[all-commits] [llvm/llvm-project] 091bfa: [AMDGPU] Use SSAUpdater in PromoteAlloca

[Pierre van Houtryve via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 091bfa76db64fbe96d0e53d99b2068cc05f6aa16
      https://github.com/llvm/llvm-project/commit/091bfa76db64fbe96d0e53d99b2068cc05f6aa16
  Author: pvanhout <pierre.vanhoutryve at amd.com>
  Date:   2023-06-28 (Wed, 28 Jun 2023)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp
    M llvm/test/CodeGen/AMDGPU/fix-frame-reg-in-custom-csr-spills.ll
    M llvm/test/CodeGen/AMDGPU/promote-alloca-array-aggregate.ll
    M llvm/test/CodeGen/AMDGPU/promote-alloca-globals.ll
    M llvm/test/CodeGen/AMDGPU/promote-alloca-memset.ll
    M llvm/test/CodeGen/AMDGPU/promote-alloca-pointer-array.ll
    M llvm/test/CodeGen/AMDGPU/promote-alloca-vector-to-vector.ll
    M llvm/test/CodeGen/AMDGPU/sroa-before-unroll.ll
    M llvm/test/CodeGen/AMDGPU/vector-alloca-bitcast.ll

  Log Message:
  -----------
  [AMDGPU] Use SSAUpdater in PromoteAlloca

This allows PromoteAlloca to not be reliant on a second SROA run to remove the alloca completely. It just does the full transformation directly.

Note PromoteAlloca is still reliant on SROA running first to
canonicalize the IR. For instance, PromoteAlloca will no longer handle aggregate types because those should be simplified by SROA before reaching the pass.

Reviewed By: #amdgpu, arsenm

Differential Revision: https://reviews.llvm.org/D152706