361 // The method is a member invoker used by direct method handles.
362 if (VerifyMethodHandles) {
363 // make sure the trailing argument really is a MemberName (caller responsibility)
364 verify_klass(_masm, member_reg, VM_CLASS_ID(java_lang_invoke_MemberName),
365 "MemberName required for invokeVirtual etc.");
366 }
367
368 Address member_clazz( member_reg, NONZERO(java_lang_invoke_MemberName::clazz_offset()));
369 Address member_vmindex( member_reg, NONZERO(java_lang_invoke_MemberName::vmindex_offset()));
370 Address member_vmtarget( member_reg, NONZERO(java_lang_invoke_MemberName::method_offset()));
371 Address vmtarget_method( rbx_method, NONZERO(java_lang_invoke_ResolvedMethodName::vmtarget_offset()));
372
373 Register temp1_recv_klass = temp1;
374 if (iid != vmIntrinsics::_linkToStatic) {
375 __ verify_oop(receiver_reg);
376 if (iid == vmIntrinsics::_linkToSpecial) {
377 // Don't actually load the klass; just null-check the receiver.
378 __ null_check(receiver_reg);
379 } else {
380 // load receiver klass itself
381 __ null_check(receiver_reg, oopDesc::klass_offset_in_bytes());
382 __ load_klass(temp1_recv_klass, receiver_reg, temp2);
383 __ verify_klass_ptr(temp1_recv_klass);
384 }
385 BLOCK_COMMENT("check_receiver {");
386 // The receiver for the MemberName must be in receiver_reg.
387 // Check the receiver against the MemberName.clazz
388 if (VerifyMethodHandles && iid == vmIntrinsics::_linkToSpecial) {
389 // Did not load it above...
390 __ load_klass(temp1_recv_klass, receiver_reg, temp2);
391 __ verify_klass_ptr(temp1_recv_klass);
392 }
393 if (VerifyMethodHandles && iid != vmIntrinsics::_linkToInterface) {
394 Label L_ok;
395 Register temp2_defc = temp2;
396 __ load_heap_oop(temp2_defc, member_clazz, temp3);
397 load_klass_from_Class(_masm, temp2_defc);
398 __ verify_klass_ptr(temp2_defc);
399 __ check_klass_subtype(temp1_recv_klass, temp2_defc, temp3, L_ok);
400 // If we get here, the type check failed!
401 __ STOP("receiver class disagrees with MemberName.clazz");
402 __ bind(L_ok);
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361 // The method is a member invoker used by direct method handles.
362 if (VerifyMethodHandles) {
363 // make sure the trailing argument really is a MemberName (caller responsibility)
364 verify_klass(_masm, member_reg, VM_CLASS_ID(java_lang_invoke_MemberName),
365 "MemberName required for invokeVirtual etc.");
366 }
367
368 Address member_clazz( member_reg, NONZERO(java_lang_invoke_MemberName::clazz_offset()));
369 Address member_vmindex( member_reg, NONZERO(java_lang_invoke_MemberName::vmindex_offset()));
370 Address member_vmtarget( member_reg, NONZERO(java_lang_invoke_MemberName::method_offset()));
371 Address vmtarget_method( rbx_method, NONZERO(java_lang_invoke_ResolvedMethodName::vmtarget_offset()));
372
373 Register temp1_recv_klass = temp1;
374 if (iid != vmIntrinsics::_linkToStatic) {
375 __ verify_oop(receiver_reg);
376 if (iid == vmIntrinsics::_linkToSpecial) {
377 // Don't actually load the klass; just null-check the receiver.
378 __ null_check(receiver_reg);
379 } else {
380 // load receiver klass itself
381 __ load_klass(temp1_recv_klass, receiver_reg, temp2, true);
382 __ verify_klass_ptr(temp1_recv_klass);
383 }
384 BLOCK_COMMENT("check_receiver {");
385 // The receiver for the MemberName must be in receiver_reg.
386 // Check the receiver against the MemberName.clazz
387 if (VerifyMethodHandles && iid == vmIntrinsics::_linkToSpecial) {
388 // Did not load it above...
389 __ load_klass(temp1_recv_klass, receiver_reg, temp2);
390 __ verify_klass_ptr(temp1_recv_klass);
391 }
392 if (VerifyMethodHandles && iid != vmIntrinsics::_linkToInterface) {
393 Label L_ok;
394 Register temp2_defc = temp2;
395 __ load_heap_oop(temp2_defc, member_clazz, temp3);
396 load_klass_from_Class(_masm, temp2_defc);
397 __ verify_klass_ptr(temp2_defc);
398 __ check_klass_subtype(temp1_recv_klass, temp2_defc, temp3, L_ok);
399 // If we get here, the type check failed!
400 __ STOP("receiver class disagrees with MemberName.clazz");
401 __ bind(L_ok);
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