#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"
#include "llvm/IR/Module.h"
#include "llvm/IR/Operator.h"
+#include "llvm/IR/UseListOrder.h"
#include "llvm/IR/ValueSymbolTable.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include <map>
using namespace llvm;
-static cl::opt<bool>
-EnablePreserveUseListOrdering("enable-bc-uselist-preserve",
- cl::desc("Turn on experimental support for "
- "use-list order preservation."),
- cl::init(false), cl::Hidden);
-
/// These are manifest constants used by the bitcode writer. They do not need to
/// be kept in sync with the reader, but need to be consistent within this file.
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) {
return bitc::ATTR_KIND_BUILTIN;
case Attribute::ByVal:
return bitc::ATTR_KIND_BY_VAL;
+ case Attribute::Convergent:
+ return bitc::ATTR_KIND_CONVERGENT;
case Attribute::InAlloca:
return bitc::ATTR_KIND_IN_ALLOCA;
case Attribute::Cold:
return bitc::ATTR_KIND_INLINE_HINT;
case Attribute::InReg:
return bitc::ATTR_KIND_IN_REG;
+ case Attribute::JumpTable:
+ return bitc::ATTR_KIND_JUMP_TABLE;
case Attribute::MinSize:
return bitc::ATTR_KIND_MIN_SIZE;
case Attribute::Naked:
return bitc::ATTR_KIND_NO_INLINE;
case Attribute::NonLazyBind:
return bitc::ATTR_KIND_NON_LAZY_BIND;
+ case Attribute::NonNull:
+ return bitc::ATTR_KIND_NON_NULL;
+ case Attribute::Dereferenceable:
+ return bitc::ATTR_KIND_DEREFERENCEABLE;
+ case Attribute::DereferenceableOrNull:
+ return bitc::ATTR_KIND_DEREFERENCEABLE_OR_NULL;
case Attribute::NoRedZone:
return bitc::ATTR_KIND_NO_RED_ZONE;
case Attribute::NoReturn:
return bitc::ATTR_KIND_STACK_PROTECT_REQ;
case Attribute::StackProtectStrong:
return bitc::ATTR_KIND_STACK_PROTECT_STRONG;
+ case Attribute::SafeStack:
+ return bitc::ATTR_KIND_SAFESTACK;
case Attribute::StructRet:
return bitc::ATTR_KIND_STRUCT_RET;
case Attribute::SanitizeAddress:
if (Attr.isEnumAttribute()) {
Record.push_back(0);
Record.push_back(getAttrKindEncoding(Attr.getKindAsEnum()));
- } else if (Attr.isAlignAttribute()) {
+ } else if (Attr.isIntAttribute()) {
Record.push_back(1);
Record.push_back(getAttrKindEncoding(Attr.getKindAsEnum()));
Record.push_back(Attr.getValueAsInt());
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();
Stream.ExitBlock();
}
-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;
+static unsigned getEncodedLinkage(const GlobalValue &GV) {
+ switch (GV.getLinkage()) {
+ 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");
}
-static unsigned getEncodedVisibility(const GlobalValue *GV) {
- switch (GV->getVisibility()) {
+static unsigned getEncodedVisibility(const GlobalValue &GV) {
+ switch (GV.getVisibility()) {
case GlobalValue::DefaultVisibility: return 0;
case GlobalValue::HiddenVisibility: return 1;
case GlobalValue::ProtectedVisibility: return 2;
llvm_unreachable("Invalid visibility");
}
-static unsigned getEncodedDLLStorageClass(const GlobalValue *GV) {
- switch (GV->getDLLStorageClass()) {
+static unsigned getEncodedDLLStorageClass(const GlobalValue &GV) {
+ switch (GV.getDLLStorageClass()) {
case GlobalValue::DefaultStorageClass: return 0;
case GlobalValue::DLLImportStorageClass: return 1;
case GlobalValue::DLLExportStorageClass: return 2;
llvm_unreachable("Invalid DLL storage class");
}
-static unsigned getEncodedThreadLocalMode(const GlobalVariable *GV) {
- switch (GV->getThreadLocalMode()) {
+static unsigned getEncodedThreadLocalMode(const GlobalValue &GV) {
+ switch (GV.getThreadLocalMode()) {
case GlobalVariable::NotThreadLocal: return 0;
case GlobalVariable::GeneralDynamicTLSModel: return 1;
case GlobalVariable::LocalDynamicTLSModel: return 2;
llvm_unreachable("Invalid TLS model");
}
+static unsigned getEncodedComdatSelectionKind(const Comdat &C) {
+ switch (C.getSelectionKind()) {
+ case Comdat::Any:
+ return bitc::COMDAT_SELECTION_KIND_ANY;
+ case Comdat::ExactMatch:
+ return bitc::COMDAT_SELECTION_KIND_EXACT_MATCH;
+ case Comdat::Largest:
+ return bitc::COMDAT_SELECTION_KIND_LARGEST;
+ case Comdat::NoDuplicates:
+ return bitc::COMDAT_SELECTION_KIND_NO_DUPLICATES;
+ case Comdat::SameSize:
+ return bitc::COMDAT_SELECTION_KIND_SAME_SIZE;
+ }
+ llvm_unreachable("Invalid selection kind");
+}
+
+static void writeComdats(const ValueEnumerator &VE, BitstreamWriter &Stream) {
+ SmallVector<uint16_t, 64> Vals;
+ for (const Comdat *C : VE.getComdats()) {
+ // COMDAT: [selection_kind, name]
+ Vals.push_back(getEncodedComdatSelectionKind(*C));
+ 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);
+ Vals.clear();
+ }
+}
+
// Emit top-level description of module, including target triple, inline asm,
// descriptors for global variables, and function prototype info.
static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
std::map<std::string, unsigned> GCMap;
unsigned MaxAlignment = 0;
unsigned MaxGlobalType = 0;
- for (Module::const_global_iterator GV = M->global_begin(),E = M->global_end();
- GV != E; ++GV) {
- MaxAlignment = std::max(MaxAlignment, GV->getAlignment());
- MaxGlobalType = std::max(MaxGlobalType, VE.getTypeID(GV->getType()));
- if (GV->hasSection()) {
+ for (const GlobalValue &GV : M->globals()) {
+ MaxAlignment = std::max(MaxAlignment, GV.getAlignment());
+ MaxGlobalType = std::max(MaxGlobalType, VE.getTypeID(GV.getValueType()));
+ if (GV.hasSection()) {
// Give section names unique ID's.
- unsigned &Entry = SectionMap[GV->getSection()];
+ unsigned &Entry = SectionMap[GV.getSection()];
if (!Entry) {
- WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, GV->getSection(),
+ WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, GV.getSection(),
0/*TODO*/, Stream);
Entry = SectionMap.size();
}
}
}
- for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) {
- MaxAlignment = std::max(MaxAlignment, F->getAlignment());
- if (F->hasSection()) {
+ for (const Function &F : *M) {
+ MaxAlignment = std::max(MaxAlignment, F.getAlignment());
+ if (F.hasSection()) {
// Give section names unique ID's.
- unsigned &Entry = SectionMap[F->getSection()];
+ unsigned &Entry = SectionMap[F.getSection()];
if (!Entry) {
- WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, F->getSection(),
+ WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, F.getSection(),
0/*TODO*/, Stream);
Entry = SectionMap.size();
}
}
- if (F->hasGC()) {
+ if (F.hasGC()) {
// Same for GC names.
- unsigned &Entry = GCMap[F->getGC()];
+ unsigned &Entry = GCMap[F.getGC()];
if (!Entry) {
- WriteStringRecord(bitc::MODULE_CODE_GCNAME, F->getGC(),
+ WriteStringRecord(bitc::MODULE_CODE_GCNAME, F.getGC(),
0/*TODO*/, Stream);
Entry = GCMap.size();
}
Abbv->Add(BitCodeAbbrevOp(bitc::MODULE_CODE_GLOBALVAR));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed,
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.
- if (MaxAlignment == 0) // Alignment.
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddrSpace << 2
+ //| explicitType << 1
+ //| constant
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Initializer.
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 5)); // Linkage.
+ if (MaxAlignment == 0) // Alignment.
Abbv->Add(BitCodeAbbrevOp(0));
else {
unsigned MaxEncAlignment = Log2_32(MaxAlignment)+1;
// Emit the global variable information.
SmallVector<unsigned, 64> Vals;
- for (Module::const_global_iterator GV = M->global_begin(),E = M->global_end();
- GV != E; ++GV) {
+ for (const GlobalVariable &GV : M->globals()) {
unsigned AbbrevToUse = 0;
// GLOBALVAR: [type, isconst, initid,
// linkage, alignment, section, visibility, threadlocal,
- // unnamed_addr, externally_initialized, dllstorageclass]
- Vals.push_back(VE.getTypeID(GV->getType()));
- Vals.push_back(GV->isConstant());
- Vals.push_back(GV->isDeclaration() ? 0 :
- (VE.getValueID(GV->getInitializer()) + 1));
+ // unnamed_addr, externally_initialized, dllstorageclass,
+ // comdat]
+ Vals.push_back(VE.getTypeID(GV.getValueType()));
+ Vals.push_back(GV.getType()->getAddressSpace() << 2 | 2 | GV.isConstant());
+ Vals.push_back(GV.isDeclaration() ? 0 :
+ (VE.getValueID(GV.getInitializer()) + 1));
Vals.push_back(getEncodedLinkage(GV));
- Vals.push_back(Log2_32(GV->getAlignment())+1);
- Vals.push_back(GV->hasSection() ? SectionMap[GV->getSection()] : 0);
- if (GV->isThreadLocal() ||
- GV->getVisibility() != GlobalValue::DefaultVisibility ||
- GV->hasUnnamedAddr() || GV->isExternallyInitialized() ||
- GV->getDLLStorageClass() != GlobalValue::DefaultStorageClass) {
+ Vals.push_back(Log2_32(GV.getAlignment())+1);
+ Vals.push_back(GV.hasSection() ? SectionMap[GV.getSection()] : 0);
+ if (GV.isThreadLocal() ||
+ GV.getVisibility() != GlobalValue::DefaultVisibility ||
+ GV.hasUnnamedAddr() || GV.isExternallyInitialized() ||
+ GV.getDLLStorageClass() != GlobalValue::DefaultStorageClass ||
+ GV.hasComdat()) {
Vals.push_back(getEncodedVisibility(GV));
Vals.push_back(getEncodedThreadLocalMode(GV));
- Vals.push_back(GV->hasUnnamedAddr());
- Vals.push_back(GV->isExternallyInitialized());
+ Vals.push_back(GV.hasUnnamedAddr());
+ Vals.push_back(GV.isExternallyInitialized());
Vals.push_back(getEncodedDLLStorageClass(GV));
+ Vals.push_back(GV.hasComdat() ? VE.getComdatID(GV.getComdat()) : 0);
} else {
AbbrevToUse = SimpleGVarAbbrev;
}
}
// Emit the function proto information.
- for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) {
+ for (const Function &F : *M) {
// FUNCTION: [type, callingconv, isproto, linkage, paramattrs, alignment,
- // section, visibility, gc, unnamed_addr, prefix]
- Vals.push_back(VE.getTypeID(F->getType()));
- Vals.push_back(F->getCallingConv());
- Vals.push_back(F->isDeclaration());
+ // section, visibility, gc, unnamed_addr, prologuedata,
+ // dllstorageclass, comdat, prefixdata]
+ Vals.push_back(VE.getTypeID(F.getFunctionType()));
+ Vals.push_back(F.getCallingConv());
+ Vals.push_back(F.isDeclaration());
Vals.push_back(getEncodedLinkage(F));
- Vals.push_back(VE.getAttributeID(F->getAttributes()));
- Vals.push_back(Log2_32(F->getAlignment())+1);
- Vals.push_back(F->hasSection() ? SectionMap[F->getSection()] : 0);
+ Vals.push_back(VE.getAttributeID(F.getAttributes()));
+ Vals.push_back(Log2_32(F.getAlignment())+1);
+ Vals.push_back(F.hasSection() ? SectionMap[F.getSection()] : 0);
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.hasGC() ? GCMap[F.getGC()] : 0);
+ Vals.push_back(F.hasUnnamedAddr());
+ 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);
}
// Emit the alias information.
- for (Module::const_alias_iterator AI = M->alias_begin(), E = M->alias_end();
- AI != E; ++AI) {
+ for (const GlobalAlias &A : M->aliases()) {
// ALIAS: [alias type, aliasee val#, linkage, visibility]
- Vals.push_back(VE.getTypeID(AI->getType()));
- Vals.push_back(VE.getValueID(AI->getAliasee()));
- Vals.push_back(getEncodedLinkage(AI));
- Vals.push_back(getEncodedVisibility(AI));
- Vals.push_back(getEncodedDLLStorageClass(AI));
+ Vals.push_back(VE.getTypeID(A.getType()));
+ Vals.push_back(VE.getValueID(A.getAliasee()));
+ Vals.push_back(getEncodedLinkage(A));
+ Vals.push_back(getEncodedVisibility(A));
+ Vals.push_back(getEncodedDLLStorageClass(A));
+ Vals.push_back(getEncodedThreadLocalMode(A));
+ Vals.push_back(A.hasUnnamedAddr());
unsigned AbbrevToUse = 0;
Stream.EmitRecord(bitc::MODULE_CODE_ALIAS, Vals, AbbrevToUse);
Vals.clear();
static uint64_t GetOptimizationFlags(const Value *V) {
uint64_t Flags = 0;
- if (const OverflowingBinaryOperator *OBO =
- dyn_cast<OverflowingBinaryOperator>(V)) {
+ if (const auto *OBO = dyn_cast<OverflowingBinaryOperator>(V)) {
if (OBO->hasNoSignedWrap())
Flags |= 1 << bitc::OBO_NO_SIGNED_WRAP;
if (OBO->hasNoUnsignedWrap())
Flags |= 1 << bitc::OBO_NO_UNSIGNED_WRAP;
- } else if (const PossiblyExactOperator *PEO =
- dyn_cast<PossiblyExactOperator>(V)) {
+ } else if (const auto *PEO = dyn_cast<PossiblyExactOperator>(V)) {
if (PEO->isExact())
Flags |= 1 << bitc::PEO_EXACT;
- } else if (const FPMathOperator *FPMO =
- dyn_cast<const FPMathOperator>(V)) {
+ } else if (const auto *FPMO = dyn_cast<FPMathOperator>(V)) {
if (FPMO->hasUnsafeAlgebra())
Flags |= FastMathFlags::UnsafeAlgebra;
if (FPMO->hasNoNaNs())
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 WriteDILocation(const DILocation *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 WriteGenericDINode(const GenericDINode *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 WriteDISubrange(const DISubrange *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->getLowerBound()));
+
+ Stream.EmitRecord(bitc::METADATA_SUBRANGE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteDIEnumerator(const DIEnumerator *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 WriteDIBasicType(const DIBasicType *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 WriteDIDerivedType(const DIDerivedType *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 WriteDICompositeType(const DICompositeType *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().get()));
+ Record.push_back(N->getRuntimeLang());
+ Record.push_back(VE.getMetadataOrNullID(N->getVTableHolder()));
+ Record.push_back(VE.getMetadataOrNullID(N->getTemplateParams().get()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRawIdentifier()));
+
+ Stream.EmitRecord(bitc::METADATA_COMPOSITE_TYPE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteDISubroutineType(const DISubroutineType *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().get()));
+
+ Stream.EmitRecord(bitc::METADATA_SUBROUTINE_TYPE, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteDIFile(const DIFile *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 WriteDICompileUnit(const DICompileUnit *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().get()));
+ Record.push_back(VE.getMetadataOrNullID(N->getRetainedTypes().get()));
+ Record.push_back(VE.getMetadataOrNullID(N->getSubprograms().get()));
+ Record.push_back(VE.getMetadataOrNullID(N->getGlobalVariables().get()));
+ Record.push_back(VE.getMetadataOrNullID(N->getImportedEntities().get()));
+ Record.push_back(N->getDWOId());
+
+ Stream.EmitRecord(bitc::METADATA_COMPILE_UNIT, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteDISubprogram(const DISubprogram *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->getRawFunction()));
+ Record.push_back(VE.getMetadataOrNullID(N->getTemplateParams().get()));
+ Record.push_back(VE.getMetadataOrNullID(N->getDeclaration()));
+ Record.push_back(VE.getMetadataOrNullID(N->getVariables().get()));
+
+ Stream.EmitRecord(bitc::METADATA_SUBPROGRAM, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteDILexicalBlock(const DILexicalBlock *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 WriteDILexicalBlockFile(const DILexicalBlockFile *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 WriteDINamespace(const DINamespace *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 WriteDITemplateTypeParameter(const DITemplateTypeParameter *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 WriteDITemplateValueParameter(const DITemplateValueParameter *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 WriteDIGlobalVariable(const DIGlobalVariable *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->getRawVariable()));
+ Record.push_back(VE.getMetadataOrNullID(N->getStaticDataMemberDeclaration()));
+
+ Stream.EmitRecord(bitc::METADATA_GLOBAL_VAR, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteDILocalVariable(const DILocalVariable *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());
+
+ Stream.EmitRecord(bitc::METADATA_LOCAL_VAR, Record, Abbrev);
+ Record.clear();
+}
+
+static void WriteDIExpression(const DIExpression *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 WriteDIObjCProperty(const DIObjCProperty *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 WriteDIImportedEntity(const DIImportedEntity *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 ValueEnumerator::ValueList &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].first)) {
- 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].first)) {
- 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.hasDILocation()) {
+ // 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));
+ DILocationAbbrev = Stream.EmitAbbrev(Abbv);
+ }
- // Emit the finished record.
- Stream.EmitRecord(bitc::METADATA_STRING, Record, MDSAbbrev);
- Record.clear();
- }
+ if (VE.hasGenericDINode()) {
+ // 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));
+ GenericDINodeAbbrev = 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)) {
+ assert(N->isResolved() && "Expected forward references to be resolved");
+
+ 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,
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();
// Write metadata attachments
// METADATA_ATTACHMENT - [m x [value, [n x [id, mdnode]]]
- SmallVector<std::pair<unsigned, MDNode*>, 4> MDs;
+ SmallVector<std::pair<unsigned, MDNode *>, 4> MDs;
+ F.getAllMetadata(MDs);
+ if (!MDs.empty()) {
+ for (const auto &I : MDs) {
+ Record.push_back(I.first);
+ Record.push_back(VE.getMetadataID(I.second));
+ }
+ Stream.EmitRecord(bitc::METADATA_ATTACHMENT, Record, 0);
+ Record.clear();
+ }
for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
for (BasicBlock::const_iterator I = BB->begin(), E = BB->end();
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();
SmallVector<uint64_t, 64> Record;
const ValueEnumerator::ValueList &Vals = VE.getValues();
- Type *LastTy = 0;
+ Type *LastTy = nullptr;
for (unsigned i = FirstVal; i != LastVal; ++i) {
const Value *V = Vals[i].first;
// If we need to switch types, do so now.
// 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;
Record.push_back(Flags);
}
break;
- case Instruction::GetElementPtr:
+ case Instruction::GetElementPtr: {
Code = bitc::CST_CODE_CE_GEP;
- if (cast<GEPOperator>(C)->isInBounds())
+ const auto *GO = cast<GEPOperator>(C);
+ if (GO->isInBounds())
Code = bitc::CST_CODE_CE_INBOUNDS_GEP;
+ Record.push_back(VE.getTypeID(GO->getSourceElementType()));
for (unsigned i = 0, e = CE->getNumOperands(); i != e; ++i) {
Record.push_back(VE.getTypeID(C->getOperand(i)->getType()));
Record.push_back(VE.getValueID(C->getOperand(i)));
}
break;
+ }
case Instruction::Select:
Code = bitc::CST_CODE_CE_SELECT;
Record.push_back(VE.getValueID(C->getOperand(0)));
Code = bitc::CST_CODE_CE_EXTRACTELT;
Record.push_back(VE.getTypeID(C->getOperand(0)->getType()));
Record.push_back(VE.getValueID(C->getOperand(0)));
+ Record.push_back(VE.getTypeID(C->getOperand(1)->getType()));
Record.push_back(VE.getValueID(C->getOperand(1)));
break;
case Instruction::InsertElement:
Code = bitc::CST_CODE_CE_INSERTELT;
Record.push_back(VE.getValueID(C->getOperand(0)));
Record.push_back(VE.getValueID(C->getOperand(1)));
+ Record.push_back(VE.getTypeID(C->getOperand(2)->getType()));
Record.push_back(VE.getValueID(C->getOperand(2)));
break;
case Instruction::ShuffleVector:
}
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: {
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:
case Instruction::ExtractElement:
Code = bitc::FUNC_CODE_INST_EXTRACTELT;
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
- pushValue(I.getOperand(1), InstID, Vals, VE);
+ PushValueAndType(I.getOperand(1), InstID, Vals, VE);
break;
case Instruction::InsertElement:
Code = bitc::FUNC_CODE_INST_INSERTELT;
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
pushValue(I.getOperand(1), InstID, Vals, VE);
- pushValue(I.getOperand(2), InstID, Vals, VE);
+ PushValueAndType(I.getOperand(2), InstID, Vals, VE);
break;
case Instruction::ShuffleVector:
Code = bitc::FUNC_CODE_INST_SHUFFLEVEC;
case Instruction::Invoke: {
const InvokeInst *II = cast<InvokeInst>(&I);
- const Value *Callee(II->getCalledValue());
- PointerType *PTy = cast<PointerType>(Callee->getType());
- FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
+ const Value *Callee = II->getCalledValue();
+ FunctionType *FTy = II->getFunctionType();
Code = bitc::FUNC_CODE_INST_INVOKE;
Vals.push_back(VE.getAttributeID(II->getAttributes()));
- Vals.push_back(II->getCallingConv());
+ Vals.push_back(II->getCallingConv() | 1 << 13);
Vals.push_back(VE.getValueID(II->getNormalDest()));
Vals.push_back(VE.getValueID(II->getUnwindDest()));
+ Vals.push_back(VE.getTypeID(FTy));
PushValueAndType(Callee, InstID, Vals, VE);
// Emit value #'s for the fixed parameters.
break;
}
- case Instruction::Alloca:
+ case Instruction::Alloca: {
Code = bitc::FUNC_CODE_INST_ALLOCA;
- Vals.push_back(VE.getTypeID(I.getType()));
+ const AllocaInst &AI = cast<AllocaInst>(I);
+ Vals.push_back(VE.getTypeID(AI.getAllocatedType()));
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0))); // size.
- Vals.push_back(Log2_32(cast<AllocaInst>(I).getAlignment())+1);
+ unsigned AlignRecord = Log2_32(AI.getAlignment()) + 1;
+ assert(Log2_32(Value::MaximumAlignment) + 1 < 1 << 5 &&
+ "not enough bits for maximum alignment");
+ assert(AlignRecord < 1 << 5 && "alignment greater than 1 << 64");
+ AlignRecord |= AI.isUsedWithInAlloca() << 5;
+ AlignRecord |= 1 << 6;
+ Vals.push_back(AlignRecord);
break;
+ }
case Instruction::Load:
if (cast<LoadInst>(I).isAtomic()) {
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()) {
else
Code = bitc::FUNC_CODE_INST_STORE;
PushValueAndType(I.getOperand(1), InstID, Vals, VE); // ptrty + ptr
- pushValue(I.getOperand(0), InstID, Vals, VE); // val.
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE); // valty + val
Vals.push_back(Log2_32(cast<StoreInst>(I).getAlignment())+1);
Vals.push_back(cast<StoreInst>(I).isVolatile());
if (cast<StoreInst>(I).isAtomic()) {
case Instruction::AtomicCmpXchg:
Code = bitc::FUNC_CODE_INST_CMPXCHG;
PushValueAndType(I.getOperand(0), InstID, Vals, VE); // ptrty + ptr
- pushValue(I.getOperand(1), InstID, Vals, VE); // cmp.
+ PushValueAndType(I.getOperand(1), InstID, Vals, VE); // cmp.
pushValue(I.getOperand(2), InstID, Vals, VE); // newval.
Vals.push_back(cast<AtomicCmpXchgInst>(I).isVolatile());
Vals.push_back(GetEncodedOrdering(
cast<AtomicCmpXchgInst>(I).getSynchScope()));
Vals.push_back(GetEncodedOrdering(
cast<AtomicCmpXchgInst>(I).getFailureOrdering()));
+ Vals.push_back(cast<AtomicCmpXchgInst>(I).isWeak());
break;
case Instruction::AtomicRMW:
Code = bitc::FUNC_CODE_INST_ATOMICRMW;
break;
case Instruction::Call: {
const CallInst &CI = cast<CallInst>(I);
- PointerType *PTy = cast<PointerType>(CI.getCalledValue()->getType());
- FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
+ FunctionType *FTy = CI.getFunctionType();
Code = bitc::FUNC_CODE_INST_CALL;
Vals.push_back(VE.getAttributeID(CI.getAttributes()));
- Vals.push_back((CI.getCallingConv() << 1) | unsigned(CI.isTailCall()));
+ Vals.push_back((CI.getCallingConv() << 1) | unsigned(CI.isTailCall()) |
+ unsigned(CI.isMustTailCall()) << 14 | 1 << 15);
+ Vals.push_back(VE.getTypeID(FTy));
PushValueAndType(CI.getCalledValue(), InstID, Vals, VE); // Callee
// Emit value #'s for the fixed parameters.
Stream.ExitBlock();
}
+static void WriteUseList(ValueEnumerator &VE, UseListOrder &&Order,
+ BitstreamWriter &Stream) {
+ assert(Order.Shuffle.size() >= 2 && "Shuffle too small");
+ unsigned Code;
+ if (isa<BasicBlock>(Order.V))
+ Code = bitc::USELIST_CODE_BB;
+ else
+ Code = bitc::USELIST_CODE_DEFAULT;
+
+ SmallVector<uint64_t, 64> Record(Order.Shuffle.begin(), Order.Shuffle.end());
+ Record.push_back(VE.getValueID(Order.V));
+ Stream.EmitRecord(Code, Record);
+}
+
+static void WriteUseListBlock(const Function *F, ValueEnumerator &VE,
+ BitstreamWriter &Stream) {
+ assert(VE.shouldPreserveUseListOrder() &&
+ "Expected to be preserving use-list order");
+
+ auto hasMore = [&]() {
+ return !VE.UseListOrders.empty() && VE.UseListOrders.back().F == F;
+ };
+ if (!hasMore())
+ // Nothing to do.
+ return;
+
+ Stream.EnterSubblock(bitc::USELIST_BLOCK_ID, 3);
+ while (hasMore()) {
+ WriteUseList(VE, std::move(VE.UseListOrders.back()), Stream);
+ VE.UseListOrders.pop_back();
+ }
+ Stream.ExitBlock();
+}
+
/// WriteFunction - Emit a function body to the module stream.
static void WriteFunction(const Function &F, ValueEnumerator &VE,
BitstreamWriter &Stream) {
// Keep a running idea of what the instruction ID is.
unsigned InstID = CstEnd;
- bool NeedsMetadataAttachment = false;
+ bool NeedsMetadataAttachment = F.hasMetadata();
- DebugLoc LastDL;
+ DILocation *LastDL = nullptr;
// Finally, emit all the instructions, in order.
for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
NeedsMetadataAttachment |= I->hasMetadataOtherThanDebugLoc();
// If the instruction has a debug location, emit it.
- DebugLoc DL = I->getDebugLoc();
- if (DL.isUnknown()) {
- // nothing todo.
- } else if (DL == LastDL) {
+ DILocation *DL = I->getDebugLoc();
+ if (!DL)
+ continue;
+
+ if (DL == LastDL) {
// Just repeat the same debug loc as last time.
Stream.EmitRecord(bitc::FUNC_CODE_DEBUG_LOC_AGAIN, Vals);
- } else {
- MDNode *Scope, *IA;
- DL.getScopeAndInlinedAt(Scope, IA, I->getContext());
+ continue;
+ }
- 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);
- Stream.EmitRecord(bitc::FUNC_CODE_DEBUG_LOC, Vals);
- Vals.clear();
+ Vals.push_back(DL->getLine());
+ Vals.push_back(DL->getColumn());
+ Vals.push_back(VE.getMetadataOrNullID(DL->getScope()));
+ Vals.push_back(VE.getMetadataOrNullID(DL->getInlinedAt()));
+ Stream.EmitRecord(bitc::FUNC_CODE_DEBUG_LOC, Vals);
+ Vals.clear();
- LastDL = DL;
- }
+ LastDL = DL;
}
// Emit names for all the instructions etc.
if (NeedsMetadataAttachment)
WriteMetadataAttachment(F, VE, Stream);
+ if (VE.shouldPreserveUseListOrder())
+ WriteUseListBlock(&F, VE, Stream);
VE.purgeFunction();
Stream.ExitBlock();
}
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!");
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,
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,
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)
Abbv) != FUNCTION_INST_UNREACHABLE_ABBREV)
llvm_unreachable("Unexpected abbrev ordering!");
}
-
- Stream.ExitBlock();
-}
-
-// Sort the Users based on the order in which the reader parses the bitcode
-// file.
-static bool bitcodereader_order(const User *lhs, const User *rhs) {
- // TODO: Implement.
- return true;
-}
-
-static void WriteUseList(const Value *V, const ValueEnumerator &VE,
- BitstreamWriter &Stream) {
-
- // One or zero uses can't get out of order.
- if (V->use_empty() || V->hasNUses(1))
- return;
-
- // Make a copy of the in-memory use-list for sorting.
- SmallVector<const User*, 8> UserList(V->user_begin(), V->user_end());
-
- // Sort the copy based on the order read by the BitcodeReader.
- std::sort(UserList.begin(), UserList.end(), bitcodereader_order);
-
- // TODO: Generate a diff between the BitcodeWriter in-memory use-list and the
- // sorted list (i.e., the expected BitcodeReader in-memory use-list).
-
- // TODO: Emit the USELIST_CODE_ENTRYs.
-}
-
-static void WriteFunctionUseList(const Function *F, ValueEnumerator &VE,
- BitstreamWriter &Stream) {
- VE.incorporateFunction(*F);
-
- for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
- AI != AE; ++AI)
- WriteUseList(AI, VE, Stream);
- for (Function::const_iterator BB = F->begin(), FE = F->end(); BB != FE;
- ++BB) {
- WriteUseList(BB, VE, Stream);
- for (BasicBlock::const_iterator II = BB->begin(), IE = BB->end(); II != IE;
- ++II) {
- WriteUseList(II, VE, Stream);
- for (User::const_op_iterator OI = II->op_begin(), E = II->op_end();
- OI != E; ++OI) {
- if ((isa<Constant>(*OI) && !isa<GlobalValue>(*OI)) ||
- isa<InlineAsm>(*OI))
- WriteUseList(*OI, VE, Stream);
- }
- }
- }
- VE.purgeFunction();
-}
-
-// Emit use-lists.
-static void WriteModuleUseLists(const Module *M, ValueEnumerator &VE,
- BitstreamWriter &Stream) {
- Stream.EnterSubblock(bitc::USELIST_BLOCK_ID, 3);
-
- // XXX: this modifies the module, but in a way that should never change the
- // behavior of any pass or codegen in LLVM. The problem is that GVs may
- // contain entries in the use_list that do not exist in the Module and are
- // not stored in the .bc file.
- for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
- I != E; ++I)
- I->removeDeadConstantUsers();
-
- // Write the global variables.
- for (Module::const_global_iterator GI = M->global_begin(),
- GE = M->global_end(); GI != GE; ++GI) {
- WriteUseList(GI, VE, Stream);
-
- // Write the global variable initializers.
- if (GI->hasInitializer())
- WriteUseList(GI->getInitializer(), VE, Stream);
- }
-
- // Write the functions.
- for (Module::const_iterator FI = M->begin(), FE = M->end(); FI != FE; ++FI) {
- WriteUseList(FI, VE, Stream);
- if (!FI->isDeclaration())
- WriteFunctionUseList(FI, VE, Stream);
- if (FI->hasPrefixData())
- WriteUseList(FI->getPrefixData(), VE, Stream);
- }
-
- // Write the aliases.
- for (Module::const_alias_iterator AI = M->alias_begin(), AE = M->alias_end();
- AI != AE; ++AI) {
- WriteUseList(AI, VE, Stream);
- WriteUseList(AI->getAliasee(), VE, Stream);
+ {
+ 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();
}
/// WriteModule - Emit the specified module to the bitstream.
-static void WriteModule(const Module *M, BitstreamWriter &Stream) {
+static void WriteModule(const Module *M, BitstreamWriter &Stream,
+ bool ShouldPreserveUseListOrder) {
Stream.EnterSubblock(bitc::MODULE_BLOCK_ID, 3);
SmallVector<unsigned, 1> Vals;
Stream.EmitRecord(bitc::MODULE_CODE_VERSION, Vals);
// Analyze the module, enumerating globals, functions, etc.
- ValueEnumerator VE(M);
+ ValueEnumerator VE(*M, ShouldPreserveUseListOrder);
// Emit blockinfo, which defines the standard abbreviations etc.
WriteBlockInfo(VE, Stream);
// Emit information describing all of the types in the module.
WriteTypeTable(VE, Stream);
+ writeComdats(VE, Stream);
+
// Emit top-level description of module, including target triple, inline asm,
// descriptors for global variables, and function prototype info.
WriteModuleInfo(M, VE, Stream);
// Emit names for globals/functions etc.
WriteValueSymbolTable(M->getValueSymbolTable(), VE, Stream);
- // Emit use-lists.
- if (EnablePreserveUseListOrdering)
- WriteModuleUseLists(M, VE, Stream);
+ // Emit module-level use-lists.
+ if (VE.shouldPreserveUseListOrder())
+ WriteUseListBlock(nullptr, VE, Stream);
// Emit function bodies.
for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F)
/// WriteBitcodeToFile - Write the specified module to the specified output
/// stream.
-void llvm::WriteBitcodeToFile(const Module *M, raw_ostream &Out) {
+void llvm::WriteBitcodeToFile(const Module *M, raw_ostream &Out,
+ bool ShouldPreserveUseListOrder) {
SmallVector<char, 0> Buffer;
Buffer.reserve(256*1024);
Stream.Emit(0xD, 4);
// Emit the module.
- WriteModule(M, Stream);
+ WriteModule(M, Stream, ShouldPreserveUseListOrder);
}
if (TT.isOSDarwin())