[all-commits] [llvm/llvm-project] 73d9f5: [AMDGPU] Add test for GCNRegPressure tracker bug (...

Piotr Sobczak via All-commits all-commits at lists.llvm.org
Thu Nov 30 07:26:58 PST 2023


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 73d9f5fda6648a9c75a265524da29bac061fb155
      https://github.com/llvm/llvm-project/commit/73d9f5fda6648a9c75a265524da29bac061fb155
  Author: Piotr Sobczak <piotr.sobczak at amd.com>
  Date:   2023-11-30 (Thu, 30 Nov 2023)

  Changed paths:
    M llvm/test/CodeGen/AMDGPU/regpressure_printer.mir

  Log Message:
  -----------
  [AMDGPU] Add test for GCNRegPressure tracker bug (#73786)

Add a test to document an existing problem in GCNRegPressure tracker.

The upward tracker does not count the registers used (16 of them) in
movrel instruction (for example V_INDIRECT_REG_WRITE_MOVREL_B32_V16).

The downward tracker counts the registers but reports a mismatch:
%0:L0000000000000C00 isn't found in LIS reported set




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