[Bug tree-optimization/17790] [4.0 Regression] Significant compile time increases for sixtrack with tree LICM and IV optimization

[rakdver at gcc dot gnu dot org]

------- Additional Comments From rakdver at gcc dot gnu dot org  2004-10-17 20:16 -------
IM problem seems to be caused by some inefficiency in store motion (I suspect
scanning loop repeatedly for various insignificant virtual operands).  Anyway,
the patch for PR 17133 (complete rewrite of store motion) fixes this (reduces
the compile time to <1%).

http://gcc.gnu.org/ml/gcc-patches/2004-09/msg01120.html

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17790