#include "llvm/Bitcode/BitstreamWriter.h"
#include "llvm/Bitcode/LLVMBitCodes.h"
#include "llvm/IR/Constants.h"
+#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/IR/Instructions.h"
case GlobalValue::ExternalLinkage:
return 0;
case GlobalValue::WeakAnyLinkage:
- return 1;
+ return 16;
case GlobalValue::AppendingLinkage:
return 2;
case GlobalValue::InternalLinkage:
return 3;
case GlobalValue::LinkOnceAnyLinkage:
- return 4;
+ return 18;
case GlobalValue::ExternalWeakLinkage:
return 7;
case GlobalValue::CommonLinkage:
case GlobalValue::PrivateLinkage:
return 9;
case GlobalValue::WeakODRLinkage:
- return 10;
+ return 17;
case GlobalValue::LinkOnceODRLinkage:
- return 11;
+ return 19;
case GlobalValue::AvailableExternallyLinkage:
return 12;
}
}
static void writeComdats(const ValueEnumerator &VE, BitstreamWriter &Stream) {
- SmallVector<uint8_t, 64> Vals;
+ SmallVector<uint16_t, 64> Vals;
for (const Comdat *C : VE.getComdats()) {
// COMDAT: [selection_kind, name]
Vals.push_back(getEncodedComdatSelectionKind(*C));
- Vals.push_back(C->getName().size());
+ size_t Size = C->getName().size();
+ assert(isUInt<16>(Size));
+ Vals.push_back(Size);
for (char Chr : C->getName())
Vals.push_back((unsigned char)Chr);
Stream.EmitRecord(bitc::MODULE_CODE_COMDAT, Vals, /*AbbrevToUse=*/0);
Log2_32_Ceil(MaxGlobalType+1)));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constant.
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Initializer.
- Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // Linkage.
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 5)); // Linkage.
if (MaxAlignment == 0) // Alignment.
Abbv->Add(BitCodeAbbrevOp(0));
else {
// GLOBALVAR: [type, isconst, initid,
// linkage, alignment, section, visibility, threadlocal,
- // unnamed_addr, externally_initialized, dllstorageclass]
+ // unnamed_addr, externally_initialized, dllstorageclass,
+ // comdat]
Vals.push_back(VE.getTypeID(GV.getType()));
Vals.push_back(GV.isConstant());
Vals.push_back(GV.isDeclaration() ? 0 :
Record.clear();
}
-static void WriteMDNode(const MDNode *N,
- const ValueEnumerator &VE,
- BitstreamWriter &Stream,
- SmallVectorImpl<uint64_t> &Record) {
+static void WriteMDTuple(const MDTuple *N, const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record, unsigned Abbrev) {
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
Metadata *MD = N->getOperand(i);
- if (!MD) {
- Record.push_back(0);
- continue;
- }
- assert(!isa<LocalAsMetadata>(MD) && "Unexpected function-local metadata");
- Record.push_back(VE.getMetadataID(MD) + 1);
+ assert(!(MD && isa<LocalAsMetadata>(MD)) &&
+ "Unexpected function-local metadata");
+ Record.push_back(VE.getMetadataOrNullID(MD));
}
Stream.EmitRecord(N->isDistinct() ? bitc::METADATA_DISTINCT_NODE
: bitc::METADATA_NODE,
- Record);
+ Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDLocation(const MDLocation *N, const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(N->getLine());
+ Record.push_back(N->getColumn());
+ Record.push_back(VE.getMetadataID(N->getScope()));
+ Record.push_back(VE.getMetadataOrNullID(N->getInlinedAt()));
+
+ Stream.EmitRecord(bitc::METADATA_LOCATION, Record, Abbrev);
+ Record.clear();
+}
+
+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 uint64_t rotateSign(int64_t I) {
+ uint64_t U = I;
+ return I < 0 ? ~(U << 1) : U << 1;
+}
+
+static void WriteMDSubrange(const MDSubrange *N, const ValueEnumerator &,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(N->getCount());
+ Record.push_back(rotateSign(N->getLo()));
+
+ Stream.EmitRecord(bitc::METADATA_SUBRANGE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDEnumerator(const MDEnumerator *N, const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(rotateSign(N->getValue()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
+
+ Stream.EmitRecord(bitc::METADATA_ENUMERATOR, Record, Abbrev);
Record.clear();
}
+static void WriteMDBasicType(const MDBasicType *, const ValueEnumerator &,
+ BitstreamWriter &, SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDDerivedType(const MDDerivedType *, const ValueEnumerator &,
+ BitstreamWriter &, SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDCompositeType(const MDCompositeType *,
+ const ValueEnumerator &, BitstreamWriter &,
+ SmallVectorImpl<uint64_t> &, unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDSubroutineType(const MDSubroutineType *,
+ const ValueEnumerator &, BitstreamWriter &,
+ SmallVectorImpl<uint64_t> &, unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDFile(const MDFile *, const ValueEnumerator &,
+ BitstreamWriter &, SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDCompileUnit(const MDCompileUnit *, const ValueEnumerator &,
+ BitstreamWriter &, SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDSubprogram(const MDSubprogram *, const ValueEnumerator &,
+ BitstreamWriter &, SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDLexicalBlock(const MDLexicalBlock *, const ValueEnumerator &,
+ BitstreamWriter &, SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDLexicalBlockFile(const MDLexicalBlockFile *,
+ const ValueEnumerator &, BitstreamWriter &,
+ SmallVectorImpl<uint64_t> &, unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDNamespace(const MDNamespace *, const ValueEnumerator &,
+ BitstreamWriter &, SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDTemplateTypeParameter(const MDTemplateTypeParameter *,
+ const ValueEnumerator &,
+ BitstreamWriter &,
+ SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDTemplateValueParameter(const MDTemplateValueParameter *,
+ const ValueEnumerator &,
+ BitstreamWriter &,
+ SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDGlobalVariable(const MDGlobalVariable *,
+ const ValueEnumerator &, BitstreamWriter &,
+ SmallVectorImpl<uint64_t> &, unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDLocalVariable(const MDLocalVariable *,
+ const ValueEnumerator &, BitstreamWriter &,
+ SmallVectorImpl<uint64_t> &, unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDExpression(const MDExpression *, const ValueEnumerator &,
+ BitstreamWriter &, SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDObjCProperty(const MDObjCProperty *, const ValueEnumerator &,
+ BitstreamWriter &, SmallVectorImpl<uint64_t> &,
+ unsigned) {
+ llvm_unreachable("write not implemented");
+}
+static void WriteMDImportedEntity(const MDImportedEntity *,
+ const ValueEnumerator &, BitstreamWriter &,
+ SmallVectorImpl<uint64_t> &, unsigned) {
+ llvm_unreachable("write not implemented");
+}
+
static void WriteModuleMetadata(const Module *M,
const ValueEnumerator &VE,
BitstreamWriter &Stream) {
const auto &MDs = VE.getMDs();
- bool StartedMetadataBlock = false;
+ if (MDs.empty() && M->named_metadata_empty())
+ return;
+
+ Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
+
unsigned MDSAbbrev = 0;
+ if (VE.hasMDString()) {
+ // Abbrev for METADATA_STRING.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::METADATA_STRING));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8));
+ MDSAbbrev = Stream.EmitAbbrev(Abbv);
+ }
+
+ // Initialize MDNode abbreviations.
+#define HANDLE_MDNODE_LEAF(CLASS) unsigned CLASS##Abbrev = 0;
+#include "llvm/IR/Metadata.def"
+
+ if (VE.hasMDLocation()) {
+ // Abbrev for METADATA_LOCATION.
+ //
+ // 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_LOCATION));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
+ MDLocationAbbrev = Stream.EmitAbbrev(Abbv);
+ }
+
+ 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.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::METADATA_NAME));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8));
+ NameAbbrev = Stream.EmitAbbrev(Abbv);
+ }
+
SmallVector<uint64_t, 64> Record;
- for (unsigned i = 0, e = MDs.size(); i != e; ++i) {
- if (const MDNode *N = dyn_cast<MDNode>(MDs[i])) {
- if (!StartedMetadataBlock) {
- Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
- StartedMetadataBlock = true;
- }
- WriteMDNode(N, VE, Stream, Record);
- } else if (const auto *MDC = dyn_cast<ConstantAsMetadata>(MDs[i])) {
- if (!StartedMetadataBlock) {
- Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
- StartedMetadataBlock = true;
+ for (const Metadata *MD : MDs) {
+ if (const MDNode *N = dyn_cast<MDNode>(MD)) {
+ switch (N->getMetadataID()) {
+ default:
+ llvm_unreachable("Invalid MDNode subclass");
+#define HANDLE_MDNODE_LEAF(CLASS) \
+ case Metadata::CLASS##Kind: \
+ Write##CLASS(cast<CLASS>(N), VE, Stream, Record, CLASS##Abbrev); \
+ continue;
+#include "llvm/IR/Metadata.def"
}
+ }
+ if (const auto *MDC = dyn_cast<ConstantAsMetadata>(MD)) {
WriteValueAsMetadata(MDC, VE, Stream, Record);
- } else if (const MDString *MDS = dyn_cast<MDString>(MDs[i])) {
- if (!StartedMetadataBlock) {
- Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
-
- // Abbrev for METADATA_STRING.
- BitCodeAbbrev *Abbv = new BitCodeAbbrev();
- Abbv->Add(BitCodeAbbrevOp(bitc::METADATA_STRING));
- Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
- Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8));
- MDSAbbrev = Stream.EmitAbbrev(Abbv);
- StartedMetadataBlock = true;
- }
-
- // Code: [strchar x N]
- Record.append(MDS->bytes_begin(), MDS->bytes_end());
-
- // Emit the finished record.
- Stream.EmitRecord(bitc::METADATA_STRING, Record, MDSAbbrev);
- Record.clear();
+ continue;
}
+ const MDString *MDS = cast<MDString>(MD);
+ // Code: [strchar x N]
+ Record.append(MDS->bytes_begin(), MDS->bytes_end());
+
+ // Emit the finished record.
+ Stream.EmitRecord(bitc::METADATA_STRING, Record, MDSAbbrev);
+ Record.clear();
}
// Write named metadata.
- for (Module::const_named_metadata_iterator I = M->named_metadata_begin(),
- E = M->named_metadata_end(); I != E; ++I) {
- const NamedMDNode *NMD = I;
- if (!StartedMetadataBlock) {
- Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
- StartedMetadataBlock = true;
- }
-
+ for (const NamedMDNode &NMD : M->named_metadata()) {
// Write name.
- StringRef Str = NMD->getName();
- for (unsigned i = 0, e = Str.size(); i != e; ++i)
- Record.push_back(Str[i]);
- Stream.EmitRecord(bitc::METADATA_NAME, Record, 0/*TODO*/);
+ StringRef Str = NMD.getName();
+ Record.append(Str.bytes_begin(), Str.bytes_end());
+ Stream.EmitRecord(bitc::METADATA_NAME, Record, NameAbbrev);
Record.clear();
// Write named metadata operands.
- for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
- Record.push_back(VE.getMetadataID(NMD->getOperand(i)));
+ for (const MDNode *N : NMD.operands())
+ Record.push_back(VE.getMetadataID(N));
Stream.EmitRecord(bitc::METADATA_NAMED_NODE, Record, 0);
Record.clear();
}
- if (StartedMetadataBlock)
- Stream.ExitBlock();
+ Stream.ExitBlock();
}
static void WriteFunctionLocalMetadata(const Function &F,
Vals.push_back(DL.getLine());
Vals.push_back(DL.getCol());
- Vals.push_back(Scope ? VE.getMetadataID(Scope) + 1 : 0);
- Vals.push_back(IA ? VE.getMetadataID(IA) + 1 : 0);
+ Vals.push_back(VE.getMetadataOrNullID(Scope));
+ Vals.push_back(VE.getMetadataOrNullID(IA));
Stream.EmitRecord(bitc::FUNC_CODE_DEBUG_LOC, Vals);
Vals.clear();
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