intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 228 insertions, 0 deletions

diff --git a/contrib/libs/llvm12/include/llvm/IR/MDBuilder.h b/contrib/libs/llvm12/include/llvm/IR/MDBuilder.h
new file mode 100644
index 0000000000..134d7ed105
--- /dev/null
+++ b/contrib/libs/llvm12/include/llvm/IR/MDBuilder.h
@@ -0,0 +1,228 @@
+#pragma once
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+
+//===---- llvm/MDBuilder.h - Builder for LLVM metadata ----------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// 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/Constants.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) {}
+
+  /// Return the given string as metadata.
+  MDString *createString(StringRef Str);
+
+  /// Return the given constant as metadata.
+  ConstantAsMetadata *createConstant(Constant *C);
+
+  //===------------------------------------------------------------------===//
+  // FPMath metadata.
+  //===------------------------------------------------------------------===//
+
+  /// 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.
+  //===------------------------------------------------------------------===//
+
+  /// Return metadata containing two branch weights.
+  MDNode *createBranchWeights(uint32_t TrueWeight, uint32_t FalseWeight);
+
+  /// 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);
+
+  /// Return metadata containing the pseudo probe descriptor for a function.
+  MDNode *createPseudoProbeDesc(uint64_t GUID, uint64_t Hash, Function *F);
+
+  //===------------------------------------------------------------------===//
+  // Range metadata.
+  //===------------------------------------------------------------------===//
+
+  /// Return metadata describing the range [Lo, Hi).
+  MDNode *createRange(const APInt &Lo, const APInt &Hi);
+
+  /// Return metadata describing the range [Lo, Hi).
+  MDNode *createRange(Constant *Lo, Constant *Hi);
+
+  //===------------------------------------------------------------------===//
+  // Callees metadata.
+  //===------------------------------------------------------------------===//
+
+  /// Return metadata indicating the possible callees of indirect
+  /// calls.
+  MDNode *createCallees(ArrayRef<Function *> Callees);
+
+  //===------------------------------------------------------------------===//
+  // Callback metadata.
+  //===------------------------------------------------------------------===//
+
+  /// Return metadata describing a callback (see llvm::AbstractCallSite).
+  MDNode *createCallbackEncoding(unsigned CalleeArgNo, ArrayRef<int> Arguments,
+                                 bool VarArgsArePassed);
+
+  /// Merge the new callback encoding \p NewCB into \p ExistingCallbacks.
+  MDNode *mergeCallbackEncodings(MDNode *ExistingCallbacks, MDNode *NewCB);
+
+  //===------------------------------------------------------------------===//
+  // AA metadata.
+  //===------------------------------------------------------------------===//
+
+protected:
+  /// 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:
+  /// 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();
+  }
+
+  /// 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);
+  }
+
+  /// 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);
+  }
+
+  /// 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);
+
+  /// 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);
+
+  /// 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);
+
+  /// 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) {}
+  };
+
+  /// Return metadata for a tbaa.struct node with the given
+  /// struct field descriptions.
+  MDNode *createTBAAStructNode(ArrayRef<TBAAStructField> Fields);
+
+  /// 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);
+
+  /// 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);
+
+  /// 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);
+
+  /// 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>());
+
+  /// 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);
+
+  /// Return mutable version of the given mutable or immutable TBAA
+  /// access tag.
+  MDNode *createMutableTBAAAccessTag(MDNode *Tag);
+
+  /// Return metadata containing an irreducible loop header weight.
+  MDNode *createIrrLoopHeaderWeight(uint64_t Weight);
+};
+
+} // end namespace llvm
+
+#endif
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif