Re: Question about information from -fdump-rtl-sched2 on M1 Max

2024-04-30 Thread Iain Sandoe
> On 30 Apr 2024, at 08:33, Iain Sandoe wrote: > > Hi, > >> On 30 Apr 2024, at 00:39, Andrew Pinski via Gcc wrote: >> >> On Mon, Apr 29, 2024 at 4:26 PM Lucier, Bradley J via Gcc >> wrote: >>> >>> The question: How to interpret scheduling info with the compiler listed >>> below. >>> >>>

Re: Question about information from -fdump-rtl-sched2 on M1 Max

2024-04-30 Thread Iain Sandoe
Hi, > On 30 Apr 2024, at 00:39, Andrew Pinski via Gcc wrote: > > On Mon, Apr 29, 2024 at 4:26 PM Lucier, Bradley J via Gcc > wrote: >> >> The question: How to interpret scheduling info with the compiler listed >> below. >> >> Specifically, a tight loop that was reported to be scheduled in 23

Re: Question about information from -fdump-rtl-sched2 on M1 Max

2024-04-29 Thread Andrew Pinski via Gcc
On Mon, Apr 29, 2024 at 4:26 PM Lucier, Bradley J via Gcc wrote: > > The question: How to interpret scheduling info with the compiler listed below. > > Specifically, a tight loop that was reported to be scheduled in 23 cycles (as > I understand it) actually executes in a little over 2 cycles per

Re: Question about information from -fdump-rtl-sched2 on M1 Max

2024-04-29 Thread Lucier, Bradley J via Gcc
That should be 4 cycles per loop, sorry. > On Apr 29, 2024, at 7:24 PM, Lucier, Bradley J wrote: > > Specifically, a tight loop that was reported to be scheduled in 23 cycles (as > I understand it) actually executes in a little over 2 cycles per loop