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6623167: C2 crashed in StoreCMNode::Value

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C2 crashed in StoreCMNode::Value because n->in(MemNode::OopStore) is 0.

Reviewed-by: rasbold, never
This commit is contained in:
Vladimir Kozlov 2008-03-11 11:04:40 -07:00
parent a39a588efa
commit 50708126d4
1 changed files with 9 additions and 2 deletions
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11
hotspot/src/share/vm/opto/memnode.cpp
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@ -1771,9 +1771,16 @@ Node *StoreCMNode::Identity( PhaseTransform *phase ) {
//------------------------------Value-----------------------------------------
const Type *StoreCMNode::Value( PhaseTransform *phase ) const {
// Either input is TOP ==> the result is TOP
const Type *t = phase->type( in(MemNode::Memory) );
if( t == Type::TOP ) return Type::TOP;
t = phase->type( in(MemNode::Address) );
if( t == Type::TOP ) return Type::TOP;
t = phase->type( in(MemNode::ValueIn) );
if( t == Type::TOP ) return Type::TOP;
// If extra input is TOP ==> the result is TOP
const Type *t1 = phase->type( in(MemNode::OopStore) );
if( t1 == Type::TOP ) return Type::TOP;
t = phase->type( in(MemNode::OopStore) );
if( t == Type::TOP ) return Type::TOP;
return StoreNode::Value( phase );
}