[PATCH] D52508: [InstCombine] Clean up after IndVarSimplify

[Dave Green via Phabricator via llvm-commits]

dmgreen updated this revision to Diff 168982.
dmgreen edited the summary of this revision.
dmgreen added a reviewer: lebedev.ri.
dmgreen added a comment.

I've taken the demand parts parts out of this, and added some extra tests for the do / while and signed /unsigned cases.

This patch gets us the unsigned while case, and a lot of the signed while case. Like I said, it can split up max's though.


https://reviews.llvm.org/D52508

Files:
  lib/Transforms/InstCombine/InstCombineAddSub.cpp
  test/Transforms/IndVarSimplify/replace-loop-exit-folds.ll
  test/Transforms/InstCombine/add-select.ll

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