* tree-ssa-dom.c (record_equivalences_from_phis): Add a
comment.
From-SVN: r92091
* tree-ssa-dom.c (record_equivalences_from_phis): Speed up by
doing a pointer comparison.
+ * tree-ssa-dom.c (record_equivalences_from_phis): Add a
+ comment.
+
2004-12-13 Kazuhiro Inaoka <inaoka.kazuhiro@renesas.com>
* config/m32r/t-linux (SHLIB_MAPFILES): Add libgcc-glibc.ver to
{
tree t = PHI_ARG_DEF (phi, i);
- /* Ignore alternatives which are the same as our LHS. */
+ /* Ignore alternatives which are the same as our LHS. Since
+ LHS is a PHI_RESULT, it is known to be a SSA_NAME, so we
+ can simply compare pointers. */
if (lhs == t)
continue;