Hello, I have just noticed that size_type_node is signed in fortran frontend (it caused an ice for me because unsigned_type_for returns it for pointers, and I inserted an assert that the result of unsigned_type_for is unsigned).
According to the comment in tree.h, size_type_node should correspond to "The C type `size_t'", and standard specifies that size_t is unsigned. Is this a bug in fortran frontend, or is size_type_node intentionally set in a different way? Zdenek
