[Bug tree-optimization/18431] Code for arrays and pointers are not the same
rakdver at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Fri Nov 12 11:24:00 GMT 2004
------- Additional Comments From rakdver at gcc dot gnu dot org 2004-11-12 11:24 -------
The problem seems to be that licm does not move load of q from the loop. Ivopts
then do not recognize q + 2*i as induction variable, and thus they are
optimizing it not like an address of memory reference, but just like a
computation of 2*i, for which it obviously does not make sense to perform
strength reduction.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18431
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