[issue34820] binascii.c:1578:1: error: the control flow of function ‘binascii_crc32’ does not match its profile data (counter ‘arcs’)

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan <tir.karthi at gmail.com> added the comment:

Thanks for the report. 

* Can you please add the OS, GCC details, full traceback and command that triggers the error? 
* Is it consistent?
* Are you adding a flag to treat all the warnings as errors? 

I assume you are running PGO. As I can see on the bots for PGO they are green on Debian for the commit : https://buildbot.python.org/all/#/builders/47/builds/1609/steps/2/logs/stdio .  There is a issue related to PGO that causes internal compiler error but I don't think it's related here and it suggests doing make clean since previous build artifacts might cause an issue : https://bugs.python.org/issue31963#msg305708

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