[all-commits] [llvm/llvm-project] 6e687f: [MIR][AMDGPU] Serialize register allocation anti-h...

[Syadus Sefat via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6e687f8dea8825c52fc6f31459dabb0ee0c1d4bd
      https://github.com/llvm/llvm-project/commit/6e687f8dea8825c52fc6f31459dabb0ee0c1d4bd
  Author: Syadus Sefat <42645939+mssefat at users.noreply.github.com>
  Date:   2026-09-24 (Thu, 24 Sep 2026)

  Changed paths:
    M llvm/include/llvm/CodeGen/MIRParser/MIParser.h
    M llvm/include/llvm/CodeGen/MIRYamlMapping.h
    M llvm/lib/CodeGen/MIRParser/MIRParser.cpp
    M llvm/lib/CodeGen/MIRPrinter.cpp
    A llvm/test/CodeGen/MIR/AMDGPU/register-allocation-antihints-mir-print-parse.mir

  Log Message:
  -----------
  [MIR][AMDGPU] Serialize register allocation anti-hints (#218073)

This PR adds MIR print and parse support for the register allocation
anti-hints through
a per vreg anti-hints: [ .. ] field in the registers: section. The
printer only emits
the anti-hint registers only when the it is non-empty to keep existing
tests unchanged.
## Stack
PR **2/4**. Depends on #218071. Next: Apply Occupancy-Aware allocation
anti-hints #218074.



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