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04bcc11905
derived classes. Since global data alignment, layout, and mangling is often based on the DataLayout, move it to the TargetMachine. This ensures that global data is going to be layed out and mangled consistently if the subtarget changes on a per function basis. Prior to this all targets(*) have had subtarget dependent code moved out and onto the TargetMachine. *One target hasn't been migrated as part of this change: R600. The R600 port has, as a subtarget feature, the size of pointers and this affects global data layout. I've currently hacked in a FIXME to enable progress, but the port needs to be updated to either pass the 64-bitness to the TargetMachine, or fix the DataLayout to avoid subtarget dependent features. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227113 91177308-0d34-0410-b5e6-96231b3b80d8
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
//===-- MSP430Subtarget.h - Define Subtarget for the MSP430 ----*- C++ -*--===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the MSP430 specific subclass of TargetSubtargetInfo.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_MSP430_MSP430SUBTARGET_H
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#define LLVM_LIB_TARGET_MSP430_MSP430SUBTARGET_H
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#include "MSP430FrameLowering.h"
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#include "MSP430ISelLowering.h"
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#include "MSP430InstrInfo.h"
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#include "MSP430RegisterInfo.h"
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#include "MSP430SelectionDAGInfo.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/Target/TargetSubtargetInfo.h"
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#include <string>
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#define GET_SUBTARGETINFO_HEADER
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#include "MSP430GenSubtargetInfo.inc"
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namespace llvm {
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class StringRef;
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class MSP430Subtarget : public MSP430GenSubtargetInfo {
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virtual void anchor();
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bool ExtendedInsts;
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MSP430FrameLowering FrameLowering;
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MSP430InstrInfo InstrInfo;
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MSP430TargetLowering TLInfo;
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MSP430SelectionDAGInfo TSInfo;
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public:
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/// This constructor initializes the data members to match that
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/// of the specified triple.
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///
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MSP430Subtarget(const std::string &TT, const std::string &CPU,
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const std::string &FS, const TargetMachine &TM);
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MSP430Subtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
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/// ParseSubtargetFeatures - Parses features string setting specified
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/// subtarget options. Definition of function is auto generated by tblgen.
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void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
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const TargetFrameLowering *getFrameLowering() const override {
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return &FrameLowering;
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}
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const MSP430InstrInfo *getInstrInfo() const override { return &InstrInfo; }
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const TargetRegisterInfo *getRegisterInfo() const override {
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return &InstrInfo.getRegisterInfo();
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}
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const MSP430TargetLowering *getTargetLowering() const override {
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return &TLInfo;
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}
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const MSP430SelectionDAGInfo *getSelectionDAGInfo() const override {
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return &TSInfo;
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}
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};
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} // End llvm namespace
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#endif // LLVM_TARGET_MSP430_SUBTARGET_H
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