#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Module.h"
-#include "llvm/MDNode.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/DwarfWriter.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
+#include "llvm/Target/TargetRegistry.h"
#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/Mangler.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/raw_ostream.h"
#include <cctype>
-
using namespace llvm;
STATISTIC(EmittedInsts, "Number of machine instrs printed");
namespace {
- class VISIBILITY_HIDDEN MipsAsmPrinter : public AsmPrinter {
+ class MipsAsmPrinter : public AsmPrinter {
const MipsSubtarget *Subtarget;
public:
- explicit MipsAsmPrinter(raw_ostream &O, MipsTargetMachine &TM,
- const TargetAsmInfo *T, bool V)
+ explicit MipsAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
+ const MCAsmInfo *T, bool V)
: AsmPrinter(O, TM, T, V) {
Subtarget = &TM.getSubtarget<MipsSubtarget>();
}
const char *Modifier = 0);
void printFCCOperand(const MachineInstr *MI, int opNum,
const char *Modifier = 0);
- void printModuleLevelGV(const GlobalVariable* GVar);
void printSavedRegsBitmask(MachineFunction &MF);
void printHex32(unsigned int Value);
- const char *emitCurrentABIString(void);
+ const char *emitCurrentABIString();
void emitFunctionStart(MachineFunction &MF);
void emitFunctionEnd(MachineFunction &MF);
void emitFrameDirective(MachineFunction &MF);
- bool printInstruction(const MachineInstr *MI); // autogenerated.
+ void printInstruction(const MachineInstr *MI); // autogenerated.
+ static const char *getRegisterName(unsigned RegNo);
+
bool runOnMachineFunction(MachineFunction &F);
- bool doInitialization(Module &M);
- bool doFinalization(Module &M);
+ void EmitStartOfAsmFile(Module &M);
};
} // end of anonymous namespace
#include "MipsGenAsmWriter.inc"
-/// createMipsCodePrinterPass - Returns a pass that prints the MIPS
-/// 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::createMipsCodePrinterPass(raw_ostream &o,
- MipsTargetMachine &tm,
- bool verbose) {
- return new MipsAsmPrinter(o, tm, tm.getTargetAsmInfo(), verbose);
-}
-
//===----------------------------------------------------------------------===//
//
// Mips Asm Directives
//===----------------------------------------------------------------------===//
/// Frame Directive
-void MipsAsmPrinter::
-emitFrameDirective(MachineFunction &MF)
-{
+void MipsAsmPrinter::emitFrameDirective(MachineFunction &MF) {
const TargetRegisterInfo &RI = *TM.getRegisterInfo();
unsigned stackReg = RI.getFrameRegister(MF);
unsigned stackSize = MF.getFrameInfo()->getStackSize();
- O << "\t.frame\t" << '$' << LowercaseString(RI.get(stackReg).AsmName)
+ O << "\t.frame\t" << '$' << LowercaseString(getRegisterName(stackReg))
<< ',' << stackSize << ','
- << '$' << LowercaseString(RI.get(returnReg).AsmName)
+ << '$' << LowercaseString(getRegisterName(returnReg))
<< '\n';
}
/// Emit Set directives.
-const char * MipsAsmPrinter::
-emitCurrentABIString(void)
-{
+const char *MipsAsmPrinter::emitCurrentABIString() {
switch(Subtarget->getTargetABI()) {
case MipsSubtarget::O32: return "abi32";
case MipsSubtarget::O64: return "abiO64";
}
/// Emit the directives used by GAS on the start of functions
-void MipsAsmPrinter::
-emitFunctionStart(MachineFunction &MF)
-{
+void MipsAsmPrinter::emitFunctionStart(MachineFunction &MF) {
// Print out the label for the function.
const Function *F = MF.getFunction();
- SwitchToSection(TAI->SectionForGlobal(F));
+ OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, TM));
// 2 bits aligned
EmitAlignment(MF.getAlignment(), F);
- O << "\t.globl\t" << CurrentFnName << '\n';
- O << "\t.ent\t" << CurrentFnName << '\n';
+ O << "\t.globl\t" << *CurrentFnSym << '\n';
+ O << "\t.ent\t" << *CurrentFnSym << '\n';
- printVisibility(CurrentFnName, F->getVisibility());
+ printVisibility(CurrentFnSym, F->getVisibility());
- if ((TAI->hasDotTypeDotSizeDirective()) && Subtarget->isLinux())
- O << "\t.type\t" << CurrentFnName << ", @function\n";
+ if ((MAI->hasDotTypeDotSizeDirective()) && Subtarget->isLinux())
+ O << "\t.type\t" << *CurrentFnSym << ", @function\n";
- O << CurrentFnName << ":\n";
+ O << *CurrentFnSym << ":\n";
emitFrameDirective(MF);
printSavedRegsBitmask(MF);
}
/// Emit the directives used by GAS on the end of functions
-void MipsAsmPrinter::
-emitFunctionEnd(MachineFunction &MF)
-{
+void MipsAsmPrinter::emitFunctionEnd(MachineFunction &MF) {
// There are instruction for this macros, but they must
// always be at the function end, and we can't emit and
// break with BB logic.
O << "\t.set\tmacro\n";
O << "\t.set\treorder\n";
- O << "\t.end\t" << CurrentFnName << '\n';
- if (TAI->hasDotTypeDotSizeDirective() && !Subtarget->isLinux())
- O << "\t.size\t" << CurrentFnName << ", .-" << CurrentFnName << '\n';
+ O << "\t.end\t" << *CurrentFnSym << '\n';
+ if (MAI->hasDotTypeDotSizeDirective() && !Subtarget->isLinux())
+ O << "\t.size\t" << *CurrentFnSym << ", .-" << *CurrentFnSym << '\n';
}
/// runOnMachineFunction - This uses the printMachineInstruction()
/// method to print assembly for each instruction.
-bool MipsAsmPrinter::
-runOnMachineFunction(MachineFunction &MF)
-{
- this->MF = &MF;
-
+bool MipsAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
SetupMachineFunction(MF);
// Print out constants referenced by the function
EmitConstantPool(MF.getConstantPool());
// Print out jump tables referenced by the function
- EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
+ EmitJumpTableInfo(MF);
O << "\n\n";
// Print a label for the basic block.
if (I != MF.begin()) {
- printBasicBlockLabel(I, true, true);
- O << '\n';
+ EmitBasicBlockStart(I);
}
for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
II != E; ++II) {
+ processDebugLoc(II, true);
+
// Print the assembly for the instruction.
printInstruction(II);
+
+ if (VerboseAsm)
+ EmitComments(*II);
+ O << '\n';
+
+ processDebugLoc(II, false);
++EmittedInsts;
}
}
// Print out an operand for an inline asm expression.
-bool MipsAsmPrinter::
-PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
- unsigned AsmVariant, const char *ExtraCode)
-{
+bool MipsAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
+ unsigned AsmVariant,const char *ExtraCode){
// Does this asm operand have a single letter operand modifier?
if (ExtraCode && ExtraCode[0])
return true; // Unknown modifier.
return false;
}
-void MipsAsmPrinter::
-printOperand(const MachineInstr *MI, int opNum)
-{
+void MipsAsmPrinter::printOperand(const MachineInstr *MI, int opNum) {
const MachineOperand &MO = MI->getOperand(opNum);
- const TargetRegisterInfo &RI = *TM.getRegisterInfo();
bool closeP = false;
- bool isPIC = (TM.getRelocationModel() == Reloc::PIC_);
- bool isCodeLarge = (TM.getCodeModel() == CodeModel::Large);
-
- // %hi and %lo used on mips gas to load global addresses on
- // static code. %got is used to load global addresses when
- // using PIC_. %call16 is used to load direct call targets
- // on PIC_ and small code size. %call_lo and %call_hi load
- // direct call targets on PIC_ and large code size.
- if (MI->getOpcode() == Mips::LUi && !MO.isReg() && !MO.isImm()) {
- if ((isPIC) && (isCodeLarge))
- O << "%call_hi(";
- else
- O << "%hi(";
+
+ if (MO.getTargetFlags())
closeP = true;
- } else if ((MI->getOpcode() == Mips::ADDiu) && !MO.isReg() && !MO.isImm()) {
- const MachineOperand &firstMO = MI->getOperand(opNum-1);
- if (firstMO.getReg() == Mips::GP)
- O << "%gp_rel(";
+
+ switch(MO.getTargetFlags()) {
+ case MipsII::MO_GPREL: O << "%gp_rel("; break;
+ case MipsII::MO_GOT_CALL: O << "%call16("; break;
+ case MipsII::MO_GOT:
+ if (MI->getOpcode() == Mips::LW)
+ O << "%got(";
else
O << "%lo(";
- closeP = true;
- } else if ((isPIC) && (MI->getOpcode() == Mips::LW) &&
- (!MO.isReg()) && (!MO.isImm())) {
- const MachineOperand &firstMO = MI->getOperand(opNum-1);
- const MachineOperand &lastMO = MI->getOperand(opNum+1);
- if ((firstMO.isReg()) && (lastMO.isReg())) {
- if ((firstMO.getReg() == Mips::T9) && (lastMO.getReg() == Mips::GP)
- && (!isCodeLarge))
- O << "%call16(";
- else if ((firstMO.getReg() != Mips::T9) && (lastMO.getReg() == Mips::GP))
- O << "%got(";
- else if ((firstMO.getReg() == Mips::T9) && (lastMO.getReg() != Mips::GP)
- && (isCodeLarge))
- O << "%call_lo(";
- closeP = true;
- }
+ break;
+ case MipsII::MO_ABS_HILO:
+ if (MI->getOpcode() == Mips::LUi)
+ O << "%hi(";
+ else
+ O << "%lo(";
+ break;
}
-
- switch (MO.getType())
- {
+
+ switch (MO.getType()) {
case MachineOperand::MO_Register:
- if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()))
- O << '$' << LowercaseString (RI.get(MO.getReg()).AsmName);
- else
- O << '$' << MO.getReg();
+ O << '$' << LowercaseString(getRegisterName(MO.getReg()));
break;
case MachineOperand::MO_Immediate:
break;
case MachineOperand::MO_MachineBasicBlock:
- printBasicBlockLabel(MO.getMBB());
+ O << *MO.getMBB()->getSymbol(OutContext);
return;
case MachineOperand::MO_GlobalAddress:
- {
- const GlobalValue *GV = MO.getGlobal();
- O << Mang->getValueName(GV);
- }
+ O << *GetGlobalValueSymbol(MO.getGlobal());
break;
case MachineOperand::MO_ExternalSymbol:
- O << MO.getSymbolName();
+ O << *GetExternalSymbolSymbol(MO.getSymbolName());
break;
case MachineOperand::MO_JumpTableIndex:
- O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << MO.getIndex();
+ O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
+ << '_' << MO.getIndex();
break;
case MachineOperand::MO_ConstantPoolIndex:
- O << TAI->getPrivateGlobalPrefix() << "CPI"
+ O << MAI->getPrivateGlobalPrefix() << "CPI"
<< getFunctionNumber() << "_" << MO.getIndex();
+ if (MO.getOffset())
+ O << "+" << MO.getOffset();
break;
default:
if (closeP) O << ")";
}
-void MipsAsmPrinter::
-printUnsignedImm(const MachineInstr *MI, int opNum)
-{
+void MipsAsmPrinter::printUnsignedImm(const MachineInstr *MI, int opNum) {
const MachineOperand &MO = MI->getOperand(opNum);
if (MO.getType() == MachineOperand::MO_Immediate)
O << (unsigned short int)MO.getImm();
}
void MipsAsmPrinter::
-printMemOperand(const MachineInstr *MI, int opNum, const char *Modifier)
-{
+printMemOperand(const MachineInstr *MI, int opNum, const char *Modifier) {
// when using stack locations for not load/store instructions
// print the same way as all normal 3 operand instructions.
if (Modifier && !strcmp(Modifier, "stackloc")) {
}
void MipsAsmPrinter::
-printFCCOperand(const MachineInstr *MI, int opNum, const char *Modifier)
-{
+printFCCOperand(const MachineInstr *MI, int opNum, const char *Modifier) {
const MachineOperand& MO = MI->getOperand(opNum);
O << Mips::MipsFCCToString((Mips::CondCode)MO.getImm());
}
-bool MipsAsmPrinter::
-doInitialization(Module &M)
-{
- Mang = new Mangler(M, "", TAI->getPrivateGlobalPrefix());
-
+void MipsAsmPrinter::EmitStartOfAsmFile(Module &M) {
+ // FIXME: Use SwitchSection.
+
// Tell the assembler which ABI we are using
O << "\t.section .mdebug." << emitCurrentABIString() << '\n';
// return to previous section
O << "\t.previous" << '\n';
-
- return false; // success
-}
-
-void MipsAsmPrinter::
-printModuleLevelGV(const GlobalVariable* GVar) {
- const TargetData *TD = TM.getTargetData();
-
- if (!GVar->hasInitializer())
- return; // External global require no code
-
- // Check to see if this is a special global used by LLVM, if so, emit it.
- if (EmitSpecialLLVMGlobal(GVar))
- return;
-
- O << "\n\n";
- std::string name = Mang->getValueName(GVar);
- Constant *C = GVar->getInitializer();
- if (isa<MDNode>(C) || isa<MDString>(C))
- return;
- const Type *CTy = C->getType();
- unsigned Size = TD->getTypeAllocSize(CTy);
- const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
- bool printSizeAndType = true;
-
- // A data structure or array is aligned in memory to the largest
- // alignment boundary required by any data type inside it (this matches
- // the Preferred Type Alignment). For integral types, the alignment is
- // the type size.
- unsigned Align;
- if (CTy->getTypeID() == Type::IntegerTyID ||
- CTy->getTypeID() == Type::VoidTyID) {
- assert(!(Size & (Size-1)) && "Alignment is not a power of two!");
- Align = Log2_32(Size);
- } else
- Align = TD->getPreferredTypeAlignmentShift(CTy);
-
- printVisibility(name, GVar->getVisibility());
-
- SwitchToSection(TAI->SectionForGlobal(GVar));
-
- if (C->isNullValue() && !GVar->hasSection()) {
- if (!GVar->isThreadLocal() &&
- (GVar->hasLocalLinkage() || GVar->isWeakForLinker())) {
- if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
-
- if (GVar->hasLocalLinkage())
- O << "\t.local\t" << name << '\n';
-
- O << TAI->getCOMMDirective() << name << ',' << Size;
- if (TAI->getCOMMDirectiveTakesAlignment())
- O << ',' << (1 << Align);
-
- O << '\n';
- return;
- }
- }
- switch (GVar->getLinkage()) {
- case GlobalValue::LinkOnceAnyLinkage:
- case GlobalValue::LinkOnceODRLinkage:
- case GlobalValue::CommonLinkage:
- case GlobalValue::WeakAnyLinkage:
- case GlobalValue::WeakODRLinkage:
- // FIXME: Verify correct for weak.
- // Nonnull linkonce -> weak
- O << "\t.weak " << name << '\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.
- case GlobalValue::ExternalLinkage:
- // If external or appending, declare as a global symbol
- O << TAI->getGlobalDirective() << name << '\n';
- // Fall Through
- case GlobalValue::PrivateLinkage:
- case GlobalValue::InternalLinkage:
- if (CVA && CVA->isCString())
- printSizeAndType = false;
- break;
- case GlobalValue::GhostLinkage:
- llvm_unreachable("Should not have any unmaterialized functions!");
- case GlobalValue::DLLImportLinkage:
- llvm_unreachable("DLLImport linkage is not supported by this target!");
- case GlobalValue::DLLExportLinkage:
- llvm_unreachable("DLLExport linkage is not supported by this target!");
- default:
- llvm_unreachable("Unknown linkage type!");
- }
-
- EmitAlignment(Align, GVar);
-
- if (TAI->hasDotTypeDotSizeDirective() && printSizeAndType) {
- O << "\t.type " << name << ",@object\n";
- O << "\t.size " << name << ',' << Size << '\n';
- }
-
- O << name << ":\n";
- EmitGlobalConstant(C);
-}
-
-bool MipsAsmPrinter::
-doFinalization(Module &M)
-{
- // Print out module-level global variables here.
- for (Module::const_global_iterator I = M.global_begin(),
- E = M.global_end(); I != E; ++I)
- printModuleLevelGV(I);
-
- O << '\n';
-
- return AsmPrinter::doFinalization(M);
-}
-
-namespace {
- static struct Register {
- Register() {
- MipsTargetMachine::registerAsmPrinter(createMipsCodePrinterPass);
- }
- } Registrator;
}
// Force static initialization.
-extern "C" void LLVMInitializeMipsAsmPrinter() { }
+extern "C" void LLVMInitializeMipsAsmPrinter() {
+ RegisterAsmPrinter<MipsAsmPrinter> X(TheMipsTarget);
+ RegisterAsmPrinter<MipsAsmPrinter> Y(TheMipselTarget);
+}
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