This removes some more dead code and refactors visit_use a bit.
Bootstrapped & tested on x86_64-unknown-linux-gnu, applied.
Richard.
2015-10-01 Richard Biener
* tree-ssa-sccvn.c (has_VN_INFO): New function.
(free_scc_vn): Use it.
(visit_use): Remove dead code and ref
Some cleanups before I touch this code.
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.
Richard.
2011-09-06 Richard Guenther
* tree-ssa-sccvn.c (visit_use): CSE stmt pieces and simplify
matching.
Index: gcc/tree-ssa-sccvn.c
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