[all-commits] [llvm/llvm-project] 61332c: [AMDGPU] Emit backend_stack_size PAL metadata (#72...

[Diana via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 61332cb047faca2dffce9a0ae68bf0d1c0cdee39
      https://github.com/llvm/llvm-project/commit/61332cb047faca2dffce9a0ae68bf0d1c0cdee39
  Author: Diana <Diana-Magda.Picus at amd.com>
  Date:   2023-11-20 (Mon, 20 Nov 2023)

  Changed paths:
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUPALMetadata.cpp
    M llvm/test/CodeGen/AMDGPU/amdpal-callable.ll
    A llvm/test/CodeGen/AMDGPU/amdpal-chain-metadata.ll

  Log Message:
  -----------
  [AMDGPU] Emit backend_stack_size PAL metadata (#72509)

For chain functions, PAL uses a `backend_stack_size` metadata item,
which at the moment has the same meaning as `stack_frame_size_in_bytes`.
We emit both for now in order to simplify coordination with PAL.

The new item must be emitted in the `shader_functions` section, just as
the metadata for other module entry functions. For simplicity, we mark
chain functions as module entry functions and emit the same metadata for
all of them.