//===-- SparcV8AsmPrinter.cpp - SparcV8 LLVM assembly writer --------------===//
-//
+//
// 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 contains a printer that converts from our internal representation
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Support/Mangler.h"
-#include "Support/Statistic.h"
-#include "Support/StringExtras.h"
-#include "Support/CommandLine.h"
+#include "llvm/ADT/Statistic.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/Support/CommandLine.h"
#include <cctype>
using namespace llvm;
void emitGlobalConstant(const Constant *CV);
void printConstantPool(MachineConstantPool *MCP);
void printOperand(const MachineInstr *MI, int opNum);
- void printBaseOffsetPair (const MachineInstr *MI, int i);
+ void printBaseOffsetPair (const MachineInstr *MI, int i, bool brackets=true);
void printMachineInstruction(const MachineInstr *MI);
- bool runOnMachineFunction(MachineFunction &F);
+ bool runOnMachineFunction(MachineFunction &F);
bool doInitialization(Module &M);
bool doFinalization(Module &M);
};
// Print out the specified constant, without a storage class. Only the
// constants valid in constant expressions can occur here.
void V8Printer::emitConstantValueOnly(const Constant *CV) {
- if (CV->isNullValue())
+ if (CV->isNullValue() || isa<UndefValue> (CV))
O << "0";
else if (const ConstantBool *CB = dyn_cast<ConstantBool>(CV)) {
assert(CB == ConstantBool::True);
O << (unsigned long long)CI->getValue();
else if (const ConstantUInt *CI = dyn_cast<ConstantUInt>(CV))
O << CI->getValue();
- else if (const ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(CV))
+ else if (const GlobalValue *GV = dyn_cast<GlobalValue>(CV))
// This is a constant address for a global variable or function. Use the
// name of the variable or function as the address value.
- O << Mang->getValueName(CPR->getValue());
+ O << Mang->getValueName(GV);
else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
const TargetData &TD = TM.getTargetData();
switch(CE->getOpcode()) {
// Print a constant value or values, with the appropriate storage class as a
// prefix.
-void V8Printer::emitGlobalConstant(const Constant *CV) {
+void V8Printer::emitGlobalConstant(const Constant *CV) {
const TargetData &TD = TM.getTargetData();
- if (CV->isNullValue()) {
- O << "\t.zero\t " << TD.getTypeSize(CV->getType()) << "\n";
- return;
- } else if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV)) {
+ if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV)) {
if (CVA->isString()) {
O << "\t.ascii\t";
printAsCString(O, CVA);
O << "\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++)
- emitGlobalConstant(cast<Constant>(constValues[i].get()));
+ for (unsigned i = 0, e = CVA->getNumOperands(); i != e; i++)
+ emitGlobalConstant(CVA->getOperand(i));
}
return;
} else if (const ConstantStruct *CVS = dyn_cast<ConstantStruct>(CV)) {
// Print the fields in successive locations. Pad to align if needed!
const StructLayout *cvsLayout = TD.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());
+ for (unsigned i = 0, e = CVS->getNumOperands(); i != e; i++) {
+ const Constant* field = CVS->getOperand(i);
// Check if padding is needed and insert one or more 0s.
unsigned fieldSize = TD.getTypeSize(field->getType());
- unsigned padSize = ((i == N-1? cvsLayout->StructSize
+ unsigned padSize = ((i == e-1? cvsLayout->StructSize
: cvsLayout->MemberOffsets[i+1])
- cvsLayout->MemberOffsets[i]) - fieldSize;
sizeSoFar += fieldSize + padSize;
// Insert the field padding unless it's zero bytes...
if (padSize)
- O << "\t.zero\t " << padSize << "\n";
+ O << "\t.skip\t " << padSize << "\n";
}
assert(sizeSoFar == cvsLayout->StructSize &&
"Layout of constant struct may be incorrect!");
uint64_t UVal;
} U;
U.FVal = Val;
- O << ".quad\t" << U.UVal << "\t! double " << Val << "\n";
+ O << ".word\t0x" << std::hex << (U.UVal >> 32) << std::dec << "\t! double " << Val << "\n";
+ O << ".word\t0x" << std::hex << (U.UVal & 0xffffffffUL) << std::dec << "\t! double " << Val << "\n";
return;
}
}
+ } else if (isa<UndefValue> (CV)) {
+ unsigned size = TD.getTypeSize (CV->getType ());
+ O << "\t.skip\t " << size << "\n";
+ return;
+ } else if (isa<ConstantAggregateZero> (CV)) {
+ unsigned size = TD.getTypeSize (CV->getType ());
+ for (unsigned i = 0; i < size; ++i)
+ O << "\t.byte 0\n";
+ return;
}
const Type *type = CV->getType();
O << ".byte";
break;
case Type::UShortTyID: case Type::ShortTyID:
- O << ".word";
+ O << ".half";
break;
case Type::FloatTyID: case Type::PointerTyID:
case Type::UIntTyID: case Type::IntTyID:
- O << ".long";
+ O << ".word";
break;
case Type::DoubleTyID:
case Type::ULongTyID: case Type::LongTyID:
- O << ".quad";
+ O << ".xword";
break;
default:
assert (0 && "Can't handle printing this type of thing");
void V8Printer::printConstantPool(MachineConstantPool *MCP) {
const std::vector<Constant*> &CP = MCP->getConstants();
const TargetData &TD = TM.getTargetData();
-
+
if (CP.empty()) return;
for (unsigned i = 0, e = CP.size(); i != e; ++i) {
- O << "\t.section .rodata\n";
+ O << "\t.section \".rodata\"\n";
O << "\t.align " << (unsigned)TD.getTypeAlignment(CP[i]->getType())
<< "\n";
O << ".CPI" << CurrentFnName << "_" << i << ":\t\t\t\t\t!"
for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
I != E; ++I) {
// Print a label for the basic block.
- O << ".LBB" << NumberForBB[I->getBasicBlock()] << ":\t! "
- << I->getBasicBlock()->getName() << "\n";
+ O << ".LBB" << Mang->getValueName(MF.getFunction ())
+ << "_" << I->getNumber () << ":\t! "
+ << I->getBasicBlock ()->getName () << "\n";
for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
- II != E; ++II) {
+ II != E; ++II) {
// Print the assembly for the instruction.
O << "\t";
printMachineInstruction(II);
return false;
}
-
-std::string LowercaseString (const std::string &S) {
- std::string result (S);
- for (unsigned i = 0; i < S.length(); ++i)
- if (isupper (result[i]))
- result[i] = tolower(result[i]);
- return result;
-}
-
void V8Printer::printOperand(const MachineInstr *MI, int opNum) {
const MachineOperand &MO = MI->getOperand (opNum);
const MRegisterInfo &RI = *TM.getRegisterInfo();
if (MI->getOpcode() == V8::SETHIi && !MO.isRegister() && !MO.isImmediate()) {
O << "%hi(";
CloseParen = true;
- } else if (MI->getOpcode() ==V8::ORri &&!MO.isRegister() &&!MO.isImmediate()) {
+ } else if (MI->getOpcode() ==V8::ORri &&!MO.isRegister() &&!MO.isImmediate())
+ {
O << "%lo(";
CloseParen = true;
}
case MachineOperand::MO_UnextendedImmed:
O << (int)MO.getImmedValue();
break;
- case MachineOperand::MO_PCRelativeDisp: {
- if (isa<GlobalValue> (MO.getVRegValue ())) {
- O << Mang->getValueName (MO.getVRegValue ());
- break;
- }
- assert (isa<BasicBlock> (MO.getVRegValue ())
- && "Trying to look up something which is not a BB in the NumberForBB map");
- ValueMapTy::const_iterator i = NumberForBB.find(MO.getVRegValue());
- assert (i != NumberForBB.end()
- && "Could not find a BB in the NumberForBB map!");
- O << ".LBB" << i->second << " ! PC rel: " << MO.getVRegValue()->getName();
- 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 ();
+ return;
case MachineOperand::MO_GlobalAddress:
O << Mang->getValueName(MO.getGlobal());
break;
case MachineOperand::MO_ExternalSymbol:
O << MO.getSymbolName();
break;
+ case MachineOperand::MO_ConstantPoolIndex:
+ O << ".CPI" << CurrentFnName << "_" << MO.getConstantPoolIndex();
+ break;
default:
- O << "<unknown operand type>"; break;
+ O << "<unknown operand type>"; abort (); break;
}
if (CloseParen) O << ")";
}
static bool isLoadInstruction (const MachineInstr *MI) {
switch (MI->getOpcode ()) {
- case V8::LDSBmr:
- case V8::LDSHmr:
- case V8::LDUBmr:
- case V8::LDUHmr:
- case V8::LDmr:
- case V8::LDDmr:
+ case V8::LDSB:
+ case V8::LDSH:
+ case V8::LDUB:
+ case V8::LDUH:
+ case V8::LD:
+ case V8::LDD:
+ case V8::LDFrr:
+ case V8::LDFri:
+ case V8::LDDFrr:
+ case V8::LDDFri:
return true;
default:
return false;
static bool isStoreInstruction (const MachineInstr *MI) {
switch (MI->getOpcode ()) {
- case V8::STBrm:
- case V8::STHrm:
- case V8::STrm:
- case V8::STDrm:
+ case V8::STB:
+ case V8::STH:
+ case V8::ST:
+ case V8::STD:
+ case V8::STFrr:
+ case V8::STFri:
+ case V8::STDFrr:
+ case V8::STDFri:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool isPseudoInstruction (const MachineInstr *MI) {
+ switch (MI->getOpcode ()) {
+ case V8::PHI:
+ case V8::ADJCALLSTACKUP:
+ case V8::ADJCALLSTACKDOWN:
+ case V8::IMPLICIT_USE:
+ case V8::IMPLICIT_DEF:
return true;
default:
return false;
}
}
-void V8Printer::printBaseOffsetPair (const MachineInstr *MI, int i) {
- O << "[";
+/// printBaseOffsetPair - Print two consecutive operands of MI, starting at #i,
+/// which form a base + offset pair (which may have brackets around it, if
+/// brackets is true, or may be in the form base - constant, if offset is a
+/// negative constant).
+///
+void V8Printer::printBaseOffsetPair (const MachineInstr *MI, int i,
+ bool brackets) {
+ if (brackets) O << "[";
printOperand (MI, i);
- assert (MI->getOperand (i + 1).isImmediate()
- && "2nd half of base-offset pair must be immediate-value machine operand");
- int Val = (int) MI->getOperand (i + 1).getImmedValue ();
- if (Val != 0) {
- O << ((Val >= 0) ? " + " : " - ");
- O << ((Val >= 0) ? Val : -Val);
+ if (MI->getOperand (i + 1).isImmediate()) {
+ int Val = (int) MI->getOperand (i + 1).getImmedValue ();
+ if (Val != 0) {
+ O << ((Val >= 0) ? " + " : " - ");
+ O << ((Val >= 0) ? Val : -Val);
+ }
+ } else {
+ O << " + ";
+ printOperand (MI, i + 1);
}
- O << "]";
+ if (brackets) O << "]";
}
/// printMachineInstruction -- Print out a single SparcV8 LLVM instruction
unsigned Opcode = MI->getOpcode();
const TargetInstrInfo &TII = *TM.getInstrInfo();
const TargetInstrDescriptor &Desc = TII.get(Opcode);
+
+ // If it's a pseudo-instruction, comment it out.
+ if (isPseudoInstruction (MI))
+ O << "! ";
+
O << Desc.Name << " ";
-
+
// Printing memory instructions is a special case.
// for loads: %dest = op %base, offset --> op [%base + offset], %dest
- // for stores: op %src, %base, offset --> op %src, [%base + offset]
+ // for stores: op %base, offset, %src --> op %src, [%base + offset]
if (isLoadInstruction (MI)) {
printBaseOffsetPair (MI, 1);
O << ", ";
O << "\n";
return;
} else if (isStoreInstruction (MI)) {
- printOperand (MI, 0);
+ printOperand (MI, 2);
O << ", ";
- printBaseOffsetPair (MI, 1);
+ printBaseOffsetPair (MI, 0);
+ O << "\n";
+ return;
+ } else if (Opcode == V8::JMPLrr) {
+ printBaseOffsetPair (MI, 1, false);
+ O << ", ";
+ printOperand (MI, 0);
O << "\n";
return;
}
for (unsigned i = 0; i < MI->getNumOperands (); ++i)
if (MI->getOperand (i).isRegister () && MI->getOperand (i).isDef ())
print_order.push_back (i);
- for (unsigned i = 0, e = print_order.size (); i != e; ++i) {
+ for (unsigned i = 0, e = print_order.size (); i != e; ++i) {
printOperand (MI, print_order[i]);
if (i != (print_order.size () - 1))
O << ", ";
if (CurSection != NewSection) {
CurSection = NewSection;
if (!CurSection.empty())
- OS << "\t" << NewSection << "\n";
+ OS << "\t.section \"" << NewSection << "\"\n";
}
}
std::string CurSection;
// Print out module-level global variables here.
- for (Module::const_giterator I = M.gbegin(), E = M.gend(); 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
O << "\n\n";
std::string name = Mang->getValueName(I);
unsigned Size = TD.getTypeSize(C->getType());
unsigned Align = TD.getTypeAlignment(C->getType());
- if (C->isNullValue() &&
+ if (C->isNullValue() &&
(I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
I->hasWeakLinkage() /* FIXME: Verify correct */)) {
SwitchSection(O, CurSection, ".data");
if (I->hasInternalLinkage())
O << "\t.local " << name << "\n";
-
+
O << "\t.comm " << name << "," << TD.getTypeSize(C->getType())
<< "," << (unsigned)TD.getTypeAlignment(C->getType());
O << "\t\t! ";
// Nonnull linkonce -> weak
O << "\t.weak " << name << "\n";
SwitchSection(O, CurSection, "");
- O << "\t.section\t.llvm.linkonce.d." << name << ",\"aw\",@progbits\n";
+ O << "\t.section\t\".llvm.linkonce.d." << name << "\",\"aw\",@progbits\n";
break;
-
+
case GlobalValue::AppendingLinkage:
// FIXME: appending linkage variables should go into a section of
// their name or something. For now, just emit them as external.
else
SwitchSection(O, CurSection, ".data");
break;
+ case GlobalValue::GhostLinkage:
+ std::cerr << "Should not have any unmaterialized functions!\n";
+ abort();
}
O << "\t.align " << Align << "\n";
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