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
|
//@ compile-flags: -Cno-prepopulate-passes
#![crate_type = "lib"]
#![feature(repr_simd, core_intrinsics)]
// make sure that codegen emits correctly-aligned loads and stores for repr(packed, simd) types
// the alignment of a load should be no less than T, and no more than the size of the vector type
use std::intrinsics::simd as intrinsics;
#[derive(Copy, Clone)]
#[repr(packed, simd)]
struct f32x3([f32; 3]);
#[derive(Copy, Clone)]
#[repr(packed, simd)]
struct f32x4([f32; 4]);
// CHECK-LABEL: load_f32x3
#[no_mangle]
pub fn load_f32x3(floats: &f32x3) -> f32x3 {
// FIXME: Is a memcpy really the best we can do?
// CHECK: @llvm.memcpy.{{.*}}ptr align 4 {{.*}}ptr align 4
*floats
}
// CHECK-LABEL: load_f32x4
#[no_mangle]
pub fn load_f32x4(floats: &f32x4) -> f32x4 {
// CHECK: load <4 x float>, ptr %{{[a-z0-9_]*}}, align {{4|8|16}}
*floats
}
// CHECK-LABEL: add_f32x3
#[no_mangle]
pub fn add_f32x3(x: f32x3, y: f32x3) -> f32x3 {
// CHECK: load <3 x float>, ptr %{{[a-z0-9_]*}}, align 4
unsafe { intrinsics::simd_add(x, y) }
}
// CHECK-LABEL: add_f32x4
#[no_mangle]
pub fn add_f32x4(x: f32x4, y: f32x4) -> f32x4 {
// CHECK: load <4 x float>, ptr %{{[a-z0-9_]*}}, align {{4|8|16}}
unsafe { intrinsics::simd_add(x, y) }
}
|
