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comparison src/share/vm/opto/parse1.cpp @ 164:c436414a719e

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6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions Summary: Add LoadNKlass and CMoveN nodes, use CmpN and ConN nodes to generate narrow oops compare instructions. Reviewed-by: never, rasbold
author kvn
date Wed, 21 May 2008 13:46:23 -0700
parents b789bcaf2dd9
children d1605aabd0a1
comparison
equal deleted inserted replaced
163:885ed790ecf0 164:c436414a719e
1899 1899
1900 // Insert a dynamic test for whether the instance needs 1900 // Insert a dynamic test for whether the instance needs
1901 // finalization. In general this will fold up since the concrete 1901 // finalization. In general this will fold up since the concrete
1902 // class is often visible so the access flags are constant. 1902 // class is often visible so the access flags are constant.
1903 Node* klass_addr = basic_plus_adr( receiver, receiver, oopDesc::klass_offset_in_bytes() ); 1903 Node* klass_addr = basic_plus_adr( receiver, receiver, oopDesc::klass_offset_in_bytes() );
1904 Node* klass = _gvn.transform(new (C, 3) LoadKlassNode(NULL, immutable_memory(), klass_addr, TypeInstPtr::KLASS)); 1904 Node* klass = _gvn.transform( LoadKlassNode::make(_gvn, immutable_memory(), klass_addr, TypeInstPtr::KLASS) );
1905 1905
1906 Node* access_flags_addr = basic_plus_adr(klass, klass, Klass::access_flags_offset_in_bytes() + sizeof(oopDesc)); 1906 Node* access_flags_addr = basic_plus_adr(klass, klass, Klass::access_flags_offset_in_bytes() + sizeof(oopDesc));
1907 Node* access_flags = make_load(NULL, access_flags_addr, TypeInt::INT, T_INT); 1907 Node* access_flags = make_load(NULL, access_flags_addr, TypeInt::INT, T_INT);
1908 1908
1909 Node* mask = _gvn.transform(new (C, 3) AndINode(access_flags, intcon(JVM_ACC_HAS_FINALIZER))); 1909 Node* mask = _gvn.transform(new (C, 3) AndINode(access_flags, intcon(JVM_ACC_HAS_FINALIZER)));