llvm-6502/lib/Target/AArch64/AArch64TargetMachine.h
Reid Kleckner d12434058d Add out of line virtual destructors to all LLVMTargetMachine subclasses
These recently all grew a unique_ptr<TargetLoweringObjectFile> member in
r221878.  When anyone calls a virtual method of a class, clang-cl
requires all virtual methods to be semantically valid. This includes the
implicit virtual destructor, which triggers instantiation of the
unique_ptr destructor, which fails because the type being deleted is
incomplete.

This is just part of the ongoing saga of PR20337, which is affecting
Blink as well. Because the MSVC ABI doesn't have key functions, we end
up referencing the vtable and implicit destructor on any virtual call
through a class. We don't actually end up emitting the dtor, so it'd be
good if we could avoid this unneeded type completion work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222480 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-20 23:37:18 +00:00

82 lines
2.6 KiB
C++

//==-- AArch64TargetMachine.h - Define TargetMachine for AArch64 -*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the AArch64 specific subclass of TargetMachine.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64TARGETMACHINE_H
#define LLVM_LIB_TARGET_AARCH64_AARCH64TARGETMACHINE_H
#include "AArch64InstrInfo.h"
#include "AArch64Subtarget.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/Target/TargetMachine.h"
namespace llvm {
class AArch64TargetMachine : public LLVMTargetMachine {
protected:
std::unique_ptr<TargetLoweringObjectFile> TLOF;
AArch64Subtarget Subtarget;
mutable StringMap<std::unique_ptr<AArch64Subtarget>> SubtargetMap;
public:
AArch64TargetMachine(const Target &T, StringRef TT, StringRef CPU,
StringRef FS, const TargetOptions &Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL, bool IsLittleEndian);
~AArch64TargetMachine() override;
const AArch64Subtarget *getSubtargetImpl() const override {
return &Subtarget;
}
const AArch64Subtarget *getSubtargetImpl(const Function &F) const override;
// Pass Pipeline Configuration
TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
/// \brief Register AArch64 analysis passes with a pass manager.
void addAnalysisPasses(PassManagerBase &PM) override;
TargetLoweringObjectFile* getObjFileLowering() const override {
return TLOF.get();
}
private:
bool isLittle;
};
// AArch64leTargetMachine - AArch64 little endian target machine.
//
class AArch64leTargetMachine : public AArch64TargetMachine {
virtual void anchor();
public:
AArch64leTargetMachine(const Target &T, StringRef TT, StringRef CPU,
StringRef FS, const TargetOptions &Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL);
};
// AArch64beTargetMachine - AArch64 big endian target machine.
//
class AArch64beTargetMachine : public AArch64TargetMachine {
virtual void anchor();
public:
AArch64beTargetMachine(const Target &T, StringRef TT, StringRef CPU,
StringRef FS, const TargetOptions &Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL);
};
} // end namespace llvm
#endif