On Tue, Apr 29, 2025 at 6:49 PM Uros Bizjak wrote:
>
> On Tue, Apr 29, 2025 at 12:41 PM H.J. Lu wrote:
> >
> > On Tue, Apr 29, 2025 at 5:52 PM Uros Bizjak wrote:
> > >
> > > MOVS instructions allow segment override of their source operand, e.g.:
> > >
> > > rep movsq %gs:(%rsi), (%rdi)
> > >
On Tue, Apr 29, 2025 at 12:41 PM H.J. Lu wrote:
>
> On Tue, Apr 29, 2025 at 5:52 PM Uros Bizjak wrote:
> >
> > MOVS instructions allow segment override of their source operand, e.g.:
> >
> > rep movsq %gs:(%rsi), (%rdi)
> >
> > where %rsi is the address of the source location (with %gs segmen
On Tue, Apr 29, 2025 at 5:52 PM Uros Bizjak wrote:
>
> MOVS instructions allow segment override of their source operand, e.g.:
>
> rep movsq %gs:(%rsi), (%rdi)
>
> where %rsi is the address of the source location (with %gs segment override)
> and %rdi is the address of the destination location
MOVS instructions allow segment override of their source operand, e.g.:
rep movsq %gs:(%rsi), (%rdi)
where %rsi is the address of the source location (with %gs segment override)
and %rdi is the address of the destination location.
The testcase improves from (-O2 -mno-sse -mtune=generic):
