[PATCH] D58650: Add support for computing "zext of value" in KnownBits. NFCI

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


================
Comment at: llvm/include/llvm/Support/KnownBits.h:123
+    APInt NewZero = Zero.zext(BitWidth);
+    if (ExtendedBitsAreKnownZero)
+      NewZero.setBitsFrom(OldBitWidth);
----------------
if (BitWidth > OldBitWidth && ExtendedBitsAreKnownZero)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D58650/new/

https://reviews.llvm.org/D58650