* pt.c (unify): Replace gcc_unreachable with gcc_assert.

From-SVN: r87491

gcc/cp/ChangeLog

+2004-09-14  Nathan Sidwell  <nathan@codesourcery.com>
+
+	* pt.c (unify): Replace gcc_unreachable with gcc_assert.
+
 2004-09-13  Mark Mitchell  <mark@codesourcery.com>
 
 	PR c++/16162
@@ -520,7 +524,6 @@
 
 2004-08-25  Nathan Sidwell  <nathan@codesourcery.com>
 
-
 	* call.c (convert_class_to_reference): Adjust build_int_cst calls.
 	(build_user_type_conversion_1, convert_like_real,
 	build_java_interface_fn_ref, build_special_member_call): Likewise.
@@ -546,6 +549,7 @@
 
 	* repo.c (extract_string): Reset backquote after one character.
 	(get_base_filename): Fix indentation.
+
 2004-08-24  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* decl.c (cxx_init_decl_processing): Adjust

gcc/cp/pt.c

@@ -10109,10 +10109,9 @@ unify (tree tparms, tree targs, tree parm, tree arg, int strict)
       return 1;
 
     default:
-      if (IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (TREE_CODE (parm))))
-	{
+      gcc_assert (IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (TREE_CODE (parm))));
       
-	  /* We're looking at an expression.  This can happen with
+      /* We must be looking at an expression.  This can happen with
 	 something like: 
 	   
 	   template <int I>
@@ -10137,9 +10136,6 @@ unify (tree tparms, tree targs, tree parm, tree arg, int strict)
       else
 	return 0;
     }
-      gcc_unreachable ();
-      return 1;
-    }
 }
 
 /* Note that DECL can be defined in this translation unit, if