602 lines
24 KiB
Rust
602 lines
24 KiB
Rust
/// Implements a test on a unary operation using proptest.
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///
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/// Compares the vector operation to the equivalent scalar operation.
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#[macro_export]
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macro_rules! impl_unary_op_test {
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{ $scalar:ty, $trait:ident :: $fn:ident, $scalar_fn:expr } => {
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test_helpers::test_lanes! {
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fn $fn<const LANES: usize>() {
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test_helpers::test_unary_elementwise(
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&<core_simd::Simd<$scalar, LANES> as core::ops::$trait>::$fn,
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&$scalar_fn,
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&|_| true,
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);
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}
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}
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};
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{ $scalar:ty, $trait:ident :: $fn:ident } => {
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impl_unary_op_test! { $scalar, $trait::$fn, <$scalar as core::ops::$trait>::$fn }
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};
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}
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/// Implements a test on a binary operation using proptest.
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///
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/// Compares the vector operation to the equivalent scalar operation.
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#[macro_export]
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macro_rules! impl_binary_op_test {
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{ $scalar:ty, $trait:ident :: $fn:ident, $trait_assign:ident :: $fn_assign:ident, $scalar_fn:expr } => {
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mod $fn {
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use super::*;
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use core_simd::Simd;
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test_helpers::test_lanes! {
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fn normal<const LANES: usize>() {
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test_helpers::test_binary_elementwise(
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&<Simd<$scalar, LANES> as core::ops::$trait>::$fn,
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&$scalar_fn,
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&|_, _| true,
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);
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}
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fn assign<const LANES: usize>() {
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test_helpers::test_binary_elementwise(
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&|mut a, b| { <Simd<$scalar, LANES> as core::ops::$trait_assign>::$fn_assign(&mut a, b); a },
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&$scalar_fn,
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&|_, _| true,
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);
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}
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}
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}
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};
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{ $scalar:ty, $trait:ident :: $fn:ident, $trait_assign:ident :: $fn_assign:ident } => {
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impl_binary_op_test! { $scalar, $trait::$fn, $trait_assign::$fn_assign, <$scalar as core::ops::$trait>::$fn }
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};
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}
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/// Implements a test on a binary operation using proptest.
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///
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/// Like `impl_binary_op_test`, but allows providing a function for rejecting particular inputs
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/// (like the `proptest_assume` macro).
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///
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/// Compares the vector operation to the equivalent scalar operation.
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#[macro_export]
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macro_rules! impl_binary_checked_op_test {
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{ $scalar:ty, $trait:ident :: $fn:ident, $trait_assign:ident :: $fn_assign:ident, $scalar_fn:expr, $check_fn:expr } => {
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mod $fn {
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use super::*;
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use core_simd::Simd;
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test_helpers::test_lanes! {
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fn normal<const LANES: usize>() {
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test_helpers::test_binary_elementwise(
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&<Simd<$scalar, LANES> as core::ops::$trait>::$fn,
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&$scalar_fn,
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&|x, y| x.iter().zip(y.iter()).all(|(x, y)| $check_fn(*x, *y)),
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);
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}
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fn assign<const LANES: usize>() {
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test_helpers::test_binary_elementwise(
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&|mut a, b| { <Simd<$scalar, LANES> as core::ops::$trait_assign>::$fn_assign(&mut a, b); a },
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&$scalar_fn,
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&|x, y| x.iter().zip(y.iter()).all(|(x, y)| $check_fn(*x, *y)),
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)
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}
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}
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}
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};
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{ $scalar:ty, $trait:ident :: $fn:ident, $trait_assign:ident :: $fn_assign:ident, $check_fn:expr } => {
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impl_binary_checked_op_test! { $scalar, $trait::$fn, $trait_assign::$fn_assign, <$scalar as core::ops::$trait>::$fn, $check_fn }
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};
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}
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#[macro_export]
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macro_rules! impl_common_integer_tests {
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{ $vector:ident, $scalar:ident } => {
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test_helpers::test_lanes! {
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fn reduce_sum<const LANES: usize>() {
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test_helpers::test_1(&|x| {
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test_helpers::prop_assert_biteq! (
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$vector::<LANES>::from_array(x).reduce_sum(),
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x.iter().copied().fold(0 as $scalar, $scalar::wrapping_add),
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);
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Ok(())
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});
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}
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fn reduce_product<const LANES: usize>() {
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test_helpers::test_1(&|x| {
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test_helpers::prop_assert_biteq! (
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$vector::<LANES>::from_array(x).reduce_product(),
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x.iter().copied().fold(1 as $scalar, $scalar::wrapping_mul),
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);
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Ok(())
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});
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}
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fn reduce_and<const LANES: usize>() {
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test_helpers::test_1(&|x| {
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test_helpers::prop_assert_biteq! (
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$vector::<LANES>::from_array(x).reduce_and(),
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x.iter().copied().fold(-1i8 as $scalar, <$scalar as core::ops::BitAnd>::bitand),
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);
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Ok(())
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});
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}
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fn reduce_or<const LANES: usize>() {
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test_helpers::test_1(&|x| {
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test_helpers::prop_assert_biteq! (
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$vector::<LANES>::from_array(x).reduce_or(),
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x.iter().copied().fold(0 as $scalar, <$scalar as core::ops::BitOr>::bitor),
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);
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Ok(())
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});
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}
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fn reduce_xor<const LANES: usize>() {
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test_helpers::test_1(&|x| {
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test_helpers::prop_assert_biteq! (
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$vector::<LANES>::from_array(x).reduce_xor(),
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x.iter().copied().fold(0 as $scalar, <$scalar as core::ops::BitXor>::bitxor),
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);
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Ok(())
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});
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}
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fn reduce_max<const LANES: usize>() {
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test_helpers::test_1(&|x| {
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test_helpers::prop_assert_biteq! (
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$vector::<LANES>::from_array(x).reduce_max(),
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x.iter().copied().max().unwrap(),
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);
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Ok(())
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});
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}
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fn reduce_min<const LANES: usize>() {
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test_helpers::test_1(&|x| {
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test_helpers::prop_assert_biteq! (
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$vector::<LANES>::from_array(x).reduce_min(),
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x.iter().copied().min().unwrap(),
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);
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Ok(())
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});
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}
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}
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}
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}
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/// Implement tests for signed integers.
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#[macro_export]
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macro_rules! impl_signed_tests {
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{ $scalar:tt } => {
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mod $scalar {
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type Vector<const LANES: usize> = core_simd::Simd<Scalar, LANES>;
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type Scalar = $scalar;
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impl_common_integer_tests! { Vector, Scalar }
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test_helpers::test_lanes! {
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fn neg<const LANES: usize>() {
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test_helpers::test_unary_elementwise(
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&<Vector::<LANES> as core::ops::Neg>::neg,
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&<Scalar as core::ops::Neg>::neg,
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&|x| !x.contains(&Scalar::MIN),
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);
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}
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fn is_positive<const LANES: usize>() {
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test_helpers::test_unary_mask_elementwise(
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&Vector::<LANES>::is_positive,
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&Scalar::is_positive,
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&|_| true,
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);
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}
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fn is_negative<const LANES: usize>() {
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test_helpers::test_unary_mask_elementwise(
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&Vector::<LANES>::is_negative,
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&Scalar::is_negative,
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&|_| true,
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);
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}
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fn signum<const LANES: usize>() {
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test_helpers::test_unary_elementwise(
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&Vector::<LANES>::signum,
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&Scalar::signum,
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&|_| true,
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)
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}
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fn div_min_may_overflow<const LANES: usize>() {
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let a = Vector::<LANES>::splat(Scalar::MIN);
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let b = Vector::<LANES>::splat(-1);
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assert_eq!(a / b, a);
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}
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fn rem_min_may_overflow<const LANES: usize>() {
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let a = Vector::<LANES>::splat(Scalar::MIN);
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let b = Vector::<LANES>::splat(-1);
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assert_eq!(a % b, Vector::<LANES>::splat(0));
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}
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fn min<const LANES: usize>() {
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let a = Vector::<LANES>::splat(Scalar::MIN);
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let b = Vector::<LANES>::splat(0);
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assert_eq!(a.min(b), a);
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let a = Vector::<LANES>::splat(Scalar::MAX);
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let b = Vector::<LANES>::splat(0);
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assert_eq!(a.min(b), b);
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}
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fn max<const LANES: usize>() {
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let a = Vector::<LANES>::splat(Scalar::MIN);
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let b = Vector::<LANES>::splat(0);
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assert_eq!(a.max(b), b);
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let a = Vector::<LANES>::splat(Scalar::MAX);
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let b = Vector::<LANES>::splat(0);
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assert_eq!(a.max(b), a);
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}
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fn clamp<const LANES: usize>() {
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let min = Vector::<LANES>::splat(Scalar::MIN);
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let max = Vector::<LANES>::splat(Scalar::MAX);
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let zero = Vector::<LANES>::splat(0);
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let one = Vector::<LANES>::splat(1);
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let negone = Vector::<LANES>::splat(-1);
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assert_eq!(zero.clamp(min, max), zero);
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assert_eq!(zero.clamp(min, one), zero);
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assert_eq!(zero.clamp(one, max), one);
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assert_eq!(zero.clamp(min, negone), negone);
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}
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}
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test_helpers::test_lanes_panic! {
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fn div_by_all_zeros_panics<const LANES: usize>() {
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let a = Vector::<LANES>::splat(42);
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let b = Vector::<LANES>::splat(0);
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let _ = a / b;
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}
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fn div_by_one_zero_panics<const LANES: usize>() {
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let a = Vector::<LANES>::splat(42);
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let mut b = Vector::<LANES>::splat(21);
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b[0] = 0 as _;
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let _ = a / b;
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}
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fn rem_zero_panic<const LANES: usize>() {
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let a = Vector::<LANES>::splat(42);
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let b = Vector::<LANES>::splat(0);
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let _ = a % b;
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}
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}
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test_helpers::test_lanes! {
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fn div_neg_one_no_panic<const LANES: usize>() {
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let a = Vector::<LANES>::splat(42);
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let b = Vector::<LANES>::splat(-1);
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let _ = a / b;
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}
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fn rem_neg_one_no_panic<const LANES: usize>() {
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let a = Vector::<LANES>::splat(42);
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let b = Vector::<LANES>::splat(-1);
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let _ = a % b;
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}
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}
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impl_binary_op_test!(Scalar, Add::add, AddAssign::add_assign, Scalar::wrapping_add);
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impl_binary_op_test!(Scalar, Sub::sub, SubAssign::sub_assign, Scalar::wrapping_sub);
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impl_binary_op_test!(Scalar, Mul::mul, MulAssign::mul_assign, Scalar::wrapping_mul);
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// Exclude Div and Rem panicking cases
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impl_binary_checked_op_test!(Scalar, Div::div, DivAssign::div_assign, Scalar::wrapping_div, |x, y| y != 0 && !(x == Scalar::MIN && y == -1));
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impl_binary_checked_op_test!(Scalar, Rem::rem, RemAssign::rem_assign, Scalar::wrapping_rem, |x, y| y != 0 && !(x == Scalar::MIN && y == -1));
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impl_unary_op_test!(Scalar, Not::not);
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impl_binary_op_test!(Scalar, BitAnd::bitand, BitAndAssign::bitand_assign);
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impl_binary_op_test!(Scalar, BitOr::bitor, BitOrAssign::bitor_assign);
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impl_binary_op_test!(Scalar, BitXor::bitxor, BitXorAssign::bitxor_assign);
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}
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}
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}
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/// Implement tests for unsigned integers.
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#[macro_export]
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macro_rules! impl_unsigned_tests {
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{ $scalar:tt } => {
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mod $scalar {
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type Vector<const LANES: usize> = core_simd::Simd<Scalar, LANES>;
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type Scalar = $scalar;
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impl_common_integer_tests! { Vector, Scalar }
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test_helpers::test_lanes_panic! {
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fn rem_zero_panic<const LANES: usize>() {
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let a = Vector::<LANES>::splat(42);
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let b = Vector::<LANES>::splat(0);
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let _ = a % b;
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}
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}
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impl_binary_op_test!(Scalar, Add::add, AddAssign::add_assign, Scalar::wrapping_add);
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impl_binary_op_test!(Scalar, Sub::sub, SubAssign::sub_assign, Scalar::wrapping_sub);
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impl_binary_op_test!(Scalar, Mul::mul, MulAssign::mul_assign, Scalar::wrapping_mul);
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// Exclude Div and Rem panicking cases
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impl_binary_checked_op_test!(Scalar, Div::div, DivAssign::div_assign, Scalar::wrapping_div, |_, y| y != 0);
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impl_binary_checked_op_test!(Scalar, Rem::rem, RemAssign::rem_assign, Scalar::wrapping_rem, |_, y| y != 0);
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impl_unary_op_test!(Scalar, Not::not);
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impl_binary_op_test!(Scalar, BitAnd::bitand, BitAndAssign::bitand_assign);
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impl_binary_op_test!(Scalar, BitOr::bitor, BitOrAssign::bitor_assign);
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impl_binary_op_test!(Scalar, BitXor::bitxor, BitXorAssign::bitxor_assign);
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}
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}
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}
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/// Implement tests for floating point numbers.
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#[macro_export]
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macro_rules! impl_float_tests {
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{ $scalar:tt, $int_scalar:tt } => {
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mod $scalar {
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type Vector<const LANES: usize> = core_simd::Simd<Scalar, LANES>;
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type Scalar = $scalar;
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impl_unary_op_test!(Scalar, Neg::neg);
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impl_binary_op_test!(Scalar, Add::add, AddAssign::add_assign);
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impl_binary_op_test!(Scalar, Sub::sub, SubAssign::sub_assign);
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impl_binary_op_test!(Scalar, Mul::mul, MulAssign::mul_assign);
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impl_binary_op_test!(Scalar, Div::div, DivAssign::div_assign);
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impl_binary_op_test!(Scalar, Rem::rem, RemAssign::rem_assign);
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test_helpers::test_lanes! {
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fn is_sign_positive<const LANES: usize>() {
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test_helpers::test_unary_mask_elementwise(
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&Vector::<LANES>::is_sign_positive,
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&Scalar::is_sign_positive,
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&|_| true,
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);
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}
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fn is_sign_negative<const LANES: usize>() {
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test_helpers::test_unary_mask_elementwise(
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&Vector::<LANES>::is_sign_negative,
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&Scalar::is_sign_negative,
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&|_| true,
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);
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}
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fn is_finite<const LANES: usize>() {
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test_helpers::test_unary_mask_elementwise(
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&Vector::<LANES>::is_finite,
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&Scalar::is_finite,
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&|_| true,
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);
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}
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fn is_infinite<const LANES: usize>() {
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test_helpers::test_unary_mask_elementwise(
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&Vector::<LANES>::is_infinite,
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&Scalar::is_infinite,
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&|_| true,
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);
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}
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fn is_nan<const LANES: usize>() {
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test_helpers::test_unary_mask_elementwise(
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&Vector::<LANES>::is_nan,
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&Scalar::is_nan,
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&|_| true,
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);
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}
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fn is_normal<const LANES: usize>() {
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test_helpers::test_unary_mask_elementwise(
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&Vector::<LANES>::is_normal,
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&Scalar::is_normal,
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&|_| true,
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);
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}
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fn is_subnormal<const LANES: usize>() {
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test_helpers::test_unary_mask_elementwise(
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&Vector::<LANES>::is_subnormal,
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&Scalar::is_subnormal,
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&|_| true,
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);
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}
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fn abs<const LANES: usize>() {
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test_helpers::test_unary_elementwise(
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&Vector::<LANES>::abs,
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&Scalar::abs,
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&|_| true,
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)
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}
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fn recip<const LANES: usize>() {
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test_helpers::test_unary_elementwise(
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&Vector::<LANES>::recip,
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&Scalar::recip,
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&|_| true,
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)
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}
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fn to_degrees<const LANES: usize>() {
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test_helpers::test_unary_elementwise(
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&Vector::<LANES>::to_degrees,
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&Scalar::to_degrees,
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&|_| true,
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)
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}
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fn to_radians<const LANES: usize>() {
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test_helpers::test_unary_elementwise(
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&Vector::<LANES>::to_radians,
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&Scalar::to_radians,
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&|_| true,
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)
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}
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fn signum<const LANES: usize>() {
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test_helpers::test_unary_elementwise(
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&Vector::<LANES>::signum,
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&Scalar::signum,
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&|_| true,
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)
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}
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fn copysign<const LANES: usize>() {
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test_helpers::test_binary_elementwise(
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&Vector::<LANES>::copysign,
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&Scalar::copysign,
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&|_, _| true,
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)
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}
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fn min<const LANES: usize>() {
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// Regular conditions (both values aren't zero)
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test_helpers::test_binary_elementwise(
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&Vector::<LANES>::min,
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&Scalar::min,
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// Reject the case where both values are zero with different signs
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&|a, b| {
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for (a, b) in a.iter().zip(b.iter()) {
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if *a == 0. && *b == 0. && a.signum() != b.signum() {
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return false;
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}
|
|
}
|
|
true
|
|
}
|
|
);
|
|
|
|
// Special case where both values are zero
|
|
let p_zero = Vector::<LANES>::splat(0.);
|
|
let n_zero = Vector::<LANES>::splat(-0.);
|
|
assert!(p_zero.min(n_zero).to_array().iter().all(|x| *x == 0.));
|
|
assert!(n_zero.min(p_zero).to_array().iter().all(|x| *x == 0.));
|
|
}
|
|
|
|
fn max<const LANES: usize>() {
|
|
// Regular conditions (both values aren't zero)
|
|
test_helpers::test_binary_elementwise(
|
|
&Vector::<LANES>::max,
|
|
&Scalar::max,
|
|
// Reject the case where both values are zero with different signs
|
|
&|a, b| {
|
|
for (a, b) in a.iter().zip(b.iter()) {
|
|
if *a == 0. && *b == 0. && a.signum() != b.signum() {
|
|
return false;
|
|
}
|
|
}
|
|
true
|
|
}
|
|
);
|
|
|
|
// Special case where both values are zero
|
|
let p_zero = Vector::<LANES>::splat(0.);
|
|
let n_zero = Vector::<LANES>::splat(-0.);
|
|
assert!(p_zero.max(n_zero).to_array().iter().all(|x| *x == 0.));
|
|
assert!(n_zero.max(p_zero).to_array().iter().all(|x| *x == 0.));
|
|
}
|
|
|
|
fn clamp<const LANES: usize>() {
|
|
test_helpers::test_3(&|value: [Scalar; LANES], mut min: [Scalar; LANES], mut max: [Scalar; LANES]| {
|
|
for (min, max) in min.iter_mut().zip(max.iter_mut()) {
|
|
if max < min {
|
|
core::mem::swap(min, max);
|
|
}
|
|
if min.is_nan() {
|
|
*min = Scalar::NEG_INFINITY;
|
|
}
|
|
if max.is_nan() {
|
|
*max = Scalar::INFINITY;
|
|
}
|
|
}
|
|
|
|
let mut result_scalar = [Scalar::default(); LANES];
|
|
for i in 0..LANES {
|
|
result_scalar[i] = value[i].clamp(min[i], max[i]);
|
|
}
|
|
let result_vector = Vector::from_array(value).clamp(min.into(), max.into()).to_array();
|
|
test_helpers::prop_assert_biteq!(result_scalar, result_vector);
|
|
Ok(())
|
|
})
|
|
}
|
|
|
|
fn reduce_sum<const LANES: usize>() {
|
|
test_helpers::test_1(&|x| {
|
|
test_helpers::prop_assert_biteq! (
|
|
Vector::<LANES>::from_array(x).reduce_sum(),
|
|
x.iter().sum(),
|
|
);
|
|
Ok(())
|
|
});
|
|
}
|
|
|
|
fn reduce_product<const LANES: usize>() {
|
|
test_helpers::test_1(&|x| {
|
|
test_helpers::prop_assert_biteq! (
|
|
Vector::<LANES>::from_array(x).reduce_product(),
|
|
x.iter().product(),
|
|
);
|
|
Ok(())
|
|
});
|
|
}
|
|
|
|
fn reduce_max<const LANES: usize>() {
|
|
test_helpers::test_1(&|x| {
|
|
let vmax = Vector::<LANES>::from_array(x).reduce_max();
|
|
let smax = x.iter().copied().fold(Scalar::NAN, Scalar::max);
|
|
// 0 and -0 are treated the same
|
|
if !(x.contains(&0.) && x.contains(&-0.) && vmax.abs() == 0. && smax.abs() == 0.) {
|
|
test_helpers::prop_assert_biteq!(vmax, smax);
|
|
}
|
|
Ok(())
|
|
});
|
|
}
|
|
|
|
fn reduce_min<const LANES: usize>() {
|
|
test_helpers::test_1(&|x| {
|
|
let vmax = Vector::<LANES>::from_array(x).reduce_min();
|
|
let smax = x.iter().copied().fold(Scalar::NAN, Scalar::min);
|
|
// 0 and -0 are treated the same
|
|
if !(x.contains(&0.) && x.contains(&-0.) && vmax.abs() == 0. && smax.abs() == 0.) {
|
|
test_helpers::prop_assert_biteq!(vmax, smax);
|
|
}
|
|
Ok(())
|
|
});
|
|
}
|
|
}
|
|
|
|
#[cfg(feature = "std")]
|
|
mod std {
|
|
use std_float::StdFloat;
|
|
|
|
use super::*;
|
|
test_helpers::test_lanes! {
|
|
fn sqrt<const LANES: usize>() {
|
|
test_helpers::test_unary_elementwise(
|
|
&Vector::<LANES>::sqrt,
|
|
&Scalar::sqrt,
|
|
&|_| true,
|
|
)
|
|
}
|
|
|
|
fn mul_add<const LANES: usize>() {
|
|
test_helpers::test_ternary_elementwise(
|
|
&Vector::<LANES>::mul_add,
|
|
&Scalar::mul_add,
|
|
&|_, _, _| true,
|
|
)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|