[all-commits] [llvm/llvm-project] d3dda4: [amdgpu][nfc] Replace ad hoc LDS frame recalculati...

[Jon Chesterfield via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d3dda422bfd1dc281df944b4a07bcd6816e2ee94
      https://github.com/llvm/llvm-project/commit/d3dda422bfd1dc281df944b4a07bcd6816e2ee94
  Author: Jon Chesterfield <jonathanchesterfield at gmail.com>
  Date:   2023-03-12 (Sun, 12 Mar 2023)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULowerModuleLDSPass.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.h
    M llvm/test/CodeGen/AMDGPU/lower-kernel-and-module-lds.ll
    M llvm/test/CodeGen/AMDGPU/lower-kernel-lds.ll
    M llvm/test/CodeGen/AMDGPU/lower-lds-struct-aa-memcpy.ll
    M llvm/test/CodeGen/AMDGPU/lower-lds-struct-aa-merge.ll
    M llvm/test/CodeGen/AMDGPU/lower-lds-struct-aa.ll
    M llvm/test/CodeGen/AMDGPU/lower-module-lds-single-var-unambiguous.ll
    M llvm/test/CodeGen/AMDGPU/lower-module-lds-via-hybrid.ll
    M llvm/test/CodeGen/AMDGPU/lower-module-lds-via-table.ll

  Log Message:
  -----------
  [amdgpu][nfc] Replace ad hoc LDS frame recalculation with absolute_symbol MD

Post ISel, LDS variables are absolute values. Representing them as
such is simpler than the frame recalculation currently used to build assembler
tables from their addresses.

This is a precursor to lowering dynamic/external LDS accesses from non-kernel
functions.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D144221