[PATCH] D98866: [KnownBits] Add knownbits analysis for mulhs/mulu 'multiply high' instructions

[Nikita Popov via Phabricator via llvm-commits]

nikic added inline comments.


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Comment at: llvm/lib/Support/KnownBits.cpp:498
+  KnownBits WideRHS = RHS.sext(2 * BitWidth);
+  return computeForMul(WideLHS, WideRHS).extractBits(BitWidth, BitWidth);
+}
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Side note, we should rename computeForMul -> mul.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D98866/new/

https://reviews.llvm.org/D98866