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8255448: Fastdebug JVM crashes with Vector API when PrintAssembly is turned on

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Co-authored-by: Huang Wang <wanghuang3@huawei.com>
Reviewed-by: vlivanov
This commit is contained in:
Dongbo He 2020-11-18 01:10:11 +00:00 committed by Fei Yang
parent eb021848ba
commit ef3ddb1d03
1 changed files with 5 additions and 1 deletions

6
src/hotspot/share/opto/vector.cpp

@ -241,12 +241,16 @@ void PhaseVector::scalarize_vbox_node(VectorBoxNode* vec_box) {
while (safepoints.size() > 0) {
SafePointNode* sfpt = safepoints.pop()->as_SafePoint();
ciInstanceKlass* iklass = vec_box->box_type()->klass()->as_instance_klass();
int n_fields = iklass->nof_nonstatic_fields();
assert(n_fields == 1, "sanity");
uint first_ind = (sfpt->req() - sfpt->jvms()->scloff());
Node* sobj = new SafePointScalarObjectNode(vec_box->box_type(),
#ifdef ASSERT
NULL,
#endif // ASSERT
first_ind, /*n_fields=*/1);
first_ind, n_fields);
sobj->init_req(0, C->root());
sfpt->add_req(vec_value);