LLVM 20.0.0git
AVRTargetMachine.h
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1//===-- AVRTargetMachine.h - Define TargetMachine for AVR -------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file declares the AVR specific subclass of TargetMachine.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_AVR_TARGET_MACHINE_H
14#define LLVM_AVR_TARGET_MACHINE_H
15
16#include "llvm/IR/DataLayout.h"
18
19#include "AVRFrameLowering.h"
20#include "AVRISelLowering.h"
21#include "AVRInstrInfo.h"
22#include "AVRSelectionDAGInfo.h"
23#include "AVRSubtarget.h"
24
25#include <optional>
26
27namespace llvm {
28
29/// A generic AVR implementation.
31public:
32 AVRTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
34 std::optional<Reloc::Model> RM,
35 std::optional<CodeModel::Model> CM, CodeGenOptLevel OL,
36 bool JIT);
37
38 const AVRSubtarget *getSubtargetImpl() const;
39 const AVRSubtarget *getSubtargetImpl(const Function &) const override;
40
42 return this->TLOF.get();
43 }
44
46
49 const TargetSubtargetInfo *STI) const override;
50
51 bool isNoopAddrSpaceCast(unsigned SrcAs, unsigned DestAs) const override {
52 // While AVR has different address spaces, they are all represented by
53 // 16-bit pointers that can be freely casted between (of course, a pointer
54 // must be cast back to its original address space to be dereferenceable).
55 // To be safe, also check the pointer size in case we implement __memx
56 // pointers.
57 return getPointerSize(SrcAs) == getPointerSize(DestAs);
58 }
59
60private:
61 std::unique_ptr<TargetLoweringObjectFile> TLOF;
62 AVRSubtarget SubTarget;
63};
64
65} // end namespace llvm
66
67#endif // LLVM_AVR_TARGET_MACHINE_H
#define F(x, y, z)
Definition: MD5.cpp:55
Basic Register Allocator
A specific AVR target MCU.
Definition: AVRSubtarget.h:32
A generic AVR implementation.
const AVRSubtarget * getSubtargetImpl() const
TargetLoweringObjectFile * getObjFileLowering() const override
TargetPassConfig * createPassConfig(PassManagerBase &PM) override
Create a pass configuration object to be used by addPassToEmitX methods for generating a pipeline of ...
bool isNoopAddrSpaceCast(unsigned SrcAs, unsigned DestAs) const override
Returns true if a cast between SrcAS and DestAS is a noop.
MachineFunctionInfo * createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F, const TargetSubtargetInfo *STI) const override
Create the target's instance of MachineFunctionInfo.
Allocate memory in an ever growing pool, as if by bump-pointer.
Definition: Allocator.h:66
This class describes a target machine that is implemented with the LLVM target-independent code gener...
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
unsigned getPointerSize(unsigned AS) const
Get the pointer size for this target.
std::unique_ptr< const MCSubtargetInfo > STI
TargetOptions Options
Target-Independent Code Generator Pass Configuration Options.
TargetSubtargetInfo - Generic base class for all target subtargets.
Target - Wrapper for Target specific information.
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
PassManagerBase - An abstract interface to allow code to add passes to a pass manager without having ...
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
CodeGenOptLevel
Code generation optimization level.
Definition: CodeGen.h:54
MachineFunctionInfo - This class can be derived from and used by targets to hold private target-speci...