------- Additional Comments From wilson at specifixinc dot com 2005-03-25
02:46 -------
Subject: Re: gas should avoid F-unit NOPs (and B-unit
probably, too)
On Thu, 2005-03-24 at 18:22, hjl at lucon dot org wrote:
> ------- Additional Comments From hjl at lucon dot org 2005-03-25 02:22
> -------
> Can we modify the patch to have it a switch to turn it on/off and make it
> on by default? Then, we can just turn it off in the existing testcases and
> add a new one for this.
Such as a -mcpu=itanium1 switch? I suppose that could work.
Or we could try fixing the testsuite to use explicit bundles, so that it
stops changing every time the bundling heuristics change.
Or we could just say to heck with it and regenerate all of the .d files.
Or we could try to make the .d files be bundling independent. Try
looking at some of the ones that Jan Beulich has added. He uses "." to
match bundles when nops are involved, so that it is bundling
independent. See for instance align.d.
However, before we make a decision, I really think that someone should
run the gas testsuite first, and check to see whether we have a problem,
and if so, how big of a problem it is. There is no sense to trying to
write a complicated solution if we only have a simple problem.
--
http://sources.redhat.com/bugzilla/show_bug.cgi?id=803
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