[Bug middle-end/110399] pointer substraction causes coredump with ftrapv on edge case

[baiwfg2 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110399

--- Comment #3 from Chan Lewis  ---
(In reply to Andrew Pinski from comment #2)
> Dup of bug 13421.
> 
> *** This bug has been marked as a duplicate of bug 13421 ***

I see. I wonder why gcc consider pointer signed and need to abort in this case,
whereas clang still works as expected. If we change pointer to unsigned in our
codebase, that will be lots of work.

[Bug middle-end/110399] pointer substraction causes coredump with ftrapv on edge case

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110399

Andrew Pinski  changed:

   What|Removed |Added

 Resolution|--- |DUPLICATE
 Status|UNCONFIRMED |RESOLVED

--- Comment #2 from Andrew Pinski  ---
Dup of bug 13421.

*** This bug has been marked as a duplicate of bug 13421 ***

[Bug middle-end/110399] pointer substraction causes coredump with ftrapv on edge case

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110399

--- Comment #1 from Andrew Pinski  ---
32 bit, w1=2
w2=2
w3=2
w4=0
w5=2

Program received signal SIGABRT, Aborted.