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This patch introduces a VPValue in VPBlockBase to represent the condition bit that is used as successor selector when a block has multiple successors. This information wasn't necessary until now, when we are about to introduce outer loop vectorization support in VPlan code gen. Reviewers: fhahn, rengolin, mkuper, hfinkel, mssimpso Reviewed By: fhahn Differential Revision: https://reviews.llvm.org/D48814 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336554 91177308-0d34-0410-b5e6-96231b3b80d8