--- a/hotspot/src/share/vm/opto/cfgnode.cpp Thu Jul 16 14:10:42 2009 -0700
+++ b/hotspot/src/share/vm/opto/cfgnode.cpp Thu Jul 16 16:29:55 2009 -0700
@@ -1796,8 +1796,12 @@
for (uint i=1; i<req(); ++i) {// For all paths in
Node *ii = in(i);
if (ii->is_DecodeN() && ii->bottom_type() == bottom_type()) {
- has_decodeN = true;
- in_decodeN = ii->in(1);
+ // Note: in_decodeN is used only to define the type of new phi.
+ // Find a non dead path otherwise phi type will be wrong.
+ if (ii->in(1)->bottom_type() != Type::TOP) {
+ has_decodeN = true;
+ in_decodeN = ii->in(1);
+ }
} else if (!ii->is_Phi()) {
may_push = false;
}
@@ -1805,7 +1809,6 @@
if (has_decodeN && may_push) {
PhaseIterGVN *igvn = phase->is_IterGVN();
- // Note: in_decodeN is used only to define the type of new phi here.
PhiNode *new_phi = PhiNode::make_blank(in(0), in_decodeN);
uint orig_cnt = req();
for (uint i=1; i<req(); ++i) {// For all paths in