Cross Reference: /openjdk7/hotspot/src/share/vm/opto/split

Lines Matching defs:region
34 Node *PhaseIdealLoop::split_thru_region( Node *n, Node *region ) {
37   assert( region->is_Region(), "" );
38   Node *r = new (C) RegionNode( region->req() );
40   for( uint i = 1; i < region->req(); i++ ) {
43     if( in0->in(0) == region ) x->set_req( 0, in0->in(i) );
46       if( get_ctrl(in) == region )
55   // Record region
56   r->set_req(0,region);         // Not a TRUE RegionNode
401   Node *region = iff->in(0);
402   Node *region_dom = idom(region);
412     for (i = region->outs(); region->has_out(i); i++) {
413       Node* n = region->out(i);
414       if( n == region ) continue;
418         if (split_up(n, region, iff)) {
419           i = region->refresh_out_pos(i);
424       assert( n->in(0) == region, "" );
434         else if (m != iff && split_up(m, region, iff)) {
441         i = region->refresh_out_pos(i);
442         j = region->refresh_out_pos(j);
450   Node *new_iff = split_thru_region( iff, region );
460     Node *ifpx = split_thru_region( ifp, region );
476     new_iff->set_req(0, region);
488   // Lazy replace IDOM info with the region's dominator
493   // Preload some control flow in region-cache
497   for (DUIterator k = region->outs(); region->has_out(k); k++) {
498     Node* phi = region->out(k);
501     } else if (phi == region) { // Found the self-reference
504       assert(phi->in(0) == region, "Inconsistent graph");
521       assert(phi->in(0) == region, "Inconsistent graph");
523       handle_use(phi, region, &region_cache, region_dom, new_false, new_true, old_false, old_true);
525     // Every path above deletes a use of the region, except for the region
532   assert(region->outcnt() == 1, "Only self reference should remain"); // Just Self on the Region
533   region->set_req(0, NULL);       // Break the self-cycle
538   lazy_replace( region, region_dom );