re PR middle-end/38556 (Revision 142792 breaks bootstrap)

2008-12-17  H.J. Lu  <hongjiu.lu@intel.com>

	PR middle-end/38556
	* calls.c (expand_call): Check outgoing_reg_parm_stack_space
	only if REG_PARM_STACK_SPACE is defined.

From-SVN: r142794

gcc/ChangeLog

-2008-12-12  Jan Hubicka  <jh@suse.cz>
+2008-12-17  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR middle-end/38556
+	* calls.c (expand_call): Check outgoing_reg_parm_stack_space
+	only if REG_PARM_STACK_SPACE is defined.
+
+2008-12-17  Jan Hubicka  <jh@suse.cz>
 	    Kai Tietz <kai.tietz@onevision.com>
 
 	* calls.c (expand_call): Do not sibcall if
 	outgoing_reg_parm_stack_space does not match.
 
-2008-12-12  Anatoly Sokolov  <aesok@post.ru>
+2008-12-16  Anatoly Sokolov  <aesok@post.ru>
 
 	* config/avr/avr.c (avr_mcu_t): Add attiny87, attiny327, at90pwm81,
 	atmega16m1, at90scr100, atmega128rfa1, m3000f, m3000s and m3001b

gcc/calls.c

@@ -2298,10 +2298,12 @@ expand_call (tree exp, rtx target, int ignore)
 	 It does not seem worth the effort since few optimizable
 	 sibling calls will return a structure.  */
       || structure_value_addr != NULL_RTX
+#ifdef REG_PARM_STACK_SPACE
       /* If outgoing reg parm stack space changes, we can not do sibcall.  */
       || (OUTGOING_REG_PARM_STACK_SPACE (funtype)
 	  != OUTGOING_REG_PARM_STACK_SPACE (TREE_TYPE (current_function_decl)))
       || (reg_parm_stack_space != REG_PARM_STACK_SPACE (fndecl))
+#endif
       /* Check whether the target is able to optimize the call
 	 into a sibcall.  */
       || !targetm.function_ok_for_sibcall (fndecl, exp)