[all-commits] [llvm/llvm-project] c7a0c2: AMDGPU: Report large stack usage for recursive calls

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c7a0c2d0f7be2f456bd72b5c3508966d5b10233b
      https://github.com/llvm/llvm-project/commit/c7a0c2d0f7be2f456bd72b5c3508966d5b10233b
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2021-11-10 (Wed, 10 Nov 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUResourceUsageAnalysis.cpp
    M llvm/test/CodeGen/AMDGPU/call-graph-register-usage.ll
    A llvm/test/CodeGen/AMDGPU/recursion.ll

  Log Message:
  -----------
  AMDGPU: Report large stack usage for recursive calls

We were previously setting an ignored bit in the kernel headers. The
current behavior is to add the large amount on top of the statically
known size of a single stack frame. I'm not sure if we should just use
the large size as the entire reported size instead.