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| author | David Majnemer <david.majnemer@gmail.com> | 2015-05-30 09:12:07 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2015-05-30 09:12:07 +0000 |
| commit | 4e51dfc4312897987417b59839684e4ffd3201f6 (patch) | |
| tree | 8227cf066e05c8b6173a36872b95fc490145ac57 /clang/lib/CodeGen/CGExprConstant.cpp | |
| parent | 15864f1518c6b15b6936cd746227d61530f92427 (diff) | |
| download | bcm5719-llvm-4e51dfc4312897987417b59839684e4ffd3201f6.tar.gz bcm5719-llvm-4e51dfc4312897987417b59839684e4ffd3201f6.zip | |
[CodeGen] Indirect fields can initialize a union
The first named data member is the field used to default initialize the
union. An IndirectFieldDecl can introduce the first named data member
of a union.
llvm-svn: 238649
Diffstat (limited to 'clang/lib/CodeGen/CGExprConstant.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGExprConstant.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/clang/lib/CodeGen/CGExprConstant.cpp b/clang/lib/CodeGen/CGExprConstant.cpp index 73ca0cc1c3d..b90b3ab61d8 100644 --- a/clang/lib/CodeGen/CGExprConstant.cpp +++ b/clang/lib/CodeGen/CGExprConstant.cpp @@ -1349,8 +1349,14 @@ static llvm::Constant *EmitNullConstant(CodeGenModule &CGM, } // For unions, stop after the first named field. - if (record->isUnion() && Field->getDeclName()) - break; + if (record->isUnion()) { + if (Field->getIdentifier()) + break; + if (const auto *FieldRD = + dyn_cast_or_null<RecordDecl>(Field->getType()->getAsTagDecl())) + if (FieldRD->findFirstNamedDataMember()) + break; + } } // Fill in the virtual bases, if we're working with the complete object. |
