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6674588: (Escape Analysis) Improve Escape Analysis code

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Current EA code has several problems which have to be fixed.

Reviewed-by: jrose, sgoldman
This commit is contained in:
Vladimir Kozlov 2008-03-14 15:26:33 -07:00
parent 30dc0edfc8
commit fc0117cb9a
12 changed files with 1352 additions and 523 deletions
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5
hotspot/src/share/vm/opto/node.cpp
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@ -812,8 +812,7 @@ int Node::disconnect_inputs(Node *n) {
Node* Node::uncast() const {
// Should be inline:
//return is_ConstraintCast() ? uncast_helper(this) : (Node*) this;
if (is_ConstraintCast() ||
(is_Type() && req() == 2 && Opcode() == Op_CheckCastPP))
if (is_ConstraintCast() || is_CheckCastPP())
return uncast_helper(this);
else
return (Node*) this;
@ -827,7 +826,7 @@ Node* Node::uncast_helper(const Node* p) {
break;
} else if (p->is_ConstraintCast()) {
p = p->in(1);
} else if (p->is_Type() && p->Opcode() == Op_CheckCastPP) {
} else if (p->is_CheckCastPP()) {
p = p->in(1);
} else {
break;