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8064703: crash running specjvm98's javac following 8060252

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Uncommon trap between arraycopy and initialization may leave array initialized

Reviewed-by: kvn, vlivanov, goetz
This commit is contained in:
Roland Westrelin 2014-12-01 11:59:56 +01:00
parent 65fe921d3d
commit 686e5a0a6f
4 changed files with 310 additions and 17 deletions
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11
hotspot/src/share/vm/opto/graphKit.cpp
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@ -2809,7 +2809,8 @@ Node* GraphKit::maybe_cast_profiled_receiver(Node* not_null_obj,
*/
Node* GraphKit::maybe_cast_profiled_obj(Node* obj,
ciKlass* type,
bool not_null) {
bool not_null,
SafePointNode* sfpt) {
// type == NULL if profiling tells us this object is always null
if (type != NULL) {
Deoptimization::DeoptReason class_reason = Deoptimization::Reason_speculate_class_check;
@ -2831,7 +2832,13 @@ Node* GraphKit::maybe_cast_profiled_obj(Node* obj,
ciKlass* exact_kls = type;
Node* slow_ctl = type_check_receiver(exact_obj, exact_kls, 1.0,
&exact_obj);
{
if (sfpt != NULL) {
GraphKit kit(sfpt->jvms());
PreserveJVMState pjvms(&kit);
kit.set_control(slow_ctl);
kit.uncommon_trap(class_reason,
Deoptimization::Action_maybe_recompile);
} else {
PreserveJVMState pjvms(this);
set_control(slow_ctl);
uncommon_trap(class_reason,