Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/dmd

  Commit: a6fbb45347a55bfeeff871cf162da47d605e2818
      https://github.com/D-Programming-Language/dmd/commit/a6fbb45347a55bfeeff871cf162da47d605e2818
  Author: Walter Bright <walter at walterbright.com>
  Date:   2011-10-28 (Fri, 28 Oct 2011)

  Changed paths:
    M src/backend/cod2.c

  Log Message:
  -----------
  first stab at using XMM regs

Does this mean that DMD will generate SSE code in 64-bit mode?

On Fri, Oct 28, 2011 at 5:15 PM, <noreply at github.com> wrote:

>  Branch: refs/heads/master
>  Home:   https://github.com/D-Programming-Language/dmd
>
>  Commit: a6fbb45347a55bfeeff871cf162da47d605e2818
>
> https://github.com/D-Programming-Language/dmd/commit/a6fbb45347a55bfeeff871cf162da47d605e2818
>  Author: Walter Bright <walter at walterbright.com>
>  Date:   2011-10-28 (Fri, 28 Oct 2011)
>
>  Changed paths:
>    M src/backend/cod2.c
>
>  Log Message:
>  -----------
>  first stab at using XMM regs
>
>
> _______________________________________________
> dmd-internals mailing list
> dmd-internals at puremagic.com
> http://lists.puremagic.com/mailman/listinfo/dmd-internals
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puremagic.com/pipermail/dmd-internals/attachments/20111028/873c5e4b/attachment.html>

On 10/28/2011 2:17 PM, David Simcha wrote:
> Does this mean that DMD will generate SSE code in 64-bit mode?
>

That's the plan. I've been wanting to get this done for a long time. 64 bit will be the test bed.

(64 bit code gen already has the necessary 64 bit stack alignment for this to work, also 100% of the 64 bit CPUs have XMM registers. This is not so for 32 bit CPUs other than OS X targets. I figure 32 bit OS X would be the next target.)

Because of its potential disruptiveness, I want to do this at the beginning of a release cycle.

Hi,

For 32-bit compilation, will we get a flag for enabling SSE, or will the generated code detect whether SSE exists on the CPU it's being run on?

Regards,
Alex

On Fri, Oct 28, 2011 at 11:26 PM, Walter Bright <walter at digitalmars.com> wrote:
>
>
> On 10/28/2011 2:17 PM, David Simcha wrote:
>>
>> Does this mean that DMD will generate SSE code in 64-bit mode?
>>
>
> That's the plan. I've been wanting to get this done for a long time. 64 bit will be the test bed.
>
> (64 bit code gen already has the necessary 64 bit stack alignment for this to work, also 100% of the 64 bit CPUs have XMM registers. This is not so for 32 bit CPUs other than OS X targets. I figure 32 bit OS X would be the next target.)
>
> Because of its potential disruptiveness, I want to do this at the beginning
> of a release cycle.
> _______________________________________________
> dmd-internals mailing list
> dmd-internals at puremagic.com
> http://lists.puremagic.com/mailman/listinfo/dmd-internals
>

Probably a flag. The auto-detect will result in a lot of code bloat, and would be unnecessary for 99.99% of the applications.

On 10/28/2011 2:43 PM, Alex wrote:
>
> For 32-bit compilation, will we get a flag for enabling SSE, or will the generated code detect whether SSE exists on the CPU it's being run on?
>