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avx: add _mm256_div_pd, _mm256_div_ps

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Vincent Barrielle 2017-09-29 16:20:52 +02:00 • committed by Andrew Gallant
parent d23da170d5
commit 44d1343cb0
1 changed files with 37 additions and 0 deletions
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37
library/stdarch/src/x86/avx.rs
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@ -157,6 +157,25 @@ pub unsafe fn _mm256_sub_ps(a: f32x8, b: f32x8) -> f32x8 {
a - b
}
/// Compute the division of each of the 8 packed 32-bit floating-point elements
/// in `a` by the corresponding packed elements in `b`.
#[inline(always)]
#[target_feature = "+avx"]
#[cfg_attr(test, assert_instr(vdivps))]
pub unsafe fn _mm256_div_ps(a: f32x8, b: f32x8) -> f32x8 {
a / b
}
/// Compute the division of each of the 4 packed 64-bit floating-point elements
/// in `a` by the corresponding packed elements in `b`.
#[inline(always)]
#[target_feature = "+avx"]
#[cfg_attr(test, assert_instr(vdivpd))]
pub unsafe fn _mm256_div_pd(a: f64x4, b: f64x4) -> f64x4 {
a / b
}
/// Round packed double-precision (64-bit) floating point elements in `a`
/// according to the flag `b`. The value of `b` may be as follows:
///
@ -501,4 +520,22 @@ mod tests {
let e = f32x8::new(2.0, 3.0, 4.0, 5.0, 2.0, 3.0, 4.0, 5.0);
assert_eq!(r, e);
}
#[simd_test = "avx"]
unsafe fn _mm256_div_ps() {
let a = f32x8::new(4.0, 9.0, 16.0, 25.0, 4.0, 9.0, 16.0, 25.0);
let b = f32x8::new(4.0, 3.0, 2.0, 5.0, 8.0, 9.0, 64.0, 50.0);
let r = avx::_mm256_div_ps(a, b);
let e = f32x8::new(1.0, 3.0, 8.0, 5.0, 0.5, 1.0, 0.25, 0.5);
assert_eq!(r, e);
}
#[simd_test = "avx"]
unsafe fn _mm256_div_pd() {
let a = f64x4::new(4.0, 9.0, 16.0, 25.0);
let b = f64x4::new(4.0, 3.0, 2.0, 5.0);
let r = avx::_mm256_div_pd(a, b);
let e = f64x4::new(1.0, 3.0, 8.0, 5.0);
assert_eq!(r, e);
}
}