------- Comment #6 from howarth at nitro dot med dot uc dot edu  2010-03-10 
01:57 -------
The code being degraded by -fgraphite-identity (when using -ffast-math
-funroll-loops -O3) is in the mqr_m and mqc_m modules. The exact distribution
of performance loss in execution time for the induct benchmark is...

no use of -fgraphite-identity                                      12.695 sec
-fgraphite-identity for all                                            20.177
sec
-fgraphite-identity for all but mqc_m                       14.293 sec
-fgraphite-identity for all but mqr_m                        18.598 sec
-fgraphite-identity for all but mqc_m and mqr_m   12.677 sec

as benchmarked on x86_64-apple-darwin10.


-- 


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

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