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8040213: C2 does not put all modified nodes on IGVN worklist

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Verification code is added that checks if modified nodes are put on the IGVN worklist and modified nodes are processed by 'PhaseIterGVN::transform_old()'

Reviewed-by: kvn, jrose
This commit is contained in:
Tobias Hartmann 2014-07-25 10:06:17 +02:00
parent cabec1ca5e
commit 11eb4553c9
15 changed files with 131 additions and 50 deletions
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9
hotspot/src/share/vm/opto/loopPredicate.cpp
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@ -107,8 +107,7 @@ ProjNode* PhaseIdealLoop::create_new_if_for_predicate(ProjNode* cont_proj, Node*
rgn = new RegionNode(1);
rgn->add_req(uncommon_proj);
register_control(rgn, loop, uncommon_proj);
_igvn.hash_delete(call);
call->set_req(0, rgn);
_igvn.replace_input_of(call, 0, rgn);
// When called from beautify_loops() idom is not constructed yet.
if (_idom != NULL) {
set_idom(call, rgn, dom_depth(rgn));
@ -166,8 +165,7 @@ ProjNode* PhaseIdealLoop::create_new_if_for_predicate(ProjNode* cont_proj, Node*
if (new_entry == NULL) {
// Attach if_cont to iff
_igvn.hash_delete(iff);
iff->set_req(0, if_cont);
_igvn.replace_input_of(iff, 0, if_cont);
if (_idom != NULL) {
set_idom(iff, if_cont, dom_depth(iff));
}
@ -194,8 +192,7 @@ ProjNode* PhaseIterGVN::create_new_if_for_predicate(ProjNode* cont_proj, Node* n
rgn = new RegionNode(1);
register_new_node_with_optimizer(rgn);
rgn->add_req(uncommon_proj);
hash_delete(call);
call->set_req(0, rgn);
replace_input_of(call, 0, rgn);
} else {
// Find region's edge corresponding to uncommon_proj
for (; proj_index < rgn->req(); proj_index++)