[all-commits] [llvm/llvm-project] 3f5c25: [clang] Implement C2y stdc_memreverse8 and stdc_me...

[NagaChaitanya Vellanki via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3f5c25fbe2d87e197b137bd8287715f120f11275
      https://github.com/llvm/llvm-project/commit/3f5c25fbe2d87e197b137bd8287715f120f11275
  Author: NagaChaitanya Vellanki <pnagato at protonmail.com>
  Date:   2026-06-08 (Mon, 08 Jun 2026)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/Builtins.def
    M clang/include/clang/Basic/Builtins.td
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/lib/AST/ASTContext.cpp
    M clang/lib/AST/ByteCode/InterpBuiltin.cpp
    M clang/lib/AST/ExprConstant.cpp
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/lib/Sema/SemaChecking.cpp
    M clang/test/CodeGen/Inputs/stdbit.h
    A clang/test/CodeGen/builtin-stdc-memreverse8.c
    M clang/test/Sema/Inputs/stdbit.h
    A clang/test/Sema/builtin-stdc-memreverse8.c
    M clang/test/TableGen/target-builtins-prototype-parser.td
    M clang/utils/TableGen/ClangBuiltinsEmitter.cpp

  Log Message:
  -----------
  [clang] Implement C2y stdc_memreverse8 and stdc_memreverse8u{8,16,32,64} builtins (#197358)

Implements the C2y <stdbit.h> memory reversal functions stdc_memreverse8
and stdc_memreverse8u{8,16,32,64}. The typed variants lower to
llvm.bswap and support constexpr evaluation.



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