re PR target/25406 (gcc.dg/20030625-1.c, gcc.dg/20050620-1.c, gcc.dg/940510-1.c,…

re PR target/25406 (gcc.dg/20030625-1.c, gcc.dg/20050620-1.c, gcc.dg/940510-1.c, gcc.dg/c99-flex-array-1.c, gcc.dg/pr14475.c, and gcc.dg/noncompile/incomplete-1.c fail on powerpc-darwin)

	PR target/25406
	* config/rs6000/rs6000.c (rs6000_special_round_type_align): Handle
	error_mark_node.  Make alignment params unsigned.
	* config/rs6000/rs6000-protos.h
	(rs6000_special_round_type_align): Update prototype.
	(rs6000_machopic_legitimize_pic_address): Remove arg names.

From-SVN: r108562

gcc/ChangeLog

+2005-12-15  Alan Modra  <amodra@bigpond.net.au>
+
+	PR target/25406
+	* config/rs6000/rs6000.c (rs6000_special_round_type_align): Handle
+	error_mark_node.  Make alignment params unsigned.
+	* config/rs6000/rs6000-protos.h
+	(rs6000_special_round_type_align): Update prototype.
+	(rs6000_machopic_legitimize_pic_address): Remove arg names.
+
 2005-12-14  Ulrich Weigand  <uweigand@de.ibm.com>
 
 	PR rtl-optimization/25310

gcc/config/rs6000/rs6000-protos.h

@@ -105,14 +105,13 @@ extern rtx rs6000_return_addr (int, rtx);
 extern void rs6000_output_symbol_ref (FILE*, rtx);
 extern HOST_WIDE_INT rs6000_initial_elimination_offset (int, int);
 
-extern rtx rs6000_machopic_legitimize_pic_address (rtx orig,
-						   enum machine_mode mode,
-						   rtx reg);
-
+extern rtx rs6000_machopic_legitimize_pic_address (rtx, enum machine_mode,
+						   rtx);
 #endif /* RTX_CODE */
 
 #ifdef TREE_CODE
-extern unsigned int rs6000_special_round_type_align (tree, int, int);
+extern unsigned int rs6000_special_round_type_align (tree, unsigned int,
+						     unsigned int);
 extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
 				  tree, int, int);
 extern int function_arg_boundary (enum machine_mode, tree);

gcc/config/rs6000/rs6000.c

@@ -2505,21 +2505,27 @@ invalid_e500_subreg (rtx op, enum machine_mode mode)
    field is an FP double while the FP fields remain word aligned.  */
 
 unsigned int
-rs6000_special_round_type_align (tree type, int computed, int specified)
+rs6000_special_round_type_align (tree type, unsigned int computed,
+				 unsigned int specified)
 {
+  unsigned int align = MAX (computed, specified);
   tree field = TYPE_FIELDS (type);
 
   /* Skip all non field decls */
   while (field != NULL && TREE_CODE (field) != FIELD_DECL)
     field = TREE_CHAIN (field);
 
-  if (field == NULL || field == type
-      || TYPE_MODE (TREE_CODE (TREE_TYPE (field)) == ARRAY_TYPE
-		    ? get_inner_array_type (field)
-		    : TREE_TYPE (field)) != DFmode)
-    return MAX (computed, specified);
+  if (field != NULL && field != type)
+    {
+      type = TREE_TYPE (field);
+      while (TREE_CODE (type) == ARRAY_TYPE)
+	type = TREE_TYPE (type);
+
+      if (type != error_mark_node && TYPE_MODE (type) == DFmode)
+	align = MAX (align, 64);
+    }
 
-  return MAX (MAX (computed, specified), 64);
+  return align;
 }
 
 /* Return 1 for an operand in small memory on V.4/eabi.  */