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Improve _mm_round_ss/_mm_round_sd tests

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* Do not use deprecated CSR access functions
* Test different rounding modes
This commit is contained in:
Eduardo Sánchez Muñoz 2023-10-16 19:31:51 +02:00 • committed by Amanieu d'Antras
parent 4f52b00597
commit 8b88fb87b7
1 changed files with 38 additions and 10 deletions
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48
library/stdarch/crates/core_arch/src/x86/sse41.rs
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@ -1689,30 +1689,58 @@ mod tests {
assert_eq_m128(r, e);
}
#[allow(deprecated)] // FIXME: This test uses deprecated CSR access functions
#[simd_test(enable = "sse4.1")]
unsafe fn test_mm_round_sd() {
let a = _mm_setr_pd(1.5, 3.5);
let b = _mm_setr_pd(-2.5, -4.5);
let old_mode = _MM_GET_ROUNDING_MODE();
_MM_SET_ROUNDING_MODE(_MM_ROUND_TOWARD_ZERO);
let r = _mm_round_sd::<_MM_FROUND_CUR_DIRECTION>(a, b);
_MM_SET_ROUNDING_MODE(old_mode);
let r = _mm_round_sd::<_MM_FROUND_TO_NEAREST_INT>(a, b);
let e = _mm_setr_pd(-2.0, 3.5);
assert_eq_m128d(r, e);
let a = _mm_setr_pd(1.5, 3.5);
let b = _mm_setr_pd(-2.5, -4.5);
let r = _mm_round_sd::<_MM_FROUND_TO_NEG_INF>(a, b);
let e = _mm_setr_pd(-3.0, 3.5);
assert_eq_m128d(r, e);
let a = _mm_setr_pd(1.5, 3.5);
let b = _mm_setr_pd(-2.5, -4.5);
let r = _mm_round_sd::<_MM_FROUND_TO_POS_INF>(a, b);
let e = _mm_setr_pd(-2.0, 3.5);
assert_eq_m128d(r, e);
let a = _mm_setr_pd(1.5, 3.5);
let b = _mm_setr_pd(-2.5, -4.5);
let r = _mm_round_sd::<_MM_FROUND_TO_ZERO>(a, b);
let e = _mm_setr_pd(-2.0, 3.5);
assert_eq_m128d(r, e);
}
#[allow(deprecated)] // FIXME: This test uses deprecated CSR access functions
#[simd_test(enable = "sse4.1")]
unsafe fn test_mm_round_ss() {
let a = _mm_setr_ps(1.5, 3.5, 7.5, 15.5);
let b = _mm_setr_ps(-1.75, -4.5, -8.5, -16.5);
let old_mode = _MM_GET_ROUNDING_MODE();
_MM_SET_ROUNDING_MODE(_MM_ROUND_NEAREST);
let r = _mm_round_ss::<_MM_FROUND_CUR_DIRECTION>(a, b);
_MM_SET_ROUNDING_MODE(old_mode);
let r = _mm_round_ss::<_MM_FROUND_TO_NEAREST_INT>(a, b);
let e = _mm_setr_ps(-2.0, 3.5, 7.5, 15.5);
assert_eq_m128(r, e);
let a = _mm_setr_ps(1.5, 3.5, 7.5, 15.5);
let b = _mm_setr_ps(-1.75, -4.5, -8.5, -16.5);
let r = _mm_round_ss::<_MM_FROUND_TO_NEG_INF>(a, b);
let e = _mm_setr_ps(-2.0, 3.5, 7.5, 15.5);
assert_eq_m128(r, e);
let a = _mm_setr_ps(1.5, 3.5, 7.5, 15.5);
let b = _mm_setr_ps(-1.75, -4.5, -8.5, -16.5);
let r = _mm_round_ss::<_MM_FROUND_TO_POS_INF>(a, b);
let e = _mm_setr_ps(-1.0, 3.5, 7.5, 15.5);
assert_eq_m128(r, e);
let a = _mm_setr_ps(1.5, 3.5, 7.5, 15.5);
let b = _mm_setr_ps(-1.75, -4.5, -8.5, -16.5);
let r = _mm_round_ss::<_MM_FROUND_TO_ZERO>(a, b);
let e = _mm_setr_ps(-1.0, 3.5, 7.5, 15.5);
assert_eq_m128(r, e);
}
#[simd_test(enable = "sse4.1")]