reg number REGNO. This could be a conditional expression
or could index an array. */
-#define REGNO_REG_CLASS(REGNO) (REGNO != 8 ? GENERAL_REGS : MAC_REGS)
+#define REGNO_REG_CLASS(REGNO) (REGNO != MAC_REG ? GENERAL_REGS : MAC_REGS)
/* The class value for index registers, and the one for base regs. */