[PATCH] D129958: [IndVars] Eliminate redundant type cast with different sizes

[Allen zhong via Phabricator via llvm-commits]

Allen updated this revision to Diff 450768.
Allen added a comment.

If one of them is unsigned, then we can use zext


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D129958/new/

https://reviews.llvm.org/D129958

Files:
  llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
  llvm/test/Transforms/IndVarSimplify/floating-point-iv.ll
  llvm/test/Transforms/IndVarSimplify/floating-point-small-iv.ll

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