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author | Timm Baeder <tbaeder@redhat.com> | 2025-07-23 05:28:37 +0200 |
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committer | GitHub <noreply@github.com> | 2025-07-23 05:28:37 +0200 |
commit | 01b47eb86c991f88d3117f494ebd1826fd3ab41e (patch) | |
tree | 707102933bbe62bf4184616d03c1f6b90ceb4876 /clang/lib/AST/ByteCode/Compiler.cpp | |
parent | eb0c863c447bf2ad4d35cfde39925a655c060fa5 (diff) | |
download | llvm-01b47eb86c991f88d3117f494ebd1826fd3ab41e.zip llvm-01b47eb86c991f88d3117f494ebd1826fd3ab41e.tar.gz llvm-01b47eb86c991f88d3117f494ebd1826fd3ab41e.tar.bz2 |
[clang][bytecode] Only implicitly start lifetime of trivially-default-constructible union members (#149835)
See
https://github.com/llvm/llvm-project/commit/faee39baa87e43f4b746dd77e479268391163658
Diffstat (limited to 'clang/lib/AST/ByteCode/Compiler.cpp')
-rw-r--r-- | clang/lib/AST/ByteCode/Compiler.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/clang/lib/AST/ByteCode/Compiler.cpp b/clang/lib/AST/ByteCode/Compiler.cpp index 07efd6f8..e760055 100644 --- a/clang/lib/AST/ByteCode/Compiler.cpp +++ b/clang/lib/AST/ByteCode/Compiler.cpp @@ -25,11 +25,18 @@ using APSInt = llvm::APSInt; namespace clang { namespace interp { +static bool hasTrivialDefaultCtorParent(const FieldDecl *FD) { + assert(FD); + assert(FD->getParent()->isUnion()); + const auto *CXXRD = dyn_cast<CXXRecordDecl>(FD->getParent()); + return !CXXRD || CXXRD->hasTrivialDefaultConstructor(); +} + static bool refersToUnion(const Expr *E) { for (;;) { if (const auto *ME = dyn_cast<MemberExpr>(E)) { if (const auto *FD = dyn_cast<FieldDecl>(ME->getMemberDecl()); - FD && FD->getParent()->isUnion()) + FD && FD->getParent()->isUnion() && hasTrivialDefaultCtorParent(FD)) return true; E = ME->getBase(); continue; |