[PATCH] D142448: [clang][Interp] Handle TypeTraitExprs

[Timm Bäder via Phabricator via cfe-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG8d2899acbcf1: [clang][Interp] Handle TypeTraitExprs (authored by tbaeder).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D142448/new/

https://reviews.llvm.org/D142448

Files:
  clang/lib/AST/Interp/ByteCodeExprGen.cpp
  clang/lib/AST/Interp/ByteCodeExprGen.h
  clang/test/AST/Interp/literals.cpp


Index: clang/test/AST/Interp/literals.cpp
===================================================================
--- clang/test/AST/Interp/literals.cpp
+++ clang/test/AST/Interp/literals.cpp
@@ -743,3 +743,26 @@
   static_assert(get3() == 3, "");
 #endif
 };
+
+namespace TypeTraits {
+  static_assert(__is_trivial(int), "");
+  static_assert(__is_trivial(float), "");
+  static_assert(__is_trivial(E), "");
+  struct S{};
+  static_assert(__is_trivial(S), "");
+  struct S2 {
+    S2() {}
+  };
+  static_assert(!__is_trivial(S2), "");
+
+  template <typename T>
+  struct S3 {
+    constexpr bool foo() const { return __is_trivial(T); }
+  };
+  struct T {
+    ~T() {}
+  };
+  struct U {};
+  static_assert(S3<U>{}.foo(), "");
+  static_assert(!S3<T>{}.foo(), "");
+}
Index: clang/lib/AST/Interp/ByteCodeExprGen.h
===================================================================
--- clang/lib/AST/Interp/ByteCodeExprGen.h
+++ clang/lib/AST/Interp/ByteCodeExprGen.h
@@ -92,6 +92,7 @@
   bool VisitExprWithCleanups(const ExprWithCleanups *E);
   bool VisitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *E);
   bool VisitCompoundLiteralExpr(const CompoundLiteralExpr *E);
+  bool VisitTypeTraitExpr(const TypeTraitExpr *E);
 
 protected:
   bool visitExpr(const Expr *E) override;
Index: clang/lib/AST/Interp/ByteCodeExprGen.cpp
===================================================================
--- clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -897,6 +897,11 @@
   return false;
 }
 
+template <class Emitter>
+bool ByteCodeExprGen<Emitter>::VisitTypeTraitExpr(const TypeTraitExpr *E) {
+  return this->emitConstBool(E->getValue(), E);
+}
+
 template <class Emitter> bool ByteCodeExprGen<Emitter>::discard(const Expr *E) {
   if (E->containsErrors())
     return false;


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D142448.510018.patch
Type: text/x-patch
Size: 1827 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20230331/1ea0c0c4/attachment.bin>