[Bug rtl-optimization/19580] [4.0/4.1/4.2/4.3 Regression] missed load/store motion

[rguenth at gcc dot gnu dot org]

------- Comment #37 from rguenth at gcc dot gnu dot org  2008-01-23 09:12 -------
The lim patch applies alias-oracle techniques to the loop invariant and store
motion parts of tree-ssa-loop-im.c.  I have a forward-port of Zdeneks patch to
current trunk.

Note that the alias-oracle patch for SCCVN does not fix this PR (it seems to
be mostly ineffective for PRE, possibly PHI translation needs adjustments
as well).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19580