[Bug debug/106955] [13 Regression] '-fcompare-debug' failure w/ -std=c++20 -O1 -ftree-parallelize-loops=2 -fno-ipa-sra --param ggc-min-expand=55

[asolokha at gmx dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106955

--- Comment #1 from Arseny Solokha <asolokha at gmx dot com> ---
Created attachment 53589
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53589&action=edit
Reduced preprocessed testcase

Unfortunately a 173K file is the best I could come up with after three days of
reduction, though it fails the check w/ just -std=c++20 -O1 -fcompare-debug
-ftree-parallelize-loops=2.