[all-commits] [llvm/llvm-project] 5cabf1: [KnownBits] Make `avg{Ceil, Floor}S` optimal (#110688)

[Jay Foad via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5cabf1505d2180083ae3cf34abd79924cbcdbdbf
      https://github.com/llvm/llvm-project/commit/5cabf1505d2180083ae3cf34abd79924cbcdbdbf
  Author: Jay Foad <jay.foad at amd.com>
  Date:   2024-10-01 (Tue, 01 Oct 2024)

  Changed paths:
    M llvm/include/llvm/Support/KnownBits.h
    M llvm/lib/Support/KnownBits.cpp
    M llvm/unittests/Support/KnownBitsTest.cpp

  Log Message:
  -----------
  [KnownBits] Make `avg{Ceil,Floor}S` optimal (#110688)

Rewrite the signed functions in terms of the unsigned ones which are
already optimal.



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