Displaying 2 results from an estimated 2 matches for "basicblockfrequ".
2016 Feb 05
2
Profiling with LLVM.
...uot;, i32 -2147483648, i32 0}
> !155 = !{!"branch_weights", i32 1075807200, i32 -1501637297}
> !181 = !{!"branch_weights", i32 -965299388, i32 218980800}
This should be a counter overflow.
Now the interesting thing is that by using these annotated files as input
for the BasicBlockFrequency analysis pass,the output seems to give correct
numbers, regarding the Frequency execution of each Basic Block, even though
few of the counters have overflowed.
This seems like a bug, unless I need to do specific configurations while
running the profiling part before the analysis.
>From your...
2016 Feb 04
2
Profiling with LLVM.
Dear Duncan,
Thank you a lot for your feedback. I have a problem though. The branch
weights counters overflow in some files and thus I get incorrect numbers.
Is there any way to find a workaround for that? Is is supposed to be a
known bug or is it something that needs configuration on my part?
Again, thank you a lot for your reply.
Best Regards,
Georgios Zacharopoulos
2016-02-03 18:23