[Bug middle-end/40979] induct benchmark 60% slower when compiled with -fgraphite-identity

[dominiq at lps dot ens dot fr]

------- Comment #4 from dominiq at lps dot ens dot fr  2010-02-25 15:23 -------
At revision 156693 or higher, the miscompilation with -floop-interchange
reported in comment #3 is gone. As a consequence the corresponding execution
time is now the same as when compiled with -fgraphite-identity. 

The timings wit/without the options correspond to a missed vectorization of the
critical loops.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40979