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| author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2015-02-03 21:54:14 +0000 |
|---|---|---|
| committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2015-02-03 21:54:14 +0000 |
| commit | 4e4aa7053503a00c29fadaec82e2f399bc9da492 (patch) | |
| tree | d96c4bb1895e44a477fa4131e76d73bbbea3836d /llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | |
| parent | 37cd4d0f42c31cc0c933069e528e65deaeb94477 (diff) | |
| download | llvm-4e4aa7053503a00c29fadaec82e2f399bc9da492.zip llvm-4e4aa7053503a00c29fadaec82e2f399bc9da492.tar.gz llvm-4e4aa7053503a00c29fadaec82e2f399bc9da492.tar.bz2 | |
IR: Assembly and bitcode for GenericDebugNode
llvm-svn: 228041
Diffstat (limited to 'llvm/lib/Bitcode/Writer/BitcodeWriter.cpp')
| -rw-r--r-- | llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | 36 |
1 files changed, 31 insertions, 5 deletions
diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp index 2f1c74a..3aa1ef9 100644 --- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -792,10 +792,20 @@ static void WriteMDLocation(const MDLocation *N, const ValueEnumerator &VE, Record.clear(); } -static void WriteGenericDebugNode(const GenericDebugNode *, - const ValueEnumerator &, BitstreamWriter &, - SmallVectorImpl<uint64_t> &, unsigned) { - llvm_unreachable("unimplemented"); +static void WriteGenericDebugNode(const GenericDebugNode *N, + const ValueEnumerator &VE, + BitstreamWriter &Stream, + SmallVectorImpl<uint64_t> &Record, + unsigned Abbrev) { + Record.push_back(N->isDistinct()); + Record.push_back(N->getTag()); + Record.push_back(0); // Per-tag version field; unused for now. + + for (auto &I : N->operands()) + Record.push_back(VE.getMetadataOrNullID(I)); + + Stream.EmitRecord(bitc::METADATA_GENERIC_DEBUG, Record, Abbrev); + Record.clear(); } static void WriteModuleMetadata(const Module *M, @@ -833,6 +843,23 @@ static void WriteModuleMetadata(const Module *M, MDLocationAbbrev = Stream.EmitAbbrev(Abbv); } + unsigned GenericDebugNodeAbbrev = 0; + if (VE.hasGenericDebugNode()) { + // Abbrev for METADATA_GENERIC_DEBUG. + // + // Assume the column is usually under 128, and always output the inlined-at + // location (it's never more expensive than building an array size 1). + BitCodeAbbrev *Abbv = new BitCodeAbbrev(); + Abbv->Add(BitCodeAbbrevOp(bitc::METADATA_GENERIC_DEBUG)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); + GenericDebugNodeAbbrev = Stream.EmitAbbrev(Abbv); + } + unsigned NameAbbrev = 0; if (!M->named_metadata_empty()) { // Abbrev for METADATA_NAME. @@ -844,7 +871,6 @@ static void WriteModuleMetadata(const Module *M, } unsigned MDTupleAbbrev = 0; - unsigned GenericDebugNodeAbbrev = 0; SmallVector<uint64_t, 64> Record; for (const Metadata *MD : MDs) { if (const MDNode *N = dyn_cast<MDNode>(MD)) { |