[all-commits] [llvm/llvm-project] ac8a2f: [AMDGPU] Fix failure in VCC spilling

[Carl Ritson via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: ac8a2f132b010f92e4094b302c87e4f55d1a4458
      https://github.com/llvm/llvm-project/commit/ac8a2f132b010f92e4094b302c87e4f55d1a4458
  Author: Carl Ritson <carl.ritson at amd.com>
  Date:   2020-06-17 (Wed, 17 Jun 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
    A llvm/test/CodeGen/AMDGPU/spill-special-sgpr.mir

  Log Message:
  -----------
  [AMDGPU] Fix failure in VCC spilling

Spills of VCC (SGPR64) will fail with new SGPR spill code,
because super register is not correctly resolved.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D81224