nir: Add support for lowering load/stores of shared variables

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

src/compiler/nir/nir_print.c

@@ -1057,6 +1057,7 @@ nir_print_shader(nir_shader *shader, FILE *fp)
    fprintf(fp, "inputs: %u\n", shader->num_inputs);
    fprintf(fp, "outputs: %u\n", shader->num_outputs);
    fprintf(fp, "uniforms: %u\n", shader->num_uniforms);
+   fprintf(fp, "shared: %u\n", shader->num_shared);
 
    nir_foreach_variable(var, &shader->uniforms) {
       print_var_decl(var, &state);