Merging r287227:

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r287227 | abataev | 2016-11-17 15:12:05 +0000 (Thu, 17 Nov 2016) | 4 lines

[OPENMP] Fixed codegen for 'omp cancel' construct.

If 'omp cancel' construct is used in a worksharing construct it may
cause hanging of the software in case if reduction clause is used. Patch fixes this problem by avoiding extra reduction processing for branches that were canceled.
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llvm-svn: 288048