[Bug optimization/13653] [3.3 regression] -O2 -funroll-loop miscompiles POOMA testcase

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-01-15 19:10 -------
For whatever reason, the sources I just attached need to be compiled 
with -pthread. Trying to reduce the testcase presently exceeds my time 
limits, though, in particular since compiling with these flags and 
-ggdb does not yield any meaningful backtrace etc :-( Local variables 
are also useless, so I am not sure whether Richard's initial analysis 
is valid. 
 
Richard: can you try and see what happens when you use a recent snapshot 
from gcc mainline? 
 
Thanks 
  W. 

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13653