Author: Timm Baeder Date: 2026-06-02T16:47:56+02:00 New Revision: 5d9e965c3f9983278308a00c282810e0f04754cc
URL: https://github.com/llvm/llvm-project/commit/5d9e965c3f9983278308a00c282810e0f04754cc DIFF: https://github.com/llvm/llvm-project/commit/5d9e965c3f9983278308a00c282810e0f04754cc.diff LOG: [clang][ExprConst] Support DesignatedInitUpdateExpr of array type (#201000) I think this should work. Added: Modified: clang/lib/AST/ByteCode/Compiler.cpp clang/lib/AST/ExprConstant.cpp clang/test/Sema/constexpr.c Removed: ################################################################################ diff --git a/clang/lib/AST/ByteCode/Compiler.cpp b/clang/lib/AST/ByteCode/Compiler.cpp index 989a28dc2be14..99c3e8fa0924b 100644 --- a/clang/lib/AST/ByteCode/Compiler.cpp +++ b/clang/lib/AST/ByteCode/Compiler.cpp @@ -7836,7 +7836,6 @@ bool Compiler<Emitter>::VisitDeclRefExpr(const DeclRefExpr *E) { template <class Emitter> bool Compiler<Emitter>::VisitDesignatedInitUpdateExpr( const DesignatedInitUpdateExpr *E) { - assert(E->getType()->isRecordType()); if (!this->visitInitializer(E->getBase())) return false; return this->visitInitializer(E->getUpdater()); diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp index 7601d68b13939..f78854d15a9f2 100644 --- a/clang/lib/AST/ExprConstant.cpp +++ b/clang/lib/AST/ExprConstant.cpp @@ -15024,6 +15024,7 @@ namespace { ArrayRef<Expr *> Args, const Expr *ArrayFiller, QualType AllocType = QualType()); + bool VisitDesignatedInitUpdateExpr(const DesignatedInitUpdateExpr *E); }; } // end anonymous namespace @@ -15411,6 +15412,13 @@ bool ArrayExprEvaluator::VisitCXXParenListInitExpr( E->getArrayFiller()); } +bool ArrayExprEvaluator::VisitDesignatedInitUpdateExpr( + const DesignatedInitUpdateExpr *E) { + if (!Visit(E->getBase())) + return false; + return Visit(E->getUpdater()); +} + //===----------------------------------------------------------------------===// // Integer Evaluation // diff --git a/clang/test/Sema/constexpr.c b/clang/test/Sema/constexpr.c index cf029446bd362..51ee62d2495f3 100644 --- a/clang/test/Sema/constexpr.c +++ b/clang/test/Sema/constexpr.c @@ -446,3 +446,11 @@ static_assert(designated_init_b.a.d == 12.0); // expected-warning {{folding it t static_assert(designated_init_b.a.e[0] == 5); // expected-warning {{folding it to a constant is a GNU extension}} static_assert(designated_init_b.a.e[1] == 13); // expected-warning {{folding it to a constant is a GNU extension}} static_assert(designated_init_b.y == 14); + +struct S2 { + char L[4]; + int M; +}; +const struct S2 s2[2] = {{{"foo"}, 1}, [0].L[2] = 'x'}; // expected-warning {{initializer partially overrides prior initialization of this subobject}} \ + // expected-note {{previous initialization is here}} +static_assert(s2[0].L[2] == 'x');// expected-warning {{folding it to a constant is a GNU extension}} _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
