Great renaming: Sparc --> SparcV9
llvm-svn: 11826
diff --git a/llvm/lib/Target/SparcV9/SparcV9AsmPrinter.cpp b/llvm/lib/Target/SparcV9/SparcV9AsmPrinter.cpp
new file mode 100644
index 0000000..146f11c
--- /dev/null
+++ b/llvm/lib/Target/SparcV9/SparcV9AsmPrinter.cpp
@@ -0,0 +1,800 @@
+//===-- EmitAssembly.cpp - Emit SparcV9 Specific .s File ---------------------==//
+//
+// 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 implements all of the stuff necessary to output a .s file from
+// LLVM. The code in this file assumes that the specified module has already
+// been compiled into the internal data structures of the Module.
+//
+// This code largely consists of two LLVM Pass's: a FunctionPass and a Pass.
+// The FunctionPass is pipelined together with all of the rest of the code
+// generation stages, and the Pass runs at the end to emit code for global
+// variables and such.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Constants.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/Module.h"
+#include "llvm/Pass.h"
+#include "llvm/Assembly/Writer.h"
+#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineFunctionInfo.h"
+#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/Support/Mangler.h"
+#include "Support/StringExtras.h"
+#include "Support/Statistic.h"
+#include "SparcV9Internals.h"
+#include <string>
+using namespace llvm;
+
+namespace {
+ Statistic<> EmittedInsts("asm-printer", "Number of machine instrs printed");
+
+ //===--------------------------------------------------------------------===//
+ // Utility functions
+
+ /// getAsCString - Return the specified array as a C compatible string, only
+ /// if the predicate isString() is true.
+ ///
+ std::string getAsCString(const ConstantArray *CVA) {
+ assert(CVA->isString() && "Array is not string compatible!");
+
+ std::string Result = "\"";
+ for (unsigned i = 0; i != CVA->getNumOperands(); ++i) {
+ unsigned char C = cast<ConstantInt>(CVA->getOperand(i))->getRawValue();
+
+ if (C == '"') {
+ Result += "\\\"";
+ } else if (C == '\\') {
+ Result += "\\\\";
+ } else if (isprint(C)) {
+ Result += C;
+ } else {
+ Result += '\\'; // print all other chars as octal value
+ // Convert C to octal representation
+ Result += ((C >> 6) & 7) + '0';
+ Result += ((C >> 3) & 7) + '0';
+ Result += ((C >> 0) & 7) + '0';
+ }
+ }
+ Result += "\"";
+
+ return Result;
+ }
+
+ inline bool ArrayTypeIsString(const ArrayType* arrayType) {
+ return (arrayType->getElementType() == Type::UByteTy ||
+ arrayType->getElementType() == Type::SByteTy);
+ }
+
+ inline const std::string
+ TypeToDataDirective(const Type* type) {
+ switch(type->getPrimitiveID())
+ {
+ case Type::BoolTyID: case Type::UByteTyID: case Type::SByteTyID:
+ return ".byte";
+ case Type::UShortTyID: case Type::ShortTyID:
+ return ".half";
+ case Type::UIntTyID: case Type::IntTyID:
+ return ".word";
+ case Type::ULongTyID: case Type::LongTyID: case Type::PointerTyID:
+ return ".xword";
+ case Type::FloatTyID:
+ return ".word";
+ case Type::DoubleTyID:
+ return ".xword";
+ case Type::ArrayTyID:
+ if (ArrayTypeIsString((ArrayType*) type))
+ return ".ascii";
+ else
+ return "<InvaliDataTypeForPrinting>";
+ default:
+ return "<InvaliDataTypeForPrinting>";
+ }
+ }
+
+ /// Get the size of the constant for the given target.
+ /// If this is an unsized array, return 0.
+ ///
+ inline unsigned int
+ ConstantToSize(const Constant* CV, const TargetMachine& target) {
+ if (const ConstantArray* CVA = dyn_cast<ConstantArray>(CV)) {
+ const ArrayType *aty = cast<ArrayType>(CVA->getType());
+ if (ArrayTypeIsString(aty))
+ return 1 + CVA->getNumOperands();
+ }
+
+ return target.findOptimalStorageSize(CV->getType());
+ }
+
+ /// Align data larger than one L1 cache line on L1 cache line boundaries.
+ /// Align all smaller data on the next higher 2^x boundary (4, 8, ...).
+ ///
+ inline unsigned int
+ SizeToAlignment(unsigned int size, const TargetMachine& target) {
+ unsigned short cacheLineSize = target.getCacheInfo().getCacheLineSize(1);
+ if (size > (unsigned) cacheLineSize / 2)
+ return cacheLineSize;
+ else
+ for (unsigned sz=1; /*no condition*/; sz *= 2)
+ if (sz >= size)
+ return sz;
+ }
+
+ /// Get the size of the type and then use SizeToAlignment.
+ ///
+ inline unsigned int
+ TypeToAlignment(const Type* type, const TargetMachine& target) {
+ return SizeToAlignment(target.findOptimalStorageSize(type), target);
+ }
+
+ /// Get the size of the constant and then use SizeToAlignment.
+ /// Handles strings as a special case;
+ inline unsigned int
+ ConstantToAlignment(const Constant* CV, const TargetMachine& target) {
+ if (const ConstantArray* CVA = dyn_cast<ConstantArray>(CV))
+ if (ArrayTypeIsString(cast<ArrayType>(CVA->getType())))
+ return SizeToAlignment(1 + CVA->getNumOperands(), target);
+
+ return TypeToAlignment(CV->getType(), target);
+ }
+
+} // End anonymous namespace
+
+
+
+//===---------------------------------------------------------------------===//
+// Code abstracted away from the AsmPrinter
+//===---------------------------------------------------------------------===//
+
+namespace {
+ class AsmPrinter {
+ // Mangle symbol names appropriately
+ Mangler *Mang;
+
+ public:
+ std::ostream &toAsm;
+ const TargetMachine &Target;
+
+ enum Sections {
+ Unknown,
+ Text,
+ ReadOnlyData,
+ InitRWData,
+ ZeroInitRWData,
+ } CurSection;
+
+ AsmPrinter(std::ostream &os, const TargetMachine &T)
+ : /* idTable(0), */ toAsm(os), Target(T), CurSection(Unknown) {}
+
+ ~AsmPrinter() {
+ delete Mang;
+ }
+
+ // (start|end)(Module|Function) - Callback methods invoked by subclasses
+ void startModule(Module &M) {
+ Mang = new Mangler(M);
+ }
+
+ void PrintZeroBytesToPad(int numBytes) {
+ //
+ // Always use single unsigned bytes for padding. We don't know upon
+ // what data size the beginning address is aligned, so using anything
+ // other than a byte may cause alignment errors in the assembler.
+ //
+ while (numBytes--)
+ printSingleConstantValue(Constant::getNullValue(Type::UByteTy));
+ }
+
+ /// Print a single constant value.
+ ///
+ void printSingleConstantValue(const Constant* CV);
+
+ /// Print a constant value or values (it may be an aggregate).
+ /// Uses printSingleConstantValue() to print each individual value.
+ ///
+ void printConstantValueOnly(const Constant* CV, int numPadBytesAfter = 0);
+
+ // Print a constant (which may be an aggregate) prefixed by all the
+ // appropriate directives. Uses printConstantValueOnly() to print the
+ // value or values.
+ void printConstant(const Constant* CV, std::string valID = "") {
+ if (valID.length() == 0)
+ valID = getID(CV);
+
+ toAsm << "\t.align\t" << ConstantToAlignment(CV, Target) << "\n";
+
+ // Print .size and .type only if it is not a string.
+ if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV))
+ if (CVA->isString()) {
+ // print it as a string and return
+ toAsm << valID << ":\n";
+ toAsm << "\t" << ".ascii" << "\t" << getAsCString(CVA) << "\n";
+ return;
+ }
+
+ toAsm << "\t.type" << "\t" << valID << ",#object\n";
+
+ unsigned int constSize = ConstantToSize(CV, Target);
+ if (constSize)
+ toAsm << "\t.size" << "\t" << valID << "," << constSize << "\n";
+
+ toAsm << valID << ":\n";
+
+ printConstantValueOnly(CV);
+ }
+
+ // enterSection - Use this method to enter a different section of the output
+ // executable. This is used to only output necessary section transitions.
+ //
+ void enterSection(enum Sections S) {
+ if (S == CurSection) return; // Only switch section if necessary
+ CurSection = S;
+
+ toAsm << "\n\t.section ";
+ switch (S)
+ {
+ default: assert(0 && "Bad section name!");
+ case Text: toAsm << "\".text\""; break;
+ case ReadOnlyData: toAsm << "\".rodata\",#alloc"; break;
+ case InitRWData: toAsm << "\".data\",#alloc,#write"; break;
+ case ZeroInitRWData: toAsm << "\".bss\",#alloc,#write"; break;
+ }
+ toAsm << "\n";
+ }
+
+ // getID Wrappers - Ensure consistent usage
+ // Symbol names in SparcV9 assembly language have these rules:
+ // (a) Must match { letter | _ | . | $ } { letter | _ | . | $ | digit }*
+ // (b) A name beginning in "." is treated as a local name.
+ std::string getID(const Function *F) {
+ return Mang->getValueName(F);
+ }
+ std::string getID(const BasicBlock *BB) {
+ return ".L_" + getID(BB->getParent()) + "_" + Mang->getValueName(BB);
+ }
+ std::string getID(const GlobalVariable *GV) {
+ return Mang->getValueName(GV);
+ }
+ std::string getID(const Constant *CV) {
+ return ".C_" + Mang->getValueName(CV);
+ }
+ std::string getID(const GlobalValue *GV) {
+ if (const GlobalVariable *V = dyn_cast<GlobalVariable>(GV))
+ return getID(V);
+ else if (const Function *F = dyn_cast<Function>(GV))
+ return getID(F);
+ assert(0 && "Unexpected type of GlobalValue!");
+ return "";
+ }
+
+ // Combines expressions
+ inline std::string ConstantArithExprToString(const ConstantExpr* CE,
+ const TargetMachine &TM,
+ const std::string &op) {
+ return "(" + valToExprString(CE->getOperand(0), TM) + op
+ + valToExprString(CE->getOperand(1), TM) + ")";
+ }
+
+ /// ConstantExprToString() - Convert a ConstantExpr to an asm expression
+ /// and return this as a string.
+ ///
+ std::string ConstantExprToString(const ConstantExpr* CE,
+ const TargetMachine& target);
+
+ /// valToExprString - Helper function for ConstantExprToString().
+ /// Appends result to argument string S.
+ ///
+ std::string valToExprString(const Value* V, const TargetMachine& target);
+ };
+} // End anonymous namespace
+
+
+/// Print a single constant value.
+///
+void AsmPrinter::printSingleConstantValue(const Constant* CV) {
+ assert(CV->getType() != Type::VoidTy &&
+ CV->getType() != Type::TypeTy &&
+ CV->getType() != Type::LabelTy &&
+ "Unexpected type for Constant");
+
+ assert((!isa<ConstantArray>(CV) && ! isa<ConstantStruct>(CV))
+ && "Aggregate types should be handled outside this function");
+
+ toAsm << "\t" << TypeToDataDirective(CV->getType()) << "\t";
+
+ if (const ConstantPointerRef* CPR = dyn_cast<ConstantPointerRef>(CV)) {
+ // This is a constant address for a global variable or method.
+ // Use the name of the variable or method as the address value.
+ assert(isa<GlobalValue>(CPR->getValue()) && "Unexpected non-global");
+ toAsm << getID(CPR->getValue()) << "\n";
+ } else if (isa<ConstantPointerNull>(CV)) {
+ // Null pointer value
+ toAsm << "0\n";
+ } else if (const ConstantExpr* CE = dyn_cast<ConstantExpr>(CV)) {
+ // Constant expression built from operators, constants, and symbolic addrs
+ toAsm << ConstantExprToString(CE, Target) << "\n";
+ } else if (CV->getType()->isPrimitiveType()) {
+ // Check primitive types last
+ if (CV->getType()->isFloatingPoint()) {
+ // FP Constants are printed as integer constants to avoid losing
+ // precision...
+ double Val = cast<ConstantFP>(CV)->getValue();
+ if (CV->getType() == Type::FloatTy) {
+ float FVal = (float)Val;
+ char *ProxyPtr = (char*)&FVal; // Abide by C TBAA rules
+ toAsm << *(unsigned int*)ProxyPtr;
+ } else if (CV->getType() == Type::DoubleTy) {
+ char *ProxyPtr = (char*)&Val; // Abide by C TBAA rules
+ toAsm << *(uint64_t*)ProxyPtr;
+ } else {
+ assert(0 && "Unknown floating point type!");
+ }
+
+ toAsm << "\t! " << CV->getType()->getDescription()
+ << " value: " << Val << "\n";
+ } else if (const ConstantBool *CB = dyn_cast<ConstantBool>(CV)) {
+ toAsm << (int)CB->getValue() << "\n";
+ } else {
+ WriteAsOperand(toAsm, CV, false, false) << "\n";
+ }
+ } else {
+ assert(0 && "Unknown elementary type for constant");
+ }
+}
+
+/// Print a constant value or values (it may be an aggregate).
+/// Uses printSingleConstantValue() to print each individual value.
+///
+void AsmPrinter::printConstantValueOnly(const Constant* CV,
+ int numPadBytesAfter) {
+ if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV)) {
+ if (CVA->isString()) {
+ // print the string alone and return
+ toAsm << "\t" << ".ascii" << "\t" << getAsCString(CVA) << "\n";
+ } else {
+ // Not a string. Print the values in successive locations
+ const std::vector<Use> &constValues = CVA->getValues();
+ for (unsigned i=0; i < constValues.size(); i++)
+ printConstantValueOnly(cast<Constant>(constValues[i].get()));
+ }
+ } else if (const ConstantStruct *CVS = dyn_cast<ConstantStruct>(CV)) {
+ // Print the fields in successive locations. Pad to align if needed!
+ const StructLayout *cvsLayout =
+ Target.getTargetData().getStructLayout(CVS->getType());
+ const std::vector<Use>& constValues = CVS->getValues();
+ unsigned sizeSoFar = 0;
+ for (unsigned i=0, N = constValues.size(); i < N; i++) {
+ const Constant* field = cast<Constant>(constValues[i].get());
+
+ // Check if padding is needed and insert one or more 0s.
+ unsigned fieldSize =
+ Target.getTargetData().getTypeSize(field->getType());
+ int padSize = ((i == N-1? cvsLayout->StructSize
+ : cvsLayout->MemberOffsets[i+1])
+ - cvsLayout->MemberOffsets[i]) - fieldSize;
+ sizeSoFar += (fieldSize + padSize);
+
+ // Now print the actual field value
+ printConstantValueOnly(field, padSize);
+ }
+ assert(sizeSoFar == cvsLayout->StructSize &&
+ "Layout of constant struct may be incorrect!");
+ } else if (isa<ConstantAggregateZero>(CV)) {
+ PrintZeroBytesToPad(Target.getTargetData().getTypeSize(CV->getType()));
+ } else
+ printSingleConstantValue(CV);
+
+ if (numPadBytesAfter)
+ PrintZeroBytesToPad(numPadBytesAfter);
+}
+
+/// ConstantExprToString() - Convert a ConstantExpr to an asm expression
+/// and return this as a string.
+///
+std::string AsmPrinter::ConstantExprToString(const ConstantExpr* CE,
+ const TargetMachine& target) {
+ std::string S;
+ switch(CE->getOpcode()) {
+ case Instruction::GetElementPtr:
+ { // generate a symbolic expression for the byte address
+ const Value* ptrVal = CE->getOperand(0);
+ std::vector<Value*> idxVec(CE->op_begin()+1, CE->op_end());
+ const TargetData &TD = target.getTargetData();
+ S += "(" + valToExprString(ptrVal, target) + ") + ("
+ + utostr(TD.getIndexedOffset(ptrVal->getType(),idxVec)) + ")";
+ break;
+ }
+
+ case Instruction::Cast:
+ // Support only non-converting casts for now, i.e., a no-op.
+ // This assertion is not a complete check.
+ assert(target.getTargetData().getTypeSize(CE->getType()) ==
+ target.getTargetData().getTypeSize(CE->getOperand(0)->getType()));
+ S += "(" + valToExprString(CE->getOperand(0), target) + ")";
+ break;
+
+ case Instruction::Add:
+ S += ConstantArithExprToString(CE, target, ") + (");
+ break;
+
+ case Instruction::Sub:
+ S += ConstantArithExprToString(CE, target, ") - (");
+ break;
+
+ case Instruction::Mul:
+ S += ConstantArithExprToString(CE, target, ") * (");
+ break;
+
+ case Instruction::Div:
+ S += ConstantArithExprToString(CE, target, ") / (");
+ break;
+
+ case Instruction::Rem:
+ S += ConstantArithExprToString(CE, target, ") % (");
+ break;
+
+ case Instruction::And:
+ // Logical && for booleans; bitwise & otherwise
+ S += ConstantArithExprToString(CE, target,
+ ((CE->getType() == Type::BoolTy)? ") && (" : ") & ("));
+ break;
+
+ case Instruction::Or:
+ // Logical || for booleans; bitwise | otherwise
+ S += ConstantArithExprToString(CE, target,
+ ((CE->getType() == Type::BoolTy)? ") || (" : ") | ("));
+ break;
+
+ case Instruction::Xor:
+ // Bitwise ^ for all types
+ S += ConstantArithExprToString(CE, target, ") ^ (");
+ break;
+
+ default:
+ assert(0 && "Unsupported operator in ConstantExprToString()");
+ break;
+ }
+
+ return S;
+}
+
+/// valToExprString - Helper function for ConstantExprToString().
+/// Appends result to argument string S.
+///
+std::string AsmPrinter::valToExprString(const Value* V,
+ const TargetMachine& target) {
+ std::string S;
+ bool failed = false;
+ if (const Constant* CV = dyn_cast<Constant>(V)) { // symbolic or known
+ if (const ConstantBool *CB = dyn_cast<ConstantBool>(CV))
+ S += std::string(CB == ConstantBool::True ? "1" : "0");
+ else if (const ConstantSInt *CI = dyn_cast<ConstantSInt>(CV))
+ S += itostr(CI->getValue());
+ else if (const ConstantUInt *CI = dyn_cast<ConstantUInt>(CV))
+ S += utostr(CI->getValue());
+ else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV))
+ S += ftostr(CFP->getValue());
+ else if (isa<ConstantPointerNull>(CV))
+ S += "0";
+ else if (const ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(CV))
+ S += valToExprString(CPR->getValue(), target);
+ else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV))
+ S += ConstantExprToString(CE, target);
+ else
+ failed = true;
+ } else if (const GlobalValue* GV = dyn_cast<GlobalValue>(V)) {
+ S += getID(GV);
+ } else
+ failed = true;
+
+ if (failed) {
+ assert(0 && "Cannot convert value to string");
+ S += "<illegal-value>";
+ }
+ return S;
+}
+
+
+//===----------------------------------------------------------------------===//
+// SparcV9AsmPrinter Code
+//===----------------------------------------------------------------------===//
+
+namespace {
+
+ struct SparcV9AsmPrinter : public FunctionPass, public AsmPrinter {
+ inline SparcV9AsmPrinter(std::ostream &os, const TargetMachine &t)
+ : AsmPrinter(os, t) {}
+
+ const Function *currFunction;
+
+ const char *getPassName() const {
+ return "Output SparcV9 Assembly for Functions";
+ }
+
+ virtual bool doInitialization(Module &M) {
+ startModule(M);
+ return false;
+ }
+
+ virtual bool runOnFunction(Function &F) {
+ currFunction = &F;
+ emitFunction(F);
+ return false;
+ }
+
+ virtual bool doFinalization(Module &M) {
+ emitGlobals(M);
+ return false;
+ }
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.setPreservesAll();
+ }
+
+ void emitFunction(const Function &F);
+ private :
+ void emitBasicBlock(const MachineBasicBlock &MBB);
+ void emitMachineInst(const MachineInstr *MI);
+
+ unsigned int printOperands(const MachineInstr *MI, unsigned int opNum);
+ void printOneOperand(const MachineOperand &Op, MachineOpCode opCode);
+
+ bool OpIsBranchTargetLabel(const MachineInstr *MI, unsigned int opNum);
+ bool OpIsMemoryAddressBase(const MachineInstr *MI, unsigned int opNum);
+
+ unsigned getOperandMask(unsigned Opcode) {
+ switch (Opcode) {
+ case V9::SUBccr:
+ case V9::SUBcci: return 1 << 3; // Remove CC argument
+ default: return 0; // By default, don't hack operands...
+ }
+ }
+
+ void emitGlobals(const Module &M);
+ void printGlobalVariable(const GlobalVariable *GV);
+ };
+
+} // End anonymous namespace
+
+inline bool
+SparcV9AsmPrinter::OpIsBranchTargetLabel(const MachineInstr *MI,
+ unsigned int opNum) {
+ switch (MI->getOpcode()) {
+ case V9::JMPLCALLr:
+ case V9::JMPLCALLi:
+ case V9::JMPLRETr:
+ case V9::JMPLRETi:
+ return (opNum == 0);
+ default:
+ return false;
+ }
+}
+
+inline bool
+SparcV9AsmPrinter::OpIsMemoryAddressBase(const MachineInstr *MI,
+ unsigned int opNum) {
+ if (Target.getInstrInfo().isLoad(MI->getOpcode()))
+ return (opNum == 0);
+ else if (Target.getInstrInfo().isStore(MI->getOpcode()))
+ return (opNum == 1);
+ else
+ return false;
+}
+
+
+#define PrintOp1PlusOp2(mop1, mop2, opCode) \
+ printOneOperand(mop1, opCode); \
+ toAsm << "+"; \
+ printOneOperand(mop2, opCode);
+
+unsigned int
+SparcV9AsmPrinter::printOperands(const MachineInstr *MI,
+ unsigned int opNum)
+{
+ const MachineOperand& mop = MI->getOperand(opNum);
+
+ if (OpIsBranchTargetLabel(MI, opNum)) {
+ PrintOp1PlusOp2(mop, MI->getOperand(opNum+1), MI->getOpcode());
+ return 2;
+ } else if (OpIsMemoryAddressBase(MI, opNum)) {
+ toAsm << "[";
+ PrintOp1PlusOp2(mop, MI->getOperand(opNum+1), MI->getOpcode());
+ toAsm << "]";
+ return 2;
+ } else {
+ printOneOperand(mop, MI->getOpcode());
+ return 1;
+ }
+}
+
+void
+SparcV9AsmPrinter::printOneOperand(const MachineOperand &mop,
+ MachineOpCode opCode)
+{
+ bool needBitsFlag = true;
+
+ if (mop.isHiBits32())
+ toAsm << "%lm(";
+ else if (mop.isLoBits32())
+ toAsm << "%lo(";
+ else if (mop.isHiBits64())
+ toAsm << "%hh(";
+ else if (mop.isLoBits64())
+ toAsm << "%hm(";
+ else
+ needBitsFlag = false;
+
+ switch (mop.getType())
+ {
+ case MachineOperand::MO_VirtualRegister:
+ case MachineOperand::MO_CCRegister:
+ case MachineOperand::MO_MachineRegister:
+ {
+ int regNum = (int)mop.getReg();
+
+ if (regNum == Target.getRegInfo().getInvalidRegNum()) {
+ // better to print code with NULL registers than to die
+ toAsm << "<NULL VALUE>";
+ } else {
+ toAsm << "%" << Target.getRegInfo().getUnifiedRegName(regNum);
+ }
+ break;
+ }
+
+ case MachineOperand::MO_ConstantPoolIndex:
+ {
+ toAsm << ".CPI_" << currFunction->getName()
+ << "_" << mop.getConstantPoolIndex();
+ break;
+ }
+
+ case MachineOperand::MO_PCRelativeDisp:
+ {
+ const Value *Val = mop.getVRegValue();
+ assert(Val && "\tNULL Value in SparcV9AsmPrinter");
+
+ if (const BasicBlock *BB = dyn_cast<BasicBlock>(Val))
+ toAsm << getID(BB);
+ else if (const Function *M = dyn_cast<Function>(Val))
+ toAsm << getID(M);
+ else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(Val))
+ toAsm << getID(GV);
+ else if (const Constant *CV = dyn_cast<Constant>(Val))
+ toAsm << getID(CV);
+ else
+ assert(0 && "Unrecognized value in SparcV9AsmPrinter");
+ break;
+ }
+
+ case MachineOperand::MO_SignExtendedImmed:
+ toAsm << mop.getImmedValue();
+ break;
+
+ case MachineOperand::MO_UnextendedImmed:
+ toAsm << (uint64_t) mop.getImmedValue();
+ break;
+
+ default:
+ toAsm << mop; // use dump field
+ break;
+ }
+
+ if (needBitsFlag)
+ toAsm << ")";
+}
+
+void SparcV9AsmPrinter::emitMachineInst(const MachineInstr *MI) {
+ unsigned Opcode = MI->getOpcode();
+
+ if (Target.getInstrInfo().isDummyPhiInstr(Opcode))
+ return; // IGNORE PHI NODES
+
+ toAsm << "\t" << Target.getInstrInfo().getName(Opcode) << "\t";
+
+ unsigned Mask = getOperandMask(Opcode);
+
+ bool NeedComma = false;
+ unsigned N = 1;
+ for (unsigned OpNum = 0; OpNum < MI->getNumOperands(); OpNum += N)
+ if (! ((1 << OpNum) & Mask)) { // Ignore this operand?
+ if (NeedComma) toAsm << ", "; // Handle comma outputting
+ NeedComma = true;
+ N = printOperands(MI, OpNum);
+ } else
+ N = 1;
+
+ toAsm << "\n";
+ ++EmittedInsts;
+}
+
+void SparcV9AsmPrinter::emitBasicBlock(const MachineBasicBlock &MBB) {
+ // Emit a label for the basic block
+ toAsm << getID(MBB.getBasicBlock()) << ":\n";
+
+ // Loop over all of the instructions in the basic block...
+ for (MachineBasicBlock::const_iterator MII = MBB.begin(), MIE = MBB.end();
+ MII != MIE; ++MII)
+ emitMachineInst(MII);
+ toAsm << "\n"; // Separate BB's with newlines
+}
+
+void SparcV9AsmPrinter::emitFunction(const Function &F) {
+ std::string methName = getID(&F);
+ toAsm << "!****** Outputing Function: " << methName << " ******\n";
+
+ // Emit constant pool for this function
+ const MachineConstantPool *MCP = MachineFunction::get(&F).getConstantPool();
+ const std::vector<Constant*> &CP = MCP->getConstants();
+
+ enterSection(AsmPrinter::ReadOnlyData);
+ for (unsigned i = 0, e = CP.size(); i != e; ++i) {
+ std::string cpiName = ".CPI_" + F.getName() + "_" + utostr(i);
+ printConstant(CP[i], cpiName);
+ }
+
+ enterSection(AsmPrinter::Text);
+ toAsm << "\t.align\t4\n\t.global\t" << methName << "\n";
+ //toAsm << "\t.type\t" << methName << ",#function\n";
+ toAsm << "\t.type\t" << methName << ", 2\n";
+ toAsm << methName << ":\n";
+
+ // Output code for all of the basic blocks in the function...
+ MachineFunction &MF = MachineFunction::get(&F);
+ for (MachineFunction::const_iterator I = MF.begin(), E = MF.end(); I != E;++I)
+ emitBasicBlock(*I);
+
+ // Output a .size directive so the debugger knows the extents of the function
+ toAsm << ".EndOf_" << methName << ":\n\t.size "
+ << methName << ", .EndOf_"
+ << methName << "-" << methName << "\n";
+
+ // Put some spaces between the functions
+ toAsm << "\n\n";
+}
+
+void SparcV9AsmPrinter::printGlobalVariable(const GlobalVariable* GV) {
+ if (GV->hasExternalLinkage())
+ toAsm << "\t.global\t" << getID(GV) << "\n";
+
+ if (GV->hasInitializer() && ! GV->getInitializer()->isNullValue()) {
+ printConstant(GV->getInitializer(), getID(GV));
+ } else {
+ toAsm << "\t.align\t" << TypeToAlignment(GV->getType()->getElementType(),
+ Target) << "\n";
+ toAsm << "\t.type\t" << getID(GV) << ",#object\n";
+ toAsm << "\t.reserve\t" << getID(GV) << ","
+ << Target.findOptimalStorageSize(GV->getType()->getElementType())
+ << "\n";
+ }
+}
+
+void SparcV9AsmPrinter::emitGlobals(const Module &M) {
+ // Output global variables...
+ for (Module::const_giterator GI = M.gbegin(), GE = M.gend(); GI != GE; ++GI)
+ if (! GI->isExternal()) {
+ assert(GI->hasInitializer());
+ if (GI->isConstant())
+ enterSection(AsmPrinter::ReadOnlyData); // read-only, initialized data
+ else if (GI->getInitializer()->isNullValue())
+ enterSection(AsmPrinter::ZeroInitRWData); // read-write zero data
+ else
+ enterSection(AsmPrinter::InitRWData); // read-write non-zero data
+
+ printGlobalVariable(GI);
+ }
+
+ toAsm << "\n";
+}
+
+FunctionPass *llvm::createAsmPrinterPass(std::ostream &Out,
+ const TargetMachine &TM) {
+ return new SparcV9AsmPrinter(Out, TM);
+}