Hello, I'm writing a Simple LTO pass. I have placed my optimization routine under execute() hook. In my optimization routine, I want to delete an instruction for which I have the gimple_stmt_iterator. If I call gsi_remove(gsi, true), it causes a crash in remove_stmt_from_en_lp_fn() where it is expecting cfun and cfun is NULL.
If I call gsi_remove(gsi, false), it goes through fine but at final link stage it shows undefined reference to a certain function. It looks like the entire function vanished. And the instruction I tried to delete was not even a part of that function. Do I need to call update_ssa() after I delete the instruction using gsi_remove(gsi, false)? Is there a simple manner in which I can delete the instruction without having to go through writing the full blown LTO pass with serializers/deserializers and the like? Thanks Shubham
