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0a170eb786
When an instruction is determined to be divergent, not all its outputs are divergent. The users of only divergent outputs should now be examined for divergence. Also, replaced a repeating pattern of "if new divergent instruction, then add to worklist" by combining it into a single function. This does not cause any change in functionality. Reviewed By: foad, arsenm Differential Revision: https://reviews.llvm.org/D150636
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