Displaying 3 results from an estimated 3 matches for "0ca54323".
2013 Dec 18
2
[LLVMdev] LLVM ARM VMLA instruction
On 18 December 2013 09:42, Tim Northover <t.p.northover at gmail.com> wrote:
> That means one strictly newer than
> cortex-a8: cortex-a7 (don't ask), cortex-a9, cortex-a12, cortex-a15 or
> krait I believe.
>
Hi Tim,
Cortex A8 and A9 use VFPv3. A7, A12 and A15 use VFPv4.
cheers,
--renato
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
2013 Dec 18
0
[LLVMdev] LLVM ARM VMLA instruction
> Cortex A8 and A9 use VFPv3. A7, A12 and A15 use VFPv4.
That's what I thought! But we do seem to generate vfma on Cortex-A9.
Wonder if that's a bug, or Cortex-A9 is "VFPv3, but chuck in vfma
too"?
Tim.
2013 Dec 18
2
[LLVMdev] LLVM ARM VMLA instruction
...are too
big. I think the conclusion is to only use NEON instead of VFP (when
they're semantically similar) when -unsafe-math is on.
cheers,
--renato
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20131218/0ca54323/attachment.html>