archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-21 11:34:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge

Browse source
This commit is contained in:
Y. Srinivas Ramakrishna 2008-07-01 11:59:44 -07:00
commit 74ee57a572
477 changed files with 31302 additions and 2120 deletions
Download patch file Download diff file Expand all files Collapse all files

27
hotspot/src/share/vm/opto/macro.cpp
View file

@ -320,9 +320,9 @@ Node *PhaseMacroExpand::value_from_mem_phi(Node *mem, BasicType ft, const Type *
// Search the last value stored into the object's field.
Node *PhaseMacroExpand::value_from_mem(Node *sfpt_mem, BasicType ft, const Type *ftype, const TypeOopPtr *adr_t, Node *alloc) {
assert(adr_t->is_instance_field(), "instance required");
uint instance_id = adr_t->instance_id();
assert(instance_id == alloc->_idx, "wrong allocation");
assert(adr_t->is_known_instance_field(), "instance required");
int instance_id = adr_t->instance_id();
assert((uint)instance_id == alloc->_idx, "wrong allocation");
int alias_idx = C->get_alias_index(adr_t);
int offset = adr_t->offset();
@ -354,7 +354,7 @@ Node *PhaseMacroExpand::value_from_mem(Node *sfpt_mem, BasicType ft, const Type
const TypeOopPtr* atype = mem->as_Store()->adr_type()->isa_oopptr();
assert(atype != NULL, "address type must be oopptr");
assert(C->get_alias_index(atype) == alias_idx &&
atype->is_instance_field() && atype->offset() == offset &&
atype->is_known_instance_field() && atype->offset() == offset &&
atype->instance_id() == instance_id, "store is correct memory slice");
done = true;
} else if (mem->is_Phi()) {
@ -598,7 +598,7 @@ bool PhaseMacroExpand::scalar_replacement(AllocateNode *alloc, GrowableArray <Sa
field_type = TypeOopPtr::make_from_klass(elem_type->as_klass());
}
if (UseCompressedOops) {
field_type = field_type->is_oopptr()->make_narrowoop();
field_type = field_type->make_narrowoop();
basic_elem_type = T_NARROWOOP;
}
} else {
@ -666,9 +666,11 @@ bool PhaseMacroExpand::scalar_replacement(AllocateNode *alloc, GrowableArray <Sa
if (UseCompressedOops && field_type->isa_narrowoop()) {
// Enable "DecodeN(EncodeP(Allocate)) --> Allocate" transformation
// to be able scalar replace the allocation.
_igvn.set_delay_transform(false);
field_val = DecodeNNode::decode(&_igvn, field_val);
_igvn.set_delay_transform(true);
if (field_val->is_EncodeP()) {
field_val = field_val->in(1);
} else {
field_val = transform_later(new (C, 2) DecodeNNode(field_val, field_val->bottom_type()->make_ptr()));
}
}
sfpt->add_req(field_val);
}
@ -1676,7 +1678,14 @@ bool PhaseMacroExpand::expand_macro_nodes() {
success = eliminate_locking_node(n->as_AbstractLock());
break;
default:
assert(false, "unknown node type in macro list");
if (n->Opcode() == Op_Opaque1 || n->Opcode() == Op_Opaque2) {
_igvn.add_users_to_worklist(n);
_igvn.hash_delete(n);
_igvn.subsume_node(n, n->in(1));
success = true;
} else {
assert(false, "unknown node type in macro list");
}
}
assert(success == (C->macro_count() < old_macro_count), "elimination reduces macro count");
progress = progress || success;