[all-commits] [llvm/llvm-project] 929edd: [AMDGPU] Mark scavenged SGPR as used

[Sebastian Neubauer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 929edd4375a40fcf264426ac4f2b3d8fa9c72970
      https://github.com/llvm/llvm-project/commit/929edd4375a40fcf264426ac4f2b3d8fa9c72970
  Author: Sebastian Neubauer <sebastian.neubauer at amd.com>
  Date:   2021-04-14 (Wed, 14 Apr 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
    M llvm/test/CodeGen/AMDGPU/sgpr-spill.mir
    M llvm/test/CodeGen/AMDGPU/spill-scavenge-offset.ll

  Log Message:
  -----------
  [AMDGPU] Mark scavenged SGPR as used

Otherwise it reuses the same register for storing the stack slot
offset if the stack slot offset is big.

Differential Revision: https://reviews.llvm.org/D100461