test_add_i32_4()

bool autoresearch::simd_check::test_add_i32_4 ( )

inline

Definition at line 405 of file AutoResearchSimd.h.

                             {
    // Use signed values stored as u32
    uint32_t a[4] = {as_u32(100), as_u32(-100), as_u32(0x7FFFFFFF), as_u32(0)};
    uint32_t b[4] = {as_u32(200), as_u32(-200), as_u32(1), as_u32(0)};
    uint32_t output[4] = {0};
    store_u32_4(output, add_i32_4(load_u32_4(a), load_u32_4(b)));
    if (as_i32(output[0]) != 300) return false;
    if (as_i32(output[1]) != -300) return false;
    // 0x7FFFFFFF + 1 wraps (expected behavior, no saturation)
    if (output[2] != 0x80000000) return false;
    if (as_i32(output[3]) != 0) return false;
    return true;
}

References as_i32(), and as_u32().

Referenced by getTests().

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