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//@ compile-flags: -C opt-level=3 -Z merge-functions=disabled
//@ only-x86_64
#![crate_type = "lib"]
// CHECK-LABEL: @auto_vectorize_direct
#[no_mangle]
pub fn auto_vectorize_direct(a: [f32; 4], b: [f32; 4]) -> [f32; 4] {
// CHECK: load <4 x float>
// CHECK: load <4 x float>
// CHECK: fadd <4 x float>
// CHECK: store <4 x float>
[
a[0] + b[0],
a[1] + b[1],
a[2] + b[2],
a[3] + b[3],
]
}
// CHECK-LABEL: @auto_vectorize_loop
#[no_mangle]
pub fn auto_vectorize_loop(a: [f32; 4], b: [f32; 4]) -> [f32; 4] {
// CHECK: load <4 x float>
// CHECK: load <4 x float>
// CHECK: fadd <4 x float>
// CHECK: store <4 x float>
let mut c = [0.0; 4];
for i in 0..4 {
c[i] = a[i] + b[i];
}
c
}
// CHECK-LABEL: @auto_vectorize_array_from_fn
#[no_mangle]
pub fn auto_vectorize_array_from_fn(a: [f32; 4], b: [f32; 4]) -> [f32; 4] {
// CHECK: load <4 x float>
// CHECK: load <4 x float>
// CHECK: fadd <4 x float>
// CHECK: store <4 x float>
std::array::from_fn(|i| a[i] + b[i])
}
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