llvm-6502/lib/Target/MSP430/MSP430TargetMachine.h
Mehdi Amini ceb9150268 Move the DataLayout to the generic TargetMachine, making it mandatory.
Summary:
I don't know why every singled backend had to redeclare its own DataLayout.
There was a virtual getDataLayout() on the common base TargetMachine, the
default implementation returned nullptr. It was not clear from this that
we could assume at call site that a DataLayout will be available with
each Target.

Now getDataLayout() is no longer virtual and return a pointer to the
DataLayout member of the common base TargetMachine. I plan to turn it into
a reference in a future patch.

The only backend that didn't have a DataLayout previsouly was the CPPBackend.
It now initializes the default DataLayout. This commit is NFC for all the
other backends.

Test Plan: clang+llvm ninja check-all

Reviewers: echristo

Subscribers: jfb, jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D8243

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231987 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-12 00:07:24 +00:00

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//===-- MSP430TargetMachine.h - Define TargetMachine for MSP430 -*- 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 MSP430 specific subclass of TargetMachine.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_MSP430_MSP430TARGETMACHINE_H
#define LLVM_LIB_TARGET_MSP430_MSP430TARGETMACHINE_H
#include "MSP430Subtarget.h"
#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetMachine.h"
namespace llvm {
/// MSP430TargetMachine
///
class MSP430TargetMachine : public LLVMTargetMachine {
std::unique_ptr<TargetLoweringObjectFile> TLOF;
MSP430Subtarget Subtarget;
public:
MSP430TargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS, const TargetOptions &Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL);
~MSP430TargetMachine() override;
const MSP430Subtarget *getSubtargetImpl() const override {
return &Subtarget;
}
TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
TargetLoweringObjectFile *getObjFileLowering() const override {
return TLOF.get();
}
}; // MSP430TargetMachine.
} // end namespace llvm
#endif