diff -r 4248c8e21063 -r e9a0a9dcd4f6 hotspot/src/share/vm/opto/loopnode.cpp --- a/hotspot/src/share/vm/opto/loopnode.cpp Wed Dec 05 09:00:00 2007 -0800 +++ b/hotspot/src/share/vm/opto/loopnode.cpp Wed Dec 05 09:01:00 2007 -0800 @@ -651,7 +651,7 @@ while (if_cnt < if_limit) { if ((pred->Opcode() == Op_IfTrue || pred->Opcode() == Op_IfFalse)) { if_cnt++; - const TypeInt* if_t = filtered_type_at_if(val, pred); + const TypeInt* if_t = IfNode::filtered_int_type(&_igvn, val, pred); if (if_t != NULL) { if (rtn_t == NULL) { rtn_t = if_t; @@ -674,59 +674,6 @@ } -//------------------------------filtered_type_at_if-------------------------------- -// Return a possibly more restrictive type for val based on condition control flow for an if -const TypeInt* PhaseIdealLoop::filtered_type_at_if( Node* val, Node *if_proj) { - assert(if_proj && - (if_proj->Opcode() == Op_IfTrue || if_proj->Opcode() == Op_IfFalse), "expecting an if projection"); - if (if_proj->in(0) && if_proj->in(0)->is_If()) { - IfNode* iff = if_proj->in(0)->as_If(); - if (iff->in(1) && iff->in(1)->is_Bool()) { - BoolNode* bol = iff->in(1)->as_Bool(); - if (bol->in(1) && bol->in(1)->is_Cmp()) { - const CmpNode* cmp = bol->in(1)->as_Cmp(); - if (cmp->in(1) == val) { - const TypeInt* cmp2_t = _igvn.type(cmp->in(2))->isa_int(); - if (cmp2_t != NULL) { - jint lo = cmp2_t->_lo; - jint hi = cmp2_t->_hi; - BoolTest::mask msk = if_proj->Opcode() == Op_IfTrue ? bol->_test._test : bol->_test.negate(); - switch (msk) { - case BoolTest::ne: - // Can't refine type - return NULL; - case BoolTest::eq: - return cmp2_t; - case BoolTest::lt: - lo = TypeInt::INT->_lo; - if (hi - 1 < hi) { - hi = hi - 1; - } - break; - case BoolTest::le: - lo = TypeInt::INT->_lo; - break; - case BoolTest::gt: - if (lo + 1 > lo) { - lo = lo + 1; - } - hi = TypeInt::INT->_hi; - break; - case BoolTest::ge: - // lo unchanged - hi = TypeInt::INT->_hi; - break; - } - const TypeInt* rtn_t = TypeInt::make(lo, hi, cmp2_t->_widen); - return rtn_t; - } - } - } - } - } - return NULL; -} - //------------------------------dump_spec-------------------------------------- // Dump special per-node info #ifndef PRODUCT