< prev index next >

src/share/vm/opto/ifnode.cpp

Print this page

        

*** 43,53 **** extern int explicit_null_checks_elided; //============================================================================= //------------------------------Value------------------------------------------ // Return a tuple for whichever arm of the IF is reachable ! const Type *IfNode::Value( PhaseTransform *phase ) const { if( !in(0) ) return Type::TOP; if( phase->type(in(0)) == Type::TOP ) return Type::TOP; const Type *t = phase->type(in(1)); if( t == Type::TOP ) // data is undefined --- 43,53 ---- extern int explicit_null_checks_elided; //============================================================================= //------------------------------Value------------------------------------------ // Return a tuple for whichever arm of the IF is reachable ! const Type* IfNode::Value(PhaseGVN* phase) const { if( !in(0) ) return Type::TOP; if( phase->type(in(0)) == Type::TOP ) return Type::TOP; const Type *t = phase->type(in(1)); if( t == Type::TOP ) // data is undefined
*** 1525,1535 **** return prev_dom; } //------------------------------Identity--------------------------------------- // If the test is constant & we match, then we are the input Control ! Node *IfProjNode::Identity(PhaseTransform *phase) { // Can only optimize if cannot go the other way const TypeTuple *t = phase->type(in(0))->is_tuple(); if (t == TypeTuple::IFNEITHER || // kill dead branch first otherwise the IfNode's control will // have 2 control uses (the IfNode that doesn't go away because --- 1525,1535 ---- return prev_dom; } //------------------------------Identity--------------------------------------- // If the test is constant & we match, then we are the input Control ! Node* IfProjNode::Identity(PhaseGVN* phase) { // Can only optimize if cannot go the other way const TypeTuple *t = phase->type(in(0))->is_tuple(); if (t == TypeTuple::IFNEITHER || // kill dead branch first otherwise the IfNode's control will // have 2 control uses (the IfNode that doesn't go away because
< prev index next >