[PATCH] D154791: [InstCombine] Transform bitwise (A << X, zext(icmp)) -> zext (bitwise(A < 0, icmp)) fold.

[Noah Goldstein via Phabricator via llvm-commits]

goldstein.w.n added inline comments.


================
Comment at: llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp:1723
+    bool IsMatched =
+        match(Op0, m_LShr(m_Value(A),
+                          m_SpecificInt(Op0->getType()->getScalarSizeInBits() - 1))) &&
----------------
`lshr`? The comments are all `shl`. Can you clarify one of them (looks like comments/summary is wrong).


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D154791/new/

https://reviews.llvm.org/D154791