Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only

2017-07-05 Thread Dr. Philipp Tomsich
> On 05 Jul 2017, at 10:59, Peng Fan wrote: > >> I just tested the “armv8-a+nosimd” specification on (configured as aarch64-*- >> linux-gnueabi) 4.9.1, 4.9.3, 5.4.0, 6.3.0 and (configured as aarch64-*-elf) >> 6.3.0 >> and 7.1.0… …unfortunately this was all that I could find installed on our >>

Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only

2017-07-05 Thread Peng Fan
> -Original Message- > From: Dr. Philipp Tomsich [mailto:philipp.toms...@theobroma-systems.com] > Sent: Wednesday, July 05, 2017 4:38 PM > To: Peng Fan > Cc: Tom Rini ; u-boot@lists.denx.de > Subject: Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only > >

Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only

2017-07-05 Thread Dr. Philipp Tomsich
> On 05 Jul 2017, at 03:23, Peng Fan wrote: > > > >> -Original Message- >> From: Tom Rini [mailto:tr...@konsulko.com] >> Sent: Wednesday, July 05, 2017 3:38 AM >> To: Dr. Philipp Tomsich >> Cc: Peng Fan ; u-boot@lists.denx.de >>

Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only

2017-07-04 Thread Peng Fan
> -Original Message- > From: Tom Rini [mailto:tr...@konsulko.com] > Sent: Wednesday, July 05, 2017 3:38 AM > To: Dr. Philipp Tomsich > Cc: Peng Fan ; u-boot@lists.denx.de > Subject: Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only > > On Tue, Jul 04,

Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only

2017-07-04 Thread Peng Fan
> -Original Message- > From: Tom Rini [mailto:tr...@konsulko.com] > Sent: Wednesday, July 05, 2017 3:38 AM > To: Dr. Philipp Tomsich > Cc: Peng Fan ; u-boot@lists.denx.de > Subject: Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only > > On Tue, Jul 04,

Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only

2017-07-04 Thread Tom Rini
On Tue, Jul 04, 2017 at 06:38:10PM +0200, Dr. Philipp Tomsich wrote: > Tom, > > Please note that some GCC versions had a code-generation bug > when -mgeneral-regs-only was used (we hit this for a customer in > a vendor GCC we maintain): > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64304 >

Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only

2017-07-04 Thread Dr. Philipp Tomsich
Tom, Please note that some GCC versions had a code-generation bug when -mgeneral-regs-only was used (we hit this for a customer in a vendor GCC we maintain): https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64304 Until everyone upgrades to a recently recent GCC (or until UBoot enforces this n

Re: [U-Boot] [PATCH 1/2] armv8: apply -mgeneral-regs-only

2017-07-04 Thread Tom Rini
On Mon, Jul 03, 2017 at 09:14:07PM +0800, Peng Fan wrote: > Pass -mgeneral-regs-only to GCC, if not compiler may generate > instructions that use SIMD registers. > > Signed-off-by: Peng Fan > Cc: Albert Aribaud > Cc: Tom Rini Reviewed-by: Tom Rini -- Tom signature.asc Description: Digita