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ilist of MachineInstr objects. This allows constant time removal and insertion of MachineInstr instances from anywhere in each MachineBasicBlock. It also allows for constant time splicing of MachineInstrs into or out of MachineBasicBlocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8
142 lines
5.3 KiB
C++
142 lines
5.3 KiB
C++
//===-- llvm/CodeGen/MachineFunction.h --------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Collect native machine code for a function. This class contains a list of
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// MachineBasicBlock instances that make up the current compiled function.
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//
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// This class also contains pointers to various classes which hold
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// target-specific information about the generated code.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_MACHINEFUNCTION_H
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#define LLVM_CODEGEN_MACHINEFUNCTION_H
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#include "llvm/CodeGen/MachineBasicBlock.h"
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#include "Support/Annotation.h"
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namespace llvm {
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class Function;
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class TargetMachine;
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class SSARegMap;
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class MachineFunctionInfo;
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class MachineFrameInfo;
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class MachineConstantPool;
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class MachineFunction : private Annotation {
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const Function *Fn;
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const TargetMachine &Target;
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// List of machine basic blocks in function
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iplist<MachineBasicBlock> BasicBlocks;
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// Keeping track of mapping from SSA values to registers
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SSARegMap *SSARegMapping;
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// Used to keep track of frame and constant area information for sparc be
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MachineFunctionInfo *MFInfo;
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// Keep track of objects allocated on the stack.
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MachineFrameInfo *FrameInfo;
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// Keep track of constants which are spilled to memory
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MachineConstantPool *ConstantPool;
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public:
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MachineFunction(const Function *Fn, const TargetMachine &TM);
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~MachineFunction();
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/// getFunction - Return the LLVM function that this machine code represents
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///
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const Function *getFunction() const { return Fn; }
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/// getTarget - Return the target machine this machine code is compiled with
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///
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const TargetMachine &getTarget() const { return Target; }
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/// SSARegMap Interface... Keep track of information about each SSA virtual
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/// register, such as which register class it belongs to.
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///
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SSARegMap *getSSARegMap() const { return SSARegMapping; }
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void clearSSARegMap();
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/// getFrameInfo - Return the frame info object for the current function.
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/// This object contains information about objects allocated on the stack
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/// frame of the current function in an abstract way.
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///
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MachineFrameInfo *getFrameInfo() const { return FrameInfo; }
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/// getConstantPool - Return the constant pool object for the current
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/// function.
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MachineConstantPool *getConstantPool() const { return ConstantPool; }
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/// MachineFunctionInfo - Keep track of various per-function pieces of
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/// information for the sparc backend.
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///
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MachineFunctionInfo *getInfo() const { return MFInfo; }
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/// print - Print out the MachineFunction in a format suitable for debugging
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/// to the specified stream.
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///
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void print(std::ostream &OS) const;
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/// dump - Print the current MachineFunction to cerr, useful for debugger use.
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///
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void dump() const;
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// The next three methods are used to construct, destruct, and retrieve the
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// MachineFunction object for the given method.
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//
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// construct() -- Allocates and initializes for a given method and target
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// get() -- Returns a handle to the object.
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// This should not be called before "construct()"
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// for a given Method.
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//
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static MachineFunction& construct(const Function *F, const TargetMachine &TM);
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static void destruct(const Function *F);
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static MachineFunction& get(const Function *F);
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// Provide accessors for the MachineBasicBlock list...
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typedef iplist<MachineBasicBlock> BasicBlockListType;
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typedef BasicBlockListType::iterator iterator;
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typedef BasicBlockListType::const_iterator const_iterator;
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typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
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typedef std::reverse_iterator<iterator> reverse_iterator;
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// Provide accessors for basic blocks...
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const BasicBlockListType &getBasicBlockList() const { return BasicBlocks; }
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BasicBlockListType &getBasicBlockList() { return BasicBlocks; }
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//===--------------------------------------------------------------------===//
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// BasicBlock iterator forwarding functions
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//
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iterator begin() { return BasicBlocks.begin(); }
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const_iterator begin() const { return BasicBlocks.begin(); }
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iterator end () { return BasicBlocks.end(); }
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const_iterator end () const { return BasicBlocks.end(); }
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reverse_iterator rbegin() { return BasicBlocks.rbegin(); }
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const_reverse_iterator rbegin() const { return BasicBlocks.rbegin(); }
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reverse_iterator rend () { return BasicBlocks.rend(); }
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const_reverse_iterator rend () const { return BasicBlocks.rend(); }
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unsigned size() const { return BasicBlocks.size(); }
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bool empty() const { return BasicBlocks.empty(); }
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const MachineBasicBlock &front() const { return BasicBlocks.front(); }
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MachineBasicBlock &front() { return BasicBlocks.front(); }
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const MachineBasicBlock & back() const { return BasicBlocks.back(); }
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MachineBasicBlock & back() { return BasicBlocks.back(); }
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};
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} // End llvm namespace
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#endif
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