message: Test that UAV reads in shader debugging read data prior to event
diff: @@ -657,6 +657,19 @@ float4 main(v2f IN) : SV_Target0
  unbounduav2[int2(0, 1)] = 1.234f;
  return unbounduav2[int2(0, 1)].xxxx;
  }
  + if(IN.tri == 78)
  + {
  + // use this to ensure the compiler doesn't know we're using fixed locations
  + uint z = intval - IN.tri - 7;
  + uint z2 = uint(zero);
  +
  + // read first. This should be zero
  + float read_val = asfloat(byterwtest.Load(z2+100).x);
  +
  + byterwtest.Store(z+100, asuint(1.2345f));
  +
  + return read_val;
  + }
  return float4(0.4f, 0.4f, 0.4f, 0.4f);
  }
  