[all-commits] [llvm/llvm-project] 872932: [InstCombine] Generalize `icmp (shl nuw C2, Y), C ...

[Yingwei Zheng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 872932b7a9539b0f0b62805f339bef62c94fd52d
      https://github.com/llvm/llvm-project/commit/872932b7a9539b0f0b62805f339bef62c94fd52d
  Author: Yingwei Zheng <dtcxzyw2333 at gmail.com>
  Date:   2024-09-18 (Wed, 18 Sep 2024)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
    M llvm/test/Transforms/InstCombine/icmp-shl-nuw.ll

  Log Message:
  -----------
  [InstCombine] Generalize `icmp (shl nuw C2, Y), C -> icmp Y, C3` (#104696)

The motivation of this patch is to fold more generalized patterns like
`icmp ult (shl nuw 16, X), 64 -> icmp ult X, 2`.

Alive2: https://alive2.llvm.org/ce/z/gyqjQH



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications