re PR c++/67845 (ICE on invalid use of const qualifier on x86_64-linux-gnu in…

re PR c++/67845 (ICE on invalid use of const qualifier on x86_64-linux-gnu in merge_types, at cp/typeck.c:854)

/cp
2015-10-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/67845
	* decl.c (grokfndecl): In case of erroneous cv-qualified non-member
	functions consistently reset TREE_TYPE (decl) too.

/testsuite
2015-10-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/67845
	* g++.dg/other/cv_func4.C: New.

From-SVN: r229523

gcc/cp/ChangeLog

+2015-10-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/67845
+	* decl.c (grokfndecl): In case of erroneous cv-qualified non-member
+	functions consistently reset TREE_TYPE (decl) too.
+
 2015-10-28  Jason Merrill  <jason@redhat.com>
 
 	DR 1518

gcc/cp/decl.c

@@ -7998,6 +7998,11 @@ grokfndecl (tree ctype,
   DECL_EXTERNAL (decl) = 1;
   if (TREE_CODE (type) == FUNCTION_TYPE)
     {
+      if (quals || rqual)
+	TREE_TYPE (decl) = apply_memfn_quals (TREE_TYPE (decl),
+					      TYPE_UNQUALIFIED,
+					      REF_QUAL_NONE);
+
       if (quals)
 	{
 	  error (ctype

gcc/testsuite/ChangeLog

+2015-10-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/67845
+	* g++.dg/other/cv_func4.C: New.
+
 2015-10-29  Richard Biener  <rguenther@suse.de>
 
 	PR middle-end/56956

gcc/testsuite/g++.dg/other/cv_func4.C

+// PR c++/67845
+
+typedef void F () const;
+
+F foo;  // { dg-error "cv-qualifier" }
+void foo ();