On Tue, 5 Mar 2013, Jakub Jelinek wrote:
> Hi!
>
> cselib (probably among others) isn't prepared to handle arbitrarily
> complex debug insns. The debug insns are usually created from debug stmts
> which shouldn't have unbound complexity, but with TER we can actually end up
> with arbitrarily lar
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
On 03/05/2013 09:30 AM, Jakub Jelinek wrote:
Hi!
cselib (probably among others) isn't prepared to handle arbitrarily
complex debug insns. The debug insns are usually created from debug stmts
which shouldn't have unbound complexity, but with TER we can actually end up
with arbitrarily large debu
Hi!
cselib (probably among others) isn't prepared to handle arbitrarily
complex debug insns. The debug insns are usually created from debug stmts
which shouldn't have unbound complexity, but with TER we can actually end up
with arbitrarily large debug insns.
This patch fixes that up during expan
