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7173340: C2: code cleanup: use PhaseIterGVN::replace_edge(Node*, int, Node*) where applicable

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Replace frequent C2 optimizer code patterns with new methods calls

Reviewed-by: kvn, twisti
This commit is contained in:
Vlaidmir Ivanov 2012-06-12 16:23:31 -07:00 • committed by Vladimir Kozlov
parent 529b370174
commit dd85e2f356
11 changed files with 92 additions and 180 deletions
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8
hotspot/src/share/vm/opto/domgraph.cpp
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@ -465,15 +465,11 @@ void PhaseIdealLoop::Dominators() {
// Kill dead input path
assert( !visited.test(whead->in(i)->_idx),
"input with no loop must be dead" );
_igvn.hash_delete(whead);
whead->del_req(i);
_igvn._worklist.push(whead);
_igvn.delete_input_of(whead, i);
for (DUIterator_Fast jmax, j = whead->fast_outs(jmax); j < jmax; j++) {
Node* p = whead->fast_out(j);
if( p->is_Phi() ) {
_igvn.hash_delete(p);
p->del_req(i);
_igvn._worklist.push(p);
_igvn.delete_input_of(p, i);
}
}
i--; // Rerun same iteration