[all-commits] [llvm/llvm-project] 5d38cd: [Clang] Add __scoped_atomic_uinc_wrap and __scoped...

[Wenju He via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5d38cddc3b00b428f848fdeddc8334c4560db36a
      https://github.com/llvm/llvm-project/commit/5d38cddc3b00b428f848fdeddc8334c4560db36a
  Author: Wenju He <wenju.he at intel.com>
  Date:   2025-11-26 (Wed, 26 Nov 2025)

  Changed paths:
    M clang/docs/LanguageExtensions.rst
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/Builtins.td
    M clang/lib/AST/Expr.cpp
    M clang/lib/CodeGen/CGAtomic.cpp
    M clang/lib/Sema/SemaChecking.cpp
    M clang/test/CodeGen/scoped-atomic-ops.c
    M clang/test/Sema/scoped-atomic-ops.c

  Log Message:
  -----------
  [Clang] Add __scoped_atomic_uinc_wrap and __scoped_atomic_udec_wrap builtins (#168666)

This PR extends __scoped_atomic builtins with inc and dec functions.
They map to LLVM IR `atomicrmw uinc_wrap` and `atomicrmw udec_wrap`.
These enable implementation of OpenCL-style atomic_inc / atomic_dec with
wrap semantics on targets supporting scoped atomics (e.g. GPUs).

---------

Co-authored-by: Copilot <175728472+Copilot at users.noreply.github.com>



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