[clang][CodeGen] Break up TargetInfo.cpp [3/8]

[barannikov88]

Summary

Don't derive from DefaultTargetCodeGenInfo.
This class is going to stay in TargetInfo.cpp, whereas its derivants
are going to be moved to separate translation units. Just derive from
the base TargetCodeGenInfo class instead.

[barannikov88]

clang-format

[efriedma]

LGTM

[barannikov88]

Rebase

[barannikov88]

Rebase

[barannikov88]

Rebase

clang/lib/CodeGen/TargetInfo.cpp

int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const override {
     // This is recovered from gcc output.
     return 1; // r1 is the dedicated stack pointer
   }
 
   bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF,
                                llvm::Value *Address) const override;
 };
 
-class PPC64TargetCodeGenInfo : public DefaultTargetCodeGenInfo {
+class PPC64TargetCodeGenInfo : public TargetCodeGenInfo {
 public:
-  PPC64TargetCodeGenInfo(CodeGenTypes &CGT) : DefaultTargetCodeGenInfo(CGT) {}
+  PPC64TargetCodeGenInfo(CodeGenTypes &CGT)
+      : TargetCodeGenInfo(std::make_unique<DefaultABIInfo>(CGT)) {}
 
   int getDwarfEHStackPointer(CodeGen::CodeGenModule &M) const override {
     // This is recovered from gcc output.
     return 1; // r1 is the dedicated stack pointer
   }
 
   bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF,
                                llvm::Value *Address) const override;
 };
-
 }
 
 // Return true if the ABI requires Ty to be passed sign- or zero-
 // extended to 64 bits.
 bool
 PPC64_SVR4_ABIInfo::isPromotableTypeForABI(QualType Ty) const {
   // Treat an enum type as its underlying type.
   if (const EnumType *EnumTy = Ty->getAs<EnumType>())

 //===----------------------------------------------------------------------===//
 // TCE ABI Implementation (see http://tce.cs.tut.fi). Uses mostly the defaults.
 // Currently subclassed only to implement custom OpenCL C function attribute
 // handling.
 //===----------------------------------------------------------------------===//
 
 namespace {
 
-class TCETargetCodeGenInfo : public DefaultTargetCodeGenInfo {
+class TCETargetCodeGenInfo : public TargetCodeGenInfo {
 public:
   TCETargetCodeGenInfo(CodeGenTypes &CGT)
-    : DefaultTargetCodeGenInfo(CGT) {}
+      : TargetCodeGenInfo(std::make_unique<DefaultABIInfo>(CGT)) {}
 
   void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV,
                            CodeGen::CodeGenModule &M) const override;
 };
 
 void TCETargetCodeGenInfo::setTargetAttributes(
     const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M) const {
   if (GV->isDeclaration())