Patch for 3.4.4. Infinite memory allocation on -O3 (PR #18081).

[Ulrich Weigand]

Mark Mitchell wrote:
> Grigory Tolstolytkin wrote:
> > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18081
> > 
> > The patch was verified with the latest 3.4.4 build (20050506) for 
> > arm-unknown-linux-gnu and i686-unknown-linux-gnu. It works fine it both 
> > cases.
> 
> I applied this patch to the 3.4 branch.

This causes two regressions on s390x-ibm-linux:
FAIL: 23_containers/multiset/invalidation/2.cc execution test
FAIL: 23_containers/set/invalidation/2.cc execution test

The testcases crash at run time due to apparent wrong code generation.
The generated assembler with and without the patch differs significantly;
I haven't yet managed to pin down the particular bug.  I'll continue
analysing this tomorrow ...

Bye,
Ulrich

-- 
  Dr. Ulrich Weigand
  Linux on zSeries Development
  Ulrich.Weigand@de.ibm.com