https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119355
--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Georg-Johann Lay <g...@gcc.gnu.org>: https://gcc.gnu.org/g:16065b6239aab2eecfd7a50f58d38324ee6478ba commit r15-8281-g16065b6239aab2eecfd7a50f58d38324ee6478ba Author: Georg-Johann Lay <a...@gjlay.de> Date: Tue Mar 18 21:22:22 2025 +0100 AVR: target/119355 - Fix ICE in pass avr-fuse-move / -mfuse-move. This ICE only occurred when the compiler is built with, say CXXFLAGS='-Wp,-D_GLIBCXX_ASSERTIONS'. The problem was that a value from an illegal REGNO was read. The value was not used in these cases, but the access triggered an assertion due to reading past std::array. gcc/ PR target/119355 * config/avr/avr-passes.cc (memento_t::apply): Only read values[p.arg] when it is actually used.
