Mercurial > hg > graal-compiler
diff src/share/vm/opto/ifnode.cpp @ 1013:ce590301ae2a
6889300: assert(i != k || is_new || i->outcnt() > 0, "don't return dead nodes")
Summary: PhiNode::Ideal() should return TOP for Phi node with no users.
Reviewed-by: never, jrose
| author | kvn |
|---|---|
| date | Tue, 13 Oct 2009 22:32:31 -0700 |
| parents | fc4be448891f |
| children | e715b51789d8 |
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--- a/src/share/vm/opto/ifnode.cpp Tue Oct 13 20:54:13 2009 -0700 +++ b/src/share/vm/opto/ifnode.cpp Tue Oct 13 22:32:31 2009 -0700 @@ -240,13 +240,13 @@ // as a single huge transform. igvn->register_new_node_with_optimizer( region_c ); igvn->register_new_node_with_optimizer( region_x ); - phi_x = phase->transform( phi_x ); // Prevent the untimely death of phi_x. Currently he has no uses. He is // about to get one. If this only use goes away, then phi_x will look dead. // However, he will be picking up some more uses down below. Node *hook = new (igvn->C, 4) Node(4); hook->init_req(0, phi_x); hook->init_req(1, phi_c); + phi_x = phase->transform( phi_x ); // Make the compare Node *cmp_c = phase->makecon(t); @@ -322,6 +322,7 @@ phi_s = PhiNode::make_blank(region_s,phi); phi_s->init_req( 1, phi_c ); phi_s->init_req( 2, phi_x ); + hook->add_req(phi_s); phi_s = phase->transform(phi_s); } proj_path_data = phi_s; @@ -333,6 +334,7 @@ phi_f = PhiNode::make_blank(region_f,phi); phi_f->init_req( 1, phi_c ); phi_f->init_req( 2, phi_x ); + hook->add_req(phi_f); phi_f = phase->transform(phi_f); } proj_path_data = phi_f;