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7042153: guarantee(x_compare_res != Constant::not_comparable) failed: incomparable constants in IfOp

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Handle IfOps folding properly in case of unloaded constant oop arguments

Reviewed-by: kvn, never
This commit is contained in:
Igor Veresov 2011-05-06 12:12:29 -07:00
parent 8698030a91
commit bb2c21a025
3 changed files with 69 additions and 17 deletions
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13
hotspot/src/share/vm/c1/c1_InstructionPrinter.cpp
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@ -132,17 +132,22 @@ void InstructionPrinter::print_object(Value obj) {
if (value->is_null_object()) {
output()->print("null");
} else if (!value->is_loaded()) {
output()->print("<unloaded object 0x%x>", value);
output()->print("<unloaded object " PTR_FORMAT ">", value);
} else if (value->is_method()) {
ciMethod* m = (ciMethod*)value;
output()->print("<method %s.%s>", m->holder()->name()->as_utf8(), m->name()->as_utf8());
} else {
output()->print("<object 0x%x>", value->constant_encoding());
output()->print("<object " PTR_FORMAT ">", value->constant_encoding());
}
} else if (type->as_InstanceConstant() != NULL) {
output()->print("<instance 0x%x>", type->as_InstanceConstant()->value()->constant_encoding());
ciInstance* value = type->as_InstanceConstant()->value();
if (value->is_loaded()) {
output()->print("<instance " PTR_FORMAT ">", value->constant_encoding());
} else {
output()->print("<unloaded instance " PTR_FORMAT ">", value);
}
} else if (type->as_ArrayConstant() != NULL) {
output()->print("<array 0x%x>", type->as_ArrayConstant()->value()->constant_encoding());
output()->print("<array " PTR_FORMAT ">", type->as_ArrayConstant()->value()->constant_encoding());
} else if (type->as_ClassConstant() != NULL) {
ciInstanceKlass* klass = type->as_ClassConstant()->value();
if (!klass->is_loaded()) {