It has been broken on the mainline since end of December. The attached
patchlet is copy-and-pasted from the same function in the c-family dir.
Tested on x86/Windows and x86-64/Linux, applied on the mainline.
2018-03-06 Eric Botcazou <ebotca...@adacore.com>
* gcc-interface/utils.c (def_builtin_1): Bail out on error_mark_node.
--
Eric Botcazou
Index: gcc-interface/utils.c
===================================================================
--- gcc-interface/utils.c (revision 258231)
+++ gcc-interface/utils.c (working copy)
@@ -6443,6 +6443,9 @@ def_builtin_1 (enum built_in_function fn
if (builtin_decl_explicit (fncode))
return;
+ if (fntype == error_mark_node)
+ return;
+
gcc_assert ((!both_p && !fallback_p)
|| !strncmp (name, "__builtin_",
strlen ("__builtin_")));