[PATCH] D14738: Reimplement discriminator assignment algorithm.

[Dehao Chen via llvm-commits]

danielcdh created this revision.
danielcdh added reviewers: dnovillo, dblaikie, davidxl.
danielcdh added a subscriber: llvm-commits.

The new algorithm is more efficient (O(n), n is number of basic blocks). And it is guaranteed to cover all cases of multiple BB mapped to same line.

http://reviews.llvm.org/D14738

Files:
  lib/Transforms/Utils/AddDiscriminators.cpp
  test/Transforms/AddDiscriminators/diamond.ll
  test/Transforms/AddDiscriminators/oneline.ll

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