nir: Add function nir_function_set_impl
This function is added for create strong relationship between
nir_function_impl and nir_function.
So that nir_function->impl->function == nir_function is always true when
(nir_function->impl != NULL && nir_function->impl != NIR_SERIALIZE_FUNC_HAS_IMPL)
And indeed this invariant is already done in functions validate_function and validate_function_impl
of nir_validate
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23820>
6 files changed
