test_crossval_float_ops()

bool autoresearch::simd_check::test_crossval_float_ops ( )

inline

Definition at line 1011 of file AutoResearchSimd.h.

                                      {
    float a[4] = {-1.5f, 0.0f, 3.14159f, 1e10f};
    float b[4] = {2.5f, -0.0f, -2.71828f, 1e-10f};
    float out[4];
    // Test add
    store_f32_4(out, add_f32_4(load_f32_4(a), load_f32_4(b)));
    for (int i = 0; i < 4; i++) {
        float diff = out[i] - (a[i] + b[i]);
        if (diff < -0.001f || diff > 0.001f) return false;
    }
    // Test sub
    store_f32_4(out, sub_f32_4(load_f32_4(a), load_f32_4(b)));
    for (int i = 0; i < 4; i++) {
        float diff = out[i] - (a[i] - b[i]);
        if (diff < -0.001f || diff > 0.001f) return false;
    }
    // Test mul
    store_f32_4(out, mul_f32_4(load_f32_4(a), load_f32_4(b)));
    for (int i = 0; i < 4; i++) {
        float diff = out[i] - (a[i] * b[i]);
        if (diff < -1.0f && diff > 1.0f) return false;  // large values need loose tolerance
    }
    return true;
}

Referenced by getTests().

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