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7054512: Compress class pointers after perm gen removal

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Support of compress class pointers in the compilers.

Reviewed-by: kvn, twisti
This commit is contained in:
Roland Westrelin 2012-10-09 10:11:38 +02:00
parent 7162ad011c
commit 61eb5a0549
93 changed files with 1600 additions and 497 deletions
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2
hotspot/src/share/vm/opto/macro.cpp
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@ -2125,7 +2125,7 @@ void PhaseMacroExpand::expand_lock_node(LockNode *lock) {
Node* k_adr = basic_plus_adr(obj, oopDesc::klass_offset_in_bytes());
klass_node = transform_later( LoadKlassNode::make(_igvn, mem, k_adr, _igvn.type(k_adr)->is_ptr()) );
#ifdef _LP64
if (UseCompressedOops && klass_node->is_DecodeN()) {
if (UseCompressedKlassPointers && klass_node->is_DecodeNKlass()) {
assert(klass_node->in(1)->Opcode() == Op_LoadNKlass, "sanity");
klass_node->in(1)->init_req(0, ctrl);
} else