diff -r 6d13fcb3663f -r 44a553b2809d src/share/vm/opto/memnode.cpp --- a/src/share/vm/opto/memnode.cpp Fri Jun 13 14:49:07 2008 -0700 +++ b/src/share/vm/opto/memnode.cpp Fri Jun 13 15:08:56 2008 -0700 @@ -253,11 +253,17 @@ if (dom == NULL || dom->is_top() || sub == NULL || sub->is_top()) return false; // Conservative answer for dead code - // Check 'dom'. + // Check 'dom'. Skip Proj and CatchProj nodes. dom = dom->find_exact_control(dom); if (dom == NULL || dom->is_top()) return false; // Conservative answer for dead code + if (dom == sub) { + // For the case when, for example, 'sub' is Initialize and the original + // 'dom' is Proj node of the 'sub'. + return false; + } + if (dom->is_Con() || dom->is_Start() || dom->is_Root() || dom == sub) return true; @@ -271,6 +277,7 @@ sub->is_Region(), "expecting only these nodes"); // Get control edge of 'sub'. + Node* orig_sub = sub; sub = sub->find_exact_control(sub->in(0)); if (sub == NULL || sub->is_top()) return false; // Conservative answer for dead code @@ -296,14 +303,16 @@ for (uint next = 0; next < dom_list.size(); next++) { Node* n = dom_list.at(next); + if (n == orig_sub) + return false; // One of dom's inputs dominated by sub. if (!n->is_CFG() && n->pinned()) { // Check only own control edge for pinned non-control nodes. n = n->find_exact_control(n->in(0)); if (n == NULL || n->is_top()) return false; // Conservative answer for dead code assert(n->is_CFG(), "expecting control"); - } - if (n->is_Con() || n->is_Start() || n->is_Root()) { + dom_list.push(n); + } else if (n->is_Con() || n->is_Start() || n->is_Root()) { only_dominating_controls = true; } else if (n->is_CFG()) { if (n->dominates(sub, nlist))