diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-ssa-sccvn.h | 17 |
2 files changed, 15 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cc61c7050ba..6acc84421a9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +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 diff --git a/gcc/tree-ssa-sccvn.h b/gcc/tree-ssa-sccvn.h index f434e95f276..1f8f83b494c 100644 --- a/gcc/tree-ssa-sccvn.h +++ b/gcc/tree-ssa-sccvn.h @@ -26,23 +26,24 @@ extern tree VN_TOP; 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. */ |