[all-commits] [llvm/llvm-project] 7e35cb: [NVPTX] Cleanup PTX virtual register encoding (NFC...

[Alex MacLean via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7e35cbb1b6f5915ab732a22e83b3afc20e29181a
      https://github.com/llvm/llvm-project/commit/7e35cbb1b6f5915ab732a22e83b3afc20e29181a
  Author: Alex MacLean <amaclean at nvidia.com>
  Date:   2026-07-30 (Thu, 30 Jul 2026)

  Changed paths:
    M llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXBaseInfo.h
    M llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXInstPrinter.cpp
    M llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
    M llvm/lib/Target/NVPTX/NVPTXAsmPrinter.h
    M llvm/lib/Target/NVPTX/NVPTXRegisterInfo.cpp
    M llvm/lib/Target/NVPTX/NVPTXRegisterInfo.h

  Log Message:
  -----------
  [NVPTX] Cleanup PTX virtual register encoding (NFC) (#212395)

Unify the scheme used to carry PTX virtual registers through
`MCOperand`s. The register class was encoded and decoded 
by two hand-written switchtables, one in
`NVPTXAsmPrinter::encodeVirtualRegister` and one in
`NVPTXInstPrinter::printRegName`, kept in sync only by
comment. Both now share a `VirtualRegisterKind` enum and
`getVirtualRegisterPrefix` in `NVPTXBaseInfo.h`, which also
subsumes `getNVPTXRegClassStr` and drops the stale
`%f`/`%fd` cases left over from the typed float register
classes.

Co-Authored by Opus-5.



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