[llvm-commits] [PATCH] Incorrect VFP version supporting ARM Cortex-M4

[Jim Grosbach]

There are lots more instructions than just vfma/vfms that are enabled by VFP4. Are these all supported by Cortex-M4?

-Jim

On Jul 26, 2012, at 2:47 AM, Jiangning Liu <jiangning.liu at arm.com> wrote:

> 
> 
>> -----Original Message-----
>> From: rengolin at gmail.com [mailto:rengolin at gmail.com] On Behalf Of Renato
>> Golin
>> Sent: Thursday, July 26, 2012 5:21 PM
>> To: Jiangning Liu
>> Cc: Jiangning Liu; Jim Grosbach; llvm-commits at cs.uiuc.edu for LLVM
>> Subject: Re: [llvm-commits] [PATCH] Incorrect VFP version supporting ARM
>> Cortex-M4
>> 
>> On 26 July 2012 09:35, Jiangning Liu <Jiangning.Liu at arm.com> wrote:
>>> PING... Who can help to review this piece of code change?
>> 
>> Hi Jiangning,
>> 
>> Cortex-A15 seems to have VFPv4-D32, while cortex-M4 has VFPv4-SP, how do
>> you suppose to differentiate them?
>> 
> 
> I expect FeatureVFPOnlySP is to support SP-D16, although the name doesn't
> represent d16 yet. At present, Cortex-M4 should be the only one using this
> definition.
> 
> Thanks,
> -Jiangning
> 
>> 
>> --
>> cheers,
>> --renato
>> 
>> http://systemcall.org/
> 
> 
>