Tiny performance gains

1 files changed, 6 insertions, 21 deletions

diff --git a/src/solve_h48.h b/src/solve_h48.h
index ad865a7..1701268 100644
--- a/src/solve_h48.h
+++ b/src/solve_h48.h
@@ -35,13 +35,14 @@ _t by _ttrep).
 #define _foreach_h48sim(_cube, _cocsepdata, _selfsim, _h, _action) \
         int64_t _cocsep = coord_cocsep(_cube); \
         uint8_t _ttrep = TTREP(_cocsepdata[_cocsep]); \
+        uint8_t _inverse_ttrep = inverse_trans(_ttrep); \
         int64_t _coclass = COCLASS(_cocsepdata[_cocsep]); \
         cube_t _rep = transform(_cube, _ttrep); \
         uint64_t _sim = _selfsim[_coclass]; \
         for (uint8_t _t = 0; _t < 48 && _sim; _t++, _sim >>= 1) { \
                 if (!(_sim & 1)) continue; \
                 _cube = transform(_rep, _t); \
-                _cube = transform(_cube, inverse_trans(_ttrep)); \
+                _cube = transform(_cube, _inverse_ttrep); \
                 _action \
         }
 
@@ -512,7 +513,9 @@ gendata_h48h0k4_return_size:
 _static int64_t
 gendata_h48h0k4_bfs(bfsarg_esep_t *arg)
 {
-        if (2 * arg->done < (int64_t)ESEP_MAX(0))
+        const uint8_t breakpoint = 10; /* Hand-picked optimal */
+
+        if (arg->depth < breakpoint)
                 return gendata_h48h0k4_bfs_fromdone(arg);
         else
                 return gendata_h48h0k4_bfs_fromnew(arg);
@@ -567,31 +570,13 @@ gendata_h48h0k4_bfs_fromnew(bfsarg_esep_t *arg)
                         x = get_esep_pval(arg->buf32, j);
                         if (x >= arg->depth)
                                 continue;
-#if 0
-                        cube_t transd;
-                        int64_t t, cocsep_coord, sim;
-
-                        set_esep_pval(arg->buf32, i, arg->depth);
-                        cc++;
-                        cocsep_coord = i / H48_ESIZE(0);
-                        sim = arg->selfsim[cocsep_coord] >> 1;
-                        for (t = 1; t < 48 && sim; t++) {
-                                transd = transform(cube, t);
-                                j = coord_h48(transd, arg->cocsepdata, 0);
-                                x = get_esep_pval(arg->buf32, j);
-                                set_esep_pval(arg->buf32, j, arg->depth);
-                                cc += x == 0xF;
-                        }
-#else
                         _foreach_h48sim(cube, arg->cocsepdata, arg->selfsim, 0,
                                 j = coord_h48(cube, arg->cocsepdata, 0);
                                 x = get_esep_pval(arg->buf32, j);
                                 set_esep_pval(arg->buf32, j, arg->depth);
                                 cc += x == 0xF;
                         )
-#endif
-
-                        break;
+                        break; /* Enough to find one, skip the rest */
                 }
         }