https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101574
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Thomas Schwinge from comment #6) > Short summary: I ran into an unexpected '0xa5a5a5a5' in > 'gcc/warning-control.cc', and a search through email archives pointed me to > PR101292, PR101204, which superficially indeed do look similar. > > Anybody got a good suggestion about how to proceed here? 0xa5a5a5a5 is written when the GC has reclaimed the memory. So the best way is to a reduced testcase using --param ggc-min-expand=0 --param ggc-min-heapsize=0 (note start with --param ggc-min-expand=1 --param ggc-min-heapsize=1 otherwise the compiler will be supper slow).
