Re: [fortran] add __builtin_unreachable

[Tobias Burnus]

Jan Hubicka wrote:

this patch add __buliltin_unreachable to Fortran FE and also cleans up the code 
a bit

Bootstrapped/regtested x86_64-linux, OK?

The Fortran part looks okay.

        * f95-lang.c (gfc_define_builtin): Use set_call_expr_flags.
        (ATTR_NOTHROW_LEAF_MALLOC_LIST,
        ATTR_CONST_NORETURN_NOTHROW_LEAF_LIST): New lists.
        (gfc_init_builtin_functions): Add __builtin_unreachable;
        tidy malloc/calloc.

        * calls.c (set_call_expr_flags): New.
        * tree.h (set_call_expr_flags): Declare.

Tobias