[clang] [Clang] Support constexpr asm at global scope. (PR #143268)

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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 HEAD~1 HEAD --extensions h,cpp -- clang/include/clang/AST/ASTNodeTraverser.h clang/include/clang/AST/Decl.h clang/include/clang/AST/RecursiveASTVisitor.h clang/lib/AST/Decl.cpp clang/lib/AST/DeclPrinter.cpp clang/lib/CodeGen/CodeGenModule.cpp clang/lib/Sema/SemaDecl.cpp clang/lib/Serialization/ASTWriterDecl.cpp clang/test/CodeGenCXX/gnu-asm-constexpr.cpp
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<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/clang/include/clang/AST/Decl.h b/clang/include/clang/AST/Decl.h
index 5c378e58c..05aac15b3 100644
--- a/clang/include/clang/AST/Decl.h
+++ b/clang/include/clang/AST/Decl.h
@@ -4493,15 +4493,15 @@ class FileScopeAsmDecl : public Decl {
   Expr *AsmString;
   SourceLocation RParenLoc;
 
-  FileScopeAsmDecl(DeclContext *DC, Expr *asmstring,
-                   SourceLocation StartL, SourceLocation EndL)
-    : Decl(FileScopeAsm, DC, StartL), AsmString(asmstring), RParenLoc(EndL) {}
+  FileScopeAsmDecl(DeclContext *DC, Expr *asmstring, SourceLocation StartL,
+                   SourceLocation EndL)
+      : Decl(FileScopeAsm, DC, StartL), AsmString(asmstring), RParenLoc(EndL) {}
 
   virtual void anchor();
 
 public:
-  static FileScopeAsmDecl *Create(ASTContext &C, DeclContext *DC,
-                                  Expr *Str, SourceLocation AsmLoc,
+  static FileScopeAsmDecl *Create(ASTContext &C, DeclContext *DC, Expr *Str,
+                                  SourceLocation AsmLoc,
                                   SourceLocation RParenLoc);
 
   static FileScopeAsmDecl *CreateDeserialized(ASTContext &C, GlobalDeclID ID);
@@ -4519,7 +4519,6 @@ public:
 
   std::string getAsmString() const;
 
-
   static bool classof(const Decl *D) { return classofKind(D->getKind()); }
   static bool classofKind(Kind K) { return K == FileScopeAsm; }
 };
diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index 08d08293b..860968939 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -5713,8 +5713,7 @@ SourceRange TypeAliasDecl::getSourceRange() const {
 void FileScopeAsmDecl::anchor() {}
 
 FileScopeAsmDecl *FileScopeAsmDecl::Create(ASTContext &C, DeclContext *DC,
-                                           Expr *Str,
-                                           SourceLocation AsmLoc,
+                                           Expr *Str, SourceLocation AsmLoc,
                                            SourceLocation RParenLoc) {
   return new (C, DC) FileScopeAsmDecl(DC, Str, AsmLoc, RParenLoc);
 }
@@ -5726,7 +5725,7 @@ FileScopeAsmDecl *FileScopeAsmDecl::CreateDeserialized(ASTContext &C,
 }
 
 std::string FileScopeAsmDecl::getAsmString() const {
-   return GCCAsmStmt::ExtractStringFromGCCAsmStmtComponent(getAsmStringExpr());
+  return GCCAsmStmt::ExtractStringFromGCCAsmStmtComponent(getAsmStringExpr());
 }
 
 void TopLevelStmtDecl::anchor() {}
diff --git a/clang/lib/AST/DeclPrinter.cpp b/clang/lib/AST/DeclPrinter.cpp
index be98b87d9..944385744 100644
--- a/clang/lib/AST/DeclPrinter.cpp
+++ b/clang/lib/AST/DeclPrinter.cpp
@@ -1043,7 +1043,7 @@ void DeclPrinter::VisitParmVarDecl(ParmVarDecl *D) {
 void DeclPrinter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
   Out << "__asm (";
   D->getAsmStringExpr()->printPretty(Out, nullptr, Policy, Indentation, "\n",
-                                 &Context);
+                                     &Context);
   Out << ")";
 }
 
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 1bcc0c5a4..bbd63372c 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -20514,13 +20514,11 @@ void Sema::ActOnEnumBody(SourceLocation EnumLoc, SourceRange BraceRange,
     CheckAlignasUnderalignment(Enum);
 }
 
-Decl *Sema::ActOnFileScopeAsmDecl(Expr *expr,
-                                  SourceLocation StartLoc,
+Decl *Sema::ActOnFileScopeAsmDecl(Expr *expr, SourceLocation StartLoc,
                                   SourceLocation EndLoc) {
 
-    FileScopeAsmDecl *New = FileScopeAsmDecl::Create(Context, CurContext,
-                                                   expr, StartLoc,
-                                                   EndLoc);
+  FileScopeAsmDecl *New =
+      FileScopeAsmDecl::Create(Context, CurContext, expr, StartLoc, EndLoc);
   CurContext->addDecl(New);
   return New;
 }

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https://github.com/llvm/llvm-project/pull/143268