1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
#![allow(non_upper_case_globals)]
use llvm::Struct;
use abi::{self, ArgType, FnType};
use context::CrateContext;
use type_::Type;
fn ty_size(ty: Type) -> usize {
abi::ty_size(ty, 4)
}
fn classify_ret_ty(ccx: &CrateContext, ret: &mut ArgType) {
if ret.ty.kind() == Struct && ty_size(ret.ty) > 32 {
ret.make_indirect(ccx);
} else {
ret.extend_integer_width_to(32);
}
}
fn classify_arg_ty(ccx: &CrateContext, arg: &mut ArgType) {
if arg.ty.kind() == Struct && ty_size(arg.ty) > 32 {
arg.make_indirect(ccx);
} else {
arg.extend_integer_width_to(32);
}
}
pub fn compute_abi_info(ccx: &CrateContext, fty: &mut FnType) {
if !fty.ret.is_ignore() {
classify_ret_ty(ccx, &mut fty.ret);
}
for arg in &mut fty.args {
if arg.is_ignore() {
continue;
}
classify_arg_ty(ccx, arg);
}
}