cranelift_codegen_meta/isa/
arm64.rs

1use crate::cdsl::isa::TargetIsa;
2use crate::cdsl::settings::SettingGroupBuilder;
3
4pub(crate) fn define() -> TargetIsa {
5    let mut settings = SettingGroupBuilder::new("arm64");
6
7    settings.add_bool(
8        "has_lse",
9        "Has Large System Extensions (FEAT_LSE) support.",
10        "",
11        false,
12    );
13    settings.add_bool(
14        "has_pauth",
15        "Has Pointer authentication (FEAT_PAuth) support; enables the use of \
16         non-HINT instructions, but does not have an effect on code generation \
17         by itself.",
18        "",
19        false,
20    );
21    settings.add_bool(
22        "has_fp16",
23        "Use half-precision floating point (FEAT_FP16) instructions.",
24        "",
25        false,
26    );
27    settings.add_bool(
28        "sign_return_address_all",
29        "If function return address signing is enabled, then apply it to all \
30        functions; does not have an effect on code generation by itself.",
31        "",
32        false,
33    );
34    settings.add_bool(
35        "sign_return_address",
36        "Use pointer authentication instructions to sign function return \
37         addresses; HINT-space instructions using the A key are generated \
38         and simple functions that do not use the stack are not affected \
39         unless overridden by other settings.",
40        "",
41        false,
42    );
43    settings.add_bool(
44        "sign_return_address_with_bkey",
45        "Use the B key with pointer authentication instructions instead of \
46        the default A key; does not have an effect on code generation by \
47        itself. Some platform ABIs may require this, for example.",
48        "",
49        false,
50    );
51    settings.add_bool(
52        "use_bti",
53        "Use Branch Target Identification (FEAT_BTI) instructions.",
54        "",
55        false,
56    );
57
58    TargetIsa::new("arm64", settings.build())
59}