mips.c (epilogue_reg_mentioned_p): Delete unused function.

        * mips.c (epilogue_reg_mentioned_p): Delete unused function.
        (mips_epilogue_delay_slots): Likewise.
        (function_epilogue): Greatly simplify.
        (mips_expand_epilogue): If we have a null prologue/epilogue,
        then use a normal return insn.  Emit blockage insns before
        stack pointer adjustments.
        (mips_can_use_return_insn): Renamed from simple_epilogue_p.  All
        callers changed.  Do not use return insns if $31 is live in the
        function or if generating profiling information.
        * mips.h (DELAY_SLOTS_FOR_EPILOGUE): Delete.
        (ELIGIBLE_FOR_EPILOGUE_DELAY): Likewise.
        * mips.md (return): Remove expander and change the pattern to
        look like a standard "return" insn.
        (return_internal): Show use of $31 explictly.
        (epilogue expander): Enable.

From-SVN: r14412

1 files changed, 0 insertions, 16 deletions

diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h
index 6aa3402..74068d4 100644
--- a/gcc/config/mips/mips.h
+++ b/gcc/config/mips/mips.h
@@ -2241,22 +2241,6 @@ typedef struct mips_args {
 
 #define FUNCTION_EPILOGUE(FILE, SIZE) function_epilogue(FILE, SIZE)
 
-/* Define the number of delay slots needed for the function epilogue.
-
-   On the mips, we need a slot if either no stack has been allocated,
-   or the only register saved is the return register.  */
-
-#define DELAY_SLOTS_FOR_EPILOGUE mips_epilogue_delay_slots ()
-
-/* Define whether INSN can be placed in delay slot N for the epilogue.
-   No references to the stack must be made, since on the MIPS, the
-   delay slot is done after the stack has been cleaned up.  */
-
-#define ELIGIBLE_FOR_EPILOGUE_DELAY(INSN,N)				\
-  (get_attr_dslot (INSN) == DSLOT_NO					\
-   && get_attr_length (INSN) == 1					\
-   && ! epilogue_reg_mentioned_p (PATTERN (INSN)))
-
 /* Tell prologue and epilogue if register REGNO should be saved / restored.  */
 
 #define MUST_SAVE_REGISTER(regno) \