[clang] [clang] Add add attribute [[clang::builtin]] (PR #78071)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff 54e2749609d7114f4a48f4146cddeecf76d935a4 f073a827ddbe728ced53a82431f517da58753776 -- clang/test/CodeGenCXX/attr-builtin.cpp clang/test/SemaCXX/attr-builtin-debug.cpp clang/test/SemaCXX/attr-builtin.cpp clang/lib/AST/Decl.cpp clang/lib/AST/ExprConstant.cpp clang/lib/CodeGen/CGExpr.cpp clang/lib/Headers/mmintrin.h clang/lib/Sema/SemaDecl.cpp clang/lib/Sema/SemaDeclAttr.cpp clang/lib/Sema/SemaExpr.cpp
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<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index 52b45ba038..22201eca47 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -7665,11 +7665,11 @@ protected:
     if (BuiltinOp == 0 || !Info.Ctx.BuiltinInfo.isConstantEvaluated(BuiltinOp))
       return false;
 
-    if (const auto* CD = E->getCalleeDecl()) {
-      if (const auto* FD = CD->getAsFunction()) {
+    if (const auto *CD = E->getCalleeDecl()) {
+      if (const auto *FD = CD->getAsFunction()) {
         if (FD->isConstexpr())
           return true;
-        if (const auto* BA = FD->getAttr<BuiltinAttr>())
+        if (const auto *BA = FD->getAttr<BuiltinAttr>())
           return BA->isImplicit();
       }
     }
diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp
index 3df09d8365..67f1c8114e 100644
--- a/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/clang/lib/Sema/SemaDeclAttr.cpp
@@ -5921,8 +5921,7 @@ static void handleBuiltinAliasAttr(Sema &S, Decl *D,
   D->addAttr(::new (S.Context) BuiltinAliasAttr(S.Context, AL, Ident));
 }
 
-static void handleBuiltinAttr(Sema &S, Decl *D,
-                                          const ParsedAttr &AL) {
+static void handleBuiltinAttr(Sema &S, Decl *D, const ParsedAttr &AL) {
   if (!AL.checkExactlyNumArgs(S, 1))
     return;
 
@@ -5935,7 +5934,7 @@ static void handleBuiltinAttr(Sema &S, Decl *D,
   unsigned ID =
       S.getPreprocessor().getIdentifierTable().get(BuiltinName).getBuiltinID();
 
-  auto& BuiltinInfo = S.Context.BuiltinInfo;
+  auto &BuiltinInfo = S.Context.BuiltinInfo;
 
   if (ID == 0 || BuiltinInfo.isInStdNamespace(ID) != IsInStdNamespace) {
     S.Diag(AL.getLoc(), diag::err_unknown_builtin);
@@ -5984,7 +5983,7 @@ static void handleBuiltinAttr(Sema &S, Decl *D,
     });
   };
 
-  if (const auto* MD = dyn_cast<CXXMethodDecl>(D)) {
+  if (const auto *MD = dyn_cast<CXXMethodDecl>(D)) {
     if (!MD->isStatic()) {
       S.Diag(AL.getLoc(), diag::warn_unsupported_on_member_function);
       return;

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https://github.com/llvm/llvm-project/pull/78071