+2008-01-10 Steven Bosscher <stevenb.gcc@gmail.com>
+
+ * tree-ssa-sccvn.h (struct vn_ssa_aux): Make the most accessed
+ field (valnum) the first in the struct. Replace bools with
+ unit bit fields.
+
2008-01-10 Richard Guenther <rguenther@suse.de>
PR tree-optimization/34651
typedef struct vn_ssa_aux
{
- /* SCC information. */
- unsigned int dfsnum;
- bool visited;
- unsigned int low;
- bool on_sccstack;
-
/* Value number. This may be an SSA name or a constant. */
tree valnum;
/* Representative expression, if not a direct constant. */
tree expr;
+
+ /* SCC information. */
+ unsigned int dfsnum;
+ unsigned int low;
+ unsigned visited : 1;
+ unsigned on_sccstack : 1;
+
/* Whether the representative expression contains constants. */
- bool has_constants;
+ unsigned has_constants : 1;
/* Whether the SSA_NAME has been value numbered already. This is
only saying whether visit_use has been called on it at least
once. It cannot be used to avoid visitation for SSA_NAME's
involved in non-singleton SCC's. */
- bool use_processed;
+ unsigned use_processed : 1;
} *vn_ssa_aux_t;
/* Return the value numbering info for an SSA_NAME. */