diff options
Diffstat (limited to 'lib/Bitcode/Writer/BitcodeWriter.cpp')
| -rw-r--r-- | lib/Bitcode/Writer/BitcodeWriter.cpp | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp index 82e73b5cff25..3ab272666749 100644 --- a/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -808,11 +808,25 @@ static void WriteConstants(unsigned FirstVal, unsigned LastVal, else if (isCStr7) AbbrevToUse = CString7Abbrev; } else if (isa<ConstantArray>(C) || isa<ConstantStruct>(V) || - isa<ConstantUnion>(C) || isa<ConstantVector>(V)) { + isa<ConstantVector>(V)) { Code = bitc::CST_CODE_AGGREGATE; for (unsigned i = 0, e = C->getNumOperands(); i != e; ++i) Record.push_back(VE.getValueID(C->getOperand(i))); AbbrevToUse = AggregateAbbrev; + } else if (isa<ConstantUnion>(C)) { + Code = bitc::CST_CODE_AGGREGATE; + + // Unions only have one entry but we must send type along with it. + const Type *EntryKind = C->getOperand(0)->getType(); + + const UnionType *UnTy = cast<UnionType>(C->getType()); + int UnionIndex = UnTy->getElementTypeIndex(EntryKind); + assert(UnionIndex != -1 && "Constant union contains invalid entry"); + + Record.push_back(UnionIndex); + Record.push_back(VE.getValueID(C->getOperand(0))); + + AbbrevToUse = AggregateAbbrev; } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) { switch (CE->getOpcode()) { default: |