u64 table = 0x3333333322221104LL;
- uword t = (table >> (4 * a)) & 0xf;
- r = t < 4 ? r + t : ~0;
- }
- else
- {
- const u32 table = 0x22221104;
- uword t = (a & 8) ? 3 : ((table >> (4 * a)) & 0xf);
- r = t < 4 ? r + t : ~0;
- }
-
- return r;
-}
-#endif