Re: [PATCH] Allow FP to be used as a call-saved registe

2016-09-19 Thread Jeff Law
On 09/19/2016 03:45 AM, Richard Earnshaw (lists) wrote: So those don't seem to me to imply that the frame pointer needs to be a fixed register. So the first thing I'd do is fix the aarch64 port to not do that and see what fallout there is and how to fix it. Most ports simply don't mark the fra

Re: [PATCH] Allow FP to be used as a call-saved registe

2016-09-19 Thread Richard Earnshaw (lists)
On 15/09/16 17:36, Jeff Law wrote: > On 09/13/2016 05:10 AM, Tamar Christina wrote: >> Hi Jeff, >> >> >> On 12/09/16 18:16, Jeff Law wrote: >>> On 09/05/2016 08:59 AM, Tamar Christina wrote: Hi All, This patch allows the FP register to be used as a call-saved register when -fomi

Re: [PATCH] Allow FP to be used as a call-saved registe

2016-09-15 Thread Jeff Law
On 09/13/2016 05:10 AM, Tamar Christina wrote: Hi Jeff, On 12/09/16 18:16, Jeff Law wrote: On 09/05/2016 08:59 AM, Tamar Christina wrote: Hi All, This patch allows the FP register to be used as a call-saved register when -fomit-frame-pointer is used. The change is done in such a way that th

Re: [PATCH] Allow FP to be used as a call-saved registe

2016-09-13 Thread Tamar Christina
Hi Jeff, On 12/09/16 18:16, Jeff Law wrote: On 09/05/2016 08:59 AM, Tamar Christina wrote: Hi All, This patch allows the FP register to be used as a call-saved register when -fomit-frame-pointer is used. The change is done in such a way that the defaults do not change. To use the FP register

Re: [PATCH] Allow FP to be used as a call-saved registe

2016-09-12 Thread Jeff Law
On 09/05/2016 08:59 AM, Tamar Christina wrote: Hi All, This patch allows the FP register to be used as a call-saved register when -fomit-frame-pointer is used. The change is done in such a way that the defaults do not change. To use the FP register both -fomit-frame-pointer and -fcall-saved- ne

Re: [PATCH] Allow FP to be used as a call-saved registe

2016-09-12 Thread James Greenhalgh
On Mon, Sep 05, 2016 at 03:59:18PM +0100, Tamar Christina wrote: > Hi All, > > This patch allows the FP register to be used as a call-saved > register when -fomit-frame-pointer is used. > > The change is done in such a way that the defaults do not change. > To use the FP register both -fomit-fram

[PATCH] Allow FP to be used as a call-saved registe

2016-09-05 Thread Tamar Christina
Hi All, This patch allows the FP register to be used as a call-saved register when -fomit-frame-pointer is used. The change is done in such a way that the defaults do not change. To use the FP register both -fomit-frame-pointer and -fcall-saved- need to be used. Regression ran on aarch64-none-li