Committed, MMIX: Fix invalid access in tc-mmix.c:get_putget_operands

[Hans-Peter Nilsson]

Another valgrind catch, test-case gas/mmix/err-builtin.s.  With syntax
error in input, either operand could be uninitialized.

	* config/tc-mmix.c (get_putget_operands): Mark both possible
	operands as invalid at beginning.

Index: tc-mmix.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-mmix.c,v
retrieving revision 1.11
diff -p -c -r1.11 tc-mmix.c
*** tc-mmix.c	10 Nov 2002 13:09:11 -0000	1.11
--- tc-mmix.c	10 Nov 2002 18:29:39 -0000
*************** get_putget_operands (insn, operands, exp
*** 542,547 ****
--- 542,552 ----

    input_line_pointer = p;

+   /* Initialize both possible operands to error state, in case we never
+      get further.  */
+   exp[0].X_op = O_illegal;
+   exp[1].X_op = O_illegal;
+
    if (insn->operands == mmix_operands_get)
      {
        expp_reg = &exp[0];
*************** get_putget_operands (insn, operands, exp
*** 572,581 ****
      {
        expp_sreg = &exp[0];
        expp_reg = &exp[1];
-
-       /* Initialize to error state in case we'll never call expression on
-          this operand.  */
-       expp_reg->X_op = O_illegal;

        sregp = p;
        c = get_symbol_end ();
--- 577,582 ----

brgds, H-P