https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111677
--- Comment #9 from Gianfranco <costamagnagianfranco at yahoo dot it> --- /usr/libexec/gcc/aarch64-linux-gnu/13/cc1 -quiet -imultiarch aarch64-linux-gnu -D _FORTIFY_SOURCE=2 -D NDEBUG -isystem -dumpbase -mbranch-protection=standard -mtune=generic -mlittle-endian -mabi=lp64 -g -g -O2 -O3 -Wformat=1 -Werror=format-security -Wdate-time -Wall -Wformat=1 -Wformat-security -Wshadow -Wtype-limits -Wvla -Wold-style-declaration -Wmaybe-uninitialized -Wno-unknown-pragmas -Wno-error=varargs -Wformat-truncation=0 -Wno-error=address-of-packed-member -std=c99 -fstack-protector-strong -fstack-clash-protection -fopenmp -ffast-math -fno-finite-math-only -fexpensive-optimizations -fPIC -fasynchronous-unwind-tables -o - -frandom-seed=0 -fdump-noaddr -freport-bug testcase.i This reproduces the issue.