[libc] [llvm] [llvm] Add KnownBits implementations for avgFloor and avgCeil (PR #86445)

[Jay Foad via llvm-commits]

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@@ -1136,4 +1162,4 @@ void KnownBits::print(raw_ostream &OS) const {
 void KnownBits::dump() const {
   print(dbgs());
   dbgs() << "\n";
-}
+}
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jayfoad wrote:

Missing newline at end of file.

https://github.com/llvm/llvm-project/pull/86445