[PATCH] D39872: Add a wrapper function to set branch weights metadata.

[Easwaran Raman via Phabricator via llvm-commits]

eraman created this revision.

This wrapper checks if there is at least one non-zero weight before
setting the metadata.


https://reviews.llvm.org/D39872

Files:
  lib/Transforms/Utils/SimplifyCFG.cpp
  test/Transforms/SimplifyCFG/suppress-zero-branch-weights.ll

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