https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110220
Georg-Johann Lay <gjl at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |gjl at gcc dot gnu.org
--- Comment #6 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
I can reproduce Andi's testcase, and with -fdisable-rtl-avr-casesi the ICE goes
away. Hence
1) This is just an accident, or
2) There is a bug in avr-specific pass avr-casesi (as dumped with
-fdump-rtl-avr-casesi) like wrong RTL-sharing or such, or
3) cfgrtl's assertion is too strict and effectively disallows such
target-specific (optimization) passes.
I don't currently have time to look into this in a timely manner.
