llvm-6502/lib/Target/ARM/ARMTargetMachine.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

122 lines
4.1 KiB
C++

//===-- ARMTargetMachine.h - Define TargetMachine for ARM -------*- 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 ARM specific subclass of TargetMachine.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_ARM_ARMTARGETMACHINE_H
#define LLVM_LIB_TARGET_ARM_ARMTARGETMACHINE_H
#include "ARMInstrInfo.h"
#include "ARMSubtarget.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/Target/TargetMachine.h"
namespace llvm {
class ARMBaseTargetMachine : public LLVMTargetMachine {
protected:
std::unique_ptr<TargetLoweringObjectFile> TLOF;
ARMSubtarget Subtarget;
bool isLittle;
mutable StringMap<std::unique_ptr<ARMSubtarget>> SubtargetMap;
public:
ARMBaseTargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
const TargetOptions &Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL,
bool isLittle);
~ARMBaseTargetMachine() override;
const ARMSubtarget *getSubtargetImpl() const override { return &Subtarget; }
const ARMSubtarget *getSubtargetImpl(const Function &F) const override;
/// \brief Register ARM analysis passes with a pass manager.
void addAnalysisPasses(PassManagerBase &PM) override;
// Pass Pipeline Configuration
TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
TargetLoweringObjectFile *getObjFileLowering() const override {
return TLOF.get();
}
};
/// ARMTargetMachine - ARM target machine.
///
class ARMTargetMachine : public ARMBaseTargetMachine {
virtual void anchor();
public:
ARMTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
const TargetOptions &Options, Reloc::Model RM,
CodeModel::Model CM, CodeGenOpt::Level OL, bool isLittle);
};
/// ARMLETargetMachine - ARM little endian target machine.
///
class ARMLETargetMachine : public ARMTargetMachine {
void anchor() override;
public:
ARMLETargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS, const TargetOptions &Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL);
};
/// ARMBETargetMachine - ARM big endian target machine.
///
class ARMBETargetMachine : public ARMTargetMachine {
void anchor() override;
public:
ARMBETargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
const TargetOptions &Options, Reloc::Model RM,
CodeModel::Model CM, CodeGenOpt::Level OL);
};
/// ThumbTargetMachine - Thumb target machine.
/// Due to the way architectures are handled, this represents both
/// Thumb-1 and Thumb-2.
///
class ThumbTargetMachine : public ARMBaseTargetMachine {
virtual void anchor();
public:
ThumbTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
const TargetOptions &Options, Reloc::Model RM,
CodeModel::Model CM, CodeGenOpt::Level OL, bool isLittle);
};
/// ThumbLETargetMachine - Thumb little endian target machine.
///
class ThumbLETargetMachine : public ThumbTargetMachine {
void anchor() override;
public:
ThumbLETargetMachine(const Target &T, StringRef TT, StringRef CPU,
StringRef FS, const TargetOptions &Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL);
};
/// ThumbBETargetMachine - Thumb big endian target machine.
///
class ThumbBETargetMachine : public ThumbTargetMachine {
void anchor() override;
public:
ThumbBETargetMachine(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