[all-commits] [llvm/llvm-project] 748db5: [AMDGPU] Fix module LDS selection

[Stanislav Mekhanoshin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 748db5bfacf1f81f65e8c052459ed3eca6aa18c8
      https://github.com/llvm/llvm-project/commit/748db5bfacf1f81f65e8c052459ed3eca6aa18c8
  Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
  Date:   2021-05-20 (Thu, 20 May 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULowerModuleLDSPass.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.cpp
    M llvm/test/CodeGen/AMDGPU/lower-module-lds-constantexpr.ll
    M llvm/test/CodeGen/AMDGPU/lower-module-lds-indirect.ll
    A llvm/test/CodeGen/AMDGPU/lower-module-lds-offsets.ll
    M llvm/test/CodeGen/AMDGPU/lower-module-lds-used-list.ll
    M llvm/test/CodeGen/AMDGPU/lower-module-lds.ll

  Log Message:
  -----------
  [AMDGPU] Fix module LDS selection

Accesses to global module LDS variable start from null,
but kernel also thinks its variables start address is
null. Fixed by not using a null as an address.

Differential Revision: https://reviews.llvm.org/D102882