+ {
+ /* The all-important stack pointer. */
+ SET_REGNO_REG_SET (new_live_at_end, STACK_POINTER_REGNUM);
+
+ /* Any reference to any pseudo before reload is a potential
+ reference of the frame pointer. */
+ SET_REGNO_REG_SET (new_live_at_end, FRAME_POINTER_REGNUM);
+
+#if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM
+ /* Pseudos with argument area equivalences may require
+ reloading via the argument pointer. */
+ if (fixed_regs[ARG_POINTER_REGNUM])
+ SET_REGNO_REG_SET (new_live_at_end, ARG_POINTER_REGNUM);
+#endif
+
+#ifdef PIC_OFFSET_TABLE_REGNUM
+ /* Any constant, or pseudo with constant equivalences, may
+ require reloading from memory using the pic register. */
+ if (fixed_regs[PIC_OFFSET_TABLE_REGNUM])
+ SET_REGNO_REG_SET (new_live_at_end, PIC_OFFSET_TABLE_REGNUM);
+#endif
+ }