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6969586: OptimizeStringConcat: SIGSEGV in LoadNode::Value()

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Reviewed-by: kvn
This commit is contained in:
Tom Rodriguez 2010-08-30 17:27:35 -07:00
parent 3f7bac73fe
commit 84aedee955
1 changed files with 2 additions and 2 deletions
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4
hotspot/src/share/vm/opto/memnode.cpp
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@ -1547,8 +1547,8 @@ const Type *LoadNode::Value( PhaseTransform *phase ) const {
adr->is_AddP() && off != Type::OffsetBot) {
// For constant Strings treat the fields as compile time constants.
Node* base = adr->in(AddPNode::Base);
if (base->Opcode() == Op_ConP) {
const TypeOopPtr* t = phase->type(base)->isa_oopptr();
const TypeOopPtr* t = phase->type(base)->isa_oopptr();
if (t != NULL && t->singleton()) {
ciObject* string = t->const_oop();
ciConstant constant = string->as_instance()->field_value_by_offset(off);
if (constant.basic_type() == T_INT) {