diff options
Diffstat (limited to 'clang/lib')
| -rw-r--r-- | clang/lib/CodeGen/TargetInfo.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/TargetInfo.cpp b/clang/lib/CodeGen/TargetInfo.cpp index 9d2871649c8..b6a53c9f45b 100644 --- a/clang/lib/CodeGen/TargetInfo.cpp +++ b/clang/lib/CodeGen/TargetInfo.cpp @@ -406,8 +406,16 @@ llvm::Value *DefaultABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty, } ABIArgInfo DefaultABIInfo::classifyArgumentType(QualType Ty) const { - if (isAggregateTypeForABI(Ty)) + Ty = useFirstFieldIfTransparentUnion(Ty); + + if (isAggregateTypeForABI(Ty)) { + // Records with non-trivial destructors/copy-constructors should not be + // passed by value. + if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI())) + return ABIArgInfo::getIndirect(0, RAA == CGCXXABI::RAA_DirectInMemory); + return ABIArgInfo::getIndirect(0); + } // Treat an enum type as its underlying type. if (const EnumType *EnumTy = Ty->getAs<EnumType>()) |
