[all-commits] [llvm/llvm-project] 364b97: [AMDGPU][True16][CodeGen] 16bit spill support in t...

[Brox Chen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 364b97f23b4de7732179023220ff23a24bec4919
      https://github.com/llvm/llvm-project/commit/364b97f23b4de7732179023220ff23a24bec4919
  Author: Brox Chen <guochen2 at amd.com>
  Date:   2025-02-26 (Wed, 26 Feb 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
    M llvm/lib/Target/AMDGPU/SIInstructions.td
    M llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
    A llvm/test/CodeGen/AMDGPU/spill_kill_v16.mir
    A llvm/test/CodeGen/AMDGPU/spillv16.ll
    A llvm/test/CodeGen/AMDGPU/spillv16.mir

  Log Message:
  -----------
  [AMDGPU][True16][CodeGen] 16bit spill support in true16 mode (#128060)

Enables 16-bit values to be spilled to scratch.

Note, the memory instructions used are defined as reading and writing
VGPR_32, but do not clobber the unspecified 16-bits of those registers,
and so spills and reloads of lo and hi halves of the registers work.



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