[all-commits] [llvm/llvm-project] fe5f4c: [AMDGPU] Rename SIInsertSkips Pass

[Carl Ritson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fe5f4c397f029b66a541b25d4749496785f2d4f5
      https://github.com/llvm/llvm-project/commit/fe5f4c397f029b66a541b25d4749496785f2d4f5
  Author: Carl Ritson <carl.ritson at amd.com>
  Date:   2021-03-20 (Sat, 20 Mar 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPU.h
    M llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
    M llvm/lib/Target/AMDGPU/CMakeLists.txt
    R llvm/lib/Target/AMDGPU/SIInsertSkips.cpp
    A llvm/lib/Target/AMDGPU/SILateBranchLowering.cpp
    M llvm/lib/Target/AMDGPU/SIPreEmitPeephole.cpp
    M llvm/test/CodeGen/AMDGPU/early-term.mir
    M llvm/test/CodeGen/AMDGPU/kill-infinite-loop.ll
    M llvm/test/CodeGen/AMDGPU/readlane_exec0.mir
    M llvm/test/CodeGen/AMDGPU/shrink-carry.mir
    M llvm/test/CodeGen/AMDGPU/syncscopes.ll
    M llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn

  Log Message:
  -----------
  [AMDGPU] Rename SIInsertSkips Pass

Pass no longer handles skips.  Pass now removes unnecessary
unconditional branches and lowers early termination branches.
Hence rename to SILateBranchLowering.

Move code to handle returns to epilog from SIPreEmitPeephole
into SILateBranchLowering. This means SIPreEmitPeephole only
contains optional optimisations, and all required transforms
are in SILateBranchLowering.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D98915