5398 // get mirror
5399 const int mirror_offset = in_bytes(Klass::java_mirror_offset());
5400 load_method_holder(mirror, method);
5401 movptr(mirror, Address(mirror, mirror_offset));
5402 resolve_oop_handle(mirror, tmp);
5403 }
5404
5405 void MacroAssembler::load_method_holder_cld(Register rresult, Register rmethod) {
5406 load_method_holder(rresult, rmethod);
5407 movptr(rresult, Address(rresult, InstanceKlass::class_loader_data_offset()));
5408 }
5409
5410 void MacroAssembler::load_method_holder(Register holder, Register method) {
5411 movptr(holder, Address(method, Method::const_offset())); // ConstMethod*
5412 movptr(holder, Address(holder, ConstMethod::constants_offset())); // ConstantPool*
5413 movptr(holder, Address(holder, ConstantPool::pool_holder_offset())); // InstanceKlass*
5414 }
5415
5416 void MacroAssembler::load_narrow_klass_compact(Register dst, Register src) {
5417 assert(UseCompactObjectHeaders, "expect compact object headers");
5418 movq(dst, Address(src, oopDesc::mark_offset_in_bytes()));
5419 shrq(dst, markWord::klass_shift);
5420 }
5421
5422 void MacroAssembler::load_klass(Register dst, Register src, Register tmp) {
5423 assert_different_registers(src, tmp);
5424 assert_different_registers(dst, tmp);
5425
5426 if (UseCompactObjectHeaders) {
5427 load_narrow_klass_compact(dst, src);
5428 decode_klass_not_null(dst, tmp);
5429 } else {
5430 movl(dst, Address(src, oopDesc::klass_offset_in_bytes()));
5431 decode_klass_not_null(dst, tmp);
5432 }
5433 }
5434
5435 void MacroAssembler::store_klass(Register dst, Register src, Register tmp) {
5436 assert(!UseCompactObjectHeaders, "not with compact headers");
5437 assert_different_registers(src, tmp);
5438 assert_different_registers(dst, tmp);
5439 encode_klass_not_null(src, tmp);
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5398 // get mirror
5399 const int mirror_offset = in_bytes(Klass::java_mirror_offset());
5400 load_method_holder(mirror, method);
5401 movptr(mirror, Address(mirror, mirror_offset));
5402 resolve_oop_handle(mirror, tmp);
5403 }
5404
5405 void MacroAssembler::load_method_holder_cld(Register rresult, Register rmethod) {
5406 load_method_holder(rresult, rmethod);
5407 movptr(rresult, Address(rresult, InstanceKlass::class_loader_data_offset()));
5408 }
5409
5410 void MacroAssembler::load_method_holder(Register holder, Register method) {
5411 movptr(holder, Address(method, Method::const_offset())); // ConstMethod*
5412 movptr(holder, Address(holder, ConstMethod::constants_offset())); // ConstantPool*
5413 movptr(holder, Address(holder, ConstantPool::pool_holder_offset())); // InstanceKlass*
5414 }
5415
5416 void MacroAssembler::load_narrow_klass_compact(Register dst, Register src) {
5417 assert(UseCompactObjectHeaders, "expect compact object headers");
5418 movl(dst, Address(src, oopDesc::mark_offset_in_bytes()));
5419 shrl(dst, markWord::klass_shift);
5420 }
5421
5422 void MacroAssembler::load_klass(Register dst, Register src, Register tmp) {
5423 assert_different_registers(src, tmp);
5424 assert_different_registers(dst, tmp);
5425
5426 if (UseCompactObjectHeaders) {
5427 load_narrow_klass_compact(dst, src);
5428 decode_klass_not_null(dst, tmp);
5429 } else {
5430 movl(dst, Address(src, oopDesc::klass_offset_in_bytes()));
5431 decode_klass_not_null(dst, tmp);
5432 }
5433 }
5434
5435 void MacroAssembler::store_klass(Register dst, Register src, Register tmp) {
5436 assert(!UseCompactObjectHeaders, "not with compact headers");
5437 assert_different_registers(src, tmp);
5438 assert_different_registers(dst, tmp);
5439 encode_klass_not_null(src, tmp);
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