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cfgloop.c (flow_loops_find): Call bb_has_abnormal_pred.

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* cfgloop.c (flow_loops_find): Call bb_has_abnormal_pred.
	* reload1.c (has_nonexceptional_receiver): Likewise.
	* tree-into-ssa.c (rewrite_update_enter_block): Likewise.
	(create_new_def_for): Likewise.
	* tree-cfgcleanup.c (remove_forwarder_block): Likewise.
	(merge_phi_nodes): Likewise.
	(has_abnormal_incoming_edge_p): Delete.

From-SVN: r165772
This commit is contained in:
Nathan Froyd 2010-10-21 13:01:35 +00:00 committed by Nathan Froyd
parent 2f7ba24e1f
commit 31ff2426f6
5 changed files with 18 additions and 39 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2010-10-21 Nathan Froyd <froydnj@codesourcery.com>
* cfgloop.c (flow_loops_find): Call bb_has_abnormal_pred.
* reload1.c (has_nonexceptional_receiver): Likewise.
* tree-into-ssa.c (rewrite_update_enter_block): Likewise.
(create_new_def_for): Likewise.
* tree-cfgcleanup.c (remove_forwarder_block): Likewise.
(merge_phi_nodes): Likewise.
(has_abnormal_incoming_edge_p): Delete.
2010-10-21 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/sse.md (ssescalarmodesuffix): Add V8SI and V4DI.

5
gcc/cfgloop.c
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@ -410,10 +410,7 @@ flow_loops_find (struct loops *loops)
/* If we have an abnormal predecessor, do not consider the
loop (not worth the problems). */
FOR_EACH_EDGE (e, ei, header->preds)
if (e->flags & EDGE_ABNORMAL)
break;
if (e)
if (bb_has_abnormal_pred (header))
continue;
FOR_EACH_EDGE (e, ei, header->preds)

6
gcc/reload1.c
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@ -675,10 +675,8 @@ has_nonexceptional_receiver (void)
/* Now see if there's a reachable block with an exceptional incoming
edge. */
FOR_EACH_BB (bb)
if (bb->flags & BB_REACHABLE)
FOR_EACH_EDGE (e, ei, bb->preds)
if (e->flags & EDGE_ABNORMAL)
return true;
if (bb->flags & BB_REACHABLE && bb_has_abnormal_pred (bb))
return true;
/* No exceptional block reached exit unexceptionally. */
return false;

21
gcc/tree-cfgcleanup.c
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@ -338,21 +338,6 @@ tree_forwarder_block_p (basic_block bb, bool phi_wanted)
return true;
}
/* Return true if BB has at least one abnormal incoming edge. */
static inline bool
has_abnormal_incoming_edge_p (basic_block bb)
{
edge e;
edge_iterator ei;
FOR_EACH_EDGE (e, ei, bb->preds)
if (e->flags & EDGE_ABNORMAL)
return true;
return false;
}
/* If all the PHI nodes in DEST have alternatives for E1 and E2 and
those alternatives are equal in each of the PHI nodes, then return
true, else return false. */
@ -418,8 +403,8 @@ remove_forwarder_block (basic_block bb)
So if there is an abnormal edge to BB, proceed only if there is
no abnormal edge to DEST and there are no phi nodes in DEST. */
if (has_abnormal_incoming_edge_p (bb)
&& (has_abnormal_incoming_edge_p (dest)
if (bb_has_abnormal_pred (bb)
&& (bb_has_abnormal_pred (dest)
|| !gimple_seq_empty_p (phi_nodes (dest))))
return false;
@ -990,7 +975,7 @@ merge_phi_nodes (void)
if (gimple_seq_empty_p (phi_nodes (dest))
/* We don't want to deal with a basic block with
abnormal edges. */
|| has_abnormal_incoming_edge_p (bb))
|| bb_has_abnormal_pred (bb))
continue;
if (!dominated_by_p (CDI_DOMINATORS, dest, bb))

15
gcc/tree-into-ssa.c
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@ -2080,13 +2080,7 @@ rewrite_update_enter_block (struct dom_walk_data *walk_data ATTRIBUTE_UNUSED,
/* Mark the LHS if any of the arguments flows through an abnormal
edge. */
is_abnormal_phi = false;
FOR_EACH_EDGE (e, ei, bb->preds)
if (e->flags & EDGE_ABNORMAL)
{
is_abnormal_phi = true;
break;
}
is_abnormal_phi = bb_has_abnormal_pred (bb);
/* If any of the PHI nodes is a replacement for a name in
OLD_SSA_NAMES or it's one of the names in NEW_SSA_NAMES, then
@ -2843,12 +2837,7 @@ create_new_def_for (tree old_name, gimple stmt, def_operand_p def)
basic_block bb = gimple_bb (stmt);
/* If needed, mark NEW_NAME as occurring in an abnormal PHI node. */
FOR_EACH_EDGE (e, ei, bb->preds)
if (e->flags & EDGE_ABNORMAL)
{
SSA_NAME_OCCURS_IN_ABNORMAL_PHI (new_name) = 1;
break;
}
SSA_NAME_OCCURS_IN_ABNORMAL_PHI (new_name) = bb_has_abnormal_pred (bb);
}
register_new_name_mapping (new_name, old_name);