[all-commits] [llvm/llvm-project] 5e6b4b: [BasicAA] Treat different VScale intrinsics as the...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5e6b4be5cbddbc7538cdae0f0889b116e386fcca
      https://github.com/llvm/llvm-project/commit/5e6b4be5cbddbc7538cdae0f0889b116e386fcca
  Author: David Green <david.green at arm.com>
  Date:   2024-02-12 (Mon, 12 Feb 2024)

  Changed paths:
    M llvm/lib/Analysis/BasicAliasAnalysis.cpp
    M llvm/test/Analysis/BasicAA/vscale.ll

  Log Message:
  -----------
  [BasicAA] Treat different VScale intrinsics as the same value. (#81152)

The IR may contain multiple llvm.vscale intrinsics that have not been CSEd.
This patch ensures that multiple vscales can be treated the same, either in the
decomposition of geps and when we subtract one decomposition from another.