[Bug middle-end/57370] [4.9 Regression] compile time hog in reassoc

[Joost.VandeVondele at mat dot ethz.ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57370

--- Comment #4 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> 
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I killed the compilation after 15h...