X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FMachineFunction.cpp;h=30896172883e431b5d45ed6305b243900a359d00;hb=63e3cd4e0f3731d6801ac24199652e4d7b4b3729;hp=205414e7264cc3c4b0d0b7b614a547e2be40efa3;hpb=f28bbda2c6c965dbd28e73e06c9e09231a77b0dc;p=oota-llvm.git diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp index 205414e7264..30896172883 100644 --- a/lib/CodeGen/MachineFunction.cpp +++ b/lib/CodeGen/MachineFunction.cpp @@ -2,8 +2,8 @@ // // 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. // //===----------------------------------------------------------------------===// // @@ -13,14 +13,16 @@ // //===----------------------------------------------------------------------===// +#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/Target/TargetMachine.h" #include "llvm/Target/TargetFrameInfo.h" #include "llvm/Function.h" @@ -31,9 +33,7 @@ #include "llvm/ADT/STLExtras.h" #include "llvm/Config/config.h" #include -#include #include - using namespace llvm; static AnnotationID MF_AID( @@ -44,11 +44,13 @@ void MachineFunctionPass::virtfn() {} 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"; } @@ -62,6 +64,7 @@ namespace { return false; } }; + char Printer::ID = 0; } /// Returns a newly-created MachineFunction Printer pass. The default output @@ -74,6 +77,9 @@ FunctionPass *llvm::createMachineFunctionPrinterPass(std::ostream *OS, 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) { @@ -82,6 +88,7 @@ namespace { return true; } }; + char Deleter::ID = 0; } /// MachineCodeDeletion Pass - This pass deletes all of the machine code for @@ -104,33 +111,42 @@ MachineBasicBlock* ilist_traits::createSentinel() { } void ilist_traits::transferNodesFromList( - iplist >& toList, - ilist_iterator first, - ilist_iterator last) { - if (Parent != toList.Parent) - for (; first != last; ++first) - first->Parent = toList.Parent; + iplist >& toList, + ilist_iterator first, + ilist_iterator last) { + // If splicing withing the same function, no change. + if (Parent == toList.Parent) return; + + for (; first != last; ++first) + first->setParent(toList.Parent); } 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 MachineRegisterInfo(*TM.getRegisterInfo()); MFInfo = 0; - FrameInfo = new MachineFrameInfo(); + FrameInfo = new MachineFrameInfo(*TM.getFrameInfo()); ConstantPool = new MachineConstantPool(TM.getTargetData()); - JumpTableInfo = new MachineJumpTableInfo(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.getABITypeAlignment(Type::Int32Ty) + : TD.getPointerABIAlignment(); + JumpTableInfo = new MachineJumpTableInfo(EntrySize, Alignment); + BasicBlocks.Parent = this; } MachineFunction::~MachineFunction() { BasicBlocks.clear(); - delete SSARegMapping; + delete RegInfo; delete MFInfo; delete FrameInfo; delete ConstantPool; delete JumpTableInfo; - delete[] UsedPhysRegs; } @@ -177,7 +193,7 @@ void MachineFunction::RenumberBlocks(MachineBasicBlock *MBB) { } -void MachineFunction::dump() const { print(std::cerr); } +void MachineFunction::dump() const { print(*cerr.stream()); } void MachineFunction::print(std::ostream &OS) const { OS << "# Machine code for " << Fn->getName () << "():\n"; @@ -191,13 +207,14 @@ void MachineFunction::print(std::ostream &OS) const { // Print Constant Pool getConstantPool()->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; @@ -206,11 +223,12 @@ void MachineFunction::print(std::ostream &OS) const { } 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"; @@ -268,8 +286,8 @@ void MachineFunction::viewCFG() const #ifndef NDEBUG ViewGraph(this, "mf" + getFunction()->getName()); #else - std::cerr << "SelectionDAG::viewGraph is only available in debug builds on " - << "systems with Graphviz or gv!\n"; + cerr << "SelectionDAG::viewGraph is only available in debug builds on " + << "systems with Graphviz or gv!\n"; #endif // NDEBUG } @@ -309,15 +327,23 @@ 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(); @@ -334,7 +360,7 @@ void MachineFrameInfo::print(const MachineFunction &MF, std::ostream &OS) const{ 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; @@ -350,7 +376,7 @@ void MachineFrameInfo::print(const MachineFunction &MF, std::ostream &OS) const{ } void MachineFrameInfo::dump(const MachineFunction &MF) const { - print(MF, std::cerr); + print(MF, *cerr.stream()); } @@ -362,7 +388,8 @@ void MachineFrameInfo::dump(const MachineFunction &MF) const { /// or return an existing one. /// unsigned MachineJumpTableInfo::getJumpTableIndex( - std::vector &DestBBs) { + const std::vector &DestBBs) { + assert(!DestBBs.empty() && "Cannot create an empty jump table!"); for (unsigned i = 0, e = JumpTables.size(); i != e; ++i) if (JumpTables[i].MBBs == DestBBs) return i; @@ -381,15 +408,7 @@ void MachineJumpTableInfo::print(std::ostream &OS) const { } } -unsigned MachineJumpTableInfo::getEntrySize() const { - return TD->getPointerSize(); -} - -unsigned MachineJumpTableInfo::getAlignment() const { - return TD->getPointerAlignment(); -} - -void MachineJumpTableInfo::dump() const { print(std::cerr); } +void MachineJumpTableInfo::dump() const { print(*cerr.stream()); } //===----------------------------------------------------------------------===// @@ -427,7 +446,7 @@ unsigned MachineConstantPool::getConstantPoolIndex(Constant *C, 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; } @@ -451,7 +470,7 @@ unsigned MachineConstantPool::getConstantPoolIndex(MachineConstantPoolValue *V, 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; } @@ -467,9 +486,9 @@ void MachineConstantPool::print(std::ostream &OS) const { Constants[i].Val.MachineCPVal->print(OS); else OS << *(Value*)Constants[i].Val.ConstVal; - OS << " , offset=" << Constants[i].Offset; + OS << " , offset=" << Constants[i].getOffset(); OS << "\n"; } } -void MachineConstantPool::dump() const { print(std::cerr); } +void MachineConstantPool::dump() const { print(*cerr.stream()); }