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Re: Tree-ssa dead store elimination



On Apr 13, 2005, at 5:12 PM, Pat Haugen wrote:


Sorry if there is an obvious answer for this, but I'm not to familiar with
the tree-ssa phase.


My question is, why doesn't tree-ssa-dse.c do anything to the following
code?

Because it does not understand V_MUST_DEF, see PR 18880 for a patch and more
information on the problem.


-- Pinski


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