Factor common code for quoting a builtin name

[chandlerc]

This shows up in several places in order to match the quoting of other uses of the same diagnostic. Handling it centrally simplifies the code and reduces changes if the storage for builtin names changes.

This refactoring is extracted out of #120534 as requested in code review.

[llvmbot]

@llvm/pr-subscribers-clang

Author: Chandler Carruth (chandlerc)

Changes

This shows up in several places in order to match the quoting of other uses of the same diagnostic. Handling it centrally simplifies the code and reduces changes if the storage for builtin names changes.

This refactoring is extracted out of #120534 as requested in code review.

---

Full diff: https://github.com/llvm/llvm-project/pull/120835.diff

4 Files Affected:

• (modified) clang/include/clang/Basic/Builtins.h (+3)
• (modified) clang/lib/AST/ByteCode/InterpBuiltin.cpp (+2-2)
• (modified) clang/lib/AST/ExprConstant.cpp (+7-8)
• (modified) clang/lib/Basic/Builtins.cpp (+4)

diff --git a/clang/include/clang/Basic/Builtins.h b/clang/include/clang/Basic/Builtins.h
index e27d8ccce73664..63559d977ce6b6 100644
--- a/clang/include/clang/Basic/Builtins.h
+++ b/clang/include/clang/Basic/Builtins.h
@@ -102,6 +102,9 @@ class Context {
   /// e.g. "__builtin_abs".
   llvm::StringRef getName(unsigned ID) const { return getRecord(ID).Name; }
 
+  /// Return a quoted name for the specified builtin for use in diagnostics.
+  std::string getQuotedName(unsigned ID) const;
+
   /// Get the type descriptor string for the specified builtin.
   const char *getTypeString(unsigned ID) const { return getRecord(ID).Type; }
 
diff --git a/clang/lib/AST/ByteCode/InterpBuiltin.cpp b/clang/lib/AST/ByteCode/InterpBuiltin.cpp
index 2ae91feb2d9e8e..ed18e1b24c323e 100644
--- a/clang/lib/AST/ByteCode/InterpBuiltin.cpp
+++ b/clang/lib/AST/ByteCode/InterpBuiltin.cpp
@@ -154,7 +154,7 @@ static void diagnoseNonConstexprBuiltin(InterpState &S, CodePtr OpPC,
   if (S.getLangOpts().CPlusPlus11)
     S.CCEDiag(Loc, diag::note_constexpr_invalid_function)
         << /*isConstexpr=*/0 << /*isConstructor=*/0
-        << ("'" + S.getASTContext().BuiltinInfo.getName(ID) + "'").str();
+        << S.getASTContext().BuiltinInfo.getQuotedName(ID);
   else
     S.CCEDiag(Loc, diag::note_invalid_subexpr_in_const_expr);
 }
@@ -1948,7 +1948,7 @@ static bool interp__builtin_memcmp(InterpState &S, CodePtr OpPC,
                   !isOneByteCharacterType(PtrB.getType()))) {
     S.FFDiag(S.Current->getSource(OpPC),
              diag::note_constexpr_memcmp_unsupported)
-        << ("'" + ASTCtx.BuiltinInfo.getName(ID) + "'").str() << PtrA.getType()
+        << ASTCtx.BuiltinInfo.getQuotedName(ID) << PtrA.getType()
         << PtrB.getType();
     return false;
   }
diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index 89c515e6392764..c667fddfbf8120 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -9858,7 +9858,7 @@ bool PointerExprEvaluator::VisitBuiltinCallExpr(const CallExpr *E,
     if (Info.getLangOpts().CPlusPlus11)
       Info.CCEDiag(E, diag::note_constexpr_invalid_function)
           << /*isConstexpr*/ 0 << /*isConstructor*/ 0
-          << ("'" + Info.Ctx.BuiltinInfo.getName(BuiltinOp) + "'").str();
+          << Info.Ctx.BuiltinInfo.getQuotedName(BuiltinOp);
     else
       Info.CCEDiag(E, diag::note_invalid_subexpr_in_const_expr);
     [[fallthrough]];
@@ -9903,8 +9903,7 @@ bool PointerExprEvaluator::VisitBuiltinCallExpr(const CallExpr *E,
     // FIXME: We can compare the bytes in the correct order.
     if (IsRawByte && !isOneByteCharacterType(CharTy)) {
       Info.FFDiag(E, diag::note_constexpr_memchr_unsupported)
-          << ("'" + Info.Ctx.BuiltinInfo.getName(BuiltinOp) + "'").str()
-          << CharTy;
+          << Info.Ctx.BuiltinInfo.getQuotedName(BuiltinOp) << CharTy;
       return false;
     }
     // Figure out what value we're actually looking for (after converting to
@@ -9966,7 +9965,7 @@ bool PointerExprEvaluator::VisitBuiltinCallExpr(const CallExpr *E,
     if (Info.getLangOpts().CPlusPlus11)
       Info.CCEDiag(E, diag::note_constexpr_invalid_function)
           << /*isConstexpr*/ 0 << /*isConstructor*/ 0
-          << ("'" + Info.Ctx.BuiltinInfo.getName(BuiltinOp) + "'").str();
+          << Info.Ctx.BuiltinInfo.getQuotedName(BuiltinOp);
     else
       Info.CCEDiag(E, diag::note_invalid_subexpr_in_const_expr);
     [[fallthrough]];
@@ -13241,7 +13240,7 @@ bool IntExprEvaluator::VisitBuiltinCallExpr(const CallExpr *E,
     if (Info.getLangOpts().CPlusPlus11)
       Info.CCEDiag(E, diag::note_constexpr_invalid_function)
           << /*isConstexpr*/ 0 << /*isConstructor*/ 0
-          << ("'" + Info.Ctx.BuiltinInfo.getName(BuiltinOp) + "'").str();
+          << Info.Ctx.BuiltinInfo.getQuotedName(BuiltinOp);
     else
       Info.CCEDiag(E, diag::note_invalid_subexpr_in_const_expr);
     [[fallthrough]];
@@ -13266,7 +13265,7 @@ bool IntExprEvaluator::VisitBuiltinCallExpr(const CallExpr *E,
     if (Info.getLangOpts().CPlusPlus11)
       Info.CCEDiag(E, diag::note_constexpr_invalid_function)
           << /*isConstexpr*/ 0 << /*isConstructor*/ 0
-          << ("'" + Info.Ctx.BuiltinInfo.getName(BuiltinOp) + "'").str();
+          << Info.Ctx.BuiltinInfo.getQuotedName(BuiltinOp);
     else
       Info.CCEDiag(E, diag::note_invalid_subexpr_in_const_expr);
     [[fallthrough]];
@@ -13321,8 +13320,8 @@ bool IntExprEvaluator::VisitBuiltinCallExpr(const CallExpr *E,
         !(isOneByteCharacterType(CharTy1) && isOneByteCharacterType(CharTy2))) {
       // FIXME: Consider using our bit_cast implementation to support this.
       Info.FFDiag(E, diag::note_constexpr_memcmp_unsupported)
-          << ("'" + Info.Ctx.BuiltinInfo.getName(BuiltinOp) + "'").str()
-          << CharTy1 << CharTy2;
+          << Info.Ctx.BuiltinInfo.getQuotedName(BuiltinOp) << CharTy1
+          << CharTy2;
       return false;
     }
 
diff --git a/clang/lib/Basic/Builtins.cpp b/clang/lib/Basic/Builtins.cpp
index 8dd1888db29883..588183788de322 100644
--- a/clang/lib/Basic/Builtins.cpp
+++ b/clang/lib/Basic/Builtins.cpp
@@ -163,6 +163,10 @@ void Builtin::Context::initializeBuiltins(IdentifierTable &Table,
   }
 }
 
+std::string Builtin::Context::getQuotedName(unsigned ID) const {
+  return (llvm::Twine("'") + getName(ID) + "'").str();
+}
+
 unsigned Builtin::Context::getRequiredVectorWidth(unsigned ID) const {
   const char *WidthPos = ::strchr(getRecord(ID).Attributes, 'V');
   if (!WidthPos)