[PATCH] Avoid too complex debug insns during expansion (PR debug/56510)

Jakub Jelinek jakub@redhat.com
Tue Mar 5 22:37:00 GMT 2013


On Tue, Mar 05, 2013 at 02:40:34PM -0700, Jeff Law wrote:
> So it's not that cselib (and possibly others) can't handle these
> complex RTL expressions, it's just unbearably slow.  Right?

They handle it, but with bad compile time complexity, so on some testcases
it might take years or centuries etc.

> Fine with the trivial formatting fix assuming your bootstrap/regtest is OK.

Thanks, bootstraps/regtests finished fine, I've added the two blank lines
and committed.

	Jakub



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