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[Bug target/59305] [4.9 Regression] gcc.dg/atomic/c11-atomic-exec-5.c fails with WARNING: program timed out on x86_64-apple-darwin13
- From: "ro at CeBiTec dot Uni-Bielefeld.DE" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 05 Feb 2014 14:12:26 +0000
- Subject: [Bug target/59305] [4.9 Regression] gcc.dg/atomic/c11-atomic-exec-5.c fails with WARNING: program timed out on x86_64-apple-darwin13
- Auto-submitted: auto-generated
- References: <bug-59305-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59305
--- Comment #11 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
> --- Comment #10 from Iain Sandoe <iains at gcc dot gnu.org> ---
> (In reply to Rainer Orth from comment #9)
>> I see the same issue on some Solaris 10/SPARC systems on UltraSPARC T2:
>
> do you use the default mutex-based implementation for lib atomic?
I do, since this is the only option on SPARC.
> (I suspect that this is where the darwin slowness originates)
>
> if I configure --with-cpu=core2 (which allows 16b exchanges) the time drops
> from ~50m => 5m with the complex double tests dominating as you have.
Even that seems to require ifunc support, which isn't supported on Solaris
even with gld.
Rainer