https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67000
--- Comment #4 from Gary Funck <gary at intrepid dot com> --- (In reply to Alexandre Oliva from comment #3) > The problem initially reported in this bug is now fixed in the git branch > aoliva/pr64164. I'm not sure how to go about duplicating the one in comment > 1, but, having fixed a number of additional split_complex issues since the > patch that caused the problems was put in, I hope it's fixed too. Gary, > would you please detail the toplevel configure and build command lines to > trigger it, or perhaps give the branch a try and confirm that it fixes the > problem? Thanks, Alexandre, The configuration command was along these lines: configure CFLAGS='-g3 -O0' CXXFLAGS='-g3 -O0' TARGET_CFLAGS='-g3 -O0' TARGET_CXXFLAGS='-g3 -O0' --enable-bootstrap=no --enable-checking=yes --enable-languages=c,c++ --disable-build-format-warnings PS: the issue did go away when merged with a later svn trunk version, consistent with Richard's comment #2.