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Re: if-conversion/HOT-COLD partitioning


On Fri, Oct 26, 2012 at 12:14 AM, Steven Bosscher <stevenb.gcc@gmail.com> wrote:
> On Thu, Oct 25, 2012 at 4:10 PM, Christophe Lyon wrote:
>> It looks like something is wrong with the CFG:
>>
>>        |
>>    19 (COLD)
>>     /     \
>>    /       \
>> 20 (COLD)  21 (COLD)
>>    \       /
>>     \     /
>>      22 (HOT)
>
> So the partitioning is messed up, the above makes no sense. Where does
> it come from?

Oh, and you can of course always attach dumps to a PR. If you dump
with -fdump-{tree,rtl}-all-blocks-details, the profile counts are also
reported in the dumps, and the evolution of the CFG from the initial
partitioning to the thing you've ASCII-arted above can be deduced.

Ciao!
Steven


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