[all-commits] [llvm/llvm-project] 2b9527: [hexagon] Add support for llvm.thread.pointer (#14...

[Brian Cain via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2b952753f8392a789debb9d8e2544f37b4d76f65
      https://github.com/llvm/llvm-project/commit/2b952753f8392a789debb9d8e2544f37b4d76f65
  Author: Brian Cain <brian.cain at oss.qualcomm.com>
  Date:   2025-07-15 (Tue, 15 Jul 2025)

  Changed paths:
    M llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
    M llvm/lib/Target/Hexagon/HexagonISelLowering.h
    M llvm/lib/Target/Hexagon/HexagonPatterns.td
    A llvm/test/CodeGen/Hexagon/thread-pointer.ll

  Log Message:
  -----------
  [hexagon] Add support for llvm.thread.pointer (#148752)

UGP contains the pointer for thread data: 

> The TLS area is accessed at the processor level through the special
register UGP This register is set to the address one location above the
TLS area, which grows downwards from UGP.

>From the Hexagon ABI spec -
https://docs.qualcomm.com/bundle/publicresource/80-N2040-23_REV_K_Qualcomm_Hexagon_Application_Binary_Interface_User_Guide.pdf

Also: disable clang-format for `NodeType` enum in
`llvm/lib/Target/Hexagon/HexagonISelLowering.h` to avoid disruptive
formatting.



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