After the recent r12-3278-
823685221de986a change, the testcase
gcc.target/aarch64/sve/acle/general-c/type_redef_1.c started
to ICE as the code was not ready for error_mark_node in the
type. This fixes that and the testcase now passes.
gcc/ChangeLog:
* config/aarch64/aarch64-sve-builtins.cc (register_vector_type):
Handle error_mark_node as the type of the type_decl.
installing an incorrect type. */
if (decl
&& TREE_CODE (decl) == TYPE_DECL
+ && TREE_TYPE (decl) != error_mark_node
&& TYPE_MAIN_VARIANT (TREE_TYPE (decl)) == vectype)
vectype = TREE_TYPE (decl);
acle_vector_types[0][type] = vectype;