[all-commits] [llvm/llvm-project] 7feafa: [ARM] Fix pointer offset when splitting stores fro...

[David Green via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 7feafa0286f1f5e059d70a9a9f4168f32db3b444
      https://github.com/llvm/llvm-project/commit/7feafa0286f1f5e059d70a9a9f4168f32db3b444
  Author: David Green <david.green at arm.com>
  Date:   2020-10-03 (Sat, 03 Oct 2020)

  Changed paths:
    M llvm/lib/Target/ARM/ARMISelLowering.cpp
    M llvm/test/CodeGen/Thumb2/vmovdrroffset.ll

  Log Message:
  -----------
  [ARM] Fix pointer offset when splitting stores from VMOVDRR

We were not accounting for the pointer offset when splitting a store from
a VMOVDRR node, which could lead to incorrect aliasing info. In this
case it is the fneg via integer arithmetic that gives us a store->load
pair that we started getting wrong.

Differential Revision: https://reviews.llvm.org/D88653