https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85450
--- Comment #7 from Christophe Lyon <clyon at gcc dot gnu.org> --- Created attachment 44023 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44023&action=edit Newlib's sysopen.i I could reproduce the problem with aarch64-none-elf too, and this requires -mabi=ilp32. Compiling the attached file with -c ./sysopen.i -mabi=ilp32: In file included from /home/christophe.lyon/src/GCC/sources/newlib/newlib/libc/include/sys/fcntl.h:3, from /home/christophe.lyon/src/GCC/sources/newlib/newlib/libc/include/fcntl.h:1, from /home/christophe.lyon/src/GCC/sources/newlib/newlib/libc/syscalls/sysopen.c:4: /home/christophe.lyon/src/GCC/sources/newlib/newlib/libc/include/sys/_default_fcntl.h: In function 'open': /home/christophe.lyon/src/GCC/sources/newlib/newlib/libc/include/sys/_default_fcntl.h:182:12: error: invalid types in nop conversion extern int open _PARAMS ((const char *, int, ...)); ^~~~ long long int void * _19 = (long long int) _18; /home/christophe.lyon/src/GCC/sources/newlib/newlib/libc/include/sys/_default_fcntl.h:182:12: error: invalid types in nop conversion long long int void * _28 = (long long int) _18; during GIMPLE pass: lower_vaarg /home/christophe.lyon/src/GCC/sources/newlib/newlib/libc/include/sys/_default_fcntl.h:182:12: internal compiler error: verify_gimple failed 0xc4cd2b verify_gimple_in_cfg(function*, bool) /home/christophe.lyon/src/GCC/sources/gcc-fsf/trunk/gcc/tree-cfg.c:5585 0xb03a27 execute_function_todo /home/christophe.lyon/src/GCC/sources/gcc-fsf/trunk/gcc/passes.c:1994 0xb04399 execute_todo /home/christophe.lyon/src/GCC/sources/gcc-fsf/trunk/gcc/passes.c:2048 My GCC is configured with: --target=aarch64-none-elf --disable-nls --without-headers --with-newlib --disable-shared --disable-threads --disable-libssp --disable-libgomp --disable-libmudflap --disable-libatomic --disable-libcilkrts --without-libquadmath --disable-libquadmath --enable-languages=c --with-newlib --disable-tls
