Re: What -mfpu option is used with neon, vfpv3 and vfpd32 flag?

2016-07-22 Thread Richard Earnshaw
On 22/07/16 05:21, Jeffrey Walton wrote: > On Fri, Jul 22, 2016 at 12:19 AM, Jim Wilson wrote: >> On Thu, Jul 21, 2016 at 9:13 PM, Jeffrey Walton wrote: >>> So I guess the question is, what do I use for -mfpu=neon-vfp3 (or >>> -mfpu=neon-vfp3-d32)? Is

Re: What -mfpu option is used with neon, vfpv3 and vfpd32 flag?

2016-07-21 Thread Jeffrey Walton
On Fri, Jul 22, 2016 at 12:19 AM, Jim Wilson wrote: > On Thu, Jul 21, 2016 at 9:13 PM, Jeffrey Walton wrote: >> So I guess the question is, what do I use for -mfpu=neon-vfp3 (or >> -mfpu=neon-vfp3-d32)? Is -mfpu=neon enough? > > The -mfpu=neon option is

Re: What -mfpu option is used with neon, vfpv3 and vfpd32 flag?

2016-07-21 Thread Jim Wilson
On Thu, Jul 21, 2016 at 9:13 PM, Jeffrey Walton wrote: > So I guess the question is, what do I use for -mfpu=neon-vfp3 (or > -mfpu=neon-vfp3-d32)? Is -mfpu=neon enough? The -mfpu=neon option is enough. neon implies vfpv3 and 32 D registers. Jim

Re: What -mfpu option is used with neon, vfpv3 and vfpd32 flag?

2016-07-21 Thread Jim Wilson
On Thu, Jul 21, 2016 at 8:48 PM, Jeffrey Walton wrote: > Is there an arm-msr-tools or similar that has setuid so we can access the > MSRs? I'm not familiar with any such tool, but I haven't looked for one before. I found an x86 msr-tools project at github with a web search.

Re: What -mfpu option is used with neon, vfpv3 and vfpd32 flag?

2016-07-21 Thread Jeffrey Walton
On Thu, Jul 21, 2016 at 11:30 PM, Jim Wilson wrote: > On Thu, Jul 21, 2016 at 6:33 PM, Jeffrey Walton wrote: >> I think vfpd32 cpu flag means I have 32 D-registers. The cpu flags >> neon and vfpv3 flags means I want something more than -mfpu=neon-fp16,

Re: What -mfpu option is used with neon, vfpv3 and vfpd32 flag?

2016-07-21 Thread Jeffrey Walton
On Thu, Jul 21, 2016 at 11:30 PM, Jim Wilson wrote: > On Thu, Jul 21, 2016 at 6:33 PM, Jeffrey Walton wrote: >> I think vfpd32 cpu flag means I have 32 D-registers. The cpu flags >> neon and vfpv3 flags means I want something more than -mfpu=neon-fp16,

Re: What -mfpu option is used with neon, vfpv3 and vfpd32 flag?

2016-07-21 Thread Jim Wilson
On Thu, Jul 21, 2016 at 6:33 PM, Jeffrey Walton wrote: > I think vfpd32 cpu flag means I have 32 D-registers. The cpu flags > neon and vfpv3 flags means I want something more than -mfpu=neon-fp16, > but I'm not sure what that is. neon implies vfvp3 and 32 D-registers and

What -mfpu option is used with neon, vfpv3 and vfpd32 flag?

2016-07-21 Thread Jeffrey Walton
Hi Everyone, I'm looking at the features of a BeagleBone Black. Its /proc/cpuinfo is below. I think vfpd32 cpu flag means I have 32 D-registers. The cpu flags neon and vfpv3 flags means I want something more than -mfpu=neon-fp16, but I'm not sure what that is. My question is, what GCC ARM