[Bug tree-optimization/38440] auto-increment generation does not work

[amylaar at gcc dot gnu dot org]

------- Comment #7 from amylaar at gcc dot gnu dot org  2008-12-10 05:40 -------
(In reply to comment #6)
> This is most likely a duplicate of bug 31849.  IV-opts does not understand at
> all auto-increment/decrement.

I see little in common with the original subject of PR31849 (that was primarily
about hoisting out a constant load), but there is
some similarity with the code from comment 7 , and the patch from comment #25
appears salient, although bitrotted.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38440