Vectorizer bug with NativeArray<byte> (Test project included)

Unity Engine
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1

Yesterday I was stumbled upon this for two hours straight. At first I thought that it was in my code after I changed my NativeArray mask to byte type, but after triple checking everything and digging around I discovered it is much worse. Basically Job works correctly if it is not [Burst] marked, or if Burst is in debug mode. It also works correctly if I manually inline my function, or change data type back to int, or do a straight cast from pointer:

    [MethodImpl(MethodImplOptions.NoInlining)]
    private static unsafe void ProcessColumnByte(
        byte* solidMap,
        float* uMap,
        float* vMap,
        in int2 simSize,
        int idx,
        int count)
    {
        var       shiftLeft   = -simSize.y;
        var       shiftRight  = simSize.y;
        const int shiftTop    = 1;
        const int shiftBottom = -1;

        for (var j = 1; j < count; j++,
             idx++)
        {
            var div = uMap[idx + shiftRight] + vMap[idx + shiftTop] - vMap[idx] - uMap[idx];
               
            //it fixes this
            //var solidsMap = new float4(*(solidMap + (idx + shiftLeft)), *(solidMap + idx + shiftRight), *(solidMap + idx + shiftBottom), *(solidMap + idx + shiftTop));
            var solidsMap = new float4(solidMap[idx + shiftLeft], solidMap[idx + shiftRight], solidMap[idx + shiftBottom], solidMap[idx + shiftTop]);//basically I guess here it is
            var s         = csum(solidsMap);
            var p         = select(0, -div / s, s > 0);
           
            var vectors = solidsMap * p;
            uMap[idx]              -= vectors.x;
        }
    }

9888072–1427010–VectorizerBug.zip (38.2 KB)