* print an "invalid segment override expression" error message in case a segment

  override uses an invalid (non-segment) register in the x86 inline asm reader
  (both for intel and att syntax)

git-svn-id: trunk@38391 -

compiler/x86/rax86att.pas

@@ -745,6 +745,8 @@ Implementation
                Begin
                  Consume(AS_COLON);
                  oper.InitRef;
+                 if not is_segment_reg(tempreg) then
+                   Message(asmr_e_invalid_seg_override);
                  oper.opr.ref.segment:=tempreg;
                  { This must absolutely be followed by a reference }
                  if not MaybeBuildReference then

compiler/x86/rax86int.pas

@@ -860,6 +860,8 @@ Unit Rax86int;
       begin
         if oper.opr.typ<>OPR_REFERENCE then
           internalerror(2018022801);
+        if not is_segment_reg(seg) then
+          Message(asmr_e_invalid_seg_override);
         if oper.opr.ref.segment<>NR_NO then
           begin
             if m_tp7 in current_settings.modeswitches then