[all-commits] [llvm/llvm-project] 11b7ee: [AMDGPU] Avoid assert for saved FP

[Stanislav Mekhanoshin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 11b7ee974a69cabb379b12ce62a808594a53ef95
      https://github.com/llvm/llvm-project/commit/11b7ee974a69cabb379b12ce62a808594a53ef95
  Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
  Date:   2021-08-25 (Wed, 25 Aug 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIFrameLowering.cpp
    A llvm/test/CodeGen/AMDGPU/save-fp.ll

  Log Message:
  -----------
  [AMDGPU] Avoid assert for saved FP

With spilling into AGPRs enabled we cannot reliably predict
if we need to save FP or not. We may finally spill everything
into AGPRs and never touch stack. In this case we still may
save FP. This is deficiency but not an error, so avoid the
assert.

Differential Revision: https://reviews.llvm.org/D107404