message: Handle 0xFFFFFFFF as a component in OpVectorShuffle
diff: @@ -973,6 +973,14 @@ void ThreadState::StepNext(ShaderDebugState *state, const rdcarray<ThreadState>
  for(uint32_t i = 0; i < shuffle.components.size(); i++)
  {
  uint32_t c = shuffle.components[i];
  +
  + // "A Component literal may also be FFFFFFFF, which means the corresponding result component
  + // has no source and is undefined."
  + // If it has no defined source, we can use 0 safely and know that it's at least going to
  + // index validly
  + if(c == ~0U)
  + c = 0;
  +
  if(c < vec1Cols)
  copyComp(var, i, src1, c);
  else
  