#ifndef LLVM_CODEGEN_MACHINEFUNCTION_H
#define LLVM_CODEGEN_MACHINEFUNCTION_H
-#include "llvm/ADT/ilist.h"
-#include "llvm/CodeGen/DebugLoc.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
-#include "llvm/Support/Annotation.h"
+#include "llvm/ADT/ilist.h"
+#include "llvm/Support/DebugLoc.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/Recycler.h"
namespace llvm {
+class DILocation;
+class Value;
class Function;
class MachineRegisterInfo;
class MachineFrameInfo;
class MachineConstantPool;
class MachineJumpTableInfo;
+class Pass;
class TargetMachine;
class TargetRegisterClass;
template <>
struct ilist_traits<MachineBasicBlock>
: public ilist_default_traits<MachineBasicBlock> {
- mutable ilist_node<MachineBasicBlock> Sentinel;
+ mutable ilist_half_node<MachineBasicBlock> Sentinel;
public:
MachineBasicBlock *createSentinel() const {
return static_cast<MachineBasicBlock*>(&Sentinel);
/// of type are accessed/created with MF::getInfo and destroyed when the
/// MachineFunction is destroyed.
struct MachineFunctionInfo {
- virtual ~MachineFunctionInfo() {}
+ virtual ~MachineFunctionInfo();
};
-class MachineFunction : private Annotation {
- const Function *Fn;
+class MachineFunction {
+ Function *Fn;
const TargetMachine &Target;
// RegInfo - Information about each register in use in the function.
// Tracks debug locations.
DebugLocTracker DebugLocInfo;
+ /// FunctionNumber - This provides a unique ID for each function emitted in
+ /// this translation unit.
+ ///
+ unsigned FunctionNumber;
+
+ // The alignment of the function.
+ unsigned Alignment;
+
+ MachineFunction(const MachineFunction &); // intentionally unimplemented
+ void operator=(const MachineFunction&); // intentionally unimplemented
+
public:
- MachineFunction(const Function *Fn, const TargetMachine &TM);
+ MachineFunction(Function *Fn, const TargetMachine &TM, unsigned FunctionNum);
~MachineFunction();
/// getFunction - Return the LLVM function that this machine code represents
///
- const Function *getFunction() const { return Fn; }
+ Function *getFunction() const { return Fn; }
+ /// 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; }
const MachineFrameInfo *getFrameInfo() const { return FrameInfo; }
/// getJumpTableInfo - Return the jump table info object for the current
- /// function. This object contains information about jump tables for switch
- /// instructions in the current function.
- ///
- MachineJumpTableInfo *getJumpTableInfo() { return JumpTableInfo; }
+ /// 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() { 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.
+ ///
+ unsigned getAlignment() const { return Alignment; }
+
+ /// setAlignment - Set the alignment (log2, not bytes) of the function.
+ ///
+ void setAlignment(unsigned A) { Alignment = A; }
+
+ /// EnsureAlignment - Make sure the function is at least 'A' bits aligned.
+ void EnsureAlignment(unsigned A) {
+ if (Alignment < A) Alignment = A;
+ }
+
+ /// getInfo - Keep track of various per-function pieces of information for
+ /// backends that would like to do so.
///
template<typename Ty>
Ty *getInfo() {
AlignOf<Ty>::Alignment));
MFInfo = new (Loc) Ty(*this);
}
-
- assert((void*)dynamic_cast<Ty*>(MFInfo) == (void*)MFInfo &&
- "Invalid concrete type or multiple inheritence for getInfo");
return static_cast<Ty*>(MFInfo);
}
/// 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];
/// print - Print out the MachineFunction in a format suitable for debugging
/// to the specified stream.
///
- void print(std::ostream &OS) const;
- void print(std::ostream *OS) const { if (OS) print(*OS); }
+ void print(raw_ostream &OS) 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=NULL, bool allowDoubleDefs=false) const;
// Provide accessors for the MachineBasicBlock list...
typedef BasicBlockListType::iterator iterator;
void splice(iterator InsertPt, iterator MBBI) {
BasicBlocks.splice(InsertPt, BasicBlocks, MBBI);
}
+ void splice(iterator InsertPt, iterator MBBI, iterator MBBE) {
+ BasicBlocks.splice(InsertPt, BasicBlocks, MBBI, MBBE);
+ }
void remove(iterator MBBI) {
BasicBlocks.remove(MBBI);
bool NoImp = false);
/// CloneMachineInstr - Create a new MachineInstr which is a copy of the
- /// 'Orig' instruction, identical in all ways except the the instruction
+ /// '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 DeleteMachineBasicBlock(MachineBasicBlock *MBB);
+ /// getMachineMemOperand - Allocate a new MachineMemOperand.
+ /// MachineMemOperands are owned by the MachineFunction and need not be
+ /// explicitly deallocated.
+ MachineMemOperand *getMachineMemOperand(const Value *v, unsigned f,
+ int64_t o, uint64_t s,
+ unsigned base_alignment);
+
+ /// 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);
+
+ /// 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);
+
+ //===--------------------------------------------------------------------===//
+ // 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;
+
+
//===--------------------------------------------------------------------===//
// Debug location.
//
- /// getOrCreateDebugLocID - Look up the DebugLocTuple index with the given
- /// source file, line, and column. If none currently exists, create a new
- /// DebugLocTuple, and insert it into the DebugIdMap.
- unsigned getOrCreateDebugLocID(GlobalVariable *CompileUnit,
- unsigned Line, unsigned Col);
-
- /// getDebugLocTuple - Get the DebugLocTuple for a given DebugLoc object.
- DebugLocTuple getDebugLocTuple(DebugLoc DL) const;
+ /// getDILocation - Get the DILocation for a given DebugLoc object.
+ DILocation getDILocation(DebugLoc DL) const;
/// getDefaultDebugLoc - Get the default debug location for the machine
/// function.
/// setDefaultDebugLoc - Get the default debug location for the machine
/// function.
void setDefaultDebugLoc(DebugLoc DL) { DefaultDebugLoc = DL; }
+
+ /// getDebugLocInfo - Get the debug info location tracker.
+ DebugLocTracker &getDebugLocInfo() { return DebugLocInfo; }
};
//===--------------------------------------------------------------------===//
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