src/compiler/glsl/TODO

   1 - Detect code paths in non-void functions that don't reach a return statement
   2
   3 - Improve handling of constants and their initializers.  Constant initializers
   4   should never generate any code.  This is trival for scalar constants.  It is
   5   also trivial for arrays, matrices, and vectors that are accessed with
   6   constant index values.  For others it is more complicated.  Perhaps these
   7   cases should be silently converted to uniforms?
   8
   9 - Track source locations throughout the IR.  There are currently several
  10   places where we cannot emit line numbers for errors (and currently emit 0:0)
  11   because we've "lost" the line number information.  This is particularly
  12   noticeable at link time.