* don't write the destination register in a_load_ref_reg_unaligned() before

the reference has been used for the last time, as the destination
    register could be the base or index register of the reference

git-svn-id: trunk@33393 -

.gitattributes

@@ -10875,6 +10875,7 @@ tests/tbs/tb0614.pp svneol=native#text/pascal
 tests/tbs/tb0615.pp svneol=native#text/pascal
 tests/tbs/tb0616.pp svneol=native#text/pascal
 tests/tbs/tb0617.pp svneol=native#text/pascal
+tests/tbs/tb0618.pp svneol=native#text/plain
 tests/tbs/tb205.pp svneol=native#text/plain
 tests/tbs/tb610.pp svneol=native#text/pascal
 tests/tbs/tb613.pp svneol=native#text/plain

compiler/aarch64/cgcpu.pas

@@ -812,7 +812,7 @@ implementation
         if fromsize in [OS_64,OS_S64] then
           begin
             { split into two 32 bit loads }
-            hreg1:=makeregsize(register,OS_32);
+            hreg1:=getintregister(list,OS_32);
             hreg2:=getintregister(list,OS_32);
             if target_info.endian=endian_big then
               begin
@@ -831,6 +831,7 @@ implementation
                 inc(href.offset,4);
                 a_load_ref_reg(list,OS_32,OS_32,href,hreg2);
               end;
+            a_load_reg_reg(list,OS_32,OS_64,hreg1,register);
             list.concat(taicpu.op_reg_reg_const_const(A_BFI,register,makeregsize(hreg2,OS_64),32,32));
           end
        else

tests/tbs/tb0618.pp

@@ -0,0 +1,42 @@
+type
+     PStreamRec= ^TStreamRec;
+
+     TStreamRec = Packed Record
+       ObjType : byte;
+       Next : PStreamRec;
+     end;
+
+const
+   BaseRec : PStreamRec= nil;
+
+   RType1 : TStreamRec = (
+    ObjType : 79
+   );
+   RType2 : TStreamRec = (
+    objtype : 80
+   );
+
+
+procedure RegisterType(var R : TStreamRec);
+var
+  P : PStreamRec;
+
+begin
+  P := BaseRec;
+  while (P <> nil) and (P^.Objtype <> R.ObjType) do
+    P:=P^.Next;
+  if not assigned(P) then
+    begin
+      R.Next:=BaseRec;
+      BaseRec:=@R;
+    end;
+  { nothing to do here
+  else
+    P:=@R; }
+end;
+
+begin
+  RegisterType(Rtype1);
+  RegisterType(RType2);
+end.
+