[all-commits] [llvm/llvm-project] 983691: [SelectionDAGBuilder] Don't set MachinePointerInfo...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 98369178bc695ba5d64314beb62d5ba5c9f14e2e
      https://github.com/llvm/llvm-project/commit/98369178bc695ba5d64314beb62d5ba5c9f14e2e
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2020-03-17 (Tue, 17 Mar 2020)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

  Log Message:
  -----------
  [SelectionDAGBuilder] Don't set MachinePointerInfo for gather when we find a uniform base

I believe we were previously calculating a pointer info with the scalar base and an offset of 0. But that's not really where the gather is pointing. The offset is a function of the indices of the GEP we looked through.

Also set the size of the MachineMemOperand to UnknownSize

Differential Revision: https://reviews.llvm.org/D76157