* tree-ssa-dce.c (mark_stmt_if_obviously_necessary)
<COND_EXPR>: Use EDGE_COUNT instead of GOTO_DESTINATION.
From-SVN: r89729
+2004-10-28 Kazu Hirata <kazu@cs.umass.edu>
+
+ * tree-ssa-dce.c (mark_stmt_if_obviously_necessary)
+ <COND_EXPR>: Use EDGE_COUNT instead of GOTO_DESTINATION.
+
2004-10-28 Joseph S. Myers <jsm@polyomino.org.uk>
* doc/contrib.texi, doc/cpp.texi, doc/cppopts.texi,
return;
case COND_EXPR:
- if (GOTO_DESTINATION (COND_EXPR_THEN (stmt))
- == GOTO_DESTINATION (COND_EXPR_ELSE (stmt)))
- {
- /* A COND_EXPR is obviously dead if the target labels are the same.
- We cannot kill the statement at this point, so to prevent the
- statement from being marked necessary, we replace the condition
- with a constant. The stmt is killed later on in cfg_cleanup. */
- COND_EXPR_COND (stmt) = integer_zero_node;
- modify_stmt (stmt);
- return;
- }
+ gcc_assert (EDGE_COUNT (bb_for_stmt (stmt)->succs) == 2);
/* Fall through. */
case SWITCH_EXPR: