- Removed what's called "GAS bugfix" for VCVTDQ2PD instruction. Rationale:

  o "Intel instruction set reference" states that source operand can be XMM register or memory, so GAS behavior
    is correct. If any other assembler expects an YMM register, it must be fixed elsewhere.
  o x86ins.dat does not allow YMM register as source operand for VCVTDQ2PD, and instructions are checked for validity
    before writing them out, therefore this code was simply never executed.

git-svn-id: trunk@34924 -

compiler/x86/agx86att.pas

@@ -293,7 +293,6 @@ interface
        op       : tasmop;
        calljmp  : boolean;
        i        : integer;
-       sreg     : string;
       begin
         if hp.typ <> ait_instruction then
           exit;
@@ -301,27 +300,6 @@ interface
         op:=taicpu(hp).opcode;
         calljmp:=is_calljmp(op);
 
-        // BUGFIX GAS-assembler
-        // Intel "Intel 64 and IA-32 Architectures Software Developers manual 12/2011"
-        // Intel:       VCVTDQ2PD  YMMREG, YMMREG/mem128 ((intel syntax))
-        // GAS:         VCVTDQ2PD  YMMREG, XMMREG/mem128 ((intel syntax))
-        if (op = A_VCVTDQ2PD) and
-           (taicpu(hp).ops = 2) and
-           (taicpu(hp).oper[0]^.typ = top_reg) and
-           (taicpu(hp).oper[1]^.typ = top_reg) then
-        begin
-          if ((taicpu(hp).oper[0]^.ot and OT_YMMREG) = OT_YMMREG) and
-             ((taicpu(hp).oper[1]^.ot and OT_YMMREG) = OT_YMMREG) then
-          begin
-            // change registertype in oper[0] from OT_YMMREG to OT_XMMREG
-            taicpu(hp).oper[0]^.ot := taicpu(hp).oper[0]^.ot and not(OT_YMMREG) or OT_XMMREG;
-
-            sreg := gas_regname(taicpu(hp).oper[0]^.reg);
-            if (copy(sreg, 1, 2) = '%y') or
-               (copy(sreg, 1, 2) = '%Y') then
-              taicpu(hp).oper[0]^.reg := gas_regnum_search('%x' + copy(sreg, 3, length(sreg) - 2));
-          end;
-        end;
         { see fNoInterUnitMovQ declaration comment }
         if fNoInterUnitMovQ then
           begin