[PATCH] D124211: Add __builtin_call_kcfi_unchecked

[Sami Tolvanen via Phabricator via cfe-commits]

samitolvanen created this revision.
samitolvanen added reviewers: aaron.ballman, pcc, nickdesaulniers, ardb, kees, joaomoreira.
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With `-fsanitize=kcfi`, disabling indirect call checking using
the `no_sanitize` attribute is not fine-grained enough in cases
where we want to disable checking only for specific calls. The
`__builtin_call_kcfi_unchecked` builtin accepts an indirect call
expression and emits the call without KCFI type checking.

Depends on D119296 <https://reviews.llvm.org/D119296>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124211

Files:
  clang/docs/LanguageExtensions.rst
  clang/include/clang/AST/Expr.h
  clang/include/clang/AST/Stmt.h
  clang/include/clang/Basic/Builtins.def
  clang/include/clang/Basic/DiagnosticSemaKinds.td
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/lib/CodeGen/CGExpr.cpp
  clang/lib/Sema/SemaChecking.cpp
  clang/test/CodeGen/builtin-call-kcfi-unchecked.cpp
  clang/test/SemaCXX/builtins.cpp

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