re PR c++/11283 (ICE in build_conditional_expr)

        PR c++/11283
        * call.c (build_conditional_expr): Ignore cv-qual differences for
        non-class types.

From-SVN: r70667

gcc/cp/ChangeLog

+2003-08-21  Jason Merrill  <jason@redhat.com>
+
+	PR c++/11283
+	* call.c (build_conditional_expr): Ignore cv-qual differences for
+	non-class types.
+
 2003-08-21  Mark Mitchell  <mark@codesourcery.com>
 
 	PR c++/11551

gcc/cp/call.c

@@ -3171,7 +3171,11 @@ build_conditional_expr (tree arg1, tree arg2, tree arg3)
 	{
 	  arg2 = convert_like (conv2, arg2);
 	  arg2 = convert_from_reference (arg2);
-	  if (!same_type_p (TREE_TYPE (arg2), arg3_type))
+	  if (!same_type_p (TREE_TYPE (arg2), arg3_type)
+	      && CLASS_TYPE_P (arg3_type))
+	    /* The types need to match if we're converting to a class type.
+	       If not, we don't care about cv-qual mismatches, since
+	       non-class rvalues are not cv-qualified.  */
 	    abort ();
 	  arg2_type = TREE_TYPE (arg2);
 	}
@@ -3179,7 +3183,8 @@ build_conditional_expr (tree arg1, tree arg2, tree arg3)
 	{
 	  arg3 = convert_like (conv3, arg3);
 	  arg3 = convert_from_reference (arg3);
-	  if (!same_type_p (TREE_TYPE (arg3), arg2_type))
+	  if (!same_type_p (TREE_TYPE (arg3), arg2_type)
+	      && CLASS_TYPE_P (arg2_type))
 	    abort ();
 	  arg3_type = TREE_TYPE (arg3);
 	}

gcc/testsuite/g++.dg/conversion/cond6.C

+// PR c++/11283
+// Converting "a" to the type of "i" produces "int" rather than "const
+// int", which was causing build_conditional_expr to abort.  But we don't
+// care about cv-quals on non-class rvalues.
+
+struct A
+{
+  operator int ();
+};
+
+extern A a;
+extern const int i;
+extern bool b;
+
+int f ()
+{
+  return b ? a : i;
+}