• Hoenir <mrmocool gmx.de> Nov 19 2008
• bearophile <bearophileHUGS lycos.com> Nov 19 2008
• Hoenir <mrmocool gmx.de> Nov 19 2008
• "Jarrett Billingsley" <jarrett.billingsley gmail.com> Nov 19 2008
• Trass3r <mrmocool gmx.de> Jan 22 2009
• Jarrett Billingsley <jarrett.billingsley gmail.com> Jan 22 2009

Hoenir <mrmocool gmx.de> writes:

Does DMD provide/support something like the SSE intrinsics available in C++?
Or is it only available in GDC? I'm not sure if this sort of thing 
belongs to front- or backend.

bearophile <bearophileHUGS lycos.com> writes:

Hoenir:
 Does DMD provide/support something like the SSE intrinsics available in C++?


Currently not. You can use SSE instructions inlining assembly code (it's not
too much difficult, there are documents online that show you how to use the SSE
instructions, but it may require some time to write the code).

Bye,
bearophile

Hoenir <mrmocool gmx.de> writes:

bearophile schrieb:
 Hoenir:
 Does DMD provide/support something like the SSE intrinsics available in C++?


 Currently not. You can use SSE instructions inlining assembly code (it's not
too much difficult, there are documents online that show you how to use the SSE
instructions, but it may require some time to write the code).
 


time-consuming and harder to maintain/change ;)

"Jarrett Billingsley" <jarrett.billingsley gmail.com> writes:

On Wed, Nov 19, 2008 at 1:32 PM, bearophile <bearophileHUGS lycos.com> wrote:
 Hoenir:
 Does DMD provide/support something like the SSE intrinsics available in C++?


 Currently not. You can use SSE instructions inlining assembly code (it's not
too much difficult, there are documents online that show you how to use the SSE
instructions, but it may require some time to write the code).

 Bye,
 bearophile


Why do that when you could use some template madness to make an SSE
assembler?  ;)

Trass3r <mrmocool gmx.de> writes:

Jarrett Billingsley schrieb:
 Why do that when you could use some template madness to make an SSE
 assembler?  ;)


^^ Would that make sense?
How do those intrinsics get evaluated? I mean in which step of 
compilation, in the frontend or backend, etc.

Jarrett Billingsley <jarrett.billingsley gmail.com> writes:

On Thu, Jan 22, 2009 at 10:43 AM, Trass3r <mrmocool gmx.de> wrote:
 Jarrett Billingsley schrieb:
 Why do that when you could use some template madness to make an SSE
 assembler?  ;)


 ^^ Would that make sense?
 How do those intrinsics get evaluated? I mean in which step of compilation,
 in the frontend or backend, etc.


It was kind of a joke, but it's entirely possible.  You could write a
compile-time x86 assembler that would take a string and turn it into a
series of bytes.  Or simpler, just convert those instructions which
DMD doesn't know about into bytes, and leave the other instructions
alone.  You can then mix that into an assembly statement.

It's probably incredibly impractical for all but the simplest cases
but keep in mind that the compiler _is_ Turing-complete.