Re: Selective scheduling pass - middle end changes [1/1]

[Ian Lance Taylor <iant@google.com>]

Andrey Belevantsev <abel@ispras.ru> writes:

> If you're uncomfortable with the idea of the hook, I can invent
> something along the lines of searching the new jumps in the code and
> passing them to the initialization routines.  This would effectively
> find insns given their UIDs and the knowledge that they has got
> created somewhere near the given point in the CFG.  I think this will
> not happen too often to have significant effects on compile time.  The
> hook seemed to be just the simpler way of doing this.

Well, I'm uncomfortable with the idea of the hook.  I wouldn't
necessarily mind a complete hook interface.  But the one you've
implemented seems sort of ad hoc and easy to get wrong.  We don't
currently have any way for a pass to clearly track every change to the
RTL insn stream.  If we need that, I think we should do it for real.

Ian