[all-commits] [llvm/llvm-project] 9d8a23: [BasicAA] Check for Overflow using vscale_range (#...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9d8a236164082a6d92a58eaafce1f733ce2e81a7
      https://github.com/llvm/llvm-project/commit/9d8a236164082a6d92a58eaafce1f733ce2e81a7
  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] Check for Overflow using vscale_range (#81144)

This extends #80818 when IsNSW is lost (possibly due to looking through
multiple GEPs), to check the vscale_range for an access that will not
overflow even with the maximum range.