From: Segher Boessenkool
> Sent: 16 March 2021 00:00
...
> > Although you may need to disable loop unrolling (often dubious at best)
> > and either force or disable some function inlining.
>
> The cases where GCC does loop unrolling at -O2 always help quite a lot.
> Or, do you have a
On Mon, Mar 15, 2021 at 04:38:52PM +, David Laight wrote:
> From: Rasmus Villemoes
> > Sent: 15 March 2021 16:24
> > On 12/03/2021 03.29, Segher Boessenkool wrote:
> > > On Tue, Mar 09, 2021 at 06:19:30AM +, Christophe Leroy wrote:
> > >> With some defconfig including
On Mon, Mar 15, 2021 at 05:23:44PM +0100, Rasmus Villemoes wrote:
> On 12/03/2021 03.29, Segher Boessenkool wrote:
> > On Tue, Mar 09, 2021 at 06:19:30AM +, Christophe Leroy wrote:
> >> With some defconfig including CONFIG_CC_OPTIMIZE_FOR_SIZE,
> >> (for instance mvme5100_defconfig and
From: Rasmus Villemoes
> Sent: 15 March 2021 16:24
>
> On 12/03/2021 03.29, Segher Boessenkool wrote:
> > Hi!
> >
> > On Tue, Mar 09, 2021 at 06:19:30AM +, Christophe Leroy wrote:
> >> With some defconfig including CONFIG_CC_OPTIMIZE_FOR_SIZE,
> >> (for instance mvme5100_defconfig and
On 12/03/2021 03.29, Segher Boessenkool wrote:
> Hi!
>
> On Tue, Mar 09, 2021 at 06:19:30AM +, Christophe Leroy wrote:
>> With some defconfig including CONFIG_CC_OPTIMIZE_FOR_SIZE,
>> (for instance mvme5100_defconfig and ps3_defconfig), gcc 5
>> generates a call to _restgpr_31_x.
>
>> I
On Tue, 9 Mar 2021 06:19:30 + (UTC), Christophe Leroy wrote:
> With some defconfig including CONFIG_CC_OPTIMIZE_FOR_SIZE,
> (for instance mvme5100_defconfig and ps3_defconfig), gcc 5
> generates a call to _restgpr_31_x.
>
> Until recently it went unnoticed, but
> commit 42ed6d56ade2
Le 09/03/2021 à 07:19, Christophe Leroy a écrit :
With some defconfig including CONFIG_CC_OPTIMIZE_FOR_SIZE,
(for instance mvme5100_defconfig and ps3_defconfig), gcc 5
generates a call to _restgpr_31_x.
Until recently it went unnoticed, but
commit 42ed6d56ade2 ("powerpc/vdso: Block
Hi!
On Tue, Mar 09, 2021 at 06:19:30AM +, Christophe Leroy wrote:
> With some defconfig including CONFIG_CC_OPTIMIZE_FOR_SIZE,
> (for instance mvme5100_defconfig and ps3_defconfig), gcc 5
> generates a call to _restgpr_31_x.
> I don't know if there is a way to tell GCC not to emit that call,
With some defconfig including CONFIG_CC_OPTIMIZE_FOR_SIZE,
(for instance mvme5100_defconfig and ps3_defconfig), gcc 5
generates a call to _restgpr_31_x.
Until recently it went unnoticed, but
commit 42ed6d56ade2 ("powerpc/vdso: Block R_PPC_REL24 relocations")
made it rise to the surface.
Provide
