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Thanks for the explanation. I somehow thought that every insn spit out by a define_insn was automatically turned into a parallel.
That's true, the template of a define_insn is automatically wrapped up in a PARALLEL. But your addsi3 is a define_expand and this works differently.
Oh, OK. Thanks. So in case of a define_expand I have to manually pack the multiple insns into a parallel, if I want them to stick together, right?
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