IR / debug info: Add a DWOId field to DICompileUnit,
[oota-llvm.git] / lib / Bitcode / Writer / BitcodeWriter.cpp
index 743ffe3cb1fd35cd3be94d3c38575f04e4edc7cb..3a539e12926d2b9bae1c3ba51bc73844b67d6f81 100644 (file)
@@ -200,6 +200,8 @@ static uint64_t getAttrKindEncoding(Attribute::AttrKind Kind) {
     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:
@@ -588,7 +590,7 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
   unsigned MaxGlobalType = 0;
   for (const GlobalValue &GV : M->globals()) {
     MaxAlignment = std::max(MaxAlignment, GV.getAlignment());
-    MaxGlobalType = std::max(MaxGlobalType, VE.getTypeID(GV.getType()));
+    MaxGlobalType = std::max(MaxGlobalType, VE.getTypeID(GV.getValueType()));
     if (GV.hasSection()) {
       // Give section names unique ID's.
       unsigned &Entry = SectionMap[GV.getSection()];
@@ -629,10 +631,12 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
     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, 5));      // 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;
@@ -657,8 +661,8 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
     //             linkage, alignment, section, visibility, threadlocal,
     //             unnamed_addr, externally_initialized, dllstorageclass,
     //             comdat]
-    Vals.push_back(VE.getTypeID(GV.getType()));
-    Vals.push_back(GV.isConstant());
+    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));
@@ -688,7 +692,7 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
     // FUNCTION:  [type, callingconv, isproto, linkage, paramattrs, alignment,
     //             section, visibility, gc, unnamed_addr, prologuedata,
     //             dllstorageclass, comdat, prefixdata]
-    Vals.push_back(VE.getTypeID(F.getType()));
+    Vals.push_back(VE.getTypeID(F.getFunctionType()));
     Vals.push_back(F.getCallingConv());
     Vals.push_back(F.isDeclaration());
     Vals.push_back(getEncodedLinkage(F));
@@ -780,7 +784,7 @@ static void WriteMDTuple(const MDTuple *N, const ValueEnumerator &VE,
   Record.clear();
 }
 
-static void WriteMDLocation(const MDLocation *N, const ValueEnumerator &VE,
+static void WriteDILocation(const DILocation *N, const ValueEnumerator &VE,
                             BitstreamWriter &Stream,
                             SmallVectorImpl<uint64_t> &Record,
                             unsigned Abbrev) {
@@ -794,11 +798,11 @@ static void WriteMDLocation(const MDLocation *N, const ValueEnumerator &VE,
   Record.clear();
 }
 
-static void WriteGenericDebugNode(const GenericDebugNode *N,
-                                  const ValueEnumerator &VE,
-                                  BitstreamWriter &Stream,
-                                  SmallVectorImpl<uint64_t> &Record,
-                                  unsigned Abbrev) {
+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.
@@ -815,7 +819,7 @@ static uint64_t rotateSign(int64_t I) {
   return I < 0 ? ~(U << 1) : U << 1;
 }
 
-static void WriteMDSubrange(const MDSubrange *N, const ValueEnumerator &,
+static void WriteDISubrange(const DISubrange *N, const ValueEnumerator &,
                             BitstreamWriter &Stream,
                             SmallVectorImpl<uint64_t> &Record,
                             unsigned Abbrev) {
@@ -827,7 +831,7 @@ static void WriteMDSubrange(const MDSubrange *N, const ValueEnumerator &,
   Record.clear();
 }
 
-static void WriteMDEnumerator(const MDEnumerator *N, const ValueEnumerator &VE,
+static void WriteDIEnumerator(const DIEnumerator *N, const ValueEnumerator &VE,
                               BitstreamWriter &Stream,
                               SmallVectorImpl<uint64_t> &Record,
                               unsigned Abbrev) {
@@ -839,7 +843,7 @@ static void WriteMDEnumerator(const MDEnumerator *N, const ValueEnumerator &VE,
   Record.clear();
 }
 
-static void WriteMDBasicType(const MDBasicType *N, const ValueEnumerator &VE,
+static void WriteDIBasicType(const DIBasicType *N, const ValueEnumerator &VE,
                              BitstreamWriter &Stream,
                              SmallVectorImpl<uint64_t> &Record,
                              unsigned Abbrev) {
@@ -854,7 +858,7 @@ static void WriteMDBasicType(const MDBasicType *N, const ValueEnumerator &VE,
   Record.clear();
 }
 
-static void WriteMDDerivedType(const MDDerivedType *N,
+static void WriteDIDerivedType(const DIDerivedType *N,
                                const ValueEnumerator &VE,
                                BitstreamWriter &Stream,
                                SmallVectorImpl<uint64_t> &Record,
@@ -876,7 +880,7 @@ static void WriteMDDerivedType(const MDDerivedType *N,
   Record.clear();
 }
 
-static void WriteMDCompositeType(const MDCompositeType *N,
+static void WriteDICompositeType(const DICompositeType *N,
                                  const ValueEnumerator &VE,
                                  BitstreamWriter &Stream,
                                  SmallVectorImpl<uint64_t> &Record,
@@ -902,7 +906,7 @@ static void WriteMDCompositeType(const MDCompositeType *N,
   Record.clear();
 }
 
-static void WriteMDSubroutineType(const MDSubroutineType *N,
+static void WriteDISubroutineType(const DISubroutineType *N,
                                   const ValueEnumerator &VE,
                                   BitstreamWriter &Stream,
                                   SmallVectorImpl<uint64_t> &Record,
@@ -915,7 +919,7 @@ static void WriteMDSubroutineType(const MDSubroutineType *N,
   Record.clear();
 }
 
-static void WriteMDFile(const MDFile *N, const ValueEnumerator &VE,
+static void WriteDIFile(const DIFile *N, const ValueEnumerator &VE,
                         BitstreamWriter &Stream,
                         SmallVectorImpl<uint64_t> &Record, unsigned Abbrev) {
   Record.push_back(N->isDistinct());
@@ -926,7 +930,7 @@ static void WriteMDFile(const MDFile *N, const ValueEnumerator &VE,
   Record.clear();
 }
 
-static void WriteMDCompileUnit(const MDCompileUnit *N,
+static void WriteDICompileUnit(const DICompileUnit *N,
                                const ValueEnumerator &VE,
                                BitstreamWriter &Stream,
                                SmallVectorImpl<uint64_t> &Record,
@@ -945,16 +949,16 @@ static void WriteMDCompileUnit(const MDCompileUnit *N,
   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 WriteMDSubprogram(const MDSubprogram *N,
-                               const ValueEnumerator &VE,
-                               BitstreamWriter &Stream,
-                               SmallVectorImpl<uint64_t> &Record,
-                               unsigned Abbrev) {
+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()));
@@ -979,11 +983,11 @@ static void WriteMDSubprogram(const MDSubprogram *N,
   Record.clear();
 }
 
-static void WriteMDLexicalBlock(const MDLexicalBlock *N,
-                               const ValueEnumerator &VE,
-                               BitstreamWriter &Stream,
-                               SmallVectorImpl<uint64_t> &Record,
-                               unsigned Abbrev) {
+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()));
@@ -994,7 +998,7 @@ static void WriteMDLexicalBlock(const MDLexicalBlock *N,
   Record.clear();
 }
 
-static void WriteMDLexicalBlockFile(const MDLexicalBlockFile *N,
+static void WriteDILexicalBlockFile(const DILexicalBlockFile *N,
                                     const ValueEnumerator &VE,
                                     BitstreamWriter &Stream,
                                     SmallVectorImpl<uint64_t> &Record,
@@ -1008,7 +1012,7 @@ static void WriteMDLexicalBlockFile(const MDLexicalBlockFile *N,
   Record.clear();
 }
 
-static void WriteMDNamespace(const MDNamespace *N, const ValueEnumerator &VE,
+static void WriteDINamespace(const DINamespace *N, const ValueEnumerator &VE,
                              BitstreamWriter &Stream,
                              SmallVectorImpl<uint64_t> &Record,
                              unsigned Abbrev) {
@@ -1022,7 +1026,7 @@ static void WriteMDNamespace(const MDNamespace *N, const ValueEnumerator &VE,
   Record.clear();
 }
 
-static void WriteMDTemplateTypeParameter(const MDTemplateTypeParameter *N,
+static void WriteDITemplateTypeParameter(const DITemplateTypeParameter *N,
                                          const ValueEnumerator &VE,
                                          BitstreamWriter &Stream,
                                          SmallVectorImpl<uint64_t> &Record,
@@ -1035,7 +1039,7 @@ static void WriteMDTemplateTypeParameter(const MDTemplateTypeParameter *N,
   Record.clear();
 }
 
-static void WriteMDTemplateValueParameter(const MDTemplateValueParameter *N,
+static void WriteDITemplateValueParameter(const DITemplateValueParameter *N,
                                           const ValueEnumerator &VE,
                                           BitstreamWriter &Stream,
                                           SmallVectorImpl<uint64_t> &Record,
@@ -1050,7 +1054,7 @@ static void WriteMDTemplateValueParameter(const MDTemplateValueParameter *N,
   Record.clear();
 }
 
-static void WriteMDGlobalVariable(const MDGlobalVariable *N,
+static void WriteDIGlobalVariable(const DIGlobalVariable *N,
                                   const ValueEnumerator &VE,
                                   BitstreamWriter &Stream,
                                   SmallVectorImpl<uint64_t> &Record,
@@ -1071,7 +1075,7 @@ static void WriteMDGlobalVariable(const MDGlobalVariable *N,
   Record.clear();
 }
 
-static void WriteMDLocalVariable(const MDLocalVariable *N,
+static void WriteDILocalVariable(const DILocalVariable *N,
                                  const ValueEnumerator &VE,
                                  BitstreamWriter &Stream,
                                  SmallVectorImpl<uint64_t> &Record,
@@ -1090,7 +1094,7 @@ static void WriteMDLocalVariable(const MDLocalVariable *N,
   Record.clear();
 }
 
-static void WriteMDExpression(const MDExpression *N, const ValueEnumerator &,
+static void WriteDIExpression(const DIExpression *N, const ValueEnumerator &,
                               BitstreamWriter &Stream,
                               SmallVectorImpl<uint64_t> &Record,
                               unsigned Abbrev) {
@@ -1103,11 +1107,11 @@ static void WriteMDExpression(const MDExpression *N, const ValueEnumerator &,
   Record.clear();
 }
 
-static void WriteMDObjCProperty(const MDObjCProperty *N,
-                                 const ValueEnumerator &VE,
-                                 BitstreamWriter &Stream,
-                                 SmallVectorImpl<uint64_t> &Record,
-                                 unsigned Abbrev) {
+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()));
@@ -1121,7 +1125,7 @@ static void WriteMDObjCProperty(const MDObjCProperty *N,
   Record.clear();
 }
 
-static void WriteMDImportedEntity(const MDImportedEntity *N,
+static void WriteDIImportedEntity(const DIImportedEntity *N,
                                   const ValueEnumerator &VE,
                                   BitstreamWriter &Stream,
                                   SmallVectorImpl<uint64_t> &Record,
@@ -1160,7 +1164,7 @@ static void WriteModuleMetadata(const Module *M,
 #define HANDLE_MDNODE_LEAF(CLASS) unsigned CLASS##Abbrev = 0;
 #include "llvm/IR/Metadata.def"
 
-  if (VE.hasMDLocation()) {
+  if (VE.hasDILocation()) {
     // Abbrev for METADATA_LOCATION.
     //
     // Assume the column is usually under 128, and always output the inlined-at
@@ -1172,10 +1176,10 @@ static void WriteModuleMetadata(const Module *M,
     Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8));
     Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
     Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
-    MDLocationAbbrev = Stream.EmitAbbrev(Abbv);
+    DILocationAbbrev = Stream.EmitAbbrev(Abbv);
   }
 
-  if (VE.hasGenericDebugNode()) {
+  if (VE.hasGenericDINode()) {
     // Abbrev for METADATA_GENERIC_DEBUG.
     //
     // Assume the column is usually under 128, and always output the inlined-at
@@ -1188,7 +1192,7 @@ static void WriteModuleMetadata(const Module *M,
     Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
     Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
     Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
-    GenericDebugNodeAbbrev = Stream.EmitAbbrev(Abbv);
+    GenericDINodeAbbrev = Stream.EmitAbbrev(Abbv);
   }
 
   unsigned NameAbbrev = 0;
@@ -1277,6 +1281,15 @@ static void WriteMetadataAttachment(const Function &F,
   // Write metadata attachments
   // METADATA_ATTACHMENT - [m x [value, [n x [id, mdnode]]]
   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();
@@ -1788,15 +1801,15 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
 
   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.
@@ -1857,15 +1870,16 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
 
   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.
-    const AllocaInst &AI = cast<AllocaInst>(I);
     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;
   }
@@ -1893,7 +1907,7 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
     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()) {
@@ -1904,7 +1918,7 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
   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(
@@ -1933,14 +1947,14 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
     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()) |
-                   unsigned(CI.isMustTailCall()) << 14);
+                   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.
@@ -2089,9 +2103,9 @@ static void WriteFunction(const Function &F, ValueEnumerator &VE,
   // Keep a running idea of what the instruction ID is.
   unsigned InstID = CstEnd;
 
-  bool NeedsMetadataAttachment = false;
+  bool NeedsMetadataAttachment = F.hasMetadata();
 
-  MDLocation *LastDL = nullptr;
+  DILocation *LastDL = nullptr;
 
   // Finally, emit all the instructions, in order.
   for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
@@ -2106,7 +2120,7 @@ static void WriteFunction(const Function &F, ValueEnumerator &VE,
       NeedsMetadataAttachment |= I->hasMetadataOtherThanDebugLoc();
 
       // If the instruction has a debug location, emit it.
-      MDLocation *DL = I->getDebugLoc();
+      DILocation *DL = I->getDebugLoc();
       if (!DL)
         continue;
 
@@ -2122,6 +2136,8 @@ static void WriteFunction(const Function &F, ValueEnumerator &VE,
       Vals.push_back(VE.getMetadataOrNullID(DL->getInlinedAt()));
       Stream.EmitRecord(bitc::FUNC_CODE_DEBUG_LOC, Vals);
       Vals.clear();
+
+      LastDL = DL;
     }
 
   // Emit names for all the instructions etc.