(TRUTH_XOR_EXPR): New tree code.

From-SVN: r2991

gcc/tree.def

@@ -514,12 +514,13 @@ DEFTREECODE (BIT_NOT_EXPR, "bit_not_expr", "1", 1)
 /* Combination of boolean values or of integers considered only
    as zero or nonzero.  ANDIF and ORIF allow the second operand
    not to be computed if the value of the expression is determined
-   from the first operand.  AND and OR always compute the second
+   from the first operand.  AND, OR, and XOR always compute the second
    operand whether its value is needed or not (for side effects).  */
 DEFTREECODE (TRUTH_ANDIF_EXPR, "truth_andif_expr", "e", 2)
 DEFTREECODE (TRUTH_ORIF_EXPR, "truth_orif_expr", "e", 2)
 DEFTREECODE (TRUTH_AND_EXPR, "truth_and_expr", "2", 2)
 DEFTREECODE (TRUTH_OR_EXPR, "truth_or_expr", "2", 2)
+DEFTREECODE (TRUTH_XOR_EXPR, "truth_xor_expr", "2", 2)
 DEFTREECODE (TRUTH_NOT_EXPR, "truth_not_expr", "e", 1)
 
 /* Relational operators.