[Bug target/40105] SH: 4.3/4.4 compilers segfault when recompiling itself on gentoo system

["kkojima at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #3 from kkojima at gcc dot gnu dot org  2009-05-12 22:37 -------
Ah, now I understand the issue and find that what we need
in the bug report http://gcc.gnu.org/bugs.html#need is in
http://bugs.gentoo.org/show_bug.cgi?id=267247.  Next time,
please give the minimal information to reproduce the problem
in the bug report itself, not in some URL.
The real problem will be the wrong code problem with -O1
for 4.3 compiler on SH, rather than a bootstrap problem.  It
might be very hard to solve, though.  Perhaps we can find what
part of the compiler is miscompiled with the 4.3 compiler
with -O by replacing gcc/*.o objects compiled with -O2.
Even if we can detect a problematic .o, it will be very
large and it'd be difficult to get an appropriate test case
which is wrongly compiled with -O.  We can't go forward
without such a test case.


-- 

kkojima at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW
          Component|bootstrap                   |target
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-05-12 22:37:54
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40105