[PATCH] D85053: [InstSimplify] Fold abs(abs(x)) -> abs(x)

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

Will need update after:
rG04b99a4d18cf <https://reviews.llvm.org/rG04b99a4d18cf13c13f1d76c5698696bcaef4e4b6>



================
Comment at: llvm/lib/Analysis/InstructionSimplify.cpp:5262
+    // on the outer abs.
+    if (auto *II = dyn_cast<IntrinsicInst>(Op0))
+      if (II->getIntrinsicID() == IID)
----------------
Could use match here to make this slightly more obvious:
    if (match(Op0, m_Intrinsic<Intrinsic::abs>(m_Value(), m_Value())))
      return Op0;



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  https://reviews.llvm.org/D85053/new/

https://reviews.llvm.org/D85053