-//===-- SparcV8AsmPrinter.cpp - SparcV8 LLVM assembly writer --------------===//
+//===-- SparcAsmPrinter.cpp - Sparc LLVM assembly writer ------------------===//
//
// The LLVM Compiler Infrastructure
//
//===----------------------------------------------------------------------===//
//
// This file contains a printer that converts from our internal representation
-// of machine-dependent LLVM code to GAS-format Sparc V8 assembly language.
+// of machine-dependent LLVM code to GAS-format SPARC assembly language.
//
//===----------------------------------------------------------------------===//
-#include "SparcV8.h"
-#include "SparcV8InstrInfo.h"
+#define DEBUG_TYPE "asm-printer"
+#include "Sparc.h"
+#include "SparcInstrInfo.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Module.h"
-#include "llvm/Assembly/Writer.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Support/Mangler.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/MathExtras.h"
#include <cctype>
-#include <iostream>
using namespace llvm;
-namespace {
- Statistic<> EmittedInsts("asm-printer", "Number of machine instrs printed");
+STATISTIC(EmittedInsts, "Number of machine instrs printed");
- struct SparcV8AsmPrinter : public AsmPrinter {
- SparcV8AsmPrinter(std::ostream &O, TargetMachine &TM) : AsmPrinter(O, TM) {
- Data16bitsDirective = "\t.half\t";
- Data32bitsDirective = "\t.word\t";
- Data64bitsDirective = 0; // .xword is only supported by V9.
- ZeroDirective = 0; // no .zero or .space!
- CommentString = "!";
- ConstantPoolSection = "\t.section \".rodata\",#alloc\n";
+namespace {
+ struct VISIBILITY_HIDDEN SparcAsmPrinter : public AsmPrinter {
+ SparcAsmPrinter(std::ostream &O, TargetMachine &TM, const TargetAsmInfo *T)
+ : AsmPrinter(O, TM, T) {
}
/// We name each basic block in a Function with a unique number, so
ValueMapTy NumberForBB;
virtual const char *getPassName() const {
- return "SparcV8 Assembly Printer";
+ return "Sparc Assembly Printer";
}
void printOperand(const MachineInstr *MI, int opNum);
- void printMemOperand(const MachineInstr *MI, int opNum);
- void printV8CCOperand(const MachineInstr *MI, int opNum);
+ void printMemOperand(const MachineInstr *MI, int opNum,
+ const char *Modifier = 0);
+ void printCCOperand(const MachineInstr *MI, int opNum);
bool printInstruction(const MachineInstr *MI); // autogenerated.
bool runOnMachineFunction(MachineFunction &F);
};
} // end of anonymous namespace
-#include "SparcV8GenAsmWriter.inc"
+#include "SparcGenAsmWriter.inc"
-/// createSparcV8CodePrinterPass - Returns a pass that prints the SparcV8
+/// createSparcCodePrinterPass - Returns a pass that prints the SPARC
/// assembly code for a MachineFunction to the given output stream,
/// using the given target machine description. This should work
/// regardless of whether the function is in SSA form.
///
-FunctionPass *llvm::createSparcV8CodePrinterPass (std::ostream &o,
- TargetMachine &tm) {
- return new SparcV8AsmPrinter(o, tm);
+FunctionPass *llvm::createSparcCodePrinterPass(std::ostream &o,
+ TargetMachine &tm) {
+ return new SparcAsmPrinter(o, tm, tm.getTargetAsmInfo());
}
/// runOnMachineFunction - This uses the printMachineInstruction()
/// method to print assembly for each instruction.
///
-bool SparcV8AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
+bool SparcAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
SetupMachineFunction(MF);
// Print out constants referenced by the function
// What's my mangled name?
CurrentFnName = Mang->getValueName(MF.getFunction());
- // Print out labels for the function.
- O << "\t.text\n";
- O << "\t.align 16\n";
+ // Print out the label for the function.
+ const Function *F = MF.getFunction();
+ SwitchToTextSection(getSectionForFunction(*F).c_str(), F);
+ EmitAlignment(4, F);
O << "\t.globl\t" << CurrentFnName << "\n";
O << "\t.type\t" << CurrentFnName << ", #function\n";
O << CurrentFnName << ":\n";
// Number each basic block so that we can consistently refer to them
// in PC-relative references.
+ // FIXME: Why not use the MBB numbers?
NumberForBB.clear();
for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
I != E; ++I) {
for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
I != E; ++I) {
// Print a label for the basic block.
- if (I != MF.begin())
- O << ".LBB" << Mang->getValueName(MF.getFunction ())
- << "_" << I->getNumber () << ":\t! "
- << I->getBasicBlock ()->getName () << "\n";
+ if (I != MF.begin()) {
+ printBasicBlockLabel(I, true);
+ O << '\n';
+ }
for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
II != E; ++II) {
// Print the assembly for the instruction.
return false;
}
-void SparcV8AsmPrinter::printOperand(const MachineInstr *MI, int opNum) {
+void SparcAsmPrinter::printOperand(const MachineInstr *MI, int opNum) {
const MachineOperand &MO = MI->getOperand (opNum);
const MRegisterInfo &RI = *TM.getRegisterInfo();
bool CloseParen = false;
- if (MI->getOpcode() == V8::SETHIi && !MO.isRegister() && !MO.isImmediate()) {
+ if (MI->getOpcode() == SP::SETHIi && !MO.isRegister() && !MO.isImmediate()) {
O << "%hi(";
CloseParen = true;
- } else if ((MI->getOpcode() == V8::ORri || MI->getOpcode() == V8::ADDri)
+ } else if ((MI->getOpcode() == SP::ORri || MI->getOpcode() == SP::ADDri)
&& !MO.isRegister() && !MO.isImmediate()) {
O << "%lo(";
CloseParen = true;
}
switch (MO.getType()) {
- case MachineOperand::MO_VirtualRegister:
- if (Value *V = MO.getVRegValueOrNull()) {
- O << "<" << V->getName() << ">";
- break;
- }
- // FALLTHROUGH
- case MachineOperand::MO_MachineRegister:
+ case MachineOperand::MO_Register:
if (MRegisterInfo::isPhysicalRegister(MO.getReg()))
O << "%" << LowercaseString (RI.get(MO.getReg()).Name);
else
O << "%reg" << MO.getReg();
break;
- case MachineOperand::MO_SignExtendedImmed:
- case MachineOperand::MO_UnextendedImmed:
+ case MachineOperand::MO_Immediate:
O << (int)MO.getImmedValue();
break;
- case MachineOperand::MO_MachineBasicBlock: {
- MachineBasicBlock *MBBOp = MO.getMachineBasicBlock();
- O << ".LBB" << Mang->getValueName(MBBOp->getParent()->getFunction())
- << "_" << MBBOp->getNumber () << "\t! "
- << MBBOp->getBasicBlock ()->getName ();
- return;
- }
- case MachineOperand::MO_PCRelativeDisp:
- std::cerr << "Shouldn't use addPCDisp() when building SparcV8 MachineInstrs";
- abort ();
+ case MachineOperand::MO_MachineBasicBlock:
+ printBasicBlockLabel(MO.getMachineBasicBlock());
return;
case MachineOperand::MO_GlobalAddress:
O << Mang->getValueName(MO.getGlobal());
O << MO.getSymbolName();
break;
case MachineOperand::MO_ConstantPoolIndex:
- O << PrivateGlobalPrefix << "CPI" << getFunctionNumber() << "_"
+ O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << "_"
<< MO.getConstantPoolIndex();
break;
default:
if (CloseParen) O << ")";
}
-void SparcV8AsmPrinter::printMemOperand(const MachineInstr *MI, int opNum) {
+void SparcAsmPrinter::printMemOperand(const MachineInstr *MI, int opNum,
+ const char *Modifier) {
printOperand(MI, opNum);
- MachineOperand::MachineOperandType OpTy = MI->getOperand(opNum+1).getType();
- if ((OpTy == MachineOperand::MO_VirtualRegister ||
- OpTy == MachineOperand::MO_MachineRegister) &&
- MI->getOperand(opNum+1).getReg() == V8::G0)
+ // If this is an ADD operand, emit it like normal operands.
+ if (Modifier && !strcmp(Modifier, "arith")) {
+ O << ", ";
+ printOperand(MI, opNum+1);
+ return;
+ }
+
+ if (MI->getOperand(opNum+1).isRegister() &&
+ MI->getOperand(opNum+1).getReg() == SP::G0)
return; // don't print "+%g0"
- if ((OpTy == MachineOperand::MO_SignExtendedImmed ||
- OpTy == MachineOperand::MO_UnextendedImmed) &&
+ if (MI->getOperand(opNum+1).isImmediate() &&
MI->getOperand(opNum+1).getImmedValue() == 0)
return; // don't print "+0"
O << "+";
- if (OpTy == MachineOperand::MO_GlobalAddress ||
- OpTy == MachineOperand::MO_ConstantPoolIndex) {
+ if (MI->getOperand(opNum+1).isGlobalAddress() ||
+ MI->getOperand(opNum+1).isConstantPoolIndex()) {
O << "%lo(";
printOperand(MI, opNum+1);
O << ")";
}
}
-void SparcV8AsmPrinter::printV8CCOperand(const MachineInstr *MI, int opNum) {
+void SparcAsmPrinter::printCCOperand(const MachineInstr *MI, int opNum) {
int CC = (int)MI->getOperand(opNum).getImmedValue();
- O << SPARCCondCodeToString((V8CC::CondCodes)CC);
+ O << SPARCCondCodeToString((SPCC::CondCodes)CC);
}
-bool SparcV8AsmPrinter::doInitialization(Module &M) {
+bool SparcAsmPrinter::doInitialization(Module &M) {
Mang = new Mangler(M);
return false; // success
}
-bool SparcV8AsmPrinter::doFinalization(Module &M) {
- const TargetData &TD = TM.getTargetData();
+bool SparcAsmPrinter::doFinalization(Module &M) {
+ const TargetData *TD = TM.getTargetData();
// Print out module-level global variables here.
- for (Module::const_global_iterator I = M.global_begin(), E = M.global_end(); I != E; ++I)
+ for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
+ I != E; ++I)
if (I->hasInitializer()) { // External global require no code
+ // Check to see if this is a special global used by LLVM, if so, emit it.
+ if (EmitSpecialLLVMGlobal(I))
+ continue;
+
O << "\n\n";
std::string name = Mang->getValueName(I);
Constant *C = I->getInitializer();
- unsigned Size = TD.getTypeSize(C->getType());
- unsigned Align = TD.getTypeAlignment(C->getType());
+ unsigned Size = TD->getTypeSize(C->getType());
+ unsigned Align = TD->getPrefTypeAlignment(C->getType());
if (C->isNullValue() &&
(I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
I->hasWeakLinkage() /* FIXME: Verify correct */)) {
- SwitchSection(".data", I);
+ SwitchToDataSection(".data", I);
if (I->hasInternalLinkage())
O << "\t.local " << name << "\n";
- O << "\t.comm " << name << "," << TD.getTypeSize(C->getType())
- << "," << (unsigned)TD.getTypeAlignment(C->getType());
- O << "\t\t! ";
- WriteAsOperand(O, I, true, true, &M);
+ O << "\t.comm " << name << "," << TD->getTypeSize(C->getType())
+ << "," << Align;
O << "\n";
} else {
switch (I->getLinkage()) {
case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak.
// Nonnull linkonce -> weak
O << "\t.weak " << name << "\n";
- SwitchSection("", I);
+ SwitchToDataSection("", I);
O << "\t.section\t\".llvm.linkonce.d." << name
<< "\",\"aw\",@progbits\n";
break;
// FALL THROUGH
case GlobalValue::InternalLinkage:
if (C->isNullValue())
- SwitchSection(".bss", I);
+ SwitchToDataSection(".bss", I);
else
- SwitchSection(".data", I);
+ SwitchToDataSection(".data", I);
break;
case GlobalValue::GhostLinkage:
- std::cerr << "Should not have any unmaterialized functions!\n";
+ cerr << "Should not have any unmaterialized functions!\n";
abort();
+ case GlobalValue::DLLImportLinkage:
+ cerr << "DLLImport linkage is not supported by this target!\n";
+ abort();
+ case GlobalValue::DLLExportLinkage:
+ cerr << "DLLExport linkage is not supported by this target!\n";
+ abort();
+ default:
+ assert(0 && "Unknown linkage type!");
}
O << "\t.align " << Align << "\n";
O << "\t.type " << name << ",#object\n";
O << "\t.size " << name << "," << Size << "\n";
- O << name << ":\t\t\t\t! ";
- WriteAsOperand(O, I, true, true, &M);
- O << " = ";
- WriteAsOperand(O, C, false, false, &M);
- O << "\n";
+ O << name << ":\n";
EmitGlobalConstant(C);
}
}
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