calls.c (expand_call): When modes of target and valreg match, force sibcall…

calls.c (expand_call): When modes of target and valreg match,	force sibcall failure when target is a MEM.

	* calls.c (expand_call): When modes of target and valreg match,	force
	sibcall failure when target is a MEM.

From-SVN: r66260

gcc/ChangeLog

+2003-04-29  Olivier Hainque <hainque@act-europe.fr>
+
+	* calls.c (expand_call): When modes of target and valreg match,	force
+	sibcall failure when target is a MEM.
+
 2003-04-29  Geoffrey Keating  <geoffk@apple.com>
 
 	* doc/invoke.texi (Overall Options): Mention -x objective-c-header.

gcc/calls.c

@@ -3279,6 +3279,12 @@ expand_call (exp, target, ignore)
 	     If they refer to the same register, this move will be a no-op,
 	     except when function inlining is being done.  */
 	  emit_move_insn (target, valreg);
+
+	  /* If we are setting a MEM, this code must be executed.  Since it is
+	     emitted after the call insn, sibcall optimization cannot be
+	     performed in that case.  */
+	  if (GET_CODE (target) == MEM)
+	    sibcall_failure = 1;
 	}
       else if (TYPE_MODE (TREE_TYPE (exp)) == BLKmode)
 	{