Reid Kleckner 09450da653 [SEH] Push reloads of the SEH code past phi nodes ...

This in turn would sometimes introduce new cleanupblocks that didn't
previously exist. The uses were being introduced by SSA value demotion.
We actually want to *promote* uses of EH pointers and selectors, so I
added some spcecial casing to avoid demoting such instructions.  This is
getting overly complicated, but hopefully we'll come along and delete it
in the new representation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241950 91177308-0d34-0410-b5e6-96231b3b80d8

2015-07-10 22:21:54 +00:00

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