Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/IR/MDBuilder.h b/linux-x64/clang/include/llvm/IR/MDBuilder.h
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+//===---- llvm/MDBuilder.h - Builder for LLVM metadata ----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the MDBuilder class, which is used as a convenient way to
+// create LLVM metadata with a consistent and simplified interface.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_IR_MDBUILDER_H
+#define LLVM_IR_MDBUILDER_H
+
+#include "llvm/ADT/DenseSet.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/IR/GlobalValue.h"
+#include "llvm/Support/DataTypes.h"
+#include <utility>
+
+namespace llvm {
+
+class APInt;
+template <typename T> class ArrayRef;
+class LLVMContext;
+class Constant;
+class ConstantAsMetadata;
+class MDNode;
+class MDString;
+class Metadata;
+
+class MDBuilder {
+ LLVMContext &Context;
+
+public:
+ MDBuilder(LLVMContext &context) : Context(context) {}
+
+ /// \brief Return the given string as metadata.
+ MDString *createString(StringRef Str);
+
+ /// \brief Return the given constant as metadata.
+ ConstantAsMetadata *createConstant(Constant *C);
+
+ //===------------------------------------------------------------------===//
+ // FPMath metadata.
+ //===------------------------------------------------------------------===//
+
+ /// \brief Return metadata with the given settings. The special value 0.0
+ /// for the Accuracy parameter indicates the default (maximal precision)
+ /// setting.
+ MDNode *createFPMath(float Accuracy);
+
+ //===------------------------------------------------------------------===//
+ // Prof metadata.
+ //===------------------------------------------------------------------===//
+
+ /// \brief Return metadata containing two branch weights.
+ MDNode *createBranchWeights(uint32_t TrueWeight, uint32_t FalseWeight);
+
+ /// \brief Return metadata containing a number of branch weights.
+ MDNode *createBranchWeights(ArrayRef<uint32_t> Weights);
+
+ /// Return metadata specifying that a branch or switch is unpredictable.
+ MDNode *createUnpredictable();
+
+ /// Return metadata containing the entry \p Count for a function, a boolean
+ /// \Synthetic indicating whether the counts were synthetized, and the
+ /// GUIDs stored in \p Imports that need to be imported for sample PGO, to
+ /// enable the same inlines as the profiled optimized binary
+ MDNode *createFunctionEntryCount(uint64_t Count, bool Synthetic,
+ const DenseSet<GlobalValue::GUID> *Imports);
+
+ /// Return metadata containing the section prefix for a function.
+ MDNode *createFunctionSectionPrefix(StringRef Prefix);
+
+ //===------------------------------------------------------------------===//
+ // Range metadata.
+ //===------------------------------------------------------------------===//
+
+ /// \brief Return metadata describing the range [Lo, Hi).
+ MDNode *createRange(const APInt &Lo, const APInt &Hi);
+
+ /// \brief Return metadata describing the range [Lo, Hi).
+ MDNode *createRange(Constant *Lo, Constant *Hi);
+
+ //===------------------------------------------------------------------===//
+ // Callees metadata.
+ //===------------------------------------------------------------------===//
+
+ /// \brief Return metadata indicating the possible callees of indirect
+ /// calls.
+ MDNode *createCallees(ArrayRef<Function *> Callees);
+
+ //===------------------------------------------------------------------===//
+ // AA metadata.
+ //===------------------------------------------------------------------===//
+
+protected:
+ /// \brief Return metadata appropriate for a AA root node (scope or TBAA).
+ /// Each returned node is distinct from all other metadata and will never
+ /// be identified (uniqued) with anything else.
+ MDNode *createAnonymousAARoot(StringRef Name = StringRef(),
+ MDNode *Extra = nullptr);
+
+public:
+ /// \brief Return metadata appropriate for a TBAA root node. Each returned
+ /// node is distinct from all other metadata and will never be identified
+ /// (uniqued) with anything else.
+ MDNode *createAnonymousTBAARoot() {
+ return createAnonymousAARoot();
+ }
+
+ /// \brief Return metadata appropriate for an alias scope domain node.
+ /// Each returned node is distinct from all other metadata and will never
+ /// be identified (uniqued) with anything else.
+ MDNode *createAnonymousAliasScopeDomain(StringRef Name = StringRef()) {
+ return createAnonymousAARoot(Name);
+ }
+
+ /// \brief Return metadata appropriate for an alias scope root node.
+ /// Each returned node is distinct from all other metadata and will never
+ /// be identified (uniqued) with anything else.
+ MDNode *createAnonymousAliasScope(MDNode *Domain,
+ StringRef Name = StringRef()) {
+ return createAnonymousAARoot(Name, Domain);
+ }
+
+ /// \brief Return metadata appropriate for a TBAA root node with the given
+ /// name. This may be identified (uniqued) with other roots with the same
+ /// name.
+ MDNode *createTBAARoot(StringRef Name);
+
+ /// \brief Return metadata appropriate for an alias scope domain node with
+ /// the given name. This may be identified (uniqued) with other roots with
+ /// the same name.
+ MDNode *createAliasScopeDomain(StringRef Name);
+
+ /// \brief Return metadata appropriate for an alias scope node with
+ /// the given name. This may be identified (uniqued) with other scopes with
+ /// the same name and domain.
+ MDNode *createAliasScope(StringRef Name, MDNode *Domain);
+
+ /// \brief Return metadata for a non-root TBAA node with the given name,
+ /// parent in the TBAA tree, and value for 'pointsToConstantMemory'.
+ MDNode *createTBAANode(StringRef Name, MDNode *Parent,
+ bool isConstant = false);
+
+ struct TBAAStructField {
+ uint64_t Offset;
+ uint64_t Size;
+ MDNode *Type;
+ TBAAStructField(uint64_t Offset, uint64_t Size, MDNode *Type) :
+ Offset(Offset), Size(Size), Type(Type) {}
+ };
+
+ /// \brief Return metadata for a tbaa.struct node with the given
+ /// struct field descriptions.
+ MDNode *createTBAAStructNode(ArrayRef<TBAAStructField> Fields);
+
+ /// \brief Return metadata for a TBAA struct node in the type DAG
+ /// with the given name, a list of pairs (offset, field type in the type DAG).
+ MDNode *
+ createTBAAStructTypeNode(StringRef Name,
+ ArrayRef<std::pair<MDNode *, uint64_t>> Fields);
+
+ /// \brief Return metadata for a TBAA scalar type node with the
+ /// given name, an offset and a parent in the TBAA type DAG.
+ MDNode *createTBAAScalarTypeNode(StringRef Name, MDNode *Parent,
+ uint64_t Offset = 0);
+
+ /// \brief Return metadata for a TBAA tag node with the given
+ /// base type, access type and offset relative to the base type.
+ MDNode *createTBAAStructTagNode(MDNode *BaseType, MDNode *AccessType,
+ uint64_t Offset, bool IsConstant = false);
+
+ /// \brief Return metadata for a TBAA type node in the TBAA type DAG with the
+ /// given parent type, size in bytes, type identifier and a list of fields.
+ MDNode *createTBAATypeNode(MDNode *Parent, uint64_t Size, Metadata *Id,
+ ArrayRef<TBAAStructField> Fields =
+ ArrayRef<TBAAStructField>());
+
+ /// \brief Return metadata for a TBAA access tag with the given base type,
+ /// final access type, offset of the access relative to the base type, size of
+ /// the access and flag indicating whether the accessed object can be
+ /// considered immutable for the purposes of the TBAA analysis.
+ MDNode *createTBAAAccessTag(MDNode *BaseType, MDNode *AccessType,
+ uint64_t Offset, uint64_t Size,
+ bool IsImmutable = false);
+
+ /// \brief Return mutable version of the given mutable or immutable TBAA
+ /// access tag.
+ MDNode *createMutableTBAAAccessTag(MDNode *Tag);
+
+ /// \brief Return metadata containing an irreducible loop header weight.
+ MDNode *createIrrLoopHeaderWeight(uint64_t Weight);
+};
+
+} // end namespace llvm
+
+#endif