rustc_target/callconv/
sparc.rs

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1use rustc_abi::{HasDataLayout, Size};
2
3use crate::callconv::{ArgAbi, FnAbi, Reg, Uniform};
4
5fn classify_ret<Ty, C>(cx: &C, ret: &mut ArgAbi<'_, Ty>, offset: &mut Size)
6where
7    C: HasDataLayout,
8{
9    if !ret.layout.is_aggregate() {
10        ret.extend_integer_width_to(32);
11    } else {
12        ret.make_indirect();
13        *offset += cx.data_layout().pointer_size;
14    }
15}
16
17fn classify_arg<Ty, C>(cx: &C, arg: &mut ArgAbi<'_, Ty>, offset: &mut Size)
18where
19    C: HasDataLayout,
20{
21    if !arg.layout.is_sized() {
22        // Not touching this...
23        return;
24    }
25    let dl = cx.data_layout();
26    let size = arg.layout.size;
27    let align = arg.layout.align.max(dl.i32_align).min(dl.i64_align).abi;
28
29    if arg.layout.is_aggregate() {
30        let pad_i32 = !offset.is_aligned(align);
31        arg.cast_to_and_pad_i32(Uniform::new(Reg::i32(), size), pad_i32);
32    } else {
33        arg.extend_integer_width_to(32);
34    }
35
36    *offset = offset.align_to(align) + size.align_to(align);
37}
38
39pub(crate) fn compute_abi_info<Ty, C>(cx: &C, fn_abi: &mut FnAbi<'_, Ty>)
40where
41    C: HasDataLayout,
42{
43    let mut offset = Size::ZERO;
44    if !fn_abi.ret.is_ignore() {
45        classify_ret(cx, &mut fn_abi.ret, &mut offset);
46    }
47
48    for arg in fn_abi.args.iter_mut() {
49        if arg.is_ignore() {
50            continue;
51        }
52        classify_arg(cx, arg, &mut offset);
53    }
54}
rustc_target/callconv/sparc.rs

rustc_target/callconv/
sparc.rs
