[all-commits] [llvm/llvm-project] 2176be: [ARM] Guard against loop variant gather ptr operands

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2176be556b448361a35c01cfedd5d3fd54b3e2b9
      https://github.com/llvm/llvm-project/commit/2176be556b448361a35c01cfedd5d3fd54b3e2b9
  Author: David Green <david.green at arm.com>
  Date:   2021-05-30 (Sun, 30 May 2021)

  Changed paths:
    M llvm/lib/Target/ARM/MVEGatherScatterLowering.cpp
    M llvm/test/CodeGen/Thumb2/mve-gather-optimisation-deep.ll

  Log Message:
  -----------
  [ARM] Guard against loop variant gather ptr operands

This ensures that the operands of any gather/scatter instructions that
we attempt to push out of the loop are invariant, preventing invalid IR
from being generated.