+Sun Nov 9 02:00:29 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
+
+ * a29k.h (ELIGIBLE_FOR_EPILOGUE_DELAY): Avoid loads from varying
+ addresses in the epilogue delay slot.
+
Sun Nov 9 01:40:40 1997 Manfred Hollstein (manfred@s-direktnet.de)
* m88k/dgux.h (ASM_CPU_SPEC): Reformatted to suppress wrong whitespace
On the 29k, we must be able to place it in a delay slot, it must
not use sp if the frame pointer cannot be eliminated, and it cannot
- use local regs if we need to push the register stack. */
+ use local regs if we need to push the register stack.
+ If this is a SET with a memory as source, it might load from
+ a stack slot, unless the address is constant. */
#define ELIGIBLE_FOR_EPILOGUE_DELAY(INSN,N) \
(get_attr_in_delay_slot (INSN) == IN_DELAY_SLOT_YES \
&& ! (frame_pointer_needed \
&& reg_mentioned_p (stack_pointer_rtx, PATTERN (INSN))) \
- && ! (needs_regstack_p () && uses_local_reg_p (PATTERN (INSN))))
+ && ! (needs_regstack_p () && uses_local_reg_p (PATTERN (INSN))) \
+ && (GET_CODE (PATTERN (INSN)) != SET \
+ || GET_CODE (SET_SRC (PATTERN (INSN))) != MEM \
+ || ! rtx_varies_p (XEXP (SET_SRC (PATTERN (INSN)), 0))))
\f
/* Output assembler code for a block containing the constant parts
of a trampoline, leaving space for the variable parts.