[Bug lto/114542] New: -flto=4294967296 is treated the same as -flto=0 and -flto=4294967297 is treated the same as -flto=1 instead of being invalid options

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114542

            Bug ID: 114542
           Summary: -flto=4294967296 is treated the same as -flto=0 and
                    -flto=4294967297 is treated the same as -flto=1
                    instead of being invalid options
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: accepts-invalid
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
            Blocks: 44574
  Target Milestone: ---

Due to the uses of atoi in opts.c, lto-wrapper.c and lto/lto.c,
`-flto=4294967297` is treated as `-flto=1` 

Plus `-flto=429496729b` is treated as being allowed.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44574
[Bug 44574] [meta-bug] Avoid use of atoi