[Bug ipa/123517] [16 regression] infinite loop in ext-dce (due to miscompiling of ext-dce with -O3 -march=native) while compiling _gcov_execl.i since r16-6652

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123517

Martin Jambor <jamborm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #12 from Martin Jambor <jamborm at gcc dot gnu.org> ---
(In reply to Sergei Trofimovich from comment #11)
> I'm not sure if it's exactly the same issue, but I managed to extract
> something smaller in PR123543 related to ipa-cp.

I think it is.  I was able to do a (C and C++ only) -O3 native bootstrap on a
Zen3 machine with the fix applied while it seems it was both ICEing and
endlessly looping without it.

Please re-open if there still are any issues.

*** This bug has been marked as a duplicate of bug 123543 ***