[Bug c/80698] New: new unreachable code implementation possible?

[jg at jguk dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80698

            Bug ID: 80698
           Summary: new unreachable code implementation possible?
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jg at jguk dot org
  Target Milestone: ---

Hello

I know -Wunreachable-code implementation was removed in 2010, it would be great
to have again.

Simple example below, had some code after a "break" which then never ran, but
didn't spot it until it was reviewed by a programmer


// gcc -O3 -Wall -Werror main2.c -o main2

#include <stdio.h>

int main (void)
{
    for (;;)
    {
        break;

        printf("Hello\n");
    }

    return 0;
}

Happy to pay a bug bounty $200 for committed implementation!