[PATCH] D43970: [InstCombine] Allow fptrunc (fpext X)) to be reduced to a single fpext/ftrunc

[Craig Topper via Phabricator via llvm-commits]

craig.topper updated this revision to Diff 136621.
craig.topper added a comment.

Add directed tests


https://reviews.llvm.org/D43970

Files:
  lib/IR/Instructions.cpp
  test/Transforms/InstCombine/double-float-shrink-2.ll
  test/Transforms/InstCombine/fpextend.ll

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