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Re: AutoFDO profile toolchain is open-sourced


On Tue, Apr 7, 2015 at 9:45 AM, Ilya Palachev <i.palachev@samsung.com> wrote:
> In the mentioned README file it is said that " In order to collect this
> profile, you will need to have an Intel CPU that have last branch record
> (LBR) support." Is this information obsolete? Chrome Canary builds use
> AutoFDO for ARMv7l
> (https://code.google.com/p/chromium/issues/detail?id=434587)

It does not mean that the profile was recorded on an ARM system: they
can gather perf.data on x86 and then produce a coverage file that is
then used in ARM compiles.  I tried it and seems to work well.

Sebastian


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