[all-commits] [llvm/llvm-project] 3ffb75: [InstCombine] fold copysign with fabs/fneg operand

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  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 3ffb751f3dbf059b2ec061fe2f4302c9eba26b43
      https://github.com/llvm/llvm-project/commit/3ffb751f3dbf059b2ec061fe2f4302c9eba26b43
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2020-08-16 (Sun, 16 Aug 2020)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
    M llvm/test/Transforms/InstCombine/copysign.ll

  Log Message:
  -----------
  [InstCombine] fold copysign with fabs/fneg operand

We already get this in the backend, but we need to do
it in IR too to consistently get yet more copysign
transforms.