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2015 Feb 27
1
[LLVMdev] [RFC] AArch64: Should we disable GlobalMerge?
...verywhere else I've looked.
> - disabling it with LTO regresses quite a few SPEC benchmarks, and is
> overall a slight regression on the test-suite.
>
>
Ah, I meant an analysis of the code, not just the numbers. I think the
ADRP/LOH commentary really helps. It might only be a decent LTOish
optimization, but I'm still curious how it's helping there over other
optimizations.
Anyhow, FWIW I'm in favor of pulling it out of the non-LTO pipeline
universally.
-eric
> -Ahmed
>
> > -eric
> >
>
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2015 Feb 27
0
[LLVMdev] [RFC] AArch64: Should we disable GlobalMerge?
On Fri, Feb 27, 2015 at 1:42 PM, Eric Christopher <echristo at gmail.com> wrote:
>
>
> On Fri, Feb 27, 2015 at 1:38 PM Ahmed Bougacha <ahmed.bougacha at gmail.com>
> wrote:
>>
>> On Thu, Feb 26, 2015 at 2:33 AM, Kristof Beyls <kristof.beyls at arm.com>
>> wrote:
>> >
>> > Hi Ahmed,
>> >
>> > Did you run these
2015 Feb 27
2
[LLVMdev] [RFC] AArch64: Should we disable GlobalMerge?
On Fri, Feb 27, 2015 at 1:38 PM Ahmed Bougacha <ahmed.bougacha at gmail.com>
wrote:
> On Thu, Feb 26, 2015 at 2:33 AM, Kristof Beyls <kristof.beyls at arm.com>
> wrote:
> >
> > Hi Ahmed,
> >
> > Did you run these experiments on a platform with a linker that makes
> > use of the AArch64CollectLOH-pass-produced information?
>
> As Jim says,