//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#ifndef LLVM_CODEGEN_MACHINEFUNCTION_H
#define LLVM_CODEGEN_MACHINEFUNCTION_H
-#include "llvm/CodeGen/MachineDebugInfo.h"
+#include "llvm/ADT/ilist.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
-#include "llvm/Support/Annotation.h"
+#include "llvm/IR/DebugLoc.h"
+#include "llvm/IR/Metadata.h"
+#include "llvm/Support/Allocator.h"
+#include "llvm/Support/ArrayRecycler.h"
+#include "llvm/Support/Recycler.h"
namespace llvm {
+class Value;
class Function;
-class TargetMachine;
-class SSARegMap;
+class GCModuleInfo;
+class MachineRegisterInfo;
class MachineFrameInfo;
class MachineConstantPool;
+class MachineJumpTableInfo;
+class MachineModuleInfo;
+class MCContext;
+class Pass;
+class PseudoSourceValueManager;
+class TargetMachine;
+class TargetSubtargetInfo;
+class TargetRegisterClass;
+struct MachinePointerInfo;
-// ilist_traits
template <>
-struct ilist_traits<MachineBasicBlock> {
- // this is only set by the MachineFunction owning the ilist
- friend class MachineFunction;
- MachineFunction* Parent;
-
+struct ilist_traits<MachineBasicBlock>
+ : public ilist_default_traits<MachineBasicBlock> {
+ mutable ilist_half_node<MachineBasicBlock> Sentinel;
public:
- ilist_traits<MachineBasicBlock>() : Parent(0) { }
-
- static MachineBasicBlock* getPrev(MachineBasicBlock* N) { return N->Prev; }
- static MachineBasicBlock* getNext(MachineBasicBlock* N) { return N->Next; }
-
- static const MachineBasicBlock*
- getPrev(const MachineBasicBlock* N) { return N->Prev; }
-
- static const MachineBasicBlock*
- getNext(const MachineBasicBlock* N) { return N->Next; }
-
- static void setPrev(MachineBasicBlock* N, MachineBasicBlock* prev) {
- N->Prev = prev;
+ MachineBasicBlock *createSentinel() const {
+ return static_cast<MachineBasicBlock*>(&Sentinel);
}
- static void setNext(MachineBasicBlock* N, MachineBasicBlock* next) {
- N->Next = next;
+ void destroySentinel(MachineBasicBlock *) const {}
+
+ MachineBasicBlock *provideInitialHead() const { return createSentinel(); }
+ MachineBasicBlock *ensureHead(MachineBasicBlock*) const {
+ return createSentinel();
}
+ static void noteHead(MachineBasicBlock*, MachineBasicBlock*) {}
- static MachineBasicBlock* createSentinel();
- static void destroySentinel(MachineBasicBlock *MBB) { delete MBB; }
- void addNodeToList(MachineBasicBlock* N);
- void removeNodeFromList(MachineBasicBlock* N);
- void transferNodesFromList(iplist<MachineBasicBlock,
- ilist_traits<MachineBasicBlock> > &toList,
- ilist_iterator<MachineBasicBlock> first,
- ilist_iterator<MachineBasicBlock> last);
+ void addNodeToList(MachineBasicBlock* MBB);
+ void removeNodeFromList(MachineBasicBlock* MBB);
+ void deleteNode(MachineBasicBlock *MBB);
+private:
+ void createNode(const MachineBasicBlock &);
};
/// MachineFunctionInfo - This class can be derived from and used by targets to
/// of type are accessed/created with MF::getInfo and destroyed when the
/// MachineFunction is destroyed.
struct MachineFunctionInfo {
- virtual ~MachineFunctionInfo() {};
+ virtual ~MachineFunctionInfo();
+
+ /// \brief Factory function: default behavior is to call new using the
+ /// supplied allocator.
+ ///
+ /// This function can be overridden in a derive class.
+ template<typename Ty>
+ static Ty *create(BumpPtrAllocator &Allocator, MachineFunction &MF) {
+ return new (Allocator.Allocate<Ty>()) Ty(MF);
+ }
};
-class MachineFunction : private Annotation {
+class MachineFunction {
const Function *Fn;
const TargetMachine &Target;
+ const TargetSubtargetInfo *STI;
+ MCContext &Ctx;
+ MachineModuleInfo &MMI;
- // List of machine basic blocks in function
- ilist<MachineBasicBlock> BasicBlocks;
-
- // Keeping track of mapping from SSA values to registers
- SSARegMap *SSARegMapping;
+ // RegInfo - Information about each register in use in the function.
+ MachineRegisterInfo *RegInfo;
// Used to keep track of target-specific per-machine function information for
// the target implementation.
// Keep track of constants which are spilled to memory
MachineConstantPool *ConstantPool;
+ // Keep track of jump tables for switch instructions
+ MachineJumpTableInfo *JumpTableInfo;
+
// Function-level unique numbering for MachineBasicBlocks. When a
// MachineBasicBlock is inserted into a MachineFunction is it automatically
// numbered and this vector keeps track of the mapping from ID's to MBB's.
std::vector<MachineBasicBlock*> MBBNumbering;
- /// UsedPhysRegs - This is a new[]'d array of bools that is computed and set
- /// by the register allocator, and must be kept up to date by passes that run
- /// after register allocation (though most don't modify this). This is used
- /// so that the code generator knows which callee save registers to save and
- /// for other target specific uses.
- bool *UsedPhysRegs;
-
- /// LiveIns/LiveOuts - Keep track of the physical registers that are
- /// livein/liveout of the function. Live in values are typically arguments in
- /// registers, live out values are typically return values in registers.
- /// LiveIn values are allowed to have virtual registers associated with them,
- /// stored in the second element.
- std::vector<std::pair<unsigned, unsigned> > LiveIns;
- std::vector<unsigned> LiveOuts;
-
+ // Pool-allocate MachineFunction-lifetime and IR objects.
+ BumpPtrAllocator Allocator;
+
+ // Allocation management for instructions in function.
+ Recycler<MachineInstr> InstructionRecycler;
+
+ // Allocation management for operand arrays on instructions.
+ ArrayRecycler<MachineOperand> OperandRecycler;
+
+ // Allocation management for basic blocks in function.
+ Recycler<MachineBasicBlock> BasicBlockRecycler;
+
+ // List of machine basic blocks in function
+ typedef ilist<MachineBasicBlock> BasicBlockListType;
+ BasicBlockListType BasicBlocks;
+
+ /// FunctionNumber - This provides a unique ID for each function emitted in
+ /// this translation unit.
+ ///
+ unsigned FunctionNumber;
+
+ /// Alignment - The alignment of the function.
+ unsigned Alignment;
+
+ /// ExposesReturnsTwice - True if the function calls setjmp or related
+ /// functions with attribute "returns twice", but doesn't have
+ /// the attribute itself.
+ /// This is used to limit optimizations which cannot reason
+ /// about the control flow of such functions.
+ bool ExposesReturnsTwice;
+
+ /// True if the function includes any inline assembly.
+ bool HasInlineAsm;
+
+ // Allocation management for pseudo source values.
+ std::unique_ptr<PseudoSourceValueManager> PSVManager;
+
+ MachineFunction(const MachineFunction &) = delete;
+ void operator=(const MachineFunction&) = delete;
public:
- MachineFunction(const Function *Fn, const TargetMachine &TM);
+ MachineFunction(const Function *Fn, const TargetMachine &TM,
+ unsigned FunctionNum, MachineModuleInfo &MMI);
~MachineFunction();
+ MachineModuleInfo &getMMI() const { return MMI; }
+ MCContext &getContext() const { return Ctx; }
+
+ PseudoSourceValueManager &getPSVManager() const { return *PSVManager; }
+
+ /// Return the DataLayout attached to the Module associated to this MF.
+ const DataLayout &getDataLayout() const;
+
/// getFunction - Return the LLVM function that this machine code represents
///
const Function *getFunction() const { return Fn; }
+ /// getName - Return the name of the corresponding LLVM function.
+ ///
+ StringRef getName() const;
+
+ /// getFunctionNumber - Return a unique ID for the current function.
+ ///
+ unsigned getFunctionNumber() const { return FunctionNumber; }
+
/// getTarget - Return the target machine this machine code is compiled with
///
const TargetMachine &getTarget() const { return Target; }
- /// SSARegMap Interface... Keep track of information about each SSA virtual
- /// register, such as which register class it belongs to.
+ /// getSubtarget - Return the subtarget for which this machine code is being
+ /// compiled.
+ const TargetSubtargetInfo &getSubtarget() const { return *STI; }
+ void setSubtarget(const TargetSubtargetInfo *ST) { STI = ST; }
+
+ /// getSubtarget - This method returns a pointer to the specified type of
+ /// TargetSubtargetInfo. In debug builds, it verifies that the object being
+ /// returned is of the correct type.
+ template<typename STC> const STC &getSubtarget() const {
+ return *static_cast<const STC *>(STI);
+ }
+
+ /// getRegInfo - Return information about the registers currently in use.
///
- SSARegMap *getSSARegMap() const { return SSARegMapping; }
- void clearSSARegMap();
+ MachineRegisterInfo &getRegInfo() { return *RegInfo; }
+ const MachineRegisterInfo &getRegInfo() const { return *RegInfo; }
/// getFrameInfo - Return the frame info object for the current function.
/// This object contains information about objects allocated on the stack
/// frame of the current function in an abstract way.
///
- MachineFrameInfo *getFrameInfo() const { return FrameInfo; }
+ MachineFrameInfo *getFrameInfo() { return FrameInfo; }
+ const MachineFrameInfo *getFrameInfo() const { return FrameInfo; }
+
+ /// getJumpTableInfo - Return the jump table info object for the current
+ /// function. This object contains information about jump tables in the
+ /// current function. If the current function has no jump tables, this will
+ /// return null.
+ const MachineJumpTableInfo *getJumpTableInfo() const { return JumpTableInfo; }
+ MachineJumpTableInfo *getJumpTableInfo() { return JumpTableInfo; }
+
+ /// getOrCreateJumpTableInfo - Get the JumpTableInfo for this function, if it
+ /// does already exist, allocate one.
+ MachineJumpTableInfo *getOrCreateJumpTableInfo(unsigned JTEntryKind);
/// getConstantPool - Return the constant pool object for the current
/// function.
///
- MachineConstantPool *getConstantPool() const { return ConstantPool; }
+ MachineConstantPool *getConstantPool() { return ConstantPool; }
+ const MachineConstantPool *getConstantPool() const { return ConstantPool; }
- /// MachineFunctionInfo - Keep track of various per-function pieces of
- /// information for backends that would like to do so.
+ /// getAlignment - Return the alignment (log2, not bytes) of the function.
///
- template<typename Ty>
- Ty *getInfo() {
- if (!MFInfo) MFInfo = new Ty(*this);
+ unsigned getAlignment() const { return Alignment; }
- assert((void*)dynamic_cast<Ty*>(MFInfo) == (void*)MFInfo &&
- "Invalid concrete type or multiple inheritence for getInfo");
- return static_cast<Ty*>(MFInfo);
- }
+ /// setAlignment - Set the alignment (log2, not bytes) of the function.
+ ///
+ void setAlignment(unsigned A) { Alignment = A; }
- /// setUsedPhysRegs - The register allocator should call this to initialized
- /// the UsedPhysRegs set. This should be passed a new[]'d array with entries
- /// for all of the physical registers that the target supports. Each array
- /// entry should be set to true iff the physical register is used within the
- /// function.
- void setUsedPhysRegs(bool *UPR) { UsedPhysRegs = UPR; }
+ /// ensureAlignment - Make sure the function is at least 1 << A bytes aligned.
+ void ensureAlignment(unsigned A) {
+ if (Alignment < A) Alignment = A;
+ }
- /// getUsedPhysregs - This returns the UsedPhysRegs array. This returns null
- /// before register allocation.
- bool *getUsedPhysregs() { return UsedPhysRegs; }
- const bool *getUsedPhysregs() const { return UsedPhysRegs; }
+ /// exposesReturnsTwice - Returns true if the function calls setjmp or
+ /// any other similar functions with attribute "returns twice" without
+ /// having the attribute itself.
+ bool exposesReturnsTwice() const {
+ return ExposesReturnsTwice;
+ }
- /// isPhysRegUsed - Return true if the specified register is used in this
- /// function. This only works after register allocation.
- bool isPhysRegUsed(unsigned Reg) { return UsedPhysRegs[Reg]; }
+ /// setCallsSetJmp - Set a flag that indicates if there's a call to
+ /// a "returns twice" function.
+ void setExposesReturnsTwice(bool B) {
+ ExposesReturnsTwice = B;
+ }
- /// changePhyRegUsed - This method allows code that runs after register
- /// allocation to keep the PhysRegsUsed array up-to-date.
- void changePhyRegUsed(unsigned Reg, bool State) { UsedPhysRegs[Reg] = State; }
+ /// Returns true if the function contains any inline assembly.
+ bool hasInlineAsm() const {
+ return HasInlineAsm;
+ }
+ /// Set a flag that indicates that the function contains inline assembly.
+ void setHasInlineAsm(bool B) {
+ HasInlineAsm = B;
+ }
- // LiveIn/LiveOut management methods.
+ /// getInfo - Keep track of various per-function pieces of information for
+ /// backends that would like to do so.
+ ///
+ template<typename Ty>
+ Ty *getInfo() {
+ if (!MFInfo)
+ MFInfo = Ty::template create<Ty>(Allocator, *this);
+ return static_cast<Ty*>(MFInfo);
+ }
- /// addLiveIn/Out - Add the specified register as a live in/out. Note that it
- /// is an error to add the same register to the same set more than once.
- void addLiveIn(unsigned Reg, unsigned vreg = 0) {
- LiveIns.push_back(std::make_pair(Reg, vreg));
+ template<typename Ty>
+ const Ty *getInfo() const {
+ return const_cast<MachineFunction*>(this)->getInfo<Ty>();
}
- void addLiveOut(unsigned Reg) { LiveOuts.push_back(Reg); }
-
- // Iteration support for live in/out sets. These sets are kept in sorted
- // order by their register number.
- typedef std::vector<std::pair<unsigned,unsigned> >::const_iterator
- livein_iterator;
- typedef std::vector<unsigned>::const_iterator liveout_iterator;
- livein_iterator livein_begin() const { return LiveIns.begin(); }
- livein_iterator livein_end() const { return LiveIns.end(); }
- liveout_iterator liveout_begin() const { return LiveOuts.begin(); }
- liveout_iterator liveout_end() const { return LiveOuts.end(); }
/// getBlockNumbered - MachineBasicBlocks are automatically numbered when they
/// are inserted into the machine function. The block number for a machine
/// basic block can be found by using the MBB::getBlockNumber method, this
/// method provides the inverse mapping.
///
- MachineBasicBlock *getBlockNumbered(unsigned N) {
+ MachineBasicBlock *getBlockNumbered(unsigned N) const {
assert(N < MBBNumbering.size() && "Illegal block number");
assert(MBBNumbering[N] && "Block was removed from the machine function!");
return MBBNumbering[N];
}
- /// getLastBlock - Returns the MachineBasicBlock with the greatest number
- MachineBasicBlock *getLastBlock() {
- return MBBNumbering.back();
- }
- const MachineBasicBlock *getLastBlock() const {
- return MBBNumbering.back();
- }
-
+ /// Should we be emitting segmented stack stuff for the function
+ bool shouldSplitStack();
+
+ /// getNumBlockIDs - Return the number of MBB ID's allocated.
+ ///
+ unsigned getNumBlockIDs() const { return (unsigned)MBBNumbering.size(); }
+
+ /// RenumberBlocks - This discards all of the MachineBasicBlock numbers and
+ /// recomputes them. This guarantees that the MBB numbers are sequential,
+ /// dense, and match the ordering of the blocks within the function. If a
+ /// specific MachineBasicBlock is specified, only that block and those after
+ /// it are renumbered.
+ void RenumberBlocks(MachineBasicBlock *MBBFrom = nullptr);
+
/// print - Print out the MachineFunction in a format suitable for debugging
/// to the specified stream.
///
- void print(std::ostream &OS) const;
+ void print(raw_ostream &OS, SlotIndexes* = nullptr) const;
/// viewCFG - This function is meant for use from the debugger. You can just
/// say 'call F->viewCFG()' and a ghostview window should pop up from the
///
void dump() const;
- /// construct - Allocate and initialize a MachineFunction for a given Function
- /// and Target
- ///
- static MachineFunction& construct(const Function *F, const TargetMachine &TM);
-
- /// destruct - Destroy the MachineFunction corresponding to a given Function
- ///
- static void destruct(const Function *F);
-
- /// get - Return a handle to a MachineFunction corresponding to the given
- /// Function. This should not be called before "construct()" for a given
- /// Function.
- ///
- static MachineFunction& get(const Function *F);
+ /// verify - Run the current MachineFunction through the machine code
+ /// verifier, useful for debugger use.
+ void verify(Pass *p = nullptr, const char *Banner = nullptr) const;
// Provide accessors for the MachineBasicBlock list...
- typedef ilist<MachineBasicBlock> BasicBlockListType;
typedef BasicBlockListType::iterator iterator;
typedef BasicBlockListType::const_iterator const_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator;
- // Provide accessors for basic blocks...
- const BasicBlockListType &getBasicBlockList() const { return BasicBlocks; }
- BasicBlockListType &getBasicBlockList() { return BasicBlocks; }
+ /// addLiveIn - Add the specified physical register as a live-in value and
+ /// create a corresponding virtual register for it.
+ unsigned addLiveIn(unsigned PReg, const TargetRegisterClass *RC);
//===--------------------------------------------------------------------===//
- // BasicBlock iterator forwarding functions
+ // BasicBlock accessor functions.
//
iterator begin() { return BasicBlocks.begin(); }
const_iterator begin() const { return BasicBlocks.begin(); }
reverse_iterator rend () { return BasicBlocks.rend(); }
const_reverse_iterator rend () const { return BasicBlocks.rend(); }
- unsigned size() const { return BasicBlocks.size(); }
+ unsigned size() const { return (unsigned)BasicBlocks.size();}
bool empty() const { return BasicBlocks.empty(); }
const MachineBasicBlock &front() const { return BasicBlocks.front(); }
MachineBasicBlock &front() { return BasicBlocks.front(); }
const MachineBasicBlock & back() const { return BasicBlocks.back(); }
MachineBasicBlock & back() { return BasicBlocks.back(); }
+ void push_back (MachineBasicBlock *MBB) { BasicBlocks.push_back (MBB); }
+ void push_front(MachineBasicBlock *MBB) { BasicBlocks.push_front(MBB); }
+ void insert(iterator MBBI, MachineBasicBlock *MBB) {
+ BasicBlocks.insert(MBBI, MBB);
+ }
+ void splice(iterator InsertPt, iterator MBBI) {
+ BasicBlocks.splice(InsertPt, BasicBlocks, MBBI);
+ }
+ void splice(iterator InsertPt, MachineBasicBlock *MBB) {
+ BasicBlocks.splice(InsertPt, BasicBlocks, MBB);
+ }
+ void splice(iterator InsertPt, iterator MBBI, iterator MBBE) {
+ BasicBlocks.splice(InsertPt, BasicBlocks, MBBI, MBBE);
+ }
+
+ void remove(iterator MBBI) { BasicBlocks.remove(MBBI); }
+ void remove(MachineBasicBlock *MBBI) { BasicBlocks.remove(MBBI); }
+ void erase(iterator MBBI) { BasicBlocks.erase(MBBI); }
+ void erase(MachineBasicBlock *MBBI) { BasicBlocks.erase(MBBI); }
+
+ template <typename Comp>
+ void sort(Comp comp) {
+ BasicBlocks.sort(comp);
+ }
+
//===--------------------------------------------------------------------===//
// Internal functions used to automatically number MachineBasicBlocks
//
- /// getNextMBBNumber - Returns the next unique number to be assigned
- /// to a MachineBasicBlock in this MachineFunction.
+ /// \brief Adds the MBB to the internal numbering. Returns the unique number
+ /// assigned to the MBB.
///
unsigned addToMBBNumbering(MachineBasicBlock *MBB) {
MBBNumbering.push_back(MBB);
- return MBBNumbering.size()-1;
+ return (unsigned)MBBNumbering.size()-1;
}
/// removeFromMBBNumbering - Remove the specific machine basic block from our
/// implementation.
void removeFromMBBNumbering(unsigned N) {
assert(N < MBBNumbering.size() && "Illegal basic block #");
- MBBNumbering[N] = 0;
+ MBBNumbering[N] = nullptr;
+ }
+
+ /// CreateMachineInstr - Allocate a new MachineInstr. Use this instead
+ /// of `new MachineInstr'.
+ ///
+ MachineInstr *CreateMachineInstr(const MCInstrDesc &MCID,
+ DebugLoc DL,
+ bool NoImp = false);
+
+ /// CloneMachineInstr - Create a new MachineInstr which is a copy of the
+ /// 'Orig' instruction, identical in all ways except the instruction
+ /// has no parent, prev, or next.
+ ///
+ /// See also TargetInstrInfo::duplicate() for target-specific fixes to cloned
+ /// instructions.
+ MachineInstr *CloneMachineInstr(const MachineInstr *Orig);
+
+ /// DeleteMachineInstr - Delete the given MachineInstr.
+ ///
+ void DeleteMachineInstr(MachineInstr *MI);
+
+ /// CreateMachineBasicBlock - Allocate a new MachineBasicBlock. Use this
+ /// instead of `new MachineBasicBlock'.
+ ///
+ MachineBasicBlock *CreateMachineBasicBlock(const BasicBlock *bb = nullptr);
+
+ /// DeleteMachineBasicBlock - Delete the given MachineBasicBlock.
+ ///
+ void DeleteMachineBasicBlock(MachineBasicBlock *MBB);
+
+ /// getMachineMemOperand - Allocate a new MachineMemOperand.
+ /// MachineMemOperands are owned by the MachineFunction and need not be
+ /// explicitly deallocated.
+ MachineMemOperand *getMachineMemOperand(MachinePointerInfo PtrInfo,
+ unsigned f, uint64_t s,
+ unsigned base_alignment,
+ const AAMDNodes &AAInfo = AAMDNodes(),
+ const MDNode *Ranges = nullptr);
+
+ /// getMachineMemOperand - Allocate a new MachineMemOperand by copying
+ /// an existing one, adjusting by an offset and using the given size.
+ /// MachineMemOperands are owned by the MachineFunction and need not be
+ /// explicitly deallocated.
+ MachineMemOperand *getMachineMemOperand(const MachineMemOperand *MMO,
+ int64_t Offset, uint64_t Size);
+
+ typedef ArrayRecycler<MachineOperand>::Capacity OperandCapacity;
+
+ /// Allocate an array of MachineOperands. This is only intended for use by
+ /// internal MachineInstr functions.
+ MachineOperand *allocateOperandArray(OperandCapacity Cap) {
+ return OperandRecycler.allocate(Cap, Allocator);
+ }
+
+ /// Dellocate an array of MachineOperands and recycle the memory. This is
+ /// only intended for use by internal MachineInstr functions.
+ /// Cap must be the same capacity that was used to allocate the array.
+ void deallocateOperandArray(OperandCapacity Cap, MachineOperand *Array) {
+ OperandRecycler.deallocate(Cap, Array);
+ }
+
+ /// \brief Allocate and initialize a register mask with @p NumRegister bits.
+ uint32_t *allocateRegisterMask(unsigned NumRegister) {
+ unsigned Size = (NumRegister + 31) / 32;
+ uint32_t *Mask = Allocator.Allocate<uint32_t>(Size);
+ for (unsigned i = 0; i != Size; ++i)
+ Mask[i] = 0;
+ return Mask;
}
+
+ /// allocateMemRefsArray - Allocate an array to hold MachineMemOperand
+ /// pointers. This array is owned by the MachineFunction.
+ MachineInstr::mmo_iterator allocateMemRefsArray(unsigned long Num);
+
+ /// extractLoadMemRefs - Allocate an array and populate it with just the
+ /// load information from the given MachineMemOperand sequence.
+ std::pair<MachineInstr::mmo_iterator,
+ MachineInstr::mmo_iterator>
+ extractLoadMemRefs(MachineInstr::mmo_iterator Begin,
+ MachineInstr::mmo_iterator End);
+
+ /// extractStoreMemRefs - Allocate an array and populate it with just the
+ /// store information from the given MachineMemOperand sequence.
+ std::pair<MachineInstr::mmo_iterator,
+ MachineInstr::mmo_iterator>
+ extractStoreMemRefs(MachineInstr::mmo_iterator Begin,
+ MachineInstr::mmo_iterator End);
+
+ /// Allocate a string and populate it with the given external symbol name.
+ const char *createExternalSymbolName(StringRef Name);
+
+ //===--------------------------------------------------------------------===//
+ // Label Manipulation.
+ //
+
+ /// getJTISymbol - Return the MCSymbol for the specified non-empty jump table.
+ /// If isLinkerPrivate is specified, an 'l' label is returned, otherwise a
+ /// normal 'L' label is returned.
+ MCSymbol *getJTISymbol(unsigned JTI, MCContext &Ctx,
+ bool isLinkerPrivate = false) const;
+
+ /// getPICBaseSymbol - Return a function-local symbol to represent the PIC
+ /// base.
+ MCSymbol *getPICBaseSymbol() const;
};
//===--------------------------------------------------------------------===//
typedef MachineFunction::iterator nodes_iterator;
static nodes_iterator nodes_begin(MachineFunction *F) { return F->begin(); }
static nodes_iterator nodes_end (MachineFunction *F) { return F->end(); }
+ static unsigned size (MachineFunction *F) { return F->size(); }
};
template <> struct GraphTraits<const MachineFunction*> :
public GraphTraits<const MachineBasicBlock*> {
// nodes_iterator/begin/end - Allow iteration over all nodes in the graph
typedef MachineFunction::const_iterator nodes_iterator;
- static nodes_iterator nodes_begin(const MachineFunction *F) { return F->begin(); }
- static nodes_iterator nodes_end (const MachineFunction *F) { return F->end(); }
+ static nodes_iterator nodes_begin(const MachineFunction *F) {
+ return F->begin();
+ }
+ static nodes_iterator nodes_end (const MachineFunction *F) {
+ return F->end();
+ }
+ static unsigned size (const MachineFunction *F) {
+ return F->size();
+ }
};
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