[all-commits] [llvm/llvm-project] f8e615: [AMDGPU] Fix SIPostRABundler crash on null registe...

[Stanislav Mekhanoshin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f8e615462b4f1376674530cc55ab6b8993cec726
      https://github.com/llvm/llvm-project/commit/f8e615462b4f1376674530cc55ab6b8993cec726
  Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
  Date:   2021-11-18 (Thu, 18 Nov 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIPostRABundler.cpp
    M llvm/test/CodeGen/AMDGPU/postra-bundle-memops.mir

  Log Message:
  -----------
  [AMDGPU] Fix SIPostRABundler crash on null register used by dbg value

Recently we started generate DBG_VALUEs with $noreg operands.
This crashes SIPostRABundler, and it should not iterate these
registers anyway.

Fixes: SWDEV-311733

Differential Revision: https://reviews.llvm.org/D114202