YQ Connector: support managed ClickHouse

Со стороны dqrun можно обратиться к инстансу коннектора, который работает на streaming стенде, и извлечь данные из облачного CH.

1 files changed, 178 insertions, 0 deletions

diff --git a/contrib/libs/clang14/lib/CodeGen/CGVTT.cpp b/contrib/libs/clang14/lib/CodeGen/CGVTT.cpp
new file mode 100644
index 0000000000..564d9f354e
--- /dev/null
+++ b/contrib/libs/clang14/lib/CodeGen/CGVTT.cpp
@@ -0,0 +1,178 @@
+//===--- CGVTT.cpp - Emit LLVM Code for C++ VTTs --------------------------===//
+//
+// 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 contains code dealing with C++ code generation of VTTs (vtable tables).
+//
+//===----------------------------------------------------------------------===//
+
+#include "CodeGenModule.h"
+#include "CGCXXABI.h"
+#include "clang/AST/RecordLayout.h"
+#include "clang/AST/VTTBuilder.h"
+using namespace clang;
+using namespace CodeGen;
+
+static llvm::GlobalVariable *
+GetAddrOfVTTVTable(CodeGenVTables &CGVT, CodeGenModule &CGM,
+                   const CXXRecordDecl *MostDerivedClass,
+                   const VTTVTable &VTable,
+                   llvm::GlobalVariable::LinkageTypes Linkage,
+                   VTableLayout::AddressPointsMapTy &AddressPoints) {
+  if (VTable.getBase() == MostDerivedClass) {
+    assert(VTable.getBaseOffset().isZero() &&
+           "Most derived class vtable must have a zero offset!");
+    // This is a regular vtable.
+    return CGM.getCXXABI().getAddrOfVTable(MostDerivedClass, CharUnits());
+  }
+
+  return CGVT.GenerateConstructionVTable(MostDerivedClass,
+                                         VTable.getBaseSubobject(),
+                                         VTable.isVirtual(),
+                                         Linkage,
+                                         AddressPoints);
+}
+
+void
+CodeGenVTables::EmitVTTDefinition(llvm::GlobalVariable *VTT,
+                                  llvm::GlobalVariable::LinkageTypes Linkage,
+                                  const CXXRecordDecl *RD) {
+  VTTBuilder Builder(CGM.getContext(), RD, /*GenerateDefinition=*/true);
+  llvm::ArrayType *ArrayType =
+      llvm::ArrayType::get(CGM.Int8PtrTy, Builder.getVTTComponents().size());
+
+  SmallVector<llvm::GlobalVariable *, 8> VTables;
+  SmallVector<VTableAddressPointsMapTy, 8> VTableAddressPoints;
+  for (const VTTVTable *i = Builder.getVTTVTables().begin(),
+                       *e = Builder.getVTTVTables().end(); i != e; ++i) {
+    VTableAddressPoints.push_back(VTableAddressPointsMapTy());
+    VTables.push_back(GetAddrOfVTTVTable(*this, CGM, RD, *i, Linkage,
+                                         VTableAddressPoints.back()));
+  }
+
+  SmallVector<llvm::Constant *, 8> VTTComponents;
+  for (const VTTComponent *i = Builder.getVTTComponents().begin(),
+                          *e = Builder.getVTTComponents().end(); i != e; ++i) {
+    const VTTVTable &VTTVT = Builder.getVTTVTables()[i->VTableIndex];
+    llvm::GlobalVariable *VTable = VTables[i->VTableIndex];
+    VTableLayout::AddressPointLocation AddressPoint;
+    if (VTTVT.getBase() == RD) {
+      // Just get the address point for the regular vtable.
+      AddressPoint =
+          getItaniumVTableContext().getVTableLayout(RD).getAddressPoint(
+              i->VTableBase);
+    } else {
+      AddressPoint = VTableAddressPoints[i->VTableIndex].lookup(i->VTableBase);
+      assert(AddressPoint.AddressPointIndex != 0 &&
+             "Did not find ctor vtable address point!");
+    }
+
+     llvm::Value *Idxs[] = {
+       llvm::ConstantInt::get(CGM.Int32Ty, 0),
+       llvm::ConstantInt::get(CGM.Int32Ty, AddressPoint.VTableIndex),
+       llvm::ConstantInt::get(CGM.Int32Ty, AddressPoint.AddressPointIndex),
+     };
+
+     llvm::Constant *Init = llvm::ConstantExpr::getGetElementPtr(
+         VTable->getValueType(), VTable, Idxs, /*InBounds=*/true,
+         /*InRangeIndex=*/1);
+
+     Init = llvm::ConstantExpr::getPointerBitCastOrAddrSpaceCast(Init,
+                                                                 CGM.Int8PtrTy);
+
+     VTTComponents.push_back(Init);
+  }
+
+  llvm::Constant *Init = llvm::ConstantArray::get(ArrayType, VTTComponents);
+
+  VTT->setInitializer(Init);
+
+  // Set the correct linkage.
+  VTT->setLinkage(Linkage);
+
+  if (CGM.supportsCOMDAT() && VTT->isWeakForLinker())
+    VTT->setComdat(CGM.getModule().getOrInsertComdat(VTT->getName()));
+
+  // Set the right visibility.
+  CGM.setGVProperties(VTT, RD);
+}
+
+llvm::GlobalVariable *CodeGenVTables::GetAddrOfVTT(const CXXRecordDecl *RD) {
+  assert(RD->getNumVBases() && "Only classes with virtual bases need a VTT");
+
+  SmallString<256> OutName;
+  llvm::raw_svector_ostream Out(OutName);
+  cast<ItaniumMangleContext>(CGM.getCXXABI().getMangleContext())
+      .mangleCXXVTT(RD, Out);
+  StringRef Name = OutName.str();
+
+  // This will also defer the definition of the VTT.
+  (void) CGM.getCXXABI().getAddrOfVTable(RD, CharUnits());
+
+  VTTBuilder Builder(CGM.getContext(), RD, /*GenerateDefinition=*/false);
+
+  llvm::ArrayType *ArrayType =
+    llvm::ArrayType::get(CGM.Int8PtrTy, Builder.getVTTComponents().size());
+  unsigned Align = CGM.getDataLayout().getABITypeAlignment(CGM.Int8PtrTy);
+
+  llvm::GlobalVariable *GV = CGM.CreateOrReplaceCXXRuntimeVariable(
+      Name, ArrayType, llvm::GlobalValue::ExternalLinkage, Align);
+  GV->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
+  return GV;
+}
+
+uint64_t CodeGenVTables::getSubVTTIndex(const CXXRecordDecl *RD,
+                                        BaseSubobject Base) {
+  BaseSubobjectPairTy ClassSubobjectPair(RD, Base);
+
+  SubVTTIndiciesMapTy::iterator I = SubVTTIndicies.find(ClassSubobjectPair);
+  if (I != SubVTTIndicies.end())
+    return I->second;
+
+  VTTBuilder Builder(CGM.getContext(), RD, /*GenerateDefinition=*/false);
+
+  for (llvm::DenseMap<BaseSubobject, uint64_t>::const_iterator I =
+       Builder.getSubVTTIndicies().begin(),
+       E = Builder.getSubVTTIndicies().end(); I != E; ++I) {
+    // Insert all indices.
+    BaseSubobjectPairTy ClassSubobjectPair(RD, I->first);
+
+    SubVTTIndicies.insert(std::make_pair(ClassSubobjectPair, I->second));
+  }
+
+  I = SubVTTIndicies.find(ClassSubobjectPair);
+  assert(I != SubVTTIndicies.end() && "Did not find index!");
+
+  return I->second;
+}
+
+uint64_t
+CodeGenVTables::getSecondaryVirtualPointerIndex(const CXXRecordDecl *RD,
+                                                BaseSubobject Base) {
+  SecondaryVirtualPointerIndicesMapTy::iterator I =
+    SecondaryVirtualPointerIndices.find(std::make_pair(RD, Base));
+
+  if (I != SecondaryVirtualPointerIndices.end())
+    return I->second;
+
+  VTTBuilder Builder(CGM.getContext(), RD, /*GenerateDefinition=*/false);
+
+  // Insert all secondary vpointer indices.
+  for (llvm::DenseMap<BaseSubobject, uint64_t>::const_iterator I =
+       Builder.getSecondaryVirtualPointerIndices().begin(),
+       E = Builder.getSecondaryVirtualPointerIndices().end(); I != E; ++I) {
+    std::pair<const CXXRecordDecl *, BaseSubobject> Pair =
+      std::make_pair(RD, I->first);
+
+    SecondaryVirtualPointerIndices.insert(std::make_pair(Pair, I->second));
+  }
+
+  I = SecondaryVirtualPointerIndices.find(std::make_pair(RD, Base));
+  assert(I != SecondaryVirtualPointerIndices.end() && "Did not find index!");
+
+  return I->second;
+}