src/hotspot/cpu/x86/methodHandles_x86.cpp

rev 50039 : 8200623: Primitive heap access for interpreter BarrierSetAssembler/x86

*** 173,183 ****
    __ verify_oop(method_temp);
    __ load_heap_oop(method_temp, Address(method_temp, NONZERO(java_lang_invoke_LambdaForm::vmentry_offset_in_bytes())), temp2);
    __ verify_oop(method_temp);
    __ load_heap_oop(method_temp, Address(method_temp, NONZERO(java_lang_invoke_MemberName::method_offset_in_bytes())), temp2);
    __ verify_oop(method_temp);
!   __ movptr(method_temp, Address(method_temp, NONZERO(java_lang_invoke_ResolvedMethodName::vmtarget_offset_in_bytes())));
  
    if (VerifyMethodHandles && !for_compiler_entry) {
      // make sure recv is already on stack
      __ movptr(temp2, Address(method_temp, Method::const_offset()));
      __ load_sized_value(temp2,
--- 173,185 ----
    __ verify_oop(method_temp);
    __ load_heap_oop(method_temp, Address(method_temp, NONZERO(java_lang_invoke_LambdaForm::vmentry_offset_in_bytes())), temp2);
    __ verify_oop(method_temp);
    __ load_heap_oop(method_temp, Address(method_temp, NONZERO(java_lang_invoke_MemberName::method_offset_in_bytes())), temp2);
    __ verify_oop(method_temp);
!   __ access_load_at(T_ADDRESS, IN_HEAP, method_temp,
!                     Address(method_temp, NONZERO(java_lang_invoke_ResolvedMethodName::vmtarget_offset_in_bytes())),
!                     noreg, noreg);
  
    if (VerifyMethodHandles && !for_compiler_entry) {
      // make sure recv is already on stack
      __ movptr(temp2, Address(method_temp, Method::const_offset()));
      __ load_sized_value(temp2,
*** 388,406 ****
      case vmIntrinsics::_linkToSpecial:
        if (VerifyMethodHandles) {
          verify_ref_kind(_masm, JVM_REF_invokeSpecial, member_reg, temp3);
        }
        __ load_heap_oop(rbx_method, member_vmtarget);
!       __ movptr(rbx_method, vmtarget_method);
        break;
  
      case vmIntrinsics::_linkToStatic:
        if (VerifyMethodHandles) {
          verify_ref_kind(_masm, JVM_REF_invokeStatic, member_reg, temp3);
        }
        __ load_heap_oop(rbx_method, member_vmtarget);
!       __ movptr(rbx_method, vmtarget_method);
        break;
  
      case vmIntrinsics::_linkToVirtual:
      {
        // same as TemplateTable::invokevirtual,
--- 390,408 ----
      case vmIntrinsics::_linkToSpecial:
        if (VerifyMethodHandles) {
          verify_ref_kind(_masm, JVM_REF_invokeSpecial, member_reg, temp3);
        }
        __ load_heap_oop(rbx_method, member_vmtarget);
!       __ access_load_at(T_ADDRESS, IN_HEAP, rbx_method, vmtarget_method, noreg, noreg);
        break;
  
      case vmIntrinsics::_linkToStatic:
        if (VerifyMethodHandles) {
          verify_ref_kind(_masm, JVM_REF_invokeStatic, member_reg, temp3);
        }
        __ load_heap_oop(rbx_method, member_vmtarget);
!       __ access_load_at(T_ADDRESS, IN_HEAP, rbx_method, vmtarget_method, noreg, noreg);
        break;
  
      case vmIntrinsics::_linkToVirtual:
      {
        // same as TemplateTable::invokevirtual,
*** 410,420 ****
          verify_ref_kind(_masm, JVM_REF_invokeVirtual, member_reg, temp3);
        }
  
        // pick out the vtable index from the MemberName, and then we can discard it:
        Register temp2_index = temp2;
!       __ movptr(temp2_index, member_vmindex);
  
        if (VerifyMethodHandles) {
          Label L_index_ok;
          __ cmpl(temp2_index, 0);
          __ jcc(Assembler::greaterEqual, L_index_ok);
--- 412,422 ----
          verify_ref_kind(_masm, JVM_REF_invokeVirtual, member_reg, temp3);
        }
  
        // pick out the vtable index from the MemberName, and then we can discard it:
        Register temp2_index = temp2;
!       __ access_load_at(T_ADDRESS, IN_HEAP, temp2_index, member_vmindex, noreg, noreg);
  
        if (VerifyMethodHandles) {
          Label L_index_ok;
          __ cmpl(temp2_index, 0);
          __ jcc(Assembler::greaterEqual, L_index_ok);
*** 444,454 ****
        __ load_heap_oop(temp3_intf, member_clazz);
        load_klass_from_Class(_masm, temp3_intf);
        __ verify_klass_ptr(temp3_intf);
  
        Register rbx_index = rbx_method;
!       __ movptr(rbx_index, member_vmindex);
        if (VerifyMethodHandles) {
          Label L;
          __ cmpl(rbx_index, 0);
          __ jcc(Assembler::greaterEqual, L);
          __ STOP("invalid vtable index for MH.invokeInterface");
--- 446,456 ----
        __ load_heap_oop(temp3_intf, member_clazz);
        load_klass_from_Class(_masm, temp3_intf);
        __ verify_klass_ptr(temp3_intf);
  
        Register rbx_index = rbx_method;
!       __ access_load_at(T_ADDRESS, IN_HEAP, rbx_index, member_vmindex, noreg, noreg);
        if (VerifyMethodHandles) {
          Label L;
          __ cmpl(rbx_index, 0);
          __ jcc(Assembler::greaterEqual, L);
          __ STOP("invalid vtable index for MH.invokeInterface");