On Thu, 24 Jun 2021 at 07:34, gmail Vladimir Koković via Gcc-help <gcc-help@xxxxxxxxxxx> wrote: > > > I'm not sure if this is a GCC bug so I'm looking for help. > > Namely, although everything is regular when it comes to .C programs, the > result is defective executable. Defective how? You haven't even told us what the error is. As it says at https://gcc.gnu.org/bugs/ "Before reporting that GCC compiles your code incorrectly, compile it with gcc -Wall -Wextra and see whether this shows anything wrong with your code. Similarly, if compiling with -fno-strict-aliasing -fwrapv -fno-aggressive-loop-optimizations makes a difference, or if compiling with -fsanitize=undefined produces any run-time errors, then your code is probably not correct. " Have you tried those options?
