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-rw-r--r--lib/Bitcode/Writer/BitcodeWriter.cpp658
-rw-r--r--lib/Bitcode/Writer/BitcodeWriterPass.cpp4
-rw-r--r--lib/Bitcode/Writer/ValueEnumerator.cpp215
-rw-r--r--lib/Bitcode/Writer/ValueEnumerator.h41
4 files changed, 697 insertions, 221 deletions
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 6cfc357..ecb6f7c 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -17,6 +17,7 @@
#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"
@@ -55,7 +56,8 @@ enum {
FUNCTION_INST_CAST_ABBREV,
FUNCTION_INST_RET_VOID_ABBREV,
FUNCTION_INST_RET_VAL_ABBREV,
- FUNCTION_INST_UNREACHABLE_ABBREV
+ FUNCTION_INST_UNREACHABLE_ABBREV,
+ FUNCTION_INST_GEP_ABBREV,
};
static unsigned GetEncodedCastOpcode(unsigned Opcode) {
@@ -322,7 +324,7 @@ static void WriteTypeTable(const ValueEnumerator &VE, BitstreamWriter &Stream) {
Stream.EnterSubblock(bitc::TYPE_BLOCK_ID_NEW, 4 /*count from # abbrevs */);
SmallVector<uint64_t, 64> TypeVals;
- uint64_t NumBits = Log2_32_Ceil(VE.getTypes().size()+1);
+ uint64_t NumBits = VE.computeBitsRequiredForTypeIndicies();
// Abbrev for TYPE_CODE_POINTER.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
@@ -477,17 +479,28 @@ static void WriteTypeTable(const ValueEnumerator &VE, BitstreamWriter &Stream) {
static unsigned getEncodedLinkage(const GlobalValue &GV) {
switch (GV.getLinkage()) {
- case GlobalValue::ExternalLinkage: return 0;
- case GlobalValue::WeakAnyLinkage: return 1;
- case GlobalValue::AppendingLinkage: return 2;
- case GlobalValue::InternalLinkage: return 3;
- case GlobalValue::LinkOnceAnyLinkage: return 4;
- case GlobalValue::ExternalWeakLinkage: return 7;
- case GlobalValue::CommonLinkage: return 8;
- case GlobalValue::PrivateLinkage: return 9;
- case GlobalValue::WeakODRLinkage: return 10;
- case GlobalValue::LinkOnceODRLinkage: return 11;
- case GlobalValue::AvailableExternallyLinkage: return 12;
+ case GlobalValue::ExternalLinkage:
+ return 0;
+ case GlobalValue::WeakAnyLinkage:
+ return 16;
+ case GlobalValue::AppendingLinkage:
+ return 2;
+ case GlobalValue::InternalLinkage:
+ return 3;
+ case GlobalValue::LinkOnceAnyLinkage:
+ return 18;
+ case GlobalValue::ExternalWeakLinkage:
+ return 7;
+ case GlobalValue::CommonLinkage:
+ return 8;
+ case GlobalValue::PrivateLinkage:
+ return 9;
+ case GlobalValue::WeakODRLinkage:
+ return 17;
+ case GlobalValue::LinkOnceODRLinkage:
+ return 19;
+ case GlobalValue::AvailableExternallyLinkage:
+ return 12;
}
llvm_unreachable("Invalid linkage");
}
@@ -538,11 +551,13 @@ static unsigned getEncodedComdatSelectionKind(const Comdat &C) {
}
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);
@@ -616,7 +631,7 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
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 {
@@ -640,7 +655,8 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
// 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 :
@@ -670,7 +686,8 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
// Emit the function proto information.
for (const Function &F : *M) {
// FUNCTION: [type, callingconv, isproto, linkage, paramattrs, alignment,
- // section, visibility, gc, unnamed_addr, prefix]
+ // section, visibility, gc, unnamed_addr, prologuedata,
+ // dllstorageclass, comdat, prefixdata]
Vals.push_back(VE.getTypeID(F.getType()));
Vals.push_back(F.getCallingConv());
Vals.push_back(F.isDeclaration());
@@ -681,10 +698,12 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
Vals.push_back(getEncodedVisibility(F));
Vals.push_back(F.hasGC() ? GCMap[F.getGC()] : 0);
Vals.push_back(F.hasUnnamedAddr());
- Vals.push_back(F.hasPrefixData() ? (VE.getValueID(F.getPrefixData()) + 1)
- : 0);
+ Vals.push_back(F.hasPrologueData() ? (VE.getValueID(F.getPrologueData()) + 1)
+ : 0);
Vals.push_back(getEncodedDLLStorageClass(F));
Vals.push_back(F.hasComdat() ? VE.getComdatID(F.getComdat()) : 0);
+ Vals.push_back(F.hasPrefixData() ? (VE.getValueID(F.getPrefixData()) + 1)
+ : 0);
unsigned AbbrevToUse = 0;
Stream.EmitRecord(bitc::MODULE_CODE_FUNCTION, Vals, AbbrevToUse);
@@ -734,89 +753,497 @@ static uint64_t GetOptimizationFlags(const Value *V) {
return Flags;
}
-static void WriteMDNode(const MDNode *N,
- const ValueEnumerator &VE,
- BitstreamWriter &Stream,
- SmallVectorImpl<uint64_t> &Record) {
+static void WriteValueAsMetadata(const ValueAsMetadata *MD,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record) {
+ // Mimic an MDNode with a value as one operand.
+ Value *V = MD->getValue();
+ Record.push_back(VE.getTypeID(V->getType()));
+ Record.push_back(VE.getValueID(V));
+ Stream.EmitRecord(bitc::METADATA_VALUE, Record, 0);
+ Record.clear();
+}
+
+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) {
- if (N->getOperand(i)) {
- Record.push_back(VE.getTypeID(N->getOperand(i)->getType()));
- Record.push_back(VE.getValueID(N->getOperand(i)));
- } else {
- Record.push_back(VE.getTypeID(Type::getVoidTy(N->getContext())));
- Record.push_back(0);
- }
+ Metadata *MD = N->getOperand(i);
+ assert(!(MD && isa<LocalAsMetadata>(MD)) &&
+ "Unexpected function-local metadata");
+ Record.push_back(VE.getMetadataOrNullID(MD));
}
- unsigned MDCode = N->isFunctionLocal() ? bitc::METADATA_FN_NODE :
- bitc::METADATA_NODE;
- Stream.EmitRecord(MDCode, Record, 0);
+ Stream.EmitRecord(N->isDistinct() ? bitc::METADATA_DISTINCT_NODE
+ : bitc::METADATA_NODE,
+ 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 *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(VE.getMetadataOrNullID(N->getRawName()));
+ Record.push_back(N->getSizeInBits());
+ Record.push_back(N->getAlignInBits());
+ Record.push_back(N->getEncoding());
+
+ Stream.EmitRecord(bitc::METADATA_BASIC_TYPE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDDerivedType(const MDDerivedType *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(VE.getMetadataOrNullID(N->getRawName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+ Record.push_back(N->getLine());
+ Record.push_back(VE.getMetadataOrNullID(N->getScope()));
+ Record.push_back(VE.getMetadataOrNullID(N->getBaseType()));
+ Record.push_back(N->getSizeInBits());
+ Record.push_back(N->getAlignInBits());
+ Record.push_back(N->getOffsetInBits());
+ Record.push_back(N->getFlags());
+ Record.push_back(VE.getMetadataOrNullID(N->getExtraData()));
+
+ Stream.EmitRecord(bitc::METADATA_DERIVED_TYPE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDCompositeType(const MDCompositeType *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(VE.getMetadataOrNullID(N->getRawName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+ Record.push_back(N->getLine());
+ Record.push_back(VE.getMetadataOrNullID(N->getScope()));
+ Record.push_back(VE.getMetadataOrNullID(N->getBaseType()));
+ Record.push_back(N->getSizeInBits());
+ Record.push_back(N->getAlignInBits());
+ Record.push_back(N->getOffsetInBits());
+ Record.push_back(N->getFlags());
+ Record.push_back(VE.getMetadataOrNullID(N->getElements()));
+ Record.push_back(N->getRuntimeLang());
+ Record.push_back(VE.getMetadataOrNullID(N->getVTableHolder()));
+ Record.push_back(VE.getMetadataOrNullID(N->getTemplateParams()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawIdentifier()));
+
+ Stream.EmitRecord(bitc::METADATA_COMPOSITE_TYPE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDSubroutineType(const MDSubroutineType *N,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(N->getFlags());
+ Record.push_back(VE.getMetadataOrNullID(N->getTypeArray()));
+
+ Stream.EmitRecord(bitc::METADATA_SUBROUTINE_TYPE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDFile(const MDFile *N, const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record, unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(VE.getMetadataOrNullID(N->getRawFilename()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawDirectory()));
+
+ Stream.EmitRecord(bitc::METADATA_FILE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDCompileUnit(const MDCompileUnit *N,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(N->getSourceLanguage());
+ Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawProducer()));
+ Record.push_back(N->isOptimized());
+ Record.push_back(VE.getMetadataOrNullID(N->getRawFlags()));
+ Record.push_back(N->getRuntimeVersion());
+ Record.push_back(VE.getMetadataOrNullID(N->getRawSplitDebugFilename()));
+ Record.push_back(N->getEmissionKind());
+ Record.push_back(VE.getMetadataOrNullID(N->getEnumTypes()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRetainedTypes()));
+ Record.push_back(VE.getMetadataOrNullID(N->getSubprograms()));
+ Record.push_back(VE.getMetadataOrNullID(N->getGlobalVariables()));
+ Record.push_back(VE.getMetadataOrNullID(N->getImportedEntities()));
+
+ Stream.EmitRecord(bitc::METADATA_COMPILE_UNIT, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDSubprogram(const MDSubprogram *N,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(VE.getMetadataOrNullID(N->getScope()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawLinkageName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+ Record.push_back(N->getLine());
+ Record.push_back(VE.getMetadataOrNullID(N->getType()));
+ Record.push_back(N->isLocalToUnit());
+ Record.push_back(N->isDefinition());
+ Record.push_back(N->getScopeLine());
+ Record.push_back(VE.getMetadataOrNullID(N->getContainingType()));
+ Record.push_back(N->getVirtuality());
+ Record.push_back(N->getVirtualIndex());
+ Record.push_back(N->getFlags());
+ Record.push_back(N->isOptimized());
+ Record.push_back(VE.getMetadataOrNullID(N->getFunction()));
+ Record.push_back(VE.getMetadataOrNullID(N->getTemplateParams()));
+ Record.push_back(VE.getMetadataOrNullID(N->getDeclaration()));
+ Record.push_back(VE.getMetadataOrNullID(N->getVariables()));
+
+ Stream.EmitRecord(bitc::METADATA_SUBPROGRAM, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDLexicalBlock(const MDLexicalBlock *N,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(VE.getMetadataOrNullID(N->getScope()));
+ Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+ Record.push_back(N->getLine());
+ Record.push_back(N->getColumn());
+
+ Stream.EmitRecord(bitc::METADATA_LEXICAL_BLOCK, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDLexicalBlockFile(const MDLexicalBlockFile *N,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(VE.getMetadataOrNullID(N->getScope()));
+ Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+ Record.push_back(N->getDiscriminator());
+
+ Stream.EmitRecord(bitc::METADATA_LEXICAL_BLOCK_FILE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDNamespace(const MDNamespace *N, const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(VE.getMetadataOrNullID(N->getScope()));
+ Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
+ Record.push_back(N->getLine());
+
+ Stream.EmitRecord(bitc::METADATA_NAMESPACE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDTemplateTypeParameter(const MDTemplateTypeParameter *N,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getType()));
+
+ Stream.EmitRecord(bitc::METADATA_TEMPLATE_TYPE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDTemplateValueParameter(const MDTemplateValueParameter *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(VE.getMetadataOrNullID(N->getRawName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getType()));
+ Record.push_back(VE.getMetadataOrNullID(N->getValue()));
+
+ Stream.EmitRecord(bitc::METADATA_TEMPLATE_VALUE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDGlobalVariable(const MDGlobalVariable *N,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(VE.getMetadataOrNullID(N->getScope()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawLinkageName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+ Record.push_back(N->getLine());
+ Record.push_back(VE.getMetadataOrNullID(N->getType()));
+ Record.push_back(N->isLocalToUnit());
+ Record.push_back(N->isDefinition());
+ Record.push_back(VE.getMetadataOrNullID(N->getVariable()));
+ Record.push_back(VE.getMetadataOrNullID(N->getStaticDataMemberDeclaration()));
+
+ Stream.EmitRecord(bitc::METADATA_GLOBAL_VAR, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDLocalVariable(const MDLocalVariable *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(VE.getMetadataOrNullID(N->getScope()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+ Record.push_back(N->getLine());
+ Record.push_back(VE.getMetadataOrNullID(N->getType()));
+ Record.push_back(N->getArg());
+ Record.push_back(N->getFlags());
+ Record.push_back(VE.getMetadataOrNullID(N->getInlinedAt()));
+
+ Stream.EmitRecord(bitc::METADATA_LOCAL_VAR, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDExpression(const MDExpression *N, const ValueEnumerator &,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.reserve(N->getElements().size() + 1);
+
+ Record.push_back(N->isDistinct());
+ Record.append(N->elements_begin(), N->elements_end());
+
+ Stream.EmitRecord(bitc::METADATA_EXPRESSION, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDObjCProperty(const MDObjCProperty *N,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream,
+ SmallVectorImpl<uint64_t> &Record,
+ unsigned Abbrev) {
+ Record.push_back(N->isDistinct());
+ Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getFile()));
+ Record.push_back(N->getLine());
+ Record.push_back(VE.getMetadataOrNullID(N->getRawSetterName()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawGetterName()));
+ Record.push_back(N->getAttributes());
+ Record.push_back(VE.getMetadataOrNullID(N->getType()));
+
+ Stream.EmitRecord(bitc::METADATA_OBJC_PROPERTY, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteMDImportedEntity(const MDImportedEntity *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(VE.getMetadataOrNullID(N->getScope()));
+ Record.push_back(VE.getMetadataOrNullID(N->getEntity()));
+ Record.push_back(N->getLine());
+ Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
+
+ Stream.EmitRecord(bitc::METADATA_IMPORTED_ENTITY, Record, Abbrev);
Record.clear();
}
static void WriteModuleMetadata(const Module *M,
const ValueEnumerator &VE,
BitstreamWriter &Stream) {
- const auto &Vals = VE.getMDValues();
- bool StartedMetadataBlock = false;
+ const auto &MDs = VE.getMDs();
+ if (MDs.empty() && M->named_metadata_empty())
+ return;
+
+ Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
+
unsigned MDSAbbrev = 0;
- SmallVector<uint64_t, 64> Record;
- for (unsigned i = 0, e = Vals.size(); i != e; ++i) {
+ 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);
+ }
- if (const MDNode *N = dyn_cast<MDNode>(Vals[i])) {
- if (!N->isFunctionLocal() || !N->getFunction()) {
- if (!StartedMetadataBlock) {
- Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
- StartedMetadataBlock = true;
- }
- WriteMDNode(N, VE, Stream, Record);
- }
- } else if (const MDString *MDS = dyn_cast<MDString>(Vals[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;
- }
+ // Initialize MDNode abbreviations.
+#define HANDLE_MDNODE_LEAF(CLASS) unsigned CLASS##Abbrev = 0;
+#include "llvm/IR/Metadata.def"
- // Code: [strchar x N]
- Record.append(MDS->begin(), MDS->end());
+ 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);
+ }
- // Emit the finished record.
- Stream.EmitRecord(bitc::METADATA_STRING, Record, MDSAbbrev);
- Record.clear();
- }
+ 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);
}
- // 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;
+ 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 (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);
+ 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 (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.getValueID(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,
@@ -824,16 +1251,16 @@ static void WriteFunctionLocalMetadata(const Function &F,
BitstreamWriter &Stream) {
bool StartedMetadataBlock = false;
SmallVector<uint64_t, 64> Record;
- const SmallVectorImpl<const MDNode *> &Vals = VE.getFunctionLocalMDValues();
- for (unsigned i = 0, e = Vals.size(); i != e; ++i)
- if (const MDNode *N = Vals[i])
- if (N->isFunctionLocal() && N->getFunction() == &F) {
- if (!StartedMetadataBlock) {
- Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
- StartedMetadataBlock = true;
- }
- WriteMDNode(N, VE, Stream, Record);
- }
+ const SmallVectorImpl<const LocalAsMetadata *> &MDs =
+ VE.getFunctionLocalMDs();
+ for (unsigned i = 0, e = MDs.size(); i != e; ++i) {
+ assert(MDs[i] && "Expected valid function-local metadata");
+ if (!StartedMetadataBlock) {
+ Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
+ StartedMetadataBlock = true;
+ }
+ WriteValueAsMetadata(MDs[i], VE, Stream, Record);
+ }
if (StartedMetadataBlock)
Stream.ExitBlock();
@@ -863,7 +1290,7 @@ static void WriteMetadataAttachment(const Function &F,
for (unsigned i = 0, e = MDs.size(); i != e; ++i) {
Record.push_back(MDs[i].first);
- Record.push_back(VE.getValueID(MDs[i].second));
+ Record.push_back(VE.getMetadataID(MDs[i].second));
}
Stream.EmitRecord(bitc::METADATA_ATTACHMENT, Record, 0);
Record.clear();
@@ -966,14 +1393,12 @@ static void WriteConstants(unsigned FirstVal, unsigned LastVal,
// Add the asm string.
const std::string &AsmStr = IA->getAsmString();
Record.push_back(AsmStr.size());
- for (unsigned i = 0, e = AsmStr.size(); i != e; ++i)
- Record.push_back(AsmStr[i]);
+ Record.append(AsmStr.begin(), AsmStr.end());
// Add the constraint string.
const std::string &ConstraintStr = IA->getConstraintString();
Record.push_back(ConstraintStr.size());
- for (unsigned i = 0, e = ConstraintStr.size(); i != e; ++i)
- Record.push_back(ConstraintStr[i]);
+ Record.append(ConstraintStr.begin(), ConstraintStr.end());
Stream.EmitRecord(bitc::CST_CODE_INLINEASM, Record);
Record.clear();
continue;
@@ -1251,19 +1676,21 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
}
break;
- case Instruction::GetElementPtr:
+ case Instruction::GetElementPtr: {
Code = bitc::FUNC_CODE_INST_GEP;
- if (cast<GEPOperator>(&I)->isInBounds())
- Code = bitc::FUNC_CODE_INST_INBOUNDS_GEP;
+ AbbrevToUse = FUNCTION_INST_GEP_ABBREV;
+ auto &GEPInst = cast<GetElementPtrInst>(I);
+ Vals.push_back(GEPInst.isInBounds());
+ Vals.push_back(VE.getTypeID(GEPInst.getSourceElementType()));
for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
PushValueAndType(I.getOperand(i), InstID, Vals, VE);
break;
+ }
case Instruction::ExtractValue: {
Code = bitc::FUNC_CODE_INST_EXTRACTVAL;
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
const ExtractValueInst *EVI = cast<ExtractValueInst>(&I);
- for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i)
- Vals.push_back(*i);
+ Vals.append(EVI->idx_begin(), EVI->idx_end());
break;
}
case Instruction::InsertValue: {
@@ -1271,8 +1698,7 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
PushValueAndType(I.getOperand(1), InstID, Vals, VE);
const InsertValueInst *IVI = cast<InsertValueInst>(&I);
- for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i)
- Vals.push_back(*i);
+ Vals.append(IVI->idx_begin(), IVI->idx_end());
break;
}
case Instruction::Select:
@@ -1449,6 +1875,7 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) // ptr
AbbrevToUse = FUNCTION_INST_LOAD_ABBREV;
}
+ Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(Log2_32(cast<LoadInst>(I).getAlignment())+1);
Vals.push_back(cast<LoadInst>(I).isVolatile());
if (cast<LoadInst>(I).isAtomic()) {
@@ -1608,9 +2035,7 @@ static void WriteUseList(ValueEnumerator &VE, UseListOrder &&Order,
else
Code = bitc::USELIST_CODE_DEFAULT;
- SmallVector<uint64_t, 64> Record;
- for (unsigned I : Order.Shuffle)
- Record.push_back(I);
+ SmallVector<uint64_t, 64> Record(Order.Shuffle.begin(), Order.Shuffle.end());
Record.push_back(VE.getValueID(Order.V));
Stream.EmitRecord(Code, Record);
}
@@ -1683,11 +2108,12 @@ static void WriteFunction(const Function &F, ValueEnumerator &VE,
} else {
MDNode *Scope, *IA;
DL.getScopeAndInlinedAt(Scope, IA, I->getContext());
+ assert(Scope && "Expected valid scope");
Vals.push_back(DL.getLine());
Vals.push_back(DL.getCol());
- Vals.push_back(Scope ? VE.getValueID(Scope)+1 : 0);
- Vals.push_back(IA ? VE.getValueID(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();
@@ -1761,7 +2187,7 @@ static void WriteBlockInfo(const ValueEnumerator &VE, BitstreamWriter &Stream) {
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_SETTYPE));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed,
- Log2_32_Ceil(VE.getTypes().size()+1)));
+ VE.computeBitsRequiredForTypeIndicies()));
if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID,
Abbv) != CONSTANTS_SETTYPE_ABBREV)
llvm_unreachable("Unexpected abbrev ordering!");
@@ -1781,7 +2207,7 @@ static void WriteBlockInfo(const ValueEnumerator &VE, BitstreamWriter &Stream) {
Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CE_CAST));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // cast opc
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // typeid
- Log2_32_Ceil(VE.getTypes().size()+1)));
+ VE.computeBitsRequiredForTypeIndicies()));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // value id
if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID,
@@ -1802,6 +2228,8 @@ static void WriteBlockInfo(const ValueEnumerator &VE, BitstreamWriter &Stream) {
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_LOAD));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Ptr
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // dest ty
+ VE.computeBitsRequiredForTypeIndicies()));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 4)); // Align
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // volatile
if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
@@ -1834,7 +2262,7 @@ static void WriteBlockInfo(const ValueEnumerator &VE, BitstreamWriter &Stream) {
Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_CAST));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // OpVal
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // dest ty
- Log2_32_Ceil(VE.getTypes().size()+1)));
+ VE.computeBitsRequiredForTypeIndicies()));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc
if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
Abbv) != FUNCTION_INST_CAST_ABBREV)
@@ -1863,6 +2291,18 @@ static void WriteBlockInfo(const ValueEnumerator &VE, BitstreamWriter &Stream) {
Abbv) != FUNCTION_INST_UNREACHABLE_ABBREV)
llvm_unreachable("Unexpected abbrev ordering!");
}
+ {
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_GEP));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // dest ty
+ Log2_32_Ceil(VE.getTypes().size() + 1)));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
+ if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, Abbv) !=
+ FUNCTION_INST_GEP_ABBREV)
+ llvm_unreachable("Unexpected abbrev ordering!");
+ }
Stream.ExitBlock();
}
diff --git a/lib/Bitcode/Writer/BitcodeWriterPass.cpp b/lib/Bitcode/Writer/BitcodeWriterPass.cpp
index 4167f6d..25456a4 100644
--- a/lib/Bitcode/Writer/BitcodeWriterPass.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriterPass.cpp
@@ -18,8 +18,8 @@
#include "llvm/Pass.h"
using namespace llvm;
-PreservedAnalyses BitcodeWriterPass::run(Module *M) {
- WriteBitcodeToFile(M, OS);
+PreservedAnalyses BitcodeWriterPass::run(Module &M) {
+ WriteBitcodeToFile(&M, OS);
return PreservedAnalyses::all();
}
diff --git a/lib/Bitcode/Writer/ValueEnumerator.cpp b/lib/Bitcode/Writer/ValueEnumerator.cpp
index f065c83..549e94f 100644
--- a/lib/Bitcode/Writer/ValueEnumerator.cpp
+++ b/lib/Bitcode/Writer/ValueEnumerator.cpp
@@ -15,6 +15,7 @@
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/IR/Constants.h"
+#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Module.h"
@@ -85,10 +86,14 @@ static OrderMap orderModule(const Module &M) {
for (const GlobalAlias &A : M.aliases())
if (!isa<GlobalValue>(A.getAliasee()))
orderValue(A.getAliasee(), OM);
- for (const Function &F : M)
+ for (const Function &F : M) {
if (F.hasPrefixData())
if (!isa<GlobalValue>(F.getPrefixData()))
orderValue(F.getPrefixData(), OM);
+ if (F.hasPrologueData())
+ if (!isa<GlobalValue>(F.getPrologueData()))
+ orderValue(F.getPrologueData(), OM);
+ }
OM.LastGlobalConstantID = OM.size();
// Initializers of GlobalValues are processed in
@@ -264,9 +269,12 @@ static UseListOrderStack predictUseListOrder(const Module &M) {
predictValueUseListOrder(G.getInitializer(), nullptr, OM, Stack);
for (const GlobalAlias &A : M.aliases())
predictValueUseListOrder(A.getAliasee(), nullptr, OM, Stack);
- for (const Function &F : M)
+ for (const Function &F : M) {
if (F.hasPrefixData())
predictValueUseListOrder(F.getPrefixData(), nullptr, OM, Stack);
+ if (F.hasPrologueData())
+ predictValueUseListOrder(F.getPrologueData(), nullptr, OM, Stack);
+ }
return Stack;
}
@@ -275,7 +283,8 @@ static bool isIntOrIntVectorValue(const std::pair<const Value*, unsigned> &V) {
return V.first->getType()->isIntOrIntVectorTy();
}
-ValueEnumerator::ValueEnumerator(const Module &M) {
+ValueEnumerator::ValueEnumerator(const Module &M)
+ : HasMDString(false), HasMDLocation(false), HasGenericDebugNode(false) {
if (shouldPreserveBitcodeUseListOrder())
UseListOrders = predictUseListOrder(M);
@@ -314,6 +323,17 @@ ValueEnumerator::ValueEnumerator(const Module &M) {
if (I->hasPrefixData())
EnumerateValue(I->getPrefixData());
+ // Enumerate the prologue data constants.
+ for (Module::const_iterator I = M.begin(), E = M.end(); I != E; ++I)
+ if (I->hasPrologueData())
+ EnumerateValue(I->getPrologueData());
+
+ // Enumerate the metadata type.
+ //
+ // TODO: Move this to ValueEnumerator::EnumerateOperandType() once bitcode
+ // only encodes the metadata type when it's used as a value.
+ EnumerateType(Type::getMetadataTy(M.getContext()));
+
// Insert constants and metadata that are named at module level into the slot
// pool so that the module symbol table can refer to them...
EnumerateValueSymbolTable(M.getValueSymbolTable());
@@ -329,11 +349,17 @@ ValueEnumerator::ValueEnumerator(const Module &M) {
for (const BasicBlock &BB : F)
for (const Instruction &I : BB) {
for (const Use &Op : I.operands()) {
- if (MDNode *MD = dyn_cast<MDNode>(&Op))
- if (MD->isFunctionLocal() && MD->getFunction())
- // These will get enumerated during function-incorporation.
- continue;
- EnumerateOperandType(Op);
+ auto *MD = dyn_cast<MetadataAsValue>(&Op);
+ if (!MD) {
+ EnumerateOperandType(Op);
+ continue;
+ }
+
+ // Local metadata is enumerated during function-incorporation.
+ if (isa<LocalAsMetadata>(MD->getMetadata()))
+ continue;
+
+ EnumerateMetadata(MD->getMetadata());
}
EnumerateType(I.getType());
if (const CallInst *CI = dyn_cast<CallInst>(&I))
@@ -377,11 +403,8 @@ void ValueEnumerator::setInstructionID(const Instruction *I) {
}
unsigned ValueEnumerator::getValueID(const Value *V) const {
- if (isa<MDNode>(V) || isa<MDString>(V)) {
- ValueMapType::const_iterator I = MDValueMap.find(V);
- assert(I != MDValueMap.end() && "Value not in slotcalculator!");
- return I->second-1;
- }
+ if (auto *MD = dyn_cast<MetadataAsValue>(V))
+ return getMetadataID(MD->getMetadata());
ValueMapType::const_iterator I = ValueMap.find(V);
assert(I != ValueMap.end() && "Value not in slotcalculator!");
@@ -424,6 +447,18 @@ void ValueEnumerator::print(raw_ostream &OS, const ValueMapType &Map,
}
}
+void ValueEnumerator::print(raw_ostream &OS, const MetadataMapType &Map,
+ const char *Name) const {
+
+ OS << "Map Name: " << Name << "\n";
+ OS << "Size: " << Map.size() << "\n";
+ for (auto I = Map.begin(), E = Map.end(); I != E; ++I) {
+ const Metadata *MD = I->first;
+ OS << "Metadata: slot = " << I->second << "\n";
+ MD->print(OS);
+ }
+}
+
/// OptimizeConstants - Reorder constant pool for denser encoding.
void ValueEnumerator::OptimizeConstants(unsigned CstStart, unsigned CstEnd) {
if (CstStart == CstEnd || CstStart+1 == CstEnd) return;
@@ -481,25 +516,18 @@ void ValueEnumerator::EnumerateNamedMDNode(const NamedMDNode *MD) {
/// and types referenced by the given MDNode.
void ValueEnumerator::EnumerateMDNodeOperands(const MDNode *N) {
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
- if (Value *V = N->getOperand(i)) {
- if (isa<MDNode>(V) || isa<MDString>(V))
- EnumerateMetadata(V);
- else if (!isa<Instruction>(V) && !isa<Argument>(V))
- EnumerateValue(V);
- } else
- EnumerateType(Type::getVoidTy(N->getContext()));
+ Metadata *MD = N->getOperand(i);
+ if (!MD)
+ continue;
+ assert(!isa<LocalAsMetadata>(MD) && "MDNodes cannot be function-local");
+ EnumerateMetadata(MD);
}
}
-void ValueEnumerator::EnumerateMetadata(const Value *MD) {
- assert((isa<MDNode>(MD) || isa<MDString>(MD)) && "Invalid metadata kind");
-
- // Skip function-local nodes themselves, but walk their operands.
- const MDNode *N = dyn_cast<MDNode>(MD);
- if (N && N->isFunctionLocal() && N->getFunction()) {
- EnumerateMDNodeOperands(N);
- return;
- }
+void ValueEnumerator::EnumerateMetadata(const Metadata *MD) {
+ assert(
+ (isa<MDNode>(MD) || isa<MDString>(MD) || isa<ConstantAsMetadata>(MD)) &&
+ "Invalid metadata kind");
// Insert a dummy ID to block the co-recursive call to
// EnumerateMDNodeOperands() from re-visiting MD in a cyclic graph.
@@ -508,55 +536,43 @@ void ValueEnumerator::EnumerateMetadata(const Value *MD) {
if (!MDValueMap.insert(std::make_pair(MD, 0)).second)
return;
- // Enumerate the type of this value.
- EnumerateType(MD->getType());
-
// Visit operands first to minimize RAUW.
- if (N)
+ if (auto *N = dyn_cast<MDNode>(MD))
EnumerateMDNodeOperands(N);
+ else if (auto *C = dyn_cast<ConstantAsMetadata>(MD))
+ EnumerateValue(C->getValue());
+
+ HasMDString |= isa<MDString>(MD);
+ HasMDLocation |= isa<MDLocation>(MD);
+ HasGenericDebugNode |= isa<GenericDebugNode>(MD);
// Replace the dummy ID inserted above with the correct one. MDValueMap may
// have changed by inserting operands, so we need a fresh lookup here.
- MDValues.push_back(MD);
- MDValueMap[MD] = MDValues.size();
+ MDs.push_back(MD);
+ MDValueMap[MD] = MDs.size();
}
/// EnumerateFunctionLocalMetadataa - Incorporate function-local metadata
-/// information reachable from the given MDNode.
-void ValueEnumerator::EnumerateFunctionLocalMetadata(const MDNode *N) {
- assert(N->isFunctionLocal() && N->getFunction() &&
- "EnumerateFunctionLocalMetadata called on non-function-local mdnode!");
-
- // Enumerate the type of this value.
- EnumerateType(N->getType());
-
+/// information reachable from the metadata.
+void ValueEnumerator::EnumerateFunctionLocalMetadata(
+ const LocalAsMetadata *Local) {
// Check to see if it's already in!
- unsigned &MDValueID = MDValueMap[N];
+ unsigned &MDValueID = MDValueMap[Local];
if (MDValueID)
return;
- MDValues.push_back(N);
- MDValueID = MDValues.size();
-
- // To incoroporate function-local information visit all function-local
- // MDNodes and all function-local values they reference.
- for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
- if (Value *V = N->getOperand(i)) {
- if (MDNode *O = dyn_cast<MDNode>(V)) {
- if (O->isFunctionLocal() && O->getFunction())
- EnumerateFunctionLocalMetadata(O);
- } else if (isa<Instruction>(V) || isa<Argument>(V))
- EnumerateValue(V);
- }
+ MDs.push_back(Local);
+ MDValueID = MDs.size();
+
+ EnumerateValue(Local->getValue());
- // Also, collect all function-local MDNodes for easy access.
- FunctionLocalMDs.push_back(N);
+ // Also, collect all function-local metadata for easy access.
+ FunctionLocalMDs.push_back(Local);
}
void ValueEnumerator::EnumerateValue(const Value *V) {
assert(!V->getType()->isVoidTy() && "Can't insert void values!");
- assert(!isa<MDNode>(V) && !isa<MDString>(V) &&
- "EnumerateValue doesn't handle Metadata!");
+ assert(!isa<MetadataAsValue>(V) && "EnumerateValue doesn't handle Metadata!");
// Check to see if it's already in!
unsigned &ValueID = ValueMap[V];
@@ -620,9 +636,8 @@ void ValueEnumerator::EnumerateType(Type *Ty) {
// Enumerate all of the subtypes before we enumerate this type. This ensures
// that the type will be enumerated in an order that can be directly built.
- for (Type::subtype_iterator I = Ty->subtype_begin(), E = Ty->subtype_end();
- I != E; ++I)
- EnumerateType(*I);
+ for (Type *SubTy : Ty->subtypes())
+ EnumerateType(SubTy);
// Refresh the TypeID pointer in case the table rehashed.
TypeID = &TypeMap[Ty];
@@ -646,30 +661,35 @@ void ValueEnumerator::EnumerateType(Type *Ty) {
void ValueEnumerator::EnumerateOperandType(const Value *V) {
EnumerateType(V->getType());
- if (const Constant *C = dyn_cast<Constant>(V)) {
- // If this constant is already enumerated, ignore it, we know its type must
- // be enumerated.
- if (ValueMap.count(V)) return;
+ if (auto *MD = dyn_cast<MetadataAsValue>(V)) {
+ assert(!isa<LocalAsMetadata>(MD->getMetadata()) &&
+ "Function-local metadata should be left for later");
+
+ EnumerateMetadata(MD->getMetadata());
+ return;
+ }
- // This constant may have operands, make sure to enumerate the types in
- // them.
- for (unsigned i = 0, e = C->getNumOperands(); i != e; ++i) {
- const Value *Op = C->getOperand(i);
+ const Constant *C = dyn_cast<Constant>(V);
+ if (!C)
+ return;
- // Don't enumerate basic blocks here, this happens as operands to
- // blockaddress.
- if (isa<BasicBlock>(Op)) continue;
+ // If this constant is already enumerated, ignore it, we know its type must
+ // be enumerated.
+ if (ValueMap.count(C))
+ return;
- EnumerateOperandType(Op);
- }
+ // This constant may have operands, make sure to enumerate the types in
+ // them.
+ for (unsigned i = 0, e = C->getNumOperands(); i != e; ++i) {
+ const Value *Op = C->getOperand(i);
- if (const MDNode *N = dyn_cast<MDNode>(V)) {
- for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
- if (Value *Elem = N->getOperand(i))
- EnumerateOperandType(Elem);
- }
- } else if (isa<MDString>(V) || isa<MDNode>(V))
- EnumerateMetadata(V);
+ // Don't enumerate basic blocks here, this happens as operands to
+ // blockaddress.
+ if (isa<BasicBlock>(Op))
+ continue;
+
+ EnumerateOperandType(Op);
+ }
}
void ValueEnumerator::EnumerateAttributes(AttributeSet PAL) {
@@ -697,7 +717,7 @@ void ValueEnumerator::EnumerateAttributes(AttributeSet PAL) {
void ValueEnumerator::incorporateFunction(const Function &F) {
InstructionCount = 0;
NumModuleValues = Values.size();
- NumModuleMDValues = MDValues.size();
+ NumModuleMDs = MDs.size();
// Adding function arguments to the value table.
for (Function::const_arg_iterator I = F.arg_begin(), E = F.arg_end();
@@ -728,24 +748,16 @@ void ValueEnumerator::incorporateFunction(const Function &F) {
FirstInstID = Values.size();
- SmallVector<MDNode *, 8> FnLocalMDVector;
+ SmallVector<LocalAsMetadata *, 8> FnLocalMDVector;
// Add all of the instructions.
for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB) {
for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E; ++I) {
for (User::const_op_iterator OI = I->op_begin(), E = I->op_end();
OI != E; ++OI) {
- if (MDNode *MD = dyn_cast<MDNode>(*OI))
- if (MD->isFunctionLocal() && MD->getFunction())
+ if (auto *MD = dyn_cast<MetadataAsValue>(&*OI))
+ if (auto *Local = dyn_cast<LocalAsMetadata>(MD->getMetadata()))
// Enumerate metadata after the instructions they might refer to.
- FnLocalMDVector.push_back(MD);
- }
-
- SmallVector<std::pair<unsigned, MDNode *>, 8> MDs;
- I->getAllMetadataOtherThanDebugLoc(MDs);
- for (unsigned i = 0, e = MDs.size(); i != e; ++i) {
- MDNode *N = MDs[i].second;
- if (N->isFunctionLocal() && N->getFunction())
- FnLocalMDVector.push_back(N);
+ FnLocalMDVector.push_back(Local);
}
if (!I->getType()->isVoidTy())
@@ -762,13 +774,13 @@ void ValueEnumerator::purgeFunction() {
/// Remove purged values from the ValueMap.
for (unsigned i = NumModuleValues, e = Values.size(); i != e; ++i)
ValueMap.erase(Values[i].first);
- for (unsigned i = NumModuleMDValues, e = MDValues.size(); i != e; ++i)
- MDValueMap.erase(MDValues[i]);
+ for (unsigned i = NumModuleMDs, e = MDs.size(); i != e; ++i)
+ MDValueMap.erase(MDs[i]);
for (unsigned i = 0, e = BasicBlocks.size(); i != e; ++i)
ValueMap.erase(BasicBlocks[i]);
Values.resize(NumModuleValues);
- MDValues.resize(NumModuleMDValues);
+ MDs.resize(NumModuleMDs);
BasicBlocks.clear();
FunctionLocalMDs.clear();
}
@@ -792,3 +804,6 @@ unsigned ValueEnumerator::getGlobalBasicBlockID(const BasicBlock *BB) const {
return getGlobalBasicBlockID(BB);
}
+uint64_t ValueEnumerator::computeBitsRequiredForTypeIndicies() const {
+ return Log2_32_Ceil(getTypes().size() + 1);
+}
diff --git a/lib/Bitcode/Writer/ValueEnumerator.h b/lib/Bitcode/Writer/ValueEnumerator.h
index 563c214..b94c370 100644
--- a/lib/Bitcode/Writer/ValueEnumerator.h
+++ b/lib/Bitcode/Writer/ValueEnumerator.h
@@ -30,6 +30,8 @@ class BasicBlock;
class Comdat;
class Function;
class Module;
+class Metadata;
+class LocalAsMetadata;
class MDNode;
class NamedMDNode;
class AttributeSet;
@@ -58,9 +60,13 @@ private:
typedef UniqueVector<const Comdat *> ComdatSetType;
ComdatSetType Comdats;
- std::vector<const Value *> MDValues;
- SmallVector<const MDNode *, 8> FunctionLocalMDs;
- ValueMapType MDValueMap;
+ std::vector<const Metadata *> MDs;
+ SmallVector<const LocalAsMetadata *, 8> FunctionLocalMDs;
+ typedef DenseMap<const Metadata *, unsigned> MetadataMapType;
+ MetadataMapType MDValueMap;
+ bool HasMDString;
+ bool HasMDLocation;
+ bool HasGenericDebugNode;
typedef DenseMap<AttributeSet, unsigned> AttributeGroupMapType;
AttributeGroupMapType AttributeGroupMap;
@@ -88,20 +94,34 @@ private:
/// When a function is incorporated, this is the size of the MDValues list
/// before incorporation.
- unsigned NumModuleMDValues;
+ unsigned NumModuleMDs;
unsigned FirstFuncConstantID;
unsigned FirstInstID;
- ValueEnumerator(const ValueEnumerator &) LLVM_DELETED_FUNCTION;
- void operator=(const ValueEnumerator &) LLVM_DELETED_FUNCTION;
+ ValueEnumerator(const ValueEnumerator &) = delete;
+ void operator=(const ValueEnumerator &) = delete;
public:
ValueEnumerator(const Module &M);
void dump() const;
void print(raw_ostream &OS, const ValueMapType &Map, const char *Name) const;
+ void print(raw_ostream &OS, const MetadataMapType &Map,
+ const char *Name) const;
unsigned getValueID(const Value *V) const;
+ unsigned getMetadataID(const Metadata *MD) const {
+ auto ID = getMetadataOrNullID(MD);
+ assert(ID != 0 && "Metadata not in slotcalculator!");
+ return ID - 1;
+ }
+ unsigned getMetadataOrNullID(const Metadata *MD) const {
+ return MDValueMap.lookup(MD);
+ }
+
+ bool hasMDString() const { return HasMDString; }
+ bool hasMDLocation() const { return HasMDLocation; }
+ bool hasGenericDebugNode() const { return HasGenericDebugNode; }
unsigned getTypeID(Type *T) const {
TypeMapType::const_iterator I = TypeMap.find(T);
@@ -134,8 +154,8 @@ public:
}
const ValueList &getValues() const { return Values; }
- const std::vector<const Value *> &getMDValues() const { return MDValues; }
- const SmallVectorImpl<const MDNode *> &getFunctionLocalMDValues() const {
+ const std::vector<const Metadata *> &getMDs() const { return MDs; }
+ const SmallVectorImpl<const LocalAsMetadata *> &getFunctionLocalMDs() const {
return FunctionLocalMDs;
}
const TypeList &getTypes() const { return Types; }
@@ -162,13 +182,14 @@ public:
///
void incorporateFunction(const Function &F);
void purgeFunction();
+ uint64_t computeBitsRequiredForTypeIndicies() const;
private:
void OptimizeConstants(unsigned CstStart, unsigned CstEnd);
void EnumerateMDNodeOperands(const MDNode *N);
- void EnumerateMetadata(const Value *MD);
- void EnumerateFunctionLocalMetadata(const MDNode *N);
+ void EnumerateMetadata(const Metadata *MD);
+ void EnumerateFunctionLocalMetadata(const LocalAsMetadata *Local);
void EnumerateNamedMDNode(const NamedMDNode *NMD);
void EnumerateValue(const Value *V);
void EnumerateType(Type *T);
generated by cgit v1.1 at 2024-12-22 16:12:04 +0000