5119 // get mirror
5120 const int mirror_offset = in_bytes(Klass::java_mirror_offset());
5121 load_method_holder(mirror, method);
5122 movptr(mirror, Address(mirror, mirror_offset));
5123 resolve_oop_handle(mirror, tmp);
5124 }
5125
5126 void MacroAssembler::load_method_holder_cld(Register rresult, Register rmethod) {
5127 load_method_holder(rresult, rmethod);
5128 movptr(rresult, Address(rresult, InstanceKlass::class_loader_data_offset()));
5129 }
5130
5131 void MacroAssembler::load_method_holder(Register holder, Register method) {
5132 movptr(holder, Address(method, Method::const_offset())); // ConstMethod*
5133 movptr(holder, Address(holder, ConstMethod::constants_offset())); // ConstantPool*
5134 movptr(holder, Address(holder, ConstantPool::pool_holder_offset())); // InstanceKlass*
5135 }
5136
5137 void MacroAssembler::load_narrow_klass_compact(Register dst, Register src) {
5138 assert(UseCompactObjectHeaders, "expect compact object headers");
5139 movq(dst, Address(src, oopDesc::mark_offset_in_bytes()));
5140 shrq(dst, markWord::klass_shift);
5141 }
5142
5143 void MacroAssembler::load_klass(Register dst, Register src, Register tmp) {
5144 assert_different_registers(src, tmp);
5145 assert_different_registers(dst, tmp);
5146
5147 if (UseCompactObjectHeaders) {
5148 load_narrow_klass_compact(dst, src);
5149 decode_klass_not_null(dst, tmp);
5150 } else if (UseCompressedClassPointers) {
5151 movl(dst, Address(src, oopDesc::klass_offset_in_bytes()));
5152 decode_klass_not_null(dst, tmp);
5153 } else {
5154 movptr(dst, Address(src, oopDesc::klass_offset_in_bytes()));
5155 }
5156 }
5157
5158 void MacroAssembler::store_klass(Register dst, Register src, Register tmp) {
5159 assert(!UseCompactObjectHeaders, "not with compact headers");
5160 assert_different_registers(src, tmp);
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5119 // get mirror
5120 const int mirror_offset = in_bytes(Klass::java_mirror_offset());
5121 load_method_holder(mirror, method);
5122 movptr(mirror, Address(mirror, mirror_offset));
5123 resolve_oop_handle(mirror, tmp);
5124 }
5125
5126 void MacroAssembler::load_method_holder_cld(Register rresult, Register rmethod) {
5127 load_method_holder(rresult, rmethod);
5128 movptr(rresult, Address(rresult, InstanceKlass::class_loader_data_offset()));
5129 }
5130
5131 void MacroAssembler::load_method_holder(Register holder, Register method) {
5132 movptr(holder, Address(method, Method::const_offset())); // ConstMethod*
5133 movptr(holder, Address(holder, ConstMethod::constants_offset())); // ConstantPool*
5134 movptr(holder, Address(holder, ConstantPool::pool_holder_offset())); // InstanceKlass*
5135 }
5136
5137 void MacroAssembler::load_narrow_klass_compact(Register dst, Register src) {
5138 assert(UseCompactObjectHeaders, "expect compact object headers");
5139 movl(dst, Address(src, oopDesc::mark_offset_in_bytes()));
5140 shrl(dst, markWord::klass_shift);
5141 }
5142
5143 void MacroAssembler::load_klass(Register dst, Register src, Register tmp) {
5144 assert_different_registers(src, tmp);
5145 assert_different_registers(dst, tmp);
5146
5147 if (UseCompactObjectHeaders) {
5148 load_narrow_klass_compact(dst, src);
5149 decode_klass_not_null(dst, tmp);
5150 } else if (UseCompressedClassPointers) {
5151 movl(dst, Address(src, oopDesc::klass_offset_in_bytes()));
5152 decode_klass_not_null(dst, tmp);
5153 } else {
5154 movptr(dst, Address(src, oopDesc::klass_offset_in_bytes()));
5155 }
5156 }
5157
5158 void MacroAssembler::store_klass(Register dst, Register src, Register tmp) {
5159 assert(!UseCompactObjectHeaders, "not with compact headers");
5160 assert_different_registers(src, tmp);
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