//
// 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.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
+#include "llvm/DerivedTypes.h"
+#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/CodeGen/SSARegMap.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
-#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Instructions.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/GraphWriter.h"
-#include "llvm/Support/LeakDetector.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Config/config.h"
#include <fstream>
namespace {
struct VISIBILITY_HIDDEN Printer : public MachineFunctionPass {
+ static char ID;
+
std::ostream *OS;
const std::string Banner;
- Printer (std::ostream *_OS, const std::string &_Banner) :
- OS (_OS), Banner (_Banner) { }
+ Printer (std::ostream *_OS, const std::string &_Banner)
+ : MachineFunctionPass((intptr_t)&ID), OS (_OS), Banner (_Banner) { }
const char *getPassName() const { return "MachineFunction Printer"; }
return false;
}
};
+ char Printer::ID = 0;
}
/// Returns a newly-created MachineFunction Printer pass. The default output
namespace {
struct VISIBILITY_HIDDEN Deleter : public MachineFunctionPass {
+ static char ID;
+ Deleter() : MachineFunctionPass((intptr_t)&ID) {}
+
const char *getPassName() const { return "Machine Code Deleter"; }
bool runOnMachineFunction(MachineFunction &MF) {
return true;
}
};
+ char Deleter::ID = 0;
}
/// MachineCodeDeletion Pass - This pass deletes all of the machine code for
// MachineFunction implementation
//===---------------------------------------------------------------------===//
-MachineBasicBlock* ilist_traits<MachineBasicBlock>::createSentinel() {
- MachineBasicBlock* dummy = new MachineBasicBlock();
- LeakDetector::removeGarbageObject(dummy);
- return dummy;
-}
-
-void ilist_traits<MachineBasicBlock>::transferNodesFromList(
- iplist<MachineBasicBlock, ilist_traits<MachineBasicBlock> >& toList,
- ilist_iterator<MachineBasicBlock> first,
- ilist_iterator<MachineBasicBlock> last) {
- if (Parent != toList.Parent)
- for (; first != last; ++first)
- first->Parent = toList.Parent;
+void alist_traits<MachineBasicBlock>::deleteNode(MachineBasicBlock *MBB) {
+ MBB->getParent()->DeleteMachineBasicBlock(MBB);
}
MachineFunction::MachineFunction(const Function *F,
const TargetMachine &TM)
- : Annotation(MF_AID), Fn(F), Target(TM), UsedPhysRegs(0) {
- SSARegMapping = new SSARegMap();
+ : Annotation(MF_AID), Fn(F), Target(TM) {
+ RegInfo = new (Allocator.Allocate<MachineRegisterInfo>())
+ MachineRegisterInfo(*TM.getRegisterInfo());
MFInfo = 0;
- FrameInfo = new MachineFrameInfo();
- ConstantPool = new MachineConstantPool(TM.getTargetData());
+ FrameInfo = new (Allocator.Allocate<MachineFrameInfo>())
+ MachineFrameInfo(*TM.getFrameInfo());
+ ConstantPool = new (Allocator.Allocate<MachineConstantPool>())
+ MachineConstantPool(TM.getTargetData());
// Set up jump table.
const TargetData &TD = *TM.getTargetData();
bool IsPic = TM.getRelocationModel() == Reloc::PIC_;
unsigned EntrySize = IsPic ? 4 : TD.getPointerSize();
- unsigned Alignment = IsPic ? TD.getIntABIAlignment()
+ unsigned Alignment = IsPic ? TD.getABITypeAlignment(Type::Int32Ty)
: TD.getPointerABIAlignment();
- JumpTableInfo = new MachineJumpTableInfo(EntrySize, Alignment);
-
- BasicBlocks.Parent = this;
+ JumpTableInfo = new (Allocator.Allocate<MachineJumpTableInfo>())
+ MachineJumpTableInfo(EntrySize, Alignment);
}
MachineFunction::~MachineFunction() {
BasicBlocks.clear();
- delete SSARegMapping;
- delete MFInfo;
- delete FrameInfo;
- delete ConstantPool;
- delete JumpTableInfo;
- delete[] UsedPhysRegs;
+ InstructionRecycler.clear(Allocator);
+ BasicBlockRecycler.clear(Allocator);
+ MemOperandRecycler.clear(Allocator);
+ RegInfo->~MachineRegisterInfo(); Allocator.Deallocate(RegInfo);
+ if (MFInfo) {
+ MFInfo->~MachineFunctionInfo(); Allocator.Deallocate(MFInfo);
+ }
+ FrameInfo->~MachineFrameInfo(); Allocator.Deallocate(FrameInfo);
+ ConstantPool->~MachineConstantPool(); Allocator.Deallocate(ConstantPool);
+ JumpTableInfo->~MachineJumpTableInfo(); Allocator.Deallocate(JumpTableInfo);
}
MBBNumbering.resize(BlockNo);
}
+/// CreateMachineInstr - Allocate a new MachineInstr. Use this instead
+/// of `new MachineInstr'.
+///
+MachineInstr *
+MachineFunction::CreateMachineInstr(const TargetInstrDesc &TID, bool NoImp) {
+ return new (InstructionRecycler.Allocate<MachineInstr>(Allocator))
+ MachineInstr(TID, NoImp);
+}
+
+/// CloneMachineInstr - Create a new MachineInstr which is a copy of the
+/// 'Orig' instruction, identical in all ways except the the instruction
+/// has no parent, prev, or next.
+///
+MachineInstr *
+MachineFunction::CloneMachineInstr(const MachineInstr *Orig) {
+ return new (InstructionRecycler.Allocate<MachineInstr>(Allocator))
+ MachineInstr(*this, *Orig);
+}
+
+/// DeleteMachineInstr - Delete the given MachineInstr.
+///
+void
+MachineFunction::DeleteMachineInstr(MachineInstr *MI) {
+ // Clear the instructions memoperands. This must be done manually because
+ // the instruction's parent pointer is now null, so it can't properly
+ // deallocate them on its own.
+ MI->clearMemOperands(*this);
+
+ MI->~MachineInstr();
+ InstructionRecycler.Deallocate(Allocator, MI);
+}
+
+/// CreateMachineBasicBlock - Allocate a new MachineBasicBlock. Use this
+/// instead of `new MachineBasicBlock'.
+///
+MachineBasicBlock *
+MachineFunction::CreateMachineBasicBlock(const BasicBlock *bb) {
+ return new (BasicBlockRecycler.Allocate<MachineBasicBlock>(Allocator))
+ MachineBasicBlock(*this, bb);
+}
+
+/// DeleteMachineBasicBlock - Delete the given MachineBasicBlock.
+///
+void
+MachineFunction::DeleteMachineBasicBlock(MachineBasicBlock *MBB) {
+ assert(MBB->getParent() == this && "MBB parent mismatch!");
+ MBB->~MachineBasicBlock();
+ BasicBlockRecycler.Deallocate(Allocator, MBB);
+}
-void MachineFunction::dump() const { print(*cerr.stream()); }
+/// CreateMachineMemOperand - Allocate a new MachineMemOperand. Use this
+/// instead of `new MachineMemOperand'.
+///
+MachineMemOperand *
+MachineFunction::CreateMachineMemOperand(const MachineMemOperand &MMO) {
+ return new (MemOperandRecycler.Allocate<MachineMemOperand>(Allocator))
+ MachineMemOperand(MMO);
+}
+
+/// DeleteMachineMemOperand - Delete the given MachineMemOperand.
+///
+void
+MachineFunction::DeleteMachineMemOperand(MachineMemOperand *MO) {
+ MO->~MachineMemOperand();
+ MemOperandRecycler.Deallocate(Allocator, MO);
+}
+
+void MachineFunction::dump() const {
+ print(*cerr.stream());
+}
void MachineFunction::print(std::ostream &OS) const {
OS << "# Machine code for " << Fn->getName () << "():\n";
// Print Frame Information
- getFrameInfo()->print(*this, OS);
+ FrameInfo->print(*this, OS);
// Print JumpTable Information
- getJumpTableInfo()->print(OS);
+ JumpTableInfo->print(OS);
// Print Constant Pool
- getConstantPool()->print(OS);
+ ConstantPool->print(OS);
- const MRegisterInfo *MRI = getTarget().getRegisterInfo();
+ const TargetRegisterInfo *TRI = getTarget().getRegisterInfo();
- if (livein_begin() != livein_end()) {
+ if (!RegInfo->livein_empty()) {
OS << "Live Ins:";
- for (livein_iterator I = livein_begin(), E = livein_end(); I != E; ++I) {
- if (MRI)
- OS << " " << MRI->getName(I->first);
+ for (MachineRegisterInfo::livein_iterator
+ I = RegInfo->livein_begin(), E = RegInfo->livein_end(); I != E; ++I) {
+ if (TRI)
+ OS << " " << TRI->getName(I->first);
else
OS << " Reg #" << I->first;
}
OS << "\n";
}
- if (liveout_begin() != liveout_end()) {
+ if (!RegInfo->liveout_empty()) {
OS << "Live Outs:";
- for (liveout_iterator I = liveout_begin(), E = liveout_end(); I != E; ++I)
- if (MRI)
- OS << " " << MRI->getName(*I);
+ for (MachineRegisterInfo::liveout_iterator
+ I = RegInfo->liveout_begin(), E = RegInfo->liveout_end(); I != E; ++I)
+ if (TRI)
+ OS << " " << TRI->getName(*I);
else
OS << " Reg #" << *I;
OS << "\n";
void MachineFunction::destruct(const Function *Fn) {
bool Deleted = Fn->deleteAnnotation(MF_AID);
- assert(Deleted && "Machine code did not exist for function!");
+ assert(Deleted && "Machine code did not exist for function!");
+ Deleted = Deleted; // silence warning when no assertions.
}
MachineFunction& MachineFunction::get(const Function *F)
return *mc;
}
-void MachineFunction::clearSSARegMap() {
- delete SSARegMapping;
- SSARegMapping = 0;
-}
-
//===----------------------------------------------------------------------===//
// MachineFrameInfo implementation
//===----------------------------------------------------------------------===//
+/// CreateFixedObject - Create a new object at a fixed location on the stack.
+/// All fixed objects should be created before other objects are created for
+/// efficiency. By default, fixed objects are immutable. This returns an
+/// index with a negative value.
+///
+int MachineFrameInfo::CreateFixedObject(uint64_t Size, int64_t SPOffset,
+ bool Immutable) {
+ assert(Size != 0 && "Cannot allocate zero size fixed stack objects!");
+ Objects.insert(Objects.begin(), StackObject(Size, 1, SPOffset, Immutable));
+ return -++NumFixedObjects;
+}
+
+
void MachineFrameInfo::print(const MachineFunction &MF, std::ostream &OS) const{
int ValOffset = MF.getTarget().getFrameInfo()->getOffsetOfLocalArea();
for (unsigned i = 0, e = Objects.size(); i != e; ++i) {
const StackObject &SO = Objects[i];
OS << " <fi #" << (int)(i-NumFixedObjects) << ">: ";
+ if (SO.Size == ~0ULL) {
+ OS << "dead\n";
+ continue;
+ }
if (SO.Size == 0)
OS << "variable sized";
else
if (i < NumFixedObjects)
OS << " fixed";
if (i < NumFixedObjects || SO.SPOffset != -1) {
- int Off = SO.SPOffset - ValOffset;
+ int64_t Off = SO.SPOffset - ValOffset;
OS << " at location [SP";
if (Off > 0)
OS << "+" << Off;
unsigned Offset = 0;
if (!Constants.empty()) {
Offset = Constants.back().getOffset();
- Offset += TD->getTypeSize(Constants.back().getType());
+ Offset += TD->getABITypeSize(Constants.back().getType());
Offset = (Offset+AlignMask)&~AlignMask;
}
unsigned Offset = 0;
if (!Constants.empty()) {
Offset = Constants.back().getOffset();
- Offset += TD->getTypeSize(Constants.back().getType());
+ Offset += TD->getABITypeSize(Constants.back().getType());
Offset = (Offset+AlignMask)&~AlignMask;
}