[PATCH] D39345: SCEV: preserve debug information attached to PHI nodes.

[Adrian Prantl via Phabricator via llvm-commits]

aprantl created this revision.
Herald added a subscriber: sanjoy.

This is a work-in-progress fix for one part of PR35015.

      

https://bugs.llvm.org/show_bug.cgi?id=35015


https://reviews.llvm.org/D39345

Files:
  lib/Analysis/ScalarEvolutionExpander.cpp
  test/Transforms/IndVarSimplify/scev-phi-debug-info.ll

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