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Re: [PATCH][TUPLES] Two simple bug fixes.
Sorry, I was wrong in my previous reply. i.ptr->stmt, not i.ptr is
NULL for an empty gimple_seq (I probably should go to bed by now :)).
Still, we need to special case. I remember seeing a comment about
valid gsi with NULL bb when it points outside of any basic blocks.
However, I cannot find the relevant comment. (Diego, did you change
the API doc or did we ever allow a gsi with no bb?).
-Doug