rustc-ap-rustc_target 256.0.0

// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

use abi::call::{ArgType, FnType, };
use abi::{HasDataLayout, LayoutOf, TyLayout, TyLayoutMethods};

fn classify_ret_ty<'a, Ty, C>(_tuncx: C, ret: &mut ArgType<'a, Ty>)
  where Ty: TyLayoutMethods<'a, C> + Copy,
        C: LayoutOf<Ty = Ty, TyLayout = TyLayout<'a, Ty>> + HasDataLayout
{
  ret.extend_integer_width_to(32);
}

fn classify_arg_ty<'a, Ty, C>(_cx: C, arg: &mut ArgType<'a, Ty>)
  where Ty: TyLayoutMethods<'a, C> + Copy,
        C: LayoutOf<Ty = Ty, TyLayout = TyLayout<'a, Ty>> + HasDataLayout
{
  arg.extend_integer_width_to(32);
}

pub fn compute_abi_info<'a, Ty, C>(cx: C, fty: &mut FnType<'a, Ty>)
  where Ty: TyLayoutMethods<'a, C> + Copy,
        C: LayoutOf<Ty = Ty, TyLayout = TyLayout<'a, Ty>> + HasDataLayout
{
  if !fty.ret.is_ignore() {
    classify_ret_ty(cx, &mut fty.ret);
  }

  for arg in &mut fty.args {
    if arg.is_ignore() {
      continue;
    }
    classify_arg_ty(cx, arg);
  }
}