https://github.com/tbaederr created https://github.com/llvm/llvm-project/pull/175721
We already do this similarly for CXXReinterpretCastExprs, except in that case we try harder to make things work. >From bb4dc96c6193eaa09d226bff61e78af4d6e10eea Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Timm=20B=C3=A4der?= <[email protected]> Date: Tue, 13 Jan 2026 08:44:11 +0100 Subject: [PATCH] [clang][bytecode] Diagnose regular CK_LValueBitCast cast nodes We already do this similarly for CXXReinterpretCastExprs, except in that case we try harder to make things work. --- clang/lib/AST/ByteCode/Compiler.cpp | 3 +++ clang/test/AST/ByteCode/cxx11.cpp | 4 ++++ 2 files changed, 7 insertions(+) diff --git a/clang/lib/AST/ByteCode/Compiler.cpp b/clang/lib/AST/ByteCode/Compiler.cpp index b68576158decc..b39736587034d 100644 --- a/clang/lib/AST/ByteCode/Compiler.cpp +++ b/clang/lib/AST/ByteCode/Compiler.cpp @@ -779,6 +779,9 @@ bool Compiler<Emitter>::VisitCastExpr(const CastExpr *CE) { // a diagnostic if appropriate. return this->delegate(SubExpr); + case CK_LValueBitCast: + return this->emitInvalidCast(CastKind::ReinterpretLike, /*Fatal=*/true, CE); + default: return this->emitInvalid(CE); } diff --git a/clang/test/AST/ByteCode/cxx11.cpp b/clang/test/AST/ByteCode/cxx11.cpp index 9a61321f67a40..e1fb5948b7708 100644 --- a/clang/test/AST/ByteCode/cxx11.cpp +++ b/clang/test/AST/ByteCode/cxx11.cpp @@ -33,6 +33,10 @@ constexpr int b = b; // both-error {{must be initialized by a constant expressio // both-note {{declared here}} + void func(); + constexpr int (&fp4)() = (int(&)())func; // both-error {{constant expression}} \ + // both-note {{reinterpret_cast}} + struct S { int m; }; _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
