rust/tests/run-pass/portable-simd.rs
2022-03-14 09:53:49 -04:00

304 lines
12 KiB
Rust

#![feature(portable_simd, platform_intrinsics)]
use std::simd::*;
fn simd_ops_f32() {
let a = f32x4::splat(10.0);
let b = f32x4::from_array([1.0, 2.0, 3.0, -4.0]);
assert_eq!(-b, f32x4::from_array([-1.0, -2.0, -3.0, 4.0]));
assert_eq!(a + b, f32x4::from_array([11.0, 12.0, 13.0, 6.0]));
assert_eq!(a - b, f32x4::from_array([9.0, 8.0, 7.0, 14.0]));
assert_eq!(a * b, f32x4::from_array([10.0, 20.0, 30.0, -40.0]));
assert_eq!(b / a, f32x4::from_array([0.1, 0.2, 0.3, -0.4]));
assert_eq!(a / f32x4::splat(2.0), f32x4::splat(5.0));
assert_eq!(a % b, f32x4::from_array([0.0, 0.0, 1.0, 2.0]));
assert_eq!(b.abs(), f32x4::from_array([1.0, 2.0, 3.0, 4.0]));
assert_eq!(a.max(b * f32x4::splat(4.0)), f32x4::from_array([10.0, 10.0, 12.0, 10.0]));
assert_eq!(a.min(b * f32x4::splat(4.0)), f32x4::from_array([4.0, 8.0, 10.0, -16.0]));
assert_eq!(a.lanes_eq(f32x4::splat(5.0) * b), Mask::from_array([false, true, false, false]));
assert_eq!(a.lanes_ne(f32x4::splat(5.0) * b), Mask::from_array([true, false, true, true]));
assert_eq!(a.lanes_le(f32x4::splat(5.0) * b), Mask::from_array([false, true, true, false]));
assert_eq!(a.lanes_lt(f32x4::splat(5.0) * b), Mask::from_array([false, false, true, false]));
assert_eq!(a.lanes_ge(f32x4::splat(5.0) * b), Mask::from_array([true, true, false, true]));
assert_eq!(a.lanes_gt(f32x4::splat(5.0) * b), Mask::from_array([true, false, false, true]));
assert_eq!(a.reduce_sum(), 40.0);
assert_eq!(b.reduce_sum(), 2.0);
assert_eq!(a.reduce_product(), 100.0 * 100.0);
assert_eq!(b.reduce_product(), -24.0);
assert_eq!(a.reduce_max(), 10.0);
assert_eq!(b.reduce_max(), 3.0);
assert_eq!(a.reduce_min(), 10.0);
assert_eq!(b.reduce_min(), -4.0);
assert_eq!(
f32x2::from_array([0.0, f32::NAN]).max(f32x2::from_array([f32::NAN, 0.0])),
f32x2::from_array([0.0, 0.0])
);
assert_eq!(f32x2::from_array([0.0, f32::NAN]).reduce_max(), 0.0);
assert_eq!(f32x2::from_array([f32::NAN, 0.0]).reduce_max(), 0.0);
assert_eq!(
f32x2::from_array([0.0, f32::NAN]).min(f32x2::from_array([f32::NAN, 0.0])),
f32x2::from_array([0.0, 0.0])
);
assert_eq!(f32x2::from_array([0.0, f32::NAN]).reduce_min(), 0.0);
assert_eq!(f32x2::from_array([f32::NAN, 0.0]).reduce_min(), 0.0);
}
fn simd_ops_f64() {
let a = f64x4::splat(10.0);
let b = f64x4::from_array([1.0, 2.0, 3.0, -4.0]);
assert_eq!(-b, f64x4::from_array([-1.0, -2.0, -3.0, 4.0]));
assert_eq!(a + b, f64x4::from_array([11.0, 12.0, 13.0, 6.0]));
assert_eq!(a - b, f64x4::from_array([9.0, 8.0, 7.0, 14.0]));
assert_eq!(a * b, f64x4::from_array([10.0, 20.0, 30.0, -40.0]));
assert_eq!(b / a, f64x4::from_array([0.1, 0.2, 0.3, -0.4]));
assert_eq!(a / f64x4::splat(2.0), f64x4::splat(5.0));
assert_eq!(a % b, f64x4::from_array([0.0, 0.0, 1.0, 2.0]));
assert_eq!(b.abs(), f64x4::from_array([1.0, 2.0, 3.0, 4.0]));
assert_eq!(a.max(b * f64x4::splat(4.0)), f64x4::from_array([10.0, 10.0, 12.0, 10.0]));
assert_eq!(a.min(b * f64x4::splat(4.0)), f64x4::from_array([4.0, 8.0, 10.0, -16.0]));
assert_eq!(a.lanes_eq(f64x4::splat(5.0) * b), Mask::from_array([false, true, false, false]));
assert_eq!(a.lanes_ne(f64x4::splat(5.0) * b), Mask::from_array([true, false, true, true]));
assert_eq!(a.lanes_le(f64x4::splat(5.0) * b), Mask::from_array([false, true, true, false]));
assert_eq!(a.lanes_lt(f64x4::splat(5.0) * b), Mask::from_array([false, false, true, false]));
assert_eq!(a.lanes_ge(f64x4::splat(5.0) * b), Mask::from_array([true, true, false, true]));
assert_eq!(a.lanes_gt(f64x4::splat(5.0) * b), Mask::from_array([true, false, false, true]));
assert_eq!(a.reduce_sum(), 40.0);
assert_eq!(b.reduce_sum(), 2.0);
assert_eq!(a.reduce_product(), 100.0 * 100.0);
assert_eq!(b.reduce_product(), -24.0);
assert_eq!(a.reduce_max(), 10.0);
assert_eq!(b.reduce_max(), 3.0);
assert_eq!(a.reduce_min(), 10.0);
assert_eq!(b.reduce_min(), -4.0);
assert_eq!(
f64x2::from_array([0.0, f64::NAN]).max(f64x2::from_array([f64::NAN, 0.0])),
f64x2::from_array([0.0, 0.0])
);
assert_eq!(f64x2::from_array([0.0, f64::NAN]).reduce_max(), 0.0);
assert_eq!(f64x2::from_array([f64::NAN, 0.0]).reduce_max(), 0.0);
assert_eq!(
f64x2::from_array([0.0, f64::NAN]).min(f64x2::from_array([f64::NAN, 0.0])),
f64x2::from_array([0.0, 0.0])
);
assert_eq!(f64x2::from_array([0.0, f64::NAN]).reduce_min(), 0.0);
assert_eq!(f64x2::from_array([f64::NAN, 0.0]).reduce_min(), 0.0);
}
fn simd_ops_i32() {
let a = i32x4::splat(10);
let b = i32x4::from_array([1, 2, 3, -4]);
assert_eq!(-b, i32x4::from_array([-1, -2, -3, 4]));
assert_eq!(a + b, i32x4::from_array([11, 12, 13, 6]));
assert_eq!(a - b, i32x4::from_array([9, 8, 7, 14]));
assert_eq!(a * b, i32x4::from_array([10, 20, 30, -40]));
assert_eq!(a / b, i32x4::from_array([10, 5, 3, -2]));
assert_eq!(a / i32x4::splat(2), i32x4::splat(5));
assert_eq!(i32x2::splat(i32::MIN) / i32x2::splat(-1), i32x2::splat(i32::MIN));
assert_eq!(a % b, i32x4::from_array([0, 0, 1, 2]));
assert_eq!(i32x2::splat(i32::MIN) % i32x2::splat(-1), i32x2::splat(0));
assert_eq!(b.abs(), i32x4::from_array([1, 2, 3, 4]));
assert_eq!(a.max(b * i32x4::splat(4)), i32x4::from_array([10, 10, 12, 10]));
assert_eq!(a.min(b * i32x4::splat(4)), i32x4::from_array([4, 8, 10, -16]));
assert_eq!(
i8x4::from_array([i8::MAX, -23, 23, i8::MIN]).saturating_add(i8x4::from_array([1, i8::MIN, i8::MAX, 28])),
i8x4::from_array([i8::MAX, i8::MIN, i8::MAX, -100])
);
assert_eq!(
i8x4::from_array([i8::MAX, -28, 27, 42]).saturating_sub(i8x4::from_array([1, i8::MAX, i8::MAX, -80])),
i8x4::from_array([126, i8::MIN, -100, 122])
);
assert_eq!(
u8x4::from_array([u8::MAX, 0, 23, 42]).saturating_add(u8x4::from_array([1, 1, u8::MAX, 200])),
u8x4::from_array([u8::MAX, 1, u8::MAX, 242])
);
assert_eq!(
u8x4::from_array([u8::MAX, 0, 23, 42]).saturating_sub(u8x4::from_array([1, 1, u8::MAX, 200])),
u8x4::from_array([254, 0, 0, 0])
);
assert_eq!(!b, i32x4::from_array([!1, !2, !3, !-4]));
assert_eq!(b << i32x4::splat(2), i32x4::from_array([4, 8, 12, -16]));
assert_eq!(b >> i32x4::splat(1), i32x4::from_array([0, 1, 1, -2]));
assert_eq!(b & i32x4::splat(2), i32x4::from_array([0, 2, 2, 0]));
assert_eq!(b | i32x4::splat(2), i32x4::from_array([3, 2, 3, -2]));
assert_eq!(b ^ i32x4::splat(2), i32x4::from_array([3, 0, 1, -2]));
assert_eq!(a.lanes_eq(i32x4::splat(5) * b), Mask::from_array([false, true, false, false]));
assert_eq!(a.lanes_ne(i32x4::splat(5) * b), Mask::from_array([true, false, true, true]));
assert_eq!(a.lanes_le(i32x4::splat(5) * b), Mask::from_array([false, true, true, false]));
assert_eq!(a.lanes_lt(i32x4::splat(5) * b), Mask::from_array([false, false, true, false]));
assert_eq!(a.lanes_ge(i32x4::splat(5) * b), Mask::from_array([true, true, false, true]));
assert_eq!(a.lanes_gt(i32x4::splat(5) * b), Mask::from_array([true, false, false, true]));
assert_eq!(a.reduce_sum(), 40);
assert_eq!(b.reduce_sum(), 2);
assert_eq!(a.reduce_product(), 100 * 100);
assert_eq!(b.reduce_product(), -24);
assert_eq!(a.reduce_max(), 10);
assert_eq!(b.reduce_max(), 3);
assert_eq!(a.reduce_min(), 10);
assert_eq!(b.reduce_min(), -4);
assert_eq!(a.reduce_and(), 10);
assert_eq!(b.reduce_and(), 0);
assert_eq!(a.reduce_or(), 10);
assert_eq!(b.reduce_or(), -1);
assert_eq!(a.reduce_xor(), 0);
assert_eq!(b.reduce_xor(), -4);
}
fn simd_mask() {
let intmask = Mask::from_int(i32x4::from_array([0, -1, 0, 0]));
assert_eq!(intmask, Mask::from_array([false, true, false, false]));
assert_eq!(intmask.to_array(), [false, true, false, false]);
}
fn simd_cast() {
// between integer types
assert_eq!(i32x4::from_array([1, 2, 3, -4]), i16x4::from_array([1, 2, 3, -4]).cast());
assert_eq!(i16x4::from_array([1, 2, 3, -4]), i32x4::from_array([1, 2, 3, -4]).cast());
assert_eq!(i32x4::from_array([1, -1, 3, 4]), u64x4::from_array([1, u64::MAX, 3, 4]).cast());
// float -> int
assert_eq!(
i8x4::from_array([127, -128, 127, -128]),
f32x4::from_array([127.99, -128.99, 999.0, -999.0]).cast()
);
assert_eq!(
i32x4::from_array([0, 1, -1, 2147483520]),
f32x4::from_array([
-0.0,
/*0x1.19999ap+0*/ f32::from_bits(0x3f8ccccd),
/*-0x1.19999ap+0*/ f32::from_bits(0xbf8ccccd),
2147483520.0
])
.cast()
);
assert_eq!(
i32x8::from_array([i32::MAX, i32::MIN, i32::MAX, i32::MIN, i32::MAX, i32::MIN, 0, 0]),
f32x8::from_array([
2147483648.0f32,
-2147483904.0f32,
f32::MAX,
f32::MIN,
f32::INFINITY,
f32::NEG_INFINITY,
f32::NAN,
-f32::NAN,
])
.cast()
);
// int -> float
assert_eq!(
f32x4::from_array([
-2147483648.0,
/*0x1.26580cp+30*/ f32::from_bits(0x4e932c06),
16777220.0,
-16777220.0,
]),
i32x4::from_array([-2147483647i32, 1234567890i32, 16777219i32, -16777219i32]).cast()
);
// float -> float
assert_eq!(
f32x4::from_array([f32::INFINITY, f32::INFINITY, f32::NEG_INFINITY, f32::NEG_INFINITY]),
f64x4::from_array([f64::MAX, f64::INFINITY, f64::MIN, f64::NEG_INFINITY]).cast()
);
// unchecked casts
unsafe {
assert_eq!(
i32x4::from_array([0, 1, -1, 2147483520]),
f32x4::from_array([
-0.0,
/*0x1.19999ap+0*/ f32::from_bits(0x3f8ccccd),
/*-0x1.19999ap+0*/ f32::from_bits(0xbf8ccccd),
2147483520.0
])
.to_int_unchecked()
);
assert_eq!(
u64x4::from_array([0, 10000000000000000, u64::MAX - 2047, 9223372036854775808]),
f64x4::from_array([
-0.99999999999,
1e16,
(u64::MAX - 1024) as f64,
9223372036854775808.0
])
.to_int_unchecked()
);
}
}
fn simd_swizzle() {
use Which::*;
let a = f32x4::splat(10.0);
let b = f32x4::from_array([1.0, 2.0, 3.0, -4.0]);
assert_eq!(simd_swizzle!(b, [3, 0, 0, 2]), f32x4::from_array([-4.0, 1.0, 1.0, 3.0]));
assert_eq!(simd_swizzle!(b, [1, 2]), f32x2::from_array([2.0, 3.0]));
assert_eq!(simd_swizzle!(b, a, [First(3), Second(0)]), f32x2::from_array([-4.0, 10.0]));
}
fn simd_gather_scatter() {
let mut vec: Vec<i16> = vec![10, 11, 12, 13, 14, 15, 16, 17, 18];
let idxs = Simd::from_array([9, 3, 0, 17]);
let result = Simd::gather_or_default(&vec, idxs); // Note the lane that is out-of-bounds.
assert_eq!(result, Simd::from_array([0, 13, 10, 0]));
let idxs = Simd::from_array([9, 3, 0, 0]);
Simd::from_array([-27, 82, -41, 124]).scatter(&mut vec, idxs);
assert_eq!(vec, vec![124, 11, 12, 82, 14, 15, 16, 17, 18]);
}
fn simd_intrinsics() {
extern "platform-intrinsic" {
fn simd_eq<T, U>(x: T, y: T) -> U;
fn simd_reduce_any<T>(x: T) -> bool;
fn simd_reduce_all<T>(x: T) -> bool;
fn simd_select<M, T>(m: M, yes: T, no: T) -> T;
}
unsafe {
// Make sure simd_eq returns all-1 for `true`
let a = i32x4::splat(10);
let b = i32x4::from_array([1, 2, 10, 4]);
let c: i32x4 = simd_eq(a, b);
assert_eq!(c, i32x4::from_array([0, 0, -1, 0]));
assert!(!simd_reduce_any(i32x4::splat(0)));
assert!(simd_reduce_any(i32x4::splat(-1)));
assert!(simd_reduce_any(i32x2::from_array([0, -1])));
assert!(!simd_reduce_all(i32x4::splat(0)));
assert!(simd_reduce_all(i32x4::splat(-1)));
assert!(!simd_reduce_all(i32x2::from_array([0, -1])));
assert_eq!(
simd_select(i8x4::from_array([0, -1, -1, 0]), a, b),
i32x4::from_array([1, 10, 10, 4])
);
assert_eq!(
simd_select(i8x4::from_array([0, -1, -1, 0]), b, a),
i32x4::from_array([10, 2, 10, 10])
);
}
}
fn main() {
simd_mask();
simd_ops_f32();
simd_ops_f64();
simd_ops_i32();
simd_cast();
simd_swizzle();
simd_gather_scatter();
simd_intrinsics();
}