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Add a fuzzy comparison test for f32

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Luca Barbato 2019-05-28 12:09:26 +00:00 • committed by Luca Barbato
parent cce9d50f9b
commit 1f96c3192e
1 changed files with 13 additions and 2 deletions
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15
library/stdarch/crates/core_arch/src/powerpc/altivec.rs
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@ -1774,6 +1774,17 @@ mod tests {
}
macro_rules! test_vec_1 {
{ $name: ident, $fn:ident, f32x4, [$($a:expr),+], ~[$($d:expr),+] } => {
#[simd_test(enable = "altivec")]
unsafe fn $name() {
let a: vector_float = transmute(f32x4::new($($a),+));
let d: vector_float = transmute(f32x4::new($($d),+));
let r = transmute(vec_cmple(vec_abs(vec_sub($fn(a), d)), vec_splats(std::f32::EPSILON)));
let e = m32x4::new(true, true, true, true);
assert_eq!(e, r);
}
};
{ $name: ident, $fn:ident, $ty: ident, [$($a:expr),+], [$($d:expr),+] } => {
test_vec_1! { $name, $fn, $ty -> $ty, [$($a),+], [$($d),+] }
};
@ -1790,8 +1801,8 @@ mod tests {
}
test_vec_1! { test_vec_expte, vec_expte, f32x4,
[0.0, 2.0, 4.0, -1.0],
[1.0, 4.0, 16.0, 0.5]
[0.0, 2.0, 2.0, -1.0],
~[1.0, 4.0, 4.0, 0.5]
}
test_vec_2! { test_vec_cmpgt_i8, vec_cmpgt, i8x16 -> m8x16,