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1 | // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
11 | // ensures that public symbols are not removed completely | |
12 | #![crate_type = "lib"] | |
13 | // we can compile to a variety of platforms, because we don't need | |
14 | // cross-compiled standard libraries. | |
cc61c64b | 15 | #![feature(no_core, optin_builtin_traits)] |
e9174d1e | 16 | #![no_core] |
85aaf69f | 17 | |
e9174d1e | 18 | #![feature(repr_simd, simd_ffi, link_llvm_intrinsics, lang_items)] |
85aaf69f SL |
19 | |
20 | ||
21 | #[repr(C)] | |
22 | #[derive(Copy)] | |
e9174d1e | 23 | #[repr(simd)] |
85aaf69f SL |
24 | pub struct f32x4(f32, f32, f32, f32); |
25 | ||
26 | ||
27 | extern { | |
28 | #[link_name = "llvm.sqrt.v4f32"] | |
29 | fn vsqrt(x: f32x4) -> f32x4; | |
30 | } | |
31 | ||
32 | pub fn foo(x: f32x4) -> f32x4 { | |
33 | unsafe {vsqrt(x)} | |
34 | } | |
35 | ||
36 | #[repr(C)] | |
37 | #[derive(Copy)] | |
e9174d1e | 38 | #[repr(simd)] |
85aaf69f SL |
39 | pub struct i32x4(i32, i32, i32, i32); |
40 | ||
41 | ||
42 | extern { | |
43 | // _mm_sll_epi32 | |
44 | #[cfg(any(target_arch = "x86", | |
45 | target_arch = "x86-64"))] | |
46 | #[link_name = "llvm.x86.sse2.psll.d"] | |
47 | fn integer(a: i32x4, b: i32x4) -> i32x4; | |
48 | ||
49 | // vmaxq_s32 | |
9cc50fc6 | 50 | #[cfg(target_arch = "arm")] |
85aaf69f SL |
51 | #[link_name = "llvm.arm.neon.vmaxs.v4i32"] |
52 | fn integer(a: i32x4, b: i32x4) -> i32x4; | |
53 | // vmaxq_s32 | |
9cc50fc6 | 54 | #[cfg(target_arch = "aarch64")] |
85aaf69f SL |
55 | #[link_name = "llvm.aarch64.neon.maxs.v4i32"] |
56 | fn integer(a: i32x4, b: i32x4) -> i32x4; | |
57 | ||
58 | // just some substitute foreign symbol, not an LLVM intrinsic; so | |
59 | // we still get type checking, but not as detailed as (ab)using | |
60 | // LLVM. | |
61 | #[cfg(not(any(target_arch = "x86", | |
62 | target_arch = "x86-64", | |
63 | target_arch = "arm", | |
64 | target_arch = "aarch64")))] | |
65 | fn integer(a: i32x4, b: i32x4) -> i32x4; | |
66 | } | |
67 | ||
68 | pub fn bar(a: i32x4, b: i32x4) -> i32x4 { | |
69 | unsafe {integer(a, b)} | |
70 | } | |
71 | ||
72 | #[lang = "sized"] | |
9346a6ac | 73 | pub trait Sized { } |
85aaf69f SL |
74 | |
75 | #[lang = "copy"] | |
9346a6ac | 76 | pub trait Copy { } |
85aaf69f | 77 | |
e9174d1e SL |
78 | pub mod marker { |
79 | pub use Copy; | |
85aaf69f | 80 | } |
cc61c64b XL |
81 | |
82 | #[lang = "freeze"] | |
83 | trait Freeze {} | |
abe05a73 | 84 | #[allow(auto_impl)] |
cc61c64b | 85 | impl Freeze for .. {} |