[Bug tree-optimization/53774] Reassociator generates non-canonical addition

[wschmidt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53774

--- Comment #3 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2012-06-26 18:42:41 UTC ---
I wonder why fp_6(D) gets a rank of zero.  Is it an uninitialized variable or a
parameter?  Parms are supposed to get small positive numbers for ranks.  Maybe
the "right" fix is to force fp_6(D) to get a nonzero rank?