[PATCH] D83114: [clang] Fix the incorrect dependence bits for DependentExtIntType.

[Haojian Wu via Phabricator via cfe-commits]

hokein created this revision.
hokein added a reviewer: sammccall.
Herald added a project: clang.

The error-bit was missing, and the unexpandedpack bit seemed to be
set incorrectly.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83114

Files:
  clang/lib/AST/Type.cpp
  clang/test/Sema/invalid-bitwidth-expr.mm


Index: clang/test/Sema/invalid-bitwidth-expr.mm
===================================================================
--- clang/test/Sema/invalid-bitwidth-expr.mm
+++ clang/test/Sema/invalid-bitwidth-expr.mm
@@ -32,3 +32,8 @@
   int X : func<int>(); // expected-note {{in instantiation of function template}}
 };
 constexpr int ssss = sizeof(Z);
+
+struct Z2 {
+  int X : sizeof(_ExtInt(invalid())); // expected-error {{use of undeclared identifier}}
+};
+constexpr int sssss = sizeof(Z2);
Index: clang/lib/AST/Type.cpp
===================================================================
--- clang/lib/AST/Type.cpp
+++ clang/lib/AST/Type.cpp
@@ -347,15 +347,7 @@
 DependentExtIntType::DependentExtIntType(const ASTContext &Context,
                                          bool IsUnsigned, Expr *NumBitsExpr)
     : Type(DependentExtInt, QualType{},
-           ((NumBitsExpr->isValueDependent() || NumBitsExpr->isTypeDependent())
-                ? TypeDependence::Dependent
-                : TypeDependence::None) |
-               (NumBitsExpr->isInstantiationDependent()
-                    ? TypeDependence::Instantiation
-                    : TypeDependence::None) |
-               (NumBitsExpr->containsUnexpandedParameterPack()
-                    ? TypeDependence::VariablyModified
-                    : TypeDependence::None)),
+           toTypeDependence(NumBitsExpr->getDependence())),
       Context(Context), ExprAndUnsigned(NumBitsExpr, IsUnsigned) {}
 
 bool DependentExtIntType::isUnsigned() const {


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