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Re: [PATCH, MIPS] Fix build after no_new_pseudos
email@example.com (Richard Kenner) writes:
> > I think we should fix combine to permit splitters to create new
> > pseudos. I don't think it does us any useful service to prohibit
> > them.
> What if the splitter doesn't result in a recognized insn (most don't).
> We could potentially be creating a lot of unneeded pseudos.
I'm not sure I agree. I suspect that most splitters, when they
succeed, do result in recognized insns.
Conversely, some splitters may require a new pseudo, and yet be quite
useful if they can be run during combine.
In any case, this is something we can measure.