re PR c/23576 (tree check: expected class ‘type’, have exceptional’ (error_mark)…

re PR c/23576 (tree check: expected class ‘type’, have exceptional’ (error_mark) in grokdeclarator, at c-decl.c:4252)

2005-10-04  Richard Guenther  <rguenther@suse.de>

	PR c/23576
	* c-decl.c (grokdeclarator): Don't write to fields
	of error_mark_node.

	* gcc.dg/noncompile/pr23576.c: New testcase.

From-SVN: r104943

gcc/ChangeLog

+2005-10-04  Richard Guenther  <rguenther@suse.de>
+
+	PR c/23576
+	* c-decl.c (grokdeclarator): Don't write to fields
+	of error_mark_node.
+
 2005-10-04  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR middle-end/23125

gcc/c-decl.c

@@ -4248,16 +4248,19 @@ grokdeclarator (const struct c_declarator *declarator,
 	    else
 	      type = build_array_type (type, itype);
 
-	    if (size_varies)
-	      C_TYPE_VARIABLE_SIZE (type) = 1;
-
-	    /* The GCC extension for zero-length arrays differs from
-	       ISO flexible array members in that sizeof yields
-	       zero.  */
-	    if (size && integer_zerop (size))
+	    if (type != error_mark_node)
 	      {
-		TYPE_SIZE (type) = bitsize_zero_node;
-		TYPE_SIZE_UNIT (type) = size_zero_node;
+		if (size_varies)
+		C_TYPE_VARIABLE_SIZE (type) = 1;
+
+		/* The GCC extension for zero-length arrays differs from
+		   ISO flexible array members in that sizeof yields
+		   zero.  */
+		if (size && integer_zerop (size))
+		  {
+		    TYPE_SIZE (type) = bitsize_zero_node;
+		    TYPE_SIZE_UNIT (type) = size_zero_node;
+		  }
 	      }
 
 	    if (decl_context != PARM

gcc/testsuite/ChangeLog

+2005-10-04  Richard Guenther  <rguenther@suse.de>
+
+	PR c/23576
+	* gcc.dg/noncompile/pr23576.c: New testcase.
+
 2005-10-04  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR middle-end/23125

gcc/testsuite/gcc.dg/noncompile/pr23576.c

+struct ipr_path_entry path[0]; /* { dg-error "array type has incomplete element type" } */