[PATCH] D24280: [IndVarSimplify] Wisely choose sext or zext when widening IV

[Li Huang via llvm-commits]

lihuang updated this revision to Diff 72548.
lihuang marked 10 inline comments as done.

https://reviews.llvm.org/D24280

Files:
  lib/Transforms/Scalar/IndVarSimplify.cpp
  test/Transforms/IndVarSimplify/iv-widen-elim-ext.ll

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