5122 // get mirror
5123 const int mirror_offset = in_bytes(Klass::java_mirror_offset());
5124 load_method_holder(mirror, method);
5125 movptr(mirror, Address(mirror, mirror_offset));
5126 resolve_oop_handle(mirror, tmp);
5127 }
5128
5129 void MacroAssembler::load_method_holder_cld(Register rresult, Register rmethod) {
5130 load_method_holder(rresult, rmethod);
5131 movptr(rresult, Address(rresult, InstanceKlass::class_loader_data_offset()));
5132 }
5133
5134 void MacroAssembler::load_method_holder(Register holder, Register method) {
5135 movptr(holder, Address(method, Method::const_offset())); // ConstMethod*
5136 movptr(holder, Address(holder, ConstMethod::constants_offset())); // ConstantPool*
5137 movptr(holder, Address(holder, ConstantPool::pool_holder_offset())); // InstanceKlass*
5138 }
5139
5140 void MacroAssembler::load_narrow_klass_compact(Register dst, Register src) {
5141 assert(UseCompactObjectHeaders, "expect compact object headers");
5142 movq(dst, Address(src, oopDesc::mark_offset_in_bytes()));
5143 shrq(dst, markWord::klass_shift);
5144 }
5145
5146 void MacroAssembler::load_klass(Register dst, Register src, Register tmp) {
5147 assert_different_registers(src, tmp);
5148 assert_different_registers(dst, tmp);
5149
5150 if (UseCompactObjectHeaders) {
5151 load_narrow_klass_compact(dst, src);
5152 decode_klass_not_null(dst, tmp);
5153 } else if (UseCompressedClassPointers) {
5154 movl(dst, Address(src, oopDesc::klass_offset_in_bytes()));
5155 decode_klass_not_null(dst, tmp);
5156 } else {
5157 movptr(dst, Address(src, oopDesc::klass_offset_in_bytes()));
5158 }
5159 }
5160
5161 void MacroAssembler::store_klass(Register dst, Register src, Register tmp) {
5162 assert(!UseCompactObjectHeaders, "not with compact headers");
5163 assert_different_registers(src, tmp);
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5122 // get mirror
5123 const int mirror_offset = in_bytes(Klass::java_mirror_offset());
5124 load_method_holder(mirror, method);
5125 movptr(mirror, Address(mirror, mirror_offset));
5126 resolve_oop_handle(mirror, tmp);
5127 }
5128
5129 void MacroAssembler::load_method_holder_cld(Register rresult, Register rmethod) {
5130 load_method_holder(rresult, rmethod);
5131 movptr(rresult, Address(rresult, InstanceKlass::class_loader_data_offset()));
5132 }
5133
5134 void MacroAssembler::load_method_holder(Register holder, Register method) {
5135 movptr(holder, Address(method, Method::const_offset())); // ConstMethod*
5136 movptr(holder, Address(holder, ConstMethod::constants_offset())); // ConstantPool*
5137 movptr(holder, Address(holder, ConstantPool::pool_holder_offset())); // InstanceKlass*
5138 }
5139
5140 void MacroAssembler::load_narrow_klass_compact(Register dst, Register src) {
5141 assert(UseCompactObjectHeaders, "expect compact object headers");
5142 movl(dst, Address(src, oopDesc::mark_offset_in_bytes()));
5143 shrl(dst, markWord::klass_shift);
5144 }
5145
5146 void MacroAssembler::load_klass(Register dst, Register src, Register tmp) {
5147 assert_different_registers(src, tmp);
5148 assert_different_registers(dst, tmp);
5149
5150 if (UseCompactObjectHeaders) {
5151 load_narrow_klass_compact(dst, src);
5152 decode_klass_not_null(dst, tmp);
5153 } else if (UseCompressedClassPointers) {
5154 movl(dst, Address(src, oopDesc::klass_offset_in_bytes()));
5155 decode_klass_not_null(dst, tmp);
5156 } else {
5157 movptr(dst, Address(src, oopDesc::klass_offset_in_bytes()));
5158 }
5159 }
5160
5161 void MacroAssembler::store_klass(Register dst, Register src, Register tmp) {
5162 assert(!UseCompactObjectHeaders, "not with compact headers");
5163 assert_different_registers(src, tmp);
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