Mercurial > hg > graal-compiler
diff src/share/vm/opto/output.cpp @ 331:cecd8eb4e0ca
6706829: Compressed Oops: add debug info for narrow oops
Summary: Add support for narrow oops in debug info to avoid decoding.
Reviewed-by: rasbold, never
| author | kvn |
|---|---|
| date | Wed, 10 Sep 2008 18:23:32 -0700 |
| parents | 9c2ecc2ffb12 |
| children | 4d9884b01ba6 |
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--- a/src/share/vm/opto/output.cpp Wed Sep 10 14:29:32 2008 -0700 +++ b/src/share/vm/opto/output.cpp Wed Sep 10 18:23:32 2008 -0700 @@ -685,6 +685,8 @@ } else if( t->base() == Type::Int && OptoReg::is_reg(regnum) ) { array->append(new_loc_value( _regalloc, regnum, Matcher::int_in_long ? Location::int_in_long : Location::normal )); + } else if( t->base() == Type::NarrowOop ) { + array->append(new_loc_value( _regalloc, regnum, Location::narrowoop )); } else { array->append(new_loc_value( _regalloc, regnum, _regalloc->is_oop(local) ? Location::oop : Location::normal )); } @@ -704,6 +706,13 @@ case Type::KlassPtr: // fall through array->append(new ConstantOopWriteValue(t->isa_oopptr()->const_oop()->encoding())); break; + case Type::NarrowOop: + if (t == TypeNarrowOop::NULL_PTR) { + array->append(new ConstantOopWriteValue(NULL)); + } else { + array->append(new ConstantOopWriteValue(t->make_ptr()->isa_oopptr()->const_oop()->encoding())); + } + break; case Type::Int: array->append(new ConstantIntValue(t->is_int()->get_con())); break; @@ -878,9 +887,14 @@ } } else if( !obj_node->is_Con() ) { OptoReg::Name obj_reg = _regalloc->get_reg_first(obj_node); - scval = new_loc_value( _regalloc, obj_reg, Location::oop ); + if( obj_node->bottom_type()->base() == Type::NarrowOop ) { + scval = new_loc_value( _regalloc, obj_reg, Location::narrowoop ); + } else { + scval = new_loc_value( _regalloc, obj_reg, Location::oop ); + } } else { - scval = new ConstantOopWriteValue(obj_node->bottom_type()->is_instptr()->const_oop()->encoding()); + const TypePtr *tp = obj_node->bottom_type()->make_ptr(); + scval = new ConstantOopWriteValue(tp->is_instptr()->const_oop()->encoding()); } OptoReg::Name box_reg = BoxLockNode::stack_slot(box_node);