RFR (S): Failure after windows compiler upgrade
nils.eliasson at oracle.com
Tue Apr 28 12:29:03 UTC 2015
Which platforms did you ues SSE instructions on? It looks like the
default for windows ia32 with VS2010 equals VS2013 with /arch:IA32 flag.
On 2015-04-27 23:07, Kim Barrett wrote:
> On Apr 27, 2015, at 10:10 AM, Nils Eliasson <nils.eliasson at oracle.com> wrote:
>> A drawback is that this option also prevents any usage of SSE on the i586 platform.
> That could be a pretty severe drawback.
> For example, I’ve been working on some GC performance optimizations that can take advantage of SSE when available. I think this change would mean that the relevant code would require compile-time disable and could not use a runtime configuration test (which would succeed and permit SSE usage on anything other than low end embedded or very ancient hardware).
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