[all-commits] [llvm/llvm-project] a3daa3: [AMDGPU] Unify early PS termination blocks

[Carl Ritson via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: a3daa3f75a01101790f39fb9d52bf1f8824655c9
      https://github.com/llvm/llvm-project/commit/a3daa3f75a01101790f39fb9d52bf1f8824655c9
  Author: Carl Ritson <carl.ritson at amd.com>
  Date:   2020-07-03 (Fri, 03 Jul 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
    M llvm/lib/Target/AMDGPU/SIInsertSkips.cpp
    M llvm/test/CodeGen/AMDGPU/insert-skips-kill-uncond.mir
    M llvm/test/CodeGen/AMDGPU/skip-if-dead.ll

  Log Message:
  -----------
  [AMDGPU] Unify early PS termination blocks

Generate a single early exit block out-of-line and branch to this
if all lanes are killed. This avoids branching if lanes are active.

Reviewed By: nhaehnle

Differential Revision: https://reviews.llvm.org/D82641