This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH 4.8] PR66306 Fix reload problem with commutative operands
- From: Andreas Krebbel <krebbel at linux dot vnet dot ibm dot com>
- To: Ulrich Weigand <uweigand at de dot ibm dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Thu, 18 Jun 2015 09:05:44 +0200
- Subject: Re: [PATCH 4.8] PR66306 Fix reload problem with commutative operands
- Authentication-results: sourceware.org; auth=none
- References: <20150616174005 dot D222EB8B at oc7340732750 dot ibm dot com>
On 06/16/2015 07:40 PM, Ulrich Weigand wrote:
> However, I'm not clear why this should be a 4.8 only patch ... the
> same problem seems to be still there on mainline, right?
Yes. But 4.8 appears to be the last where reload was really stable on these targets. When disabling
LRA on mainline x86_64 and s390x didn't even bootstrap (I'll have a look at the s390 issue). I've
got results for PPC64. There were no regressions (apart from two libgo tests which appear to be racy
and fail also without the patch from time to time: "runtime" and "time").
Bye,
-Andreas-