[LLVMdev] LLVM intrinsic for SSE ANDPS instruction

Zoltan Varga vargaz at gmail.com
Tue Dec 8 12:15:34 PST 2009


  That seems to work, thanks.


On Tue, Dec 8, 2009 at 8:57 PM, Samuel Crow <samuraileumas at yahoo.com> wrote:

> Hi Zoltan,
> I think the bitcast operation is rather painless to use.  And if you want
> to be able to execute it on a float vector you could try putting the and
> operation in a function with inline linkage and that would be all that's
> needed to convert over and back.  BTW, bitcasting is a no-op conversion in
> actual code.
> --Sam Crow
> *From:* Zoltan Varga <vargaz at gmail.com>
> *To:* Evan Cheng <evan.cheng at apple.com>
> *Cc:* LLVM Developers Mailing List <llvmdev at cs.uiuc.edu>
> *Sent:* Tue, December 8, 2009 1:39:18 PM
> *Subject:* Re: [LLVMdev] LLVM intrinsic for SSE ANDPS instruction
> Hi,
>   The arguments to the 'and' instruction must be integer types or vectors
> of integer types. If
> I have a compiler whose source language has support for andps by having its
> own intrinsics,
> then I would have to generate code to convert the float vector into an int
> vector before passing
> it to llvm's and instruction, then convert the result back.
>                                                      Zoltan
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