#include "llvm/IR/AutoUpgrade.h"
#include "llvm/IR/CallingConv.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/ValueSymbolTable.h"
+#include "llvm/Support/Dwarf.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/SaveAndRestore.h"
#include "llvm/Support/raw_ostream.h"
/// ValidateEndOfModule - Do final validity and sanity checks at the end of the
/// module.
bool LLParser::ValidateEndOfModule() {
- // Handle any instruction metadata forward references.
- if (!ForwardRefInstMetadata.empty()) {
- for (DenseMap<Instruction*, std::vector<MDRef> >::iterator
- I = ForwardRefInstMetadata.begin(), E = ForwardRefInstMetadata.end();
- I != E; ++I) {
- Instruction *Inst = I->first;
- const std::vector<MDRef> &MDList = I->second;
-
- for (unsigned i = 0, e = MDList.size(); i != e; ++i) {
- unsigned SlotNo = MDList[i].MDSlot;
-
- if (SlotNo >= NumberedMetadata.size() ||
- NumberedMetadata[SlotNo] == nullptr)
- return Error(MDList[i].Loc, "use of undefined metadata '!" +
- Twine(SlotNo) + "'");
- assert(!NumberedMetadata[SlotNo]->isFunctionLocal() &&
- "Unexpected function-local metadata");
- Inst->setMetadata(MDList[i].MDKind, NumberedMetadata[SlotNo]);
- }
- }
- ForwardRefInstMetadata.clear();
- }
-
for (unsigned I = 0, E = InstsWithTBAATag.size(); I < E; I++)
UpgradeInstWithTBAATag(InstsWithTBAATag[I]);
return Error(ForwardRefBlockAddresses.begin()->first.Loc,
"expected function name in blockaddress");
- for (unsigned i = 0, e = NumberedTypes.size(); i != e; ++i)
- if (NumberedTypes[i].second.isValid())
- return Error(NumberedTypes[i].second,
- "use of undefined type '%" + Twine(i) + "'");
+ for (const auto &NT : NumberedTypes)
+ if (NT.second.second.isValid())
+ return Error(NT.second.second,
+ "use of undefined type '%" + Twine(NT.first) + "'");
for (StringMap<std::pair<Type*, LocTy> >::iterator I =
NamedTypes.begin(), E = NamedTypes.end(); I != E; ++I)
"use of undefined metadata '!" +
Twine(ForwardRefMDNodes.begin()->first) + "'");
+ // Resolve metadata cycles.
+ for (auto &N : NumberedMetadata) {
+ if (N.second && !N.second->isResolved())
+ N.second->resolveCycles();
+ }
// Look for intrinsic functions and CallInst that need to be upgraded
for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; )
ParseToken(lltok::kw_type, "expected 'type' after '='"))
return true;
- if (TypeID >= NumberedTypes.size())
- NumberedTypes.resize(TypeID+1);
-
Type *Result = nullptr;
if (ParseStructDefinition(TypeLoc, "",
NumberedTypes[TypeID], Result)) return true;
// MDNode:
// ::= '!' MDNodeNumber
-//
-/// This version of ParseMDNodeID returns the slot number and null in the case
-/// of a forward reference.
-bool LLParser::ParseMDNodeID(MDNode *&Result, unsigned &SlotNo) {
- // !{ ..., !42, ... }
- if (ParseUInt32(SlotNo)) return true;
-
- // Check existing MDNode.
- if (SlotNo < NumberedMetadata.size() && NumberedMetadata[SlotNo] != nullptr)
- Result = NumberedMetadata[SlotNo];
- else
- Result = nullptr;
- return false;
-}
-
bool LLParser::ParseMDNodeID(MDNode *&Result) {
// !{ ..., !42, ... }
unsigned MID = 0;
- if (ParseMDNodeID(Result, MID)) return true;
+ if (ParseUInt32(MID))
+ return true;
// If not a forward reference, just return it now.
- if (Result) return false;
+ if (NumberedMetadata.count(MID)) {
+ Result = NumberedMetadata[MID];
+ return false;
+ }
// Otherwise, create MDNode forward reference.
- MDNode *FwdNode = MDNode::getTemporary(Context, None);
- ForwardRefMDNodes[MID] = std::make_pair(FwdNode, Lex.getLoc());
+ auto &FwdRef = ForwardRefMDNodes[MID];
+ FwdRef = std::make_pair(MDTuple::getTemporary(Context, None), Lex.getLoc());
- if (NumberedMetadata.size() <= MID)
- NumberedMetadata.resize(MID+1);
- NumberedMetadata[MID] = FwdNode;
- Result = FwdNode;
+ Result = FwdRef.first.get();
+ NumberedMetadata[MID].reset(Result);
return false;
}
Lex.Lex();
unsigned MetadataID = 0;
- LocTy TyLoc;
- Type *Ty = nullptr;
- SmallVector<Value *, 16> Elts;
+ MDNode *Init;
if (ParseUInt32(MetadataID) ||
- ParseToken(lltok::equal, "expected '=' here") ||
- ParseType(Ty, TyLoc) ||
- ParseToken(lltok::exclaim, "Expected '!' here") ||
- ParseToken(lltok::lbrace, "Expected '{' here") ||
- ParseMDNodeVector(Elts, nullptr) ||
- ParseToken(lltok::rbrace, "expected end of metadata node"))
+ ParseToken(lltok::equal, "expected '=' here"))
return true;
- MDNode *Init = MDNode::get(Context, Elts);
+ // Detect common error, from old metadata syntax.
+ if (Lex.getKind() == lltok::Type)
+ return TokError("unexpected type in metadata definition");
+
+ bool IsDistinct = EatIfPresent(lltok::kw_distinct);
+ if (Lex.getKind() == lltok::MetadataVar) {
+ if (ParseSpecializedMDNode(Init, IsDistinct))
+ return true;
+ } else if (ParseToken(lltok::exclaim, "Expected '!' here") ||
+ ParseMDTuple(Init, IsDistinct))
+ return true;
// See if this was forward referenced, if so, handle it.
- std::map<unsigned, std::pair<TrackingVH<MDNode>, LocTy> >::iterator
- FI = ForwardRefMDNodes.find(MetadataID);
+ auto FI = ForwardRefMDNodes.find(MetadataID);
if (FI != ForwardRefMDNodes.end()) {
- MDNode *Temp = FI->second.first;
- Temp->replaceAllUsesWith(Init);
- MDNode::deleteTemporary(Temp);
+ FI->second.first->replaceAllUsesWith(Init);
ForwardRefMDNodes.erase(FI);
assert(NumberedMetadata[MetadataID] == Init && "Tracking VH didn't work");
} else {
- if (MetadataID >= NumberedMetadata.size())
- NumberedMetadata.resize(MetadataID+1);
-
- if (NumberedMetadata[MetadataID] != nullptr)
+ if (NumberedMetadata.count(MetadataID))
return TokError("Metadata id is already used");
- NumberedMetadata[MetadataID] = Init;
+ NumberedMetadata[MetadataID].reset(Init);
}
return false;
GV->setAlignment(Alignment);
} else {
Comdat *C;
- if (parseOptionalComdat(C))
+ if (parseOptionalComdat(Name, C))
return true;
if (C)
GV->setComdat(C);
unsigned MDK = M->getMDKindID(Name);
Lex.Lex();
- MDNode *Node;
- SMLoc Loc = Lex.getLoc();
-
- if (ParseToken(lltok::exclaim, "expected '!' here"))
+ MDNode *N;
+ if (ParseMDNode(N))
return true;
- // This code is similar to that of ParseMetadataValue, however it needs to
- // have special-case code for a forward reference; see the comments on
- // ForwardRefInstMetadata for details. Also, MDStrings are not supported
- // at the top level here.
- if (Lex.getKind() == lltok::lbrace) {
- ValID ID;
- if (ParseMetadataListValue(ID, PFS))
- return true;
- assert(ID.Kind == ValID::t_MDNode);
- if (ID.MDNodeVal->isFunctionLocal())
- return Error(Loc, "unexpected function-local metadata");
- Inst->setMetadata(MDK, ID.MDNodeVal);
- } else {
- unsigned NodeID = 0;
- if (ParseMDNodeID(Node, NodeID))
- return true;
- if (Node) {
- // If we got the node, add it to the instruction.
- Inst->setMetadata(MDK, Node);
- } else {
- MDRef R = { Loc, MDK, NodeID };
- // Otherwise, remember that this should be resolved later.
- ForwardRefInstMetadata[Inst].push_back(R);
- }
- }
-
+ Inst->setMetadata(MDK, N);
if (MDK == LLVMContext::MD_tbaa)
InstsWithTBAATag.push_back(Inst);
//===----------------------------------------------------------------------===//
/// ParseType - Parse a type.
-bool LLParser::ParseType(Type *&Result, bool AllowVoid) {
+bool LLParser::ParseType(Type *&Result, const Twine &Msg, bool AllowVoid) {
SMLoc TypeLoc = Lex.getLoc();
switch (Lex.getKind()) {
default:
- return TokError("expected type");
+ return TokError(Msg);
case lltok::Type:
// Type ::= 'float' | 'void' (etc)
Result = Lex.getTyVal();
case lltok::LocalVarID: {
// Type ::= %4
- if (Lex.getUIntVal() >= NumberedTypes.size())
- NumberedTypes.resize(Lex.getUIntVal()+1);
std::pair<Type*, LocTy> &Entry = NumberedTypes[Lex.getUIntVal()];
// If the type hasn't been defined yet, create a forward definition and
if (ParseType(ArgTy, ArgLoc))
return true;
- // Otherwise, handle normal operands.
- if (ParseOptionalParamAttrs(ArgAttrs) || ParseValue(ArgTy, V, PFS))
- return true;
+ if (ArgTy->isMetadataTy()) {
+ if (ParseMetadataAsValue(V, PFS))
+ return true;
+ } else {
+ // Otherwise, handle normal operands.
+ if (ParseOptionalParamAttrs(ArgAttrs) || ParseValue(ArgTy, V, PFS))
+ return true;
+ }
ArgList.push_back(ParamInfo(ArgLoc, V, AttributeSet::get(V->getContext(),
AttrIndex++,
ArgAttrs)));
ID.StrVal = Lex.getStrVal();
ID.Kind = ValID::t_LocalName;
break;
- case lltok::exclaim: // !42, !{...}, or !"foo"
- return ParseMetadataValue(ID, PFS);
case lltok::APSInt:
ID.APSIntVal = Lex.getAPSIntVal();
ID.Kind = ValID::t_APSInt;
ParseGlobalValue(Ty, V);
}
-bool LLParser::parseOptionalComdat(Comdat *&C) {
+bool LLParser::parseOptionalComdat(StringRef GlobalName, Comdat *&C) {
C = nullptr;
+
+ LocTy KwLoc = Lex.getLoc();
if (!EatIfPresent(lltok::kw_comdat))
return false;
- if (Lex.getKind() != lltok::ComdatVar)
- return TokError("expected comdat variable");
- LocTy Loc = Lex.getLoc();
- StringRef Name = Lex.getStrVal();
- C = getComdat(Name, Loc);
- Lex.Lex();
+
+ if (EatIfPresent(lltok::lparen)) {
+ if (Lex.getKind() != lltok::ComdatVar)
+ return TokError("expected comdat variable");
+ C = getComdat(Lex.getStrVal(), Lex.getLoc());
+ Lex.Lex();
+ if (ParseToken(lltok::rparen, "expected ')' after comdat var"))
+ return true;
+ } else {
+ if (GlobalName.empty())
+ return TokError("comdat cannot be unnamed");
+ C = getComdat(GlobalName, KwLoc);
+ }
+
return false;
}
return false;
}
-bool LLParser::ParseMetadataListValue(ValID &ID, PerFunctionState *PFS) {
- assert(Lex.getKind() == lltok::lbrace);
- Lex.Lex();
-
- SmallVector<Value*, 16> Elts;
- if (ParseMDNodeVector(Elts, PFS) ||
- ParseToken(lltok::rbrace, "expected end of metadata node"))
+bool LLParser::ParseMDTuple(MDNode *&MD, bool IsDistinct) {
+ SmallVector<Metadata *, 16> Elts;
+ if (ParseMDNodeVector(Elts))
return true;
- ID.MDNodeVal = MDNode::get(Context, Elts);
- ID.Kind = ValID::t_MDNode;
+ MD = (IsDistinct ? MDTuple::getDistinct : MDTuple::get)(Context, Elts);
return false;
}
-/// ParseMetadataValue
-/// ::= !42
-/// ::= !{...}
-/// ::= !"string"
-bool LLParser::ParseMetadataValue(ValID &ID, PerFunctionState *PFS) {
- assert(Lex.getKind() == lltok::exclaim);
- Lex.Lex();
+/// MDNode:
+/// ::= !{ ... }
+/// ::= !7
+/// ::= !MDLocation(...)
+bool LLParser::ParseMDNode(MDNode *&N) {
+ if (Lex.getKind() == lltok::MetadataVar)
+ return ParseSpecializedMDNode(N);
- // MDNode:
+ return ParseToken(lltok::exclaim, "expected '!' here") ||
+ ParseMDNodeTail(N);
+}
+
+bool LLParser::ParseMDNodeTail(MDNode *&N) {
// !{ ... }
if (Lex.getKind() == lltok::lbrace)
- return ParseMetadataListValue(ID, PFS);
+ return ParseMDTuple(N);
- // Standalone metadata reference
// !42
- if (Lex.getKind() == lltok::APSInt) {
- if (ParseMDNodeID(ID.MDNodeVal)) return true;
- ID.Kind = ValID::t_MDNode;
+ return ParseMDNodeID(N);
+}
+
+namespace {
+
+/// Structure to represent an optional metadata field.
+template <class FieldTy> struct MDFieldImpl {
+ typedef MDFieldImpl ImplTy;
+ FieldTy Val;
+ bool Seen;
+
+ void assign(FieldTy Val) {
+ Seen = true;
+ this->Val = std::move(Val);
+ }
+
+ explicit MDFieldImpl(FieldTy Default)
+ : Val(std::move(Default)), Seen(false) {}
+};
+
+struct MDUnsignedField : public MDFieldImpl<uint64_t> {
+ uint64_t Max;
+
+ MDUnsignedField(uint64_t Default = 0, uint64_t Max = UINT64_MAX)
+ : ImplTy(Default), Max(Max) {}
+};
+struct LineField : public MDUnsignedField {
+ LineField() : MDUnsignedField(0, UINT32_MAX) {}
+};
+struct ColumnField : public MDUnsignedField {
+ ColumnField() : MDUnsignedField(0, UINT16_MAX) {}
+};
+struct DwarfTagField : public MDUnsignedField {
+ DwarfTagField() : MDUnsignedField(0, dwarf::DW_TAG_hi_user) {}
+};
+struct DwarfAttEncodingField : public MDUnsignedField {
+ DwarfAttEncodingField() : MDUnsignedField(0, dwarf::DW_ATE_hi_user) {}
+};
+struct DwarfVirtualityField : public MDUnsignedField {
+ DwarfVirtualityField() : MDUnsignedField(0, dwarf::DW_VIRTUALITY_max) {}
+};
+struct DwarfLangField : public MDUnsignedField {
+ DwarfLangField() : MDUnsignedField(0, dwarf::DW_LANG_hi_user) {}
+};
+
+struct MDSignedField : public MDFieldImpl<int64_t> {
+ int64_t Min;
+ int64_t Max;
+
+ MDSignedField(int64_t Default = 0)
+ : ImplTy(Default), Min(INT64_MIN), Max(INT64_MAX) {}
+ MDSignedField(int64_t Default, int64_t Min, int64_t Max)
+ : ImplTy(Default), Min(Min), Max(Max) {}
+};
+
+struct MDBoolField : public MDFieldImpl<bool> {
+ MDBoolField(bool Default = false) : ImplTy(Default) {}
+};
+struct MDField : public MDFieldImpl<Metadata *> {
+ MDField() : ImplTy(nullptr) {}
+};
+struct MDConstant : public MDFieldImpl<ConstantAsMetadata *> {
+ MDConstant() : ImplTy(nullptr) {}
+};
+struct MDStringField : public MDFieldImpl<std::string> {
+ MDStringField() : ImplTy(std::string()) {}
+};
+struct MDFieldList : public MDFieldImpl<SmallVector<Metadata *, 4>> {
+ MDFieldList() : ImplTy(SmallVector<Metadata *, 4>()) {}
+};
+
+} // end namespace
+
+namespace llvm {
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name,
+ MDUnsignedField &Result) {
+ if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned())
+ return TokError("expected unsigned integer");
+
+ auto &U = Lex.getAPSIntVal();
+ if (U.ugt(Result.Max))
+ return TokError("value for '" + Name + "' too large, limit is " +
+ Twine(Result.Max));
+ Result.assign(U.getZExtValue());
+ assert(Result.Val <= Result.Max && "Expected value in range");
+ Lex.Lex();
+ return false;
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name, LineField &Result) {
+ return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
+}
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name, ColumnField &Result) {
+ return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name, DwarfTagField &Result) {
+ if (Lex.getKind() == lltok::APSInt)
+ return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
+
+ if (Lex.getKind() != lltok::DwarfTag)
+ return TokError("expected DWARF tag");
+
+ unsigned Tag = dwarf::getTag(Lex.getStrVal());
+ if (Tag == dwarf::DW_TAG_invalid)
+ return TokError("invalid DWARF tag" + Twine(" '") + Lex.getStrVal() + "'");
+ assert(Tag <= Result.Max && "Expected valid DWARF tag");
+
+ Result.assign(Tag);
+ Lex.Lex();
+ return false;
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name,
+ DwarfVirtualityField &Result) {
+ if (Lex.getKind() == lltok::APSInt)
+ return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
+
+ if (Lex.getKind() != lltok::DwarfVirtuality)
+ return TokError("expected DWARF virtuality code");
+
+ unsigned Virtuality = dwarf::getVirtuality(Lex.getStrVal());
+ if (!Virtuality)
+ return TokError("invalid DWARF virtuality code" + Twine(" '") +
+ Lex.getStrVal() + "'");
+ assert(Virtuality <= Result.Max && "Expected valid DWARF virtuality code");
+ Result.assign(Virtuality);
+ Lex.Lex();
+ return false;
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name, DwarfLangField &Result) {
+ if (Lex.getKind() == lltok::APSInt)
+ return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
+
+ if (Lex.getKind() != lltok::DwarfLang)
+ return TokError("expected DWARF language");
+
+ unsigned Lang = dwarf::getLanguage(Lex.getStrVal());
+ if (!Lang)
+ return TokError("invalid DWARF language" + Twine(" '") + Lex.getStrVal() +
+ "'");
+ assert(Lang <= Result.Max && "Expected valid DWARF language");
+ Result.assign(Lang);
+ Lex.Lex();
+ return false;
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name,
+ DwarfAttEncodingField &Result) {
+ if (Lex.getKind() == lltok::APSInt)
+ return ParseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result));
+
+ if (Lex.getKind() != lltok::DwarfAttEncoding)
+ return TokError("expected DWARF type attribute encoding");
+
+ unsigned Encoding = dwarf::getAttributeEncoding(Lex.getStrVal());
+ if (!Encoding)
+ return TokError("invalid DWARF type attribute encoding" + Twine(" '") +
+ Lex.getStrVal() + "'");
+ assert(Encoding <= Result.Max && "Expected valid DWARF language");
+ Result.assign(Encoding);
+ Lex.Lex();
+ return false;
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name,
+ MDSignedField &Result) {
+ if (Lex.getKind() != lltok::APSInt)
+ return TokError("expected signed integer");
+
+ auto &S = Lex.getAPSIntVal();
+ if (S < Result.Min)
+ return TokError("value for '" + Name + "' too small, limit is " +
+ Twine(Result.Min));
+ if (S > Result.Max)
+ return TokError("value for '" + Name + "' too large, limit is " +
+ Twine(Result.Max));
+ Result.assign(S.getExtValue());
+ assert(Result.Val >= Result.Min && "Expected value in range");
+ assert(Result.Val <= Result.Max && "Expected value in range");
+ Lex.Lex();
+ return false;
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name, MDBoolField &Result) {
+ switch (Lex.getKind()) {
+ default:
+ return TokError("expected 'true' or 'false'");
+ case lltok::kw_true:
+ Result.assign(true);
+ break;
+ case lltok::kw_false:
+ Result.assign(false);
+ break;
+ }
+ Lex.Lex();
+ return false;
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name, MDField &Result) {
+ if (Lex.getKind() == lltok::kw_null) {
+ Lex.Lex();
+ Result.assign(nullptr);
+ return false;
+ }
+
+ Metadata *MD;
+ if (ParseMetadata(MD, nullptr))
+ return true;
+
+ Result.assign(MD);
+ return false;
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name, MDConstant &Result) {
+ Metadata *MD;
+ if (ParseValueAsMetadata(MD, "expected constant", nullptr))
+ return true;
+
+ Result.assign(cast<ConstantAsMetadata>(MD));
+ return false;
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name, MDStringField &Result) {
+ std::string S;
+ if (ParseStringConstant(S))
+ return true;
+
+ Result.assign(std::move(S));
+ return false;
+}
+
+template <>
+bool LLParser::ParseMDField(LocTy Loc, StringRef Name, MDFieldList &Result) {
+ SmallVector<Metadata *, 4> MDs;
+ if (ParseMDNodeVector(MDs))
+ return true;
+
+ Result.assign(std::move(MDs));
+ return false;
+}
+
+} // end namespace llvm
+
+template <class ParserTy>
+bool LLParser::ParseMDFieldsImplBody(ParserTy parseField) {
+ do {
+ if (Lex.getKind() != lltok::LabelStr)
+ return TokError("expected field label here");
+
+ if (parseField())
+ return true;
+ } while (EatIfPresent(lltok::comma));
+
+ return false;
+}
+
+template <class ParserTy>
+bool LLParser::ParseMDFieldsImpl(ParserTy parseField, LocTy &ClosingLoc) {
+ assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name");
+ Lex.Lex();
+
+ if (ParseToken(lltok::lparen, "expected '(' here"))
+ return true;
+ if (Lex.getKind() != lltok::rparen)
+ if (ParseMDFieldsImplBody(parseField))
+ return true;
+
+ ClosingLoc = Lex.getLoc();
+ return ParseToken(lltok::rparen, "expected ')' here");
+}
+
+template <class FieldTy>
+bool LLParser::ParseMDField(StringRef Name, FieldTy &Result) {
+ if (Result.Seen)
+ return TokError("field '" + Name + "' cannot be specified more than once");
+
+ LocTy Loc = Lex.getLoc();
+ Lex.Lex();
+ return ParseMDField(Loc, Name, Result);
+}
+
+bool LLParser::ParseSpecializedMDNode(MDNode *&N, bool IsDistinct) {
+ assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name");
+
+#define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) \
+ if (Lex.getStrVal() == #CLASS) \
+ return Parse##CLASS(N, IsDistinct);
+#include "llvm/IR/Metadata.def"
+
+ return TokError("expected metadata type");
+}
+
+#define DECLARE_FIELD(NAME, TYPE, INIT) TYPE NAME INIT
+#define NOP_FIELD(NAME, TYPE, INIT)
+#define REQUIRE_FIELD(NAME, TYPE, INIT) \
+ if (!NAME.Seen) \
+ return Error(ClosingLoc, "missing required field '" #NAME "'");
+#define PARSE_MD_FIELD(NAME, TYPE, DEFAULT) \
+ if (Lex.getStrVal() == #NAME) \
+ return ParseMDField(#NAME, NAME);
+#define PARSE_MD_FIELDS() \
+ VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) \
+ do { \
+ LocTy ClosingLoc; \
+ if (ParseMDFieldsImpl([&]() -> bool { \
+ VISIT_MD_FIELDS(PARSE_MD_FIELD, PARSE_MD_FIELD) \
+ return TokError(Twine("invalid field '") + Lex.getStrVal() + "'"); \
+ }, ClosingLoc)) \
+ return true; \
+ VISIT_MD_FIELDS(NOP_FIELD, REQUIRE_FIELD) \
+ } while (false)
+#define GET_OR_DISTINCT(CLASS, ARGS) \
+ (IsDistinct ? CLASS::getDistinct ARGS : CLASS::get ARGS)
+
+/// ParseMDLocationFields:
+/// ::= !MDLocation(line: 43, column: 8, scope: !5, inlinedAt: !6)
+bool LLParser::ParseMDLocation(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ OPTIONAL(line, LineField, ); \
+ OPTIONAL(column, ColumnField, ); \
+ REQUIRED(scope, MDField, ); \
+ OPTIONAL(inlinedAt, MDField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ auto get = (IsDistinct ? MDLocation::getDistinct : MDLocation::get);
+ Result = get(Context, line.Val, column.Val, scope.Val, inlinedAt.Val);
+ return false;
+}
+
+/// ParseGenericDebugNode:
+/// ::= !GenericDebugNode(tag: 15, header: "...", operands: {...})
+bool LLParser::ParseGenericDebugNode(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ REQUIRED(tag, DwarfTagField, ); \
+ OPTIONAL(header, MDStringField, ); \
+ OPTIONAL(operands, MDFieldList, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(GenericDebugNode,
+ (Context, tag.Val, header.Val, operands.Val));
+ return false;
+}
+
+/// ParseMDSubrange:
+/// ::= !MDSubrange(count: 30, lowerBound: 2)
+bool LLParser::ParseMDSubrange(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ REQUIRED(count, MDUnsignedField, (0, UINT64_MAX >> 1)); \
+ OPTIONAL(lowerBound, MDSignedField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(MDSubrange, (Context, count.Val, lowerBound.Val));
+ return false;
+}
+
+/// ParseMDEnumerator:
+/// ::= !MDEnumerator(value: 30, name: "SomeKind")
+bool LLParser::ParseMDEnumerator(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ REQUIRED(value, MDSignedField, ); \
+ REQUIRED(name, MDStringField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(MDEnumerator, (Context, value.Val, name.Val));
+ return false;
+}
+
+/// ParseMDBasicType:
+/// ::= !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32)
+bool LLParser::ParseMDBasicType(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ REQUIRED(tag, DwarfTagField, ); \
+ OPTIONAL(name, MDStringField, ); \
+ OPTIONAL(size, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(encoding, DwarfAttEncodingField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(MDBasicType, (Context, tag.Val, name.Val, size.Val,
+ align.Val, encoding.Val));
+ return false;
+}
+
+/// ParseMDDerivedType:
+/// ::= !MDDerivedType(tag: DW_TAG_pointer_type, name: "int", file: !0,
+/// line: 7, scope: !1, baseType: !2, size: 32,
+/// align: 32, offset: 0, flags: 0, extraData: !3)
+bool LLParser::ParseMDDerivedType(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ REQUIRED(tag, DwarfTagField, ); \
+ OPTIONAL(name, MDStringField, ); \
+ OPTIONAL(file, MDField, ); \
+ OPTIONAL(line, LineField, ); \
+ OPTIONAL(scope, MDField, ); \
+ REQUIRED(baseType, MDField, ); \
+ OPTIONAL(size, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(offset, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(flags, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(extraData, MDField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(MDDerivedType,
+ (Context, tag.Val, name.Val, file.Val, line.Val,
+ scope.Val, baseType.Val, size.Val, align.Val,
+ offset.Val, flags.Val, extraData.Val));
+ return false;
+}
+
+bool LLParser::ParseMDCompositeType(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ REQUIRED(tag, DwarfTagField, ); \
+ OPTIONAL(name, MDStringField, ); \
+ OPTIONAL(file, MDField, ); \
+ OPTIONAL(line, LineField, ); \
+ OPTIONAL(scope, MDField, ); \
+ OPTIONAL(baseType, MDField, ); \
+ OPTIONAL(size, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(offset, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(flags, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(elements, MDField, ); \
+ OPTIONAL(runtimeLang, DwarfLangField, ); \
+ OPTIONAL(vtableHolder, MDField, ); \
+ OPTIONAL(templateParams, MDField, ); \
+ OPTIONAL(identifier, MDStringField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(
+ MDCompositeType,
+ (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val,
+ size.Val, align.Val, offset.Val, flags.Val, elements.Val,
+ runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val));
+ return false;
+}
+
+bool LLParser::ParseMDSubroutineType(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ OPTIONAL(flags, MDUnsignedField, (0, UINT32_MAX)); \
+ REQUIRED(types, MDField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(MDSubroutineType, (Context, flags.Val, types.Val));
+ return false;
+}
+
+/// ParseMDFileType:
+/// ::= !MDFileType(filename: "path/to/file", directory: "/path/to/dir")
+bool LLParser::ParseMDFile(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ REQUIRED(filename, MDStringField, ); \
+ REQUIRED(directory, MDStringField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(MDFile, (Context, filename.Val, directory.Val));
+ return false;
+}
+
+/// ParseMDCompileUnit:
+/// ::= !MDCompileUnit(language: DW_LANG_C99, file: !0, producer: "clang",
+/// isOptimized: true, flags: "-O2", runtimeVersion: 1,
+/// splitDebugFilename: "abc.debug", emissionKind: 1,
+/// enums: !1, retainedTypes: !2, subprograms: !3,
+/// globals: !4, imports: !5)
+bool LLParser::ParseMDCompileUnit(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ REQUIRED(language, DwarfLangField, ); \
+ REQUIRED(file, MDField, ); \
+ OPTIONAL(producer, MDStringField, ); \
+ OPTIONAL(isOptimized, MDBoolField, ); \
+ OPTIONAL(flags, MDStringField, ); \
+ OPTIONAL(runtimeVersion, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(splitDebugFilename, MDStringField, ); \
+ OPTIONAL(emissionKind, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(enums, MDField, ); \
+ OPTIONAL(retainedTypes, MDField, ); \
+ OPTIONAL(subprograms, MDField, ); \
+ OPTIONAL(globals, MDField, ); \
+ OPTIONAL(imports, MDField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(MDCompileUnit,
+ (Context, language.Val, file.Val, producer.Val,
+ isOptimized.Val, flags.Val, runtimeVersion.Val,
+ splitDebugFilename.Val, emissionKind.Val, enums.Val,
+ retainedTypes.Val, subprograms.Val, globals.Val,
+ imports.Val));
+ return false;
+}
+
+/// ParseMDSubprogram:
+/// ::= !MDSubprogram(scope: !0, name: "foo", linkageName: "_Zfoo",
+/// file: !1, line: 7, type: !2, isLocal: false,
+/// isDefinition: true, scopeLine: 8, containingType: !3,
+/// virtuality: DW_VIRTUALTIY_pure_virtual,
+/// virtualIndex: 10, flags: 11,
+/// isOptimized: false, function: void ()* @_Z3foov,
+/// templateParams: !4, declaration: !5, variables: !6)
+bool LLParser::ParseMDSubprogram(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ OPTIONAL(scope, MDField, ); \
+ REQUIRED(name, MDStringField, ); \
+ OPTIONAL(linkageName, MDStringField, ); \
+ OPTIONAL(file, MDField, ); \
+ OPTIONAL(line, LineField, ); \
+ OPTIONAL(type, MDField, ); \
+ OPTIONAL(isLocal, MDBoolField, ); \
+ OPTIONAL(isDefinition, MDBoolField, (true)); \
+ OPTIONAL(scopeLine, LineField, ); \
+ OPTIONAL(containingType, MDField, ); \
+ OPTIONAL(virtuality, DwarfVirtualityField, ); \
+ OPTIONAL(virtualIndex, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(flags, MDUnsignedField, (0, UINT32_MAX)); \
+ OPTIONAL(isOptimized, MDBoolField, ); \
+ OPTIONAL(function, MDConstant, ); \
+ OPTIONAL(templateParams, MDField, ); \
+ OPTIONAL(declaration, MDField, ); \
+ OPTIONAL(variables, MDField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(
+ MDSubprogram, (Context, scope.Val, name.Val, linkageName.Val, file.Val,
+ line.Val, type.Val, isLocal.Val, isDefinition.Val,
+ scopeLine.Val, containingType.Val, virtuality.Val,
+ virtualIndex.Val, flags.Val, isOptimized.Val, function.Val,
+ templateParams.Val, declaration.Val, variables.Val));
+ return false;
+}
+
+/// ParseMDLexicalBlock:
+/// ::= !MDLexicalBlock(scope: !0, file: !2, line: 7, column: 9)
+bool LLParser::ParseMDLexicalBlock(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ REQUIRED(scope, MDField, ); \
+ OPTIONAL(file, MDField, ); \
+ OPTIONAL(line, LineField, ); \
+ OPTIONAL(column, ColumnField, );
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(
+ MDLexicalBlock, (Context, scope.Val, file.Val, line.Val, column.Val));
+ return false;
+}
+
+/// ParseMDLexicalBlockFile:
+/// ::= !MDLexicalBlockFile(scope: !0, file: !2, discriminator: 9)
+bool LLParser::ParseMDLexicalBlockFile(MDNode *&Result, bool IsDistinct) {
+#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
+ REQUIRED(scope, MDField, ); \
+ OPTIONAL(file, MDField, ); \
+ REQUIRED(discriminator, MDUnsignedField, (0, UINT32_MAX));
+ PARSE_MD_FIELDS();
+#undef VISIT_MD_FIELDS
+
+ Result = GET_OR_DISTINCT(MDLexicalBlockFile,
+ (Context, scope.Val, file.Val, discriminator.Val));
+ return false;
+}
+
+bool LLParser::ParseMDNamespace(MDNode *&Result, bool IsDistinct) {
+ return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDTemplateTypeParameter(MDNode *&Result, bool IsDistinct) {
+ return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDTemplateValueParameter(MDNode *&Result, bool IsDistinct) {
+ return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDGlobalVariable(MDNode *&Result, bool IsDistinct) {
+ return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDLocalVariable(MDNode *&Result, bool IsDistinct) {
+ return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDExpression(MDNode *&Result, bool IsDistinct) {
+ return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDObjCProperty(MDNode *&Result, bool IsDistinct) {
+ return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDImportedEntity(MDNode *&Result, bool IsDistinct) {
+ return TokError("unimplemented parser");
+}
+#undef PARSE_MD_FIELD
+#undef NOP_FIELD
+#undef REQUIRE_FIELD
+#undef DECLARE_FIELD
+
+/// ParseMetadataAsValue
+/// ::= metadata i32 %local
+/// ::= metadata i32 @global
+/// ::= metadata i32 7
+/// ::= metadata !0
+/// ::= metadata !{...}
+/// ::= metadata !"string"
+bool LLParser::ParseMetadataAsValue(Value *&V, PerFunctionState &PFS) {
+ // Note: the type 'metadata' has already been parsed.
+ Metadata *MD;
+ if (ParseMetadata(MD, &PFS))
+ return true;
+
+ V = MetadataAsValue::get(Context, MD);
+ return false;
+}
+
+/// ParseValueAsMetadata
+/// ::= i32 %local
+/// ::= i32 @global
+/// ::= i32 7
+bool LLParser::ParseValueAsMetadata(Metadata *&MD, const Twine &TypeMsg,
+ PerFunctionState *PFS) {
+ Type *Ty;
+ LocTy Loc;
+ if (ParseType(Ty, TypeMsg, Loc))
+ return true;
+ if (Ty->isMetadataTy())
+ return Error(Loc, "invalid metadata-value-metadata roundtrip");
+
+ Value *V;
+ if (ParseValue(Ty, V, PFS))
+ return true;
+
+ MD = ValueAsMetadata::get(V);
+ return false;
+}
+
+/// ParseMetadata
+/// ::= i32 %local
+/// ::= i32 @global
+/// ::= i32 7
+/// ::= !42
+/// ::= !{...}
+/// ::= !"string"
+/// ::= !MDLocation(...)
+bool LLParser::ParseMetadata(Metadata *&MD, PerFunctionState *PFS) {
+ if (Lex.getKind() == lltok::MetadataVar) {
+ MDNode *N;
+ if (ParseSpecializedMDNode(N))
+ return true;
+ MD = N;
return false;
}
+ // ValueAsMetadata:
+ // <type> <value>
+ if (Lex.getKind() != lltok::exclaim)
+ return ParseValueAsMetadata(MD, "expected metadata operand", PFS);
+
+ // '!'.
+ assert(Lex.getKind() == lltok::exclaim && "Expected '!' here");
+ Lex.Lex();
+
// MDString:
// ::= '!' STRINGCONSTANT
- if (ParseMDString(ID.MDStringVal)) return true;
- ID.Kind = ValID::t_MDString;
+ if (Lex.getKind() == lltok::StringConstant) {
+ MDString *S;
+ if (ParseMDString(S))
+ return true;
+ MD = S;
+ return false;
+ }
+
+ // MDNode:
+ // !{ ... }
+ // !7
+ MDNode *N;
+ if (ParseMDNodeTail(N))
+ return true;
+ MD = N;
return false;
}
(ID.UIntVal>>1)&1, (InlineAsm::AsmDialect(ID.UIntVal>>2)));
return false;
}
- case ValID::t_MDNode:
- if (!Ty->isMetadataTy())
- return Error(ID.Loc, "metadata value must have metadata type");
- V = ID.MDNodeVal;
- return false;
- case ValID::t_MDString:
- if (!Ty->isMetadataTy())
- return Error(ID.Loc, "metadata value must have metadata type");
- V = ID.MDStringVal;
- return false;
case ValID::t_GlobalName:
V = GetGlobalVal(ID.StrVal, Ty, ID.Loc);
return V == nullptr;
BuiltinLoc) ||
(EatIfPresent(lltok::kw_section) &&
ParseStringConstant(Section)) ||
- parseOptionalComdat(C) ||
+ parseOptionalComdat(FunctionName, C) ||
ParseOptionalAlignment(Alignment) ||
(EatIfPresent(lltok::kw_gc) &&
ParseStringConstant(GC)) ||
if (ParseType(Ty)) return true;
+ if (!PointerType::isValidElementType(Ty))
+ return TokError("pointer to this type is invalid");
+
bool AteExtraComma = false;
if (EatIfPresent(lltok::comma)) {
if (Lex.getKind() == lltok::kw_align) {
if (!Val0->getType()->isAggregateType())
return Error(Loc0, "insertvalue operand must be aggregate type");
- if (!ExtractValueInst::getIndexedType(Val0->getType(), Indices))
+ Type *IndexedType = ExtractValueInst::getIndexedType(Val0->getType(), Indices);
+ if (!IndexedType)
return Error(Loc0, "invalid indices for insertvalue");
+ if (IndexedType != Val1->getType())
+ return Error(Loc1, "insertvalue operand and field disagree in type: '" +
+ getTypeString(Val1->getType()) + "' instead of '" +
+ getTypeString(IndexedType) + "'");
Inst = InsertValueInst::Create(Val0, Val1, Indices);
return AteExtraComma ? InstExtraComma : InstNormal;
}
//===----------------------------------------------------------------------===//
/// ParseMDNodeVector
-/// ::= Element (',' Element)*
+/// ::= { Element (',' Element)* }
/// Element
/// ::= 'null' | TypeAndValue
-bool LLParser::ParseMDNodeVector(SmallVectorImpl<Value*> &Elts,
- PerFunctionState *PFS) {
+bool LLParser::ParseMDNodeVector(SmallVectorImpl<Metadata *> &Elts) {
+ if (ParseToken(lltok::lbrace, "expected '{' here"))
+ return true;
+
// Check for an empty list.
- if (Lex.getKind() == lltok::rbrace)
+ if (EatIfPresent(lltok::rbrace))
return false;
- bool IsLocal = false;
do {
- if (IsLocal)
- return TokError("unexpected operand after function-local metadata");
-
// Null is a special case since it is typeless.
if (EatIfPresent(lltok::kw_null)) {
Elts.push_back(nullptr);
continue;
}
- Value *V = nullptr;
- if (ParseTypeAndValue(V, PFS)) return true;
- Elts.push_back(V);
-
- if (isa<MDNode>(V) && cast<MDNode>(V)->isFunctionLocal())
- return TokError("unexpected nested function-local metadata");
- if (!V->getType()->isMetadataTy() && !isa<Constant>(V)) {
- assert(PFS && "Unexpected function-local metadata without PFS");
- if (Elts.size() > 1)
- return TokError("unexpected function-local metadata");
- IsLocal = true;
- }
+ Metadata *MD;
+ if (ParseMetadata(MD, nullptr))
+ return true;
+ Elts.push_back(MD);
} while (EatIfPresent(lltok::comma));
- return false;
+ return ParseToken(lltok::rbrace, "expected end of metadata node");
}
//===----------------------------------------------------------------------===//
projects / oota-llvm.git / blobdiff