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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
//! test that s390x vector types are passed using `PassMode::Direct`
//! see also https://github.com/rust-lang/rust/issues/135744
//@ add-core-stubs
//@ compile-flags: --target s390x-unknown-linux-gnu -Copt-level=3
//@ needs-llvm-components: systemz
#![crate_type = "rlib"]
#![feature(no_core, asm_experimental_arch)]
#![feature(s390x_target_feature, simd_ffi, intrinsics, repr_simd)]
#![no_core]
extern crate minicore;
use minicore::*;
#[repr(simd)]
struct i8x16([i8; 16]);
#[repr(simd)]
struct i16x8([i16; 8]);
#[repr(simd)]
struct i32x4([i32; 4]);
#[repr(simd)]
struct i64x2([i64; 2]);
#[repr(simd)]
struct f32x4([f32; 4]);
#[repr(simd)]
struct f64x2([f64; 2]);
impl Copy for i8x16 {}
impl Copy for i16x8 {}
impl Copy for i32x4 {}
impl Copy for i64x2 {}
#[rustc_intrinsic]
unsafe fn simd_ge<T, U>(x: T, y: T) -> U;
#[rustc_intrinsic]
unsafe fn simd_select<M, V>(mask: M, a: V, b: V) -> V;
#[inline(always)]
unsafe fn simd_max<T: Copy>(a: T, b: T) -> T {
simd_select(simd_ge::<T, T>(a, b), a, b)
}
// CHECK-LABEL: define <16 x i8> @max_i8x16
// CHECK-SAME: <16 x i8> %a, <16 x i8> %b
// CHECK: call <16 x i8> @llvm.smax.v16i8(<16 x i8> %a, <16 x i8> %b)
#[no_mangle]
#[target_feature(enable = "vector")]
pub unsafe extern "C" fn max_i8x16(a: i8x16, b: i8x16) -> i8x16 {
simd_max(a, b)
}
// CHECK-LABEL: define <8 x i16> @max_i16x8
// CHECK-SAME: <8 x i16> %a, <8 x i16> %b
// CHECK: call <8 x i16> @llvm.smax.v8i16(<8 x i16> %a, <8 x i16> %b)
#[no_mangle]
#[target_feature(enable = "vector")]
pub unsafe extern "C" fn max_i16x8(a: i16x8, b: i16x8) -> i16x8 {
simd_max(a, b)
}
// CHECK-LABEL: define <4 x i32> @max_i32x4
// CHECK-SAME: <4 x i32> %a, <4 x i32> %b
// CHECK: call <4 x i32> @llvm.smax.v4i32(<4 x i32> %a, <4 x i32> %b)
#[no_mangle]
#[target_feature(enable = "vector")]
pub unsafe extern "C" fn max_i32x4(a: i32x4, b: i32x4) -> i32x4 {
simd_max(a, b)
}
// CHECK-LABEL: define <2 x i64> @max_i64x2
// CHECK-SAME: <2 x i64> %a, <2 x i64> %b
// CHECK: call <2 x i64> @llvm.smax.v2i64(<2 x i64> %a, <2 x i64> %b)
#[no_mangle]
#[target_feature(enable = "vector")]
pub unsafe extern "C" fn max_i64x2(a: i64x2, b: i64x2) -> i64x2 {
simd_max(a, b)
}
// CHECK-LABEL: define <4 x float> @choose_f32x4
// CHECK-SAME: <4 x float> %a, <4 x float> %b
#[no_mangle]
#[target_feature(enable = "vector")]
pub unsafe extern "C" fn choose_f32x4(a: f32x4, b: f32x4, c: bool) -> f32x4 {
if c { a } else { b }
}
// CHECK-LABEL: define <2 x double> @choose_f64x2
// CHECK-SAME: <2 x double> %a, <2 x double> %b
#[no_mangle]
#[target_feature(enable = "vector")]
pub unsafe extern "C" fn choose_f64x2(a: f64x2, b: f64x2, c: bool) -> f64x2 {
if c { a } else { b }
}
#[repr(C)]
struct Wrapper<T>(T);
#[no_mangle]
#[inline(never)]
#[target_feature(enable = "vector")]
pub unsafe extern "C" fn max_wrapper_i8x16(a: Wrapper<i8x16>, b: Wrapper<i8x16>) -> Wrapper<i8x16> {
// CHECK-LABEL: max_wrapper_i8x16
// CHECK-SAME: sret([16 x i8])
// CHECK-SAME: <16 x i8>
// CHECK-SAME: <16 x i8>
// CHECK: call <16 x i8> @llvm.smax.v16i8
// CHECK-SAME: <16 x i8>
// CHECK-SAME: <16 x i8>
Wrapper(simd_max(a.0, b.0))
}
#[no_mangle]
#[inline(never)]
#[target_feature(enable = "vector")]
pub unsafe extern "C" fn max_wrapper_i64x2(a: Wrapper<i64x2>, b: Wrapper<i64x2>) -> Wrapper<i64x2> {
// CHECK-LABEL: max_wrapper_i64x2
// CHECK-SAME: sret([16 x i8])
// CHECK-SAME: <16 x i8>
// CHECK-SAME: <16 x i8>
// CHECK: call <2 x i64> @llvm.smax.v2i64
// CHECK-SAME: <2 x i64>
// CHECK-SAME: <2 x i64>
Wrapper(simd_max(a.0, b.0))
}
#[no_mangle]
#[inline(never)]
#[target_feature(enable = "vector")]
pub unsafe extern "C" fn choose_wrapper_f64x2(
a: Wrapper<f64x2>,
b: Wrapper<f64x2>,
c: bool,
) -> Wrapper<f64x2> {
// CHECK-LABEL: choose_wrapper_f64x2
// CHECK-SAME: sret([16 x i8])
// CHECK-SAME: <16 x i8>
// CHECK-SAME: <16 x i8>
Wrapper(choose_f64x2(a.0, b.0, c))
}
// CHECK: declare <2 x i64> @llvm.smax.v2i64(<2 x i64>, <2 x i64>)
|