mips.h (CAN_ELIMINATE): Don't eliminate rap to $fp (s8), but rather HARD_FRAME_POINTER_REGNUM.

* config/mips/mips.h (CAN_ELIMINATE): Don't eliminate rap to $fp
(s8), but rather HARD_FRAME_POINTER_REGNUM.  Add parentheses
where appropriate.  Make the second reference to
leaf_function_p a function call, as intended.  Reindented.

From-SVN: r50899

gcc/ChangeLog

 2002-03-16  Alexandre Oliva  <aoliva@redhat.com>
 
+	* config/mips/mips.h (CAN_ELIMINATE): Don't eliminate rap to $fp
+	(s8), but rather HARD_FRAME_POINTER_REGNUM.  Add parentheses
+	where appropriate.  Make the second reference to
+	leaf_function_p a function call, as intended.  Reindented.
+
 	* config/mips/mips.h (ISA_HAS_COND_TRAP): Not available on MIPS16.
 	* config/mips/mips.md (trap) [TARGET_MIPS16]: Emit `break 0'.
 

gcc/config/mips/mips.h

@@ -2509,8 +2509,11 @@ extern struct mips_frame_info current_frame_info;
    */
 
 #define CAN_ELIMINATE(FROM, TO)						\
-  (((FROM) == RETURN_ADDRESS_POINTER_REGNUM && (! leaf_function_p ()	\
-   || (TO == GP_REG_FIRST + 31 && leaf_function_p)))   			\
+  (((FROM) == RETURN_ADDRESS_POINTER_REGNUM				\
+    && ((! leaf_function_p ()						\
+	 && ((TO) == STACK_POINTER_REGNUM				\
+ 	     || (TO) == HARD_FRAME_POINTER_REGNUM))			\
+	|| ((TO) == GP_REG_FIRST + 31 && leaf_function_p ())))  	\
    || ((FROM) != RETURN_ADDRESS_POINTER_REGNUM				\
       && ((TO) == HARD_FRAME_POINTER_REGNUM 				\
 	  || ((TO) == STACK_POINTER_REGNUM && ! frame_pointer_needed	\