[all-commits] [llvm/llvm-project] 489ca7: [PrologEpilogInserter][AMDGPU] Only adjust offset ...

[Roger Ferrer Ibáñez via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 489ca73ac4974a092f5e8f0bb32b0b8872b31bf9
      https://github.com/llvm/llvm-project/commit/489ca73ac4974a092f5e8f0bb32b0b8872b31bf9
  Author: Roger Ferrer Ibanez <roger.ferrer at bsc.es>
  Date:   2021-03-29 (Mon, 29 Mar 2021)

  Changed paths:
    M llvm/lib/CodeGen/PrologEpilogInserter.cpp
    M llvm/test/CodeGen/AMDGPU/pei-scavenge-vgpr-spill.mir

  Log Message:
  -----------
  [PrologEpilogInserter][AMDGPU] Only adjust offset for emergency spill slots if the stack grows down

D89239 adjusts the stack offset of emergency spill slots for overaligned
stacks. However the adjustment is not valid for targets whose stack
grows up (such as AMDGPU).

This change makes the adjustment conditional only to those targets whose
stack grows down.

Fixes https://bugs.llvm.org/show_bug.cgi?id=49686

Differential Revision: https://reviews.llvm.org/D99504