[PATCH]: cleanup for conversion exprs (2/4)

[Tomas Bily]

 Hi,

 this series of patches is doing small cleanup in using conversion
 expressions (CONVERT_EXPR, NOP_EXPR). Expression patterns described 
 below are replaced by new macro. This is intermediate patch for next 
 series of patches that merges differences between CONVERT_EXPR/NOP_EXPR 
 and removes NOP_EXPR.
 
 (TREE_CODE (EXP) == NOP_EXPR || TREE_CODE (EXP) == CONVERT_EXPR) 
 -> CONVERT_EXPR_P(EXP)

 case NOP_EXPR: case CONVERT_EXPR
 -> CASE_CONVERT

 -> means replaced by


 Bootstraped and tested on x86_64-linux, i686-linux, ppc-linux, ia64-linux.

 Ok?

 Greetings 
 Tomas


 Patch 2

 Changelog:

2008-05-07  Tomas Bily  <tbily@suse.cz>

	* objc-act.c (objc_generate_write_barrier, objc_finish_message_expr):
	Use CONVERT_EXPR_P.



Index: gcc/objc/objc-act.c
===================================================================
--- gcc/objc/objc-act.c	(revision 134751)
+++ gcc/objc/objc-act.c	(working copy)
@@ -3164,8 +3164,7 @@ objc_generate_write_barrier (tree lhs, e
       outer = TREE_OPERAND (lhs, 0);
 
       while (!strong_cast_p
-	     && (TREE_CODE (outer) == CONVERT_EXPR
-		 || TREE_CODE (outer) == NOP_EXPR
+	     && (CONVERT_EXPR_P (outer)
 		 || TREE_CODE (outer) == NON_LVALUE_EXPR))
 	{
 	  tree lhstype = TREE_TYPE (outer);
@@ -6267,8 +6266,7 @@ objc_finish_message_expr (tree receiver,
   rtype = receiver;
   while (TREE_CODE (rtype) == COMPOUND_EXPR
 	      || TREE_CODE (rtype) == MODIFY_EXPR
-	      || TREE_CODE (rtype) == NOP_EXPR
-	      || TREE_CODE (rtype) == CONVERT_EXPR
+	      || CONVERT_EXPR_P (rtype)
 	      || TREE_CODE (rtype) == COMPONENT_REF)
     rtype = TREE_OPERAND (rtype, 0);
   self = (rtype == self_decl);