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6875577: CTW fails with /hotspot/src/share/vm/opto/memnode.cpp

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Fix do_null_check to check for unloaded klass for all oop pointers.

Reviewed-by: never, cfang
This commit is contained in:
Vladimir Kozlov 2009-08-28 11:19:33 -07:00
parent b357ca3ad1
commit 343b5b0bef
2 changed files with 5 additions and 1 deletions
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4
hotspot/src/share/vm/opto/graphKit.cpp
View file

@ -622,11 +622,13 @@ BuildCutout::~BuildCutout() {
//---------------------------PreserveReexecuteState----------------------------
PreserveReexecuteState::PreserveReexecuteState(GraphKit* kit) {
assert(!kit->stopped(), "must call stopped() before");
_kit = kit;
_sp = kit->sp();
_reexecute = kit->jvms()->_reexecute;
}
PreserveReexecuteState::~PreserveReexecuteState() {
if (_kit->stopped()) return;
_kit->jvms()->_reexecute = _reexecute;
_kit->set_sp(_sp);
}
@ -1123,7 +1125,7 @@ Node* GraphKit::null_check_common(Node* value, BasicType type,
case T_OBJECT : {
const Type *t = _gvn.type( value );
const TypeInstPtr* tp = t->isa_instptr();
const TypeOopPtr* tp = t->isa_oopptr();
if (tp != NULL && !tp->klass()->is_loaded()
// Only for do_null_check, not any of its siblings:
&& !assert_null && null_control == NULL) {

2
hotspot/src/share/vm/opto/library_call.cpp
View file

@ -3894,6 +3894,7 @@ void LibraryCallKit::copy_to_clone(Node* obj, Node* alloc_obj, Node* obj_size, b
assert(obj_size != NULL, "");
Node* raw_obj = alloc_obj->in(1);
assert(alloc_obj->is_CheckCastPP() && raw_obj->is_Proj() && raw_obj->in(0)->is_Allocate(), "");
assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL, "should be more precise than Object");
if (ReduceBulkZeroing) {
// We will be completely responsible for initializing this object -
@ -4447,6 +4448,7 @@ LibraryCallKit::generate_arraycopy(const TypePtr* adr_type,
InitializeNode* init = alloc->initialization();
assert(init->is_complete(), "we just did this");
assert(dest->is_CheckCastPP(), "sanity");
assert(dest->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL, "type should be more precise than Object");
assert(dest->in(0)->in(0) == init, "dest pinned");
// Cast to Object for arraycopy.