[Bug tree-optimization/57660] FAIL: gcc.dg/tree-ssa/forwprop-28.c scan-tree-dump-times forwprop1 "Replaced" 8

law at redhat dot com gcc-bugzilla@gcc.gnu.org
Thu Jun 20 16:03:00 GMT 2013


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57660

--- Comment #2 from Jeffrey A. Law <law at redhat dot com> ---
We've got two choices here.

First is to somehow make the number of replacements we look for be conditional
on the target.  For targets with an appropriate branch cost (such as m68K)
we'll see 2X the number of replacements as x86_64.

The other approach is to disable the test on those targets, much like we do
with vrp87.c.

I'm investigating the former, if I can find a clean way to do that it'd be the
preferred solution.  Otherwise I'll do the latter.



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