[all-commits] [llvm/llvm-project] ed9643: [SCCP] Infer nneg on existing zext (#72143)

[Yingwei Zheng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ed96430402aec669bfa36ecd2365ad47fe6b73e5
      https://github.com/llvm/llvm-project/commit/ed96430402aec669bfa36ecd2365ad47fe6b73e5
  Author: Yingwei Zheng <dtcxzyw2333 at gmail.com>
  Date:   2023-11-14 (Tue, 14 Nov 2023)

  Changed paths:
    M llvm/lib/Transforms/Utils/SCCPSolver.cpp
    M llvm/test/Transforms/SCCP/ip-ranges-casts.ll
    M llvm/test/Transforms/SCCP/ipsccp-range-crashes.ll

  Log Message:
  -----------
  [SCCP] Infer nneg on existing zext (#72143)

This patch infers `nneg` flags for existing zext instructions in SCCP.

Similar patch: https://github.com/llvm/llvm-project/pull/72052