507
508 get_constant_pool(result);
509 // load pointer for resolved_references[] objArray
510 movptr(result, Address(result, ConstantPool::cache_offset_in_bytes()));
511 movptr(result, Address(result, ConstantPoolCache::resolved_references_offset_in_bytes()));
512 resolve_oop_handle(result, tmp);
513 load_heap_oop(result, Address(result, index,
514 UseCompressedOops ? Address::times_4 : Address::times_ptr,
515 arrayOopDesc::base_offset_in_bytes(T_OBJECT)), tmp);
516 }
517
518 // load cpool->resolved_klass_at(index)
519 void InterpreterMacroAssembler::load_resolved_klass_at_index(Register cpool,
520 Register index, Register klass) {
521 movw(index, Address(cpool, index, Address::times_ptr, sizeof(ConstantPool)));
522 Register resolved_klasses = cpool;
523 movptr(resolved_klasses, Address(cpool, ConstantPool::resolved_klasses_offset_in_bytes()));
524 movptr(klass, Address(resolved_klasses, index, Address::times_ptr, Array<Klass*>::base_offset_in_bytes()));
525 }
526
527 // Generate a subtype check: branch to ok_is_subtype if sub_klass is a
528 // subtype of super_klass.
529 //
530 // Args:
531 // rax: superklass
532 // Rsub_klass: subklass
533 //
534 // Kills:
535 // rcx, rdi
536 void InterpreterMacroAssembler::gen_subtype_check(Register Rsub_klass,
537 Label& ok_is_subtype) {
538 assert(Rsub_klass != rax, "rax holds superklass");
539 LP64_ONLY(assert(Rsub_klass != r14, "r14 holds locals");)
540 LP64_ONLY(assert(Rsub_klass != r13, "r13 holds bcp");)
541 assert(Rsub_klass != rcx, "rcx holds 2ndary super array length");
542 assert(Rsub_klass != rdi, "rdi holds 2ndary super array scan ptr");
543
544 // Profile the not-null value's klass.
545 profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi
546
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507
508 get_constant_pool(result);
509 // load pointer for resolved_references[] objArray
510 movptr(result, Address(result, ConstantPool::cache_offset_in_bytes()));
511 movptr(result, Address(result, ConstantPoolCache::resolved_references_offset_in_bytes()));
512 resolve_oop_handle(result, tmp);
513 load_heap_oop(result, Address(result, index,
514 UseCompressedOops ? Address::times_4 : Address::times_ptr,
515 arrayOopDesc::base_offset_in_bytes(T_OBJECT)), tmp);
516 }
517
518 // load cpool->resolved_klass_at(index)
519 void InterpreterMacroAssembler::load_resolved_klass_at_index(Register cpool,
520 Register index, Register klass) {
521 movw(index, Address(cpool, index, Address::times_ptr, sizeof(ConstantPool)));
522 Register resolved_klasses = cpool;
523 movptr(resolved_klasses, Address(cpool, ConstantPool::resolved_klasses_offset_in_bytes()));
524 movptr(klass, Address(resolved_klasses, index, Address::times_ptr, Array<Klass*>::base_offset_in_bytes()));
525 }
526
527 void InterpreterMacroAssembler::load_resolved_method_at_index(int byte_no,
528 Register cache,
529 Register index,
530 Register method) {
531 const int method_offset = in_bytes(
532 ConstantPoolCache::base_offset() +
533 ((byte_no == TemplateTable::f2_byte)
534 ? ConstantPoolCacheEntry::f2_offset()
535 : ConstantPoolCacheEntry::f1_offset()));
536
537 movptr(method, Address(cache, index, Address::times_ptr, method_offset)); // get f1 Method*
538 }
539
540 // Generate a subtype check: branch to ok_is_subtype if sub_klass is a
541 // subtype of super_klass.
542 //
543 // Args:
544 // rax: superklass
545 // Rsub_klass: subklass
546 //
547 // Kills:
548 // rcx, rdi
549 void InterpreterMacroAssembler::gen_subtype_check(Register Rsub_klass,
550 Label& ok_is_subtype) {
551 assert(Rsub_klass != rax, "rax holds superklass");
552 LP64_ONLY(assert(Rsub_klass != r14, "r14 holds locals");)
553 LP64_ONLY(assert(Rsub_klass != r13, "r13 holds bcp");)
554 assert(Rsub_klass != rcx, "rcx holds 2ndary super array length");
555 assert(Rsub_klass != rdi, "rdi holds 2ndary super array scan ptr");
556
557 // Profile the not-null value's klass.
558 profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi
559
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