On 11/28/2017 04:34 AM, Siddhesh Poyarekar wrote:
> On Friday 24 November 2017 05:36 PM, Siddhesh Poyarekar wrote:
>> freq_max < 1, i.e. highest frequency among bbs in the function being
>> higher than real_bb_freq_max means that the bb ends up with a profile
>> count larger than real_bb_freq_max and then can go all the way up to
>> and beyond profile_count::max_count.
>>
>> Bootstrapped on aarch64, testsuite in progress.
> 
> Tests came out clean (no new regressions) on aarch64 and x86_64.  Ping?
> 
> Siddhesh
> 
>>
>>      * gcc/predict.c (estimate_bb_frequencies): Don't reset freq_max.
>>      * gcc/testsuite/gcc.dg/pr83069.c: New test case.
Just a note.  Honza indicated in the associated BZ that he was going to
prepare an alternate patch to address this problem.

Jeff

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