[Bug target/57848] internal compiler error on builtin and '#pragma GCC target()' option

[ktietz at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57848

--- Comment #12 from Kai Tietz <ktietz at gcc dot gnu.org> ---
Does the following patch helps to you?

Index: c/c-decl.c
===================================================================
--- c/c-decl.c  (Revision 202491)
+++ c/c-decl.c  (Arbeitskopie)
@@ -3604,7 +3604,7 @@ c_builtin_function (tree decl)
   C_DECL_BUILTIN_PROTOTYPE (decl) = prototype_p (type);

   /* Should never be called on a symbol with a preexisting meaning.  */
-  gcc_assert (!I_SYMBOL_BINDING (id));
+  gcc_assert (TREE_CODE (decl) == CONST_DECL || !I_SYMBOL_BINDING (id));

   bind (id, decl, external_scope, /*invisible=*/true, /*nested=*/false,
        UNKNOWN_LOCATION);
@@ -3629,9 +3629,6 @@ c_builtin_function_ext_scope (tree decl)
   const char *name = IDENTIFIER_POINTER (id);
   C_DECL_BUILTIN_PROTOTYPE (decl) = prototype_p (type);

-  /* Should never be called on a symbol with a preexisting meaning.  */
-  gcc_assert (!I_SYMBOL_BINDING (id));
-
   bind (id, decl, external_scope, /*invisible=*/false, /*nested=*/false,
        UNKNOWN_LOCATION);