[all-commits] [llvm/llvm-project] 03d925: [AMDGPU] Enable Atomic Optimizer and Default to It...

[Pravin Jagtap via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 03d92501f385bac5d0b25742b9f368a90e103621
      https://github.com/llvm/llvm-project/commit/03d92501f385bac5d0b25742b9f368a90e103621
  Author: Pravin Jagtap <Pravin.Jagtap at amd.com>
  Date:   2023-06-15 (Thu, 15 Jun 2023)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/mubuf-global.ll
    M llvm/test/CodeGen/AMDGPU/atomic_optimizations_pixelshader.ll
    M llvm/test/CodeGen/AMDGPU/buffer-intrinsics-mmo-offsets.ll
    M llvm/test/CodeGen/AMDGPU/dag-divergence-atomic.ll
    M llvm/test/CodeGen/AMDGPU/gds-allocation.ll
    M llvm/test/CodeGen/AMDGPU/llc-pipeline.ll
    M llvm/test/CodeGen/AMDGPU/noclobber-barrier.ll
    M llvm/test/CodeGen/AMDGPU/should-not-hoist-set-inactive.ll

  Log Message:
  -----------
  [AMDGPU] Enable Atomic Optimizer and Default to Iterative Scan Strategy.

The D147408 implemented new Iterative approach for scan computations
and  added new flag `amdgpu-atomic-optimizer-strategy` which is
defaulted to DPP.

The changeset https://github.com/GPUOpen-Drivers/llpc/pull/2506
adapts to the new changes in LLPC.

This patch enables atomic optimizer pass and selects Iterative
approach for scan computations by default for compute pipeline.

Reviewed By: foad

Differential Revision: https://reviews.llvm.org/D152649