[all-commits] [llvm/llvm-project] 7f2a64: [AMDGPU] Insert waterfall loops for divergent calls

[Sebastian Neubauer via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 7f2a641aad28fd9b15fa1bcae1dd496150638d79
      https://github.com/llvm/llvm-project/commit/7f2a641aad28fd9b15fa1bcae1dd496150638d79
  Author: Sebastian Neubauer <sebastian.neubauer at amd.com>
  Date:   2020-10-12 (Mon, 12 Oct 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
    M llvm/test/CodeGen/AMDGPU/indirect-call.ll

  Log Message:
  -----------
  [AMDGPU] Insert waterfall loops for divergent calls

Extend loadSRsrcFromVGPR to allow moving a range of instructions into
the loop. The call instruction is surrounded by copies into physical
registers which should be part of the waterfall loop.

Differential Revision: https://reviews.llvm.org/D88291