[PATCH] D145861: [clang][Interp] Ignore more non-VarDecl declarations

[Timm Bäder via Phabricator via cfe-commits]

tbaeder created this revision.
tbaeder added reviewers: aaron.ballman, erichkeane, tahonermann, shafik.
Herald added a subscriber: kristof.beyls.
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tbaeder requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

  They are harmless and handled by other means, but we used to return
  false from visitDeclStmt.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D145861

Files:
  clang/lib/AST/Interp/ByteCodeStmtGen.cpp
  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
@@ -768,3 +768,14 @@
   static_assert(S3<U>{}.foo(), "");
   static_assert(!S3<T>{}.foo(), "");
 }
+
+#if __cplusplus >= 201402L
+constexpr int ignoredDecls() {
+  static_assert(true);
+  struct F { int a; };
+  enum E { b };
+
+  return F{12}.a;
+}
+static_assert(ignoredDecls() == 12, "");
+#endif
Index: clang/lib/AST/Interp/ByteCodeStmtGen.cpp
===================================================================
--- clang/lib/AST/Interp/ByteCodeStmtGen.cpp
+++ clang/lib/AST/Interp/ByteCodeStmtGen.cpp
@@ -221,7 +221,7 @@
 template <class Emitter>
 bool ByteCodeStmtGen<Emitter>::visitDeclStmt(const DeclStmt *DS) {
   for (auto *D : DS->decls()) {
-    if (isa<StaticAssertDecl>(D))
+    if (isa<StaticAssertDecl, RecordDecl, EnumDecl>(D))
       continue;
 
     const auto *VD = dyn_cast<VarDecl>(D);



Index: clang/test/AST/Interp/literals.cpp
===================================================================
--- clang/test/AST/Interp/literals.cpp
+++ clang/test/AST/Interp/literals.cpp
@@ -768,3 +768,14 @@
   static_assert(S3<U>{}.foo(), "");
   static_assert(!S3<T>{}.foo(), "");
 }
+
+#if __cplusplus >= 201402L
+constexpr int ignoredDecls() {
+  static_assert(true);
+  struct F { int a; };
+  enum E { b };
+
+  return F{12}.a;
+}
+static_assert(ignoredDecls() == 12, "");
+#endif
Index: clang/lib/AST/Interp/ByteCodeStmtGen.cpp
===================================================================
--- clang/lib/AST/Interp/ByteCodeStmtGen.cpp
+++ clang/lib/AST/Interp/ByteCodeStmtGen.cpp
@@ -221,7 +221,7 @@
 template <class Emitter>
 bool ByteCodeStmtGen<Emitter>::visitDeclStmt(const DeclStmt *DS) {
   for (auto *D : DS->decls()) {
-    if (isa<StaticAssertDecl>(D))
+    if (isa<StaticAssertDecl, RecordDecl, EnumDecl>(D))
       continue;
 
     const auto *VD = dyn_cast<VarDecl>(D);

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