mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-06-25 00:24:26 +00:00
Separate MIPS asmprinter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68383 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
@ -1,578 +0,0 @@
|
||||
//===-- MipsAsmPrinter.cpp - Mips LLVM assembly writer --------------------===//
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file 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
|
||||
// of machine-dependent LLVM code to GAS-format MIPS assembly language.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#define DEBUG_TYPE "mips-asm-printer"
|
||||
|
||||
#include "Mips.h"
|
||||
#include "MipsSubtarget.h"
|
||||
#include "MipsInstrInfo.h"
|
||||
#include "MipsTargetMachine.h"
|
||||
#include "MipsMachineFunction.h"
|
||||
#include "llvm/Constants.h"
|
||||
#include "llvm/DerivedTypes.h"
|
||||
#include "llvm/Module.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/Target/TargetData.h"
|
||||
#include "llvm/Target/TargetMachine.h"
|
||||
#include "llvm/Target/TargetOptions.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/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 {
|
||||
const MipsSubtarget *Subtarget;
|
||||
public:
|
||||
MipsAsmPrinter(raw_ostream &O, MipsTargetMachine &TM,
|
||||
const TargetAsmInfo *T, bool F, bool V)
|
||||
: AsmPrinter(O, TM, T, F, V) {
|
||||
Subtarget = &TM.getSubtarget<MipsSubtarget>();
|
||||
}
|
||||
|
||||
virtual const char *getPassName() const {
|
||||
return "Mips Assembly Printer";
|
||||
}
|
||||
|
||||
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
|
||||
unsigned AsmVariant, const char *ExtraCode);
|
||||
void printOperand(const MachineInstr *MI, int opNum);
|
||||
void printUnsignedImm(const MachineInstr *MI, int opNum);
|
||||
void printMemOperand(const MachineInstr *MI, int opNum,
|
||||
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);
|
||||
void emitFunctionStart(MachineFunction &MF);
|
||||
void emitFunctionEnd(MachineFunction &MF);
|
||||
void emitFrameDirective(MachineFunction &MF);
|
||||
|
||||
bool printInstruction(const MachineInstr *MI); // autogenerated.
|
||||
bool runOnMachineFunction(MachineFunction &F);
|
||||
bool doInitialization(Module &M);
|
||||
bool doFinalization(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 fast, bool verbose) {
|
||||
return new MipsAsmPrinter(o, tm, tm.getTargetAsmInfo(), fast, verbose);
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Mips Asm Directives
|
||||
//
|
||||
// -- Frame directive "frame Stackpointer, Stacksize, RARegister"
|
||||
// Describe the stack frame.
|
||||
//
|
||||
// -- Mask directives "(f)mask bitmask, offset"
|
||||
// Tells the assembler which registers are saved and where.
|
||||
// bitmask - contain a little endian bitset indicating which registers are
|
||||
// saved on function prologue (e.g. with a 0x80000000 mask, the
|
||||
// assembler knows the register 31 (RA) is saved at prologue.
|
||||
// offset - the position before stack pointer subtraction indicating where
|
||||
// the first saved register on prologue is located. (e.g. with a
|
||||
//
|
||||
// Consider the following function prologue:
|
||||
//
|
||||
// .frame $fp,48,$ra
|
||||
// .mask 0xc0000000,-8
|
||||
// addiu $sp, $sp, -48
|
||||
// sw $ra, 40($sp)
|
||||
// sw $fp, 36($sp)
|
||||
//
|
||||
// With a 0xc0000000 mask, the assembler knows the register 31 (RA) and
|
||||
// 30 (FP) are saved at prologue. As the save order on prologue is from
|
||||
// left to right, RA is saved first. A -8 offset means that after the
|
||||
// stack pointer subtration, the first register in the mask (RA) will be
|
||||
// saved at address 48-8=40.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Mask directives
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
// Create a bitmask with all callee saved registers for CPU or Floating Point
|
||||
// registers. For CPU registers consider RA, GP and FP for saving if necessary.
|
||||
void MipsAsmPrinter::
|
||||
printSavedRegsBitmask(MachineFunction &MF)
|
||||
{
|
||||
const TargetRegisterInfo &RI = *TM.getRegisterInfo();
|
||||
MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
|
||||
|
||||
// CPU and FPU Saved Registers Bitmasks
|
||||
unsigned int CPUBitmask = 0;
|
||||
unsigned int FPUBitmask = 0;
|
||||
|
||||
// Set the CPU and FPU Bitmasks
|
||||
MachineFrameInfo *MFI = MF.getFrameInfo();
|
||||
const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo();
|
||||
for (unsigned i = 0, e = CSI.size(); i != e; ++i) {
|
||||
unsigned RegNum = MipsRegisterInfo::getRegisterNumbering(CSI[i].getReg());
|
||||
if (CSI[i].getRegClass() == Mips::CPURegsRegisterClass)
|
||||
CPUBitmask |= (1 << RegNum);
|
||||
else
|
||||
FPUBitmask |= (1 << RegNum);
|
||||
}
|
||||
|
||||
// Return Address and Frame registers must also be set in CPUBitmask.
|
||||
if (RI.hasFP(MF))
|
||||
CPUBitmask |= (1 << MipsRegisterInfo::
|
||||
getRegisterNumbering(RI.getFrameRegister(MF)));
|
||||
|
||||
if (MF.getFrameInfo()->hasCalls())
|
||||
CPUBitmask |= (1 << MipsRegisterInfo::
|
||||
getRegisterNumbering(RI.getRARegister()));
|
||||
|
||||
// Print CPUBitmask
|
||||
O << "\t.mask \t"; printHex32(CPUBitmask); O << ','
|
||||
<< MipsFI->getCPUTopSavedRegOff() << '\n';
|
||||
|
||||
// Print FPUBitmask
|
||||
O << "\t.fmask\t"; printHex32(FPUBitmask); O << ","
|
||||
<< MipsFI->getFPUTopSavedRegOff() << '\n';
|
||||
}
|
||||
|
||||
// Print a 32 bit hex number with all numbers.
|
||||
void MipsAsmPrinter::
|
||||
printHex32(unsigned int Value)
|
||||
{
|
||||
O << "0x";
|
||||
for (int i = 7; i >= 0; i--)
|
||||
O << utohexstr( (Value & (0xF << (i*4))) >> (i*4) );
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Frame and Set directives
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
/// Frame Directive
|
||||
void MipsAsmPrinter::
|
||||
emitFrameDirective(MachineFunction &MF)
|
||||
{
|
||||
const TargetRegisterInfo &RI = *TM.getRegisterInfo();
|
||||
|
||||
unsigned stackReg = RI.getFrameRegister(MF);
|
||||
unsigned returnReg = RI.getRARegister();
|
||||
unsigned stackSize = MF.getFrameInfo()->getStackSize();
|
||||
|
||||
|
||||
O << "\t.frame\t" << '$' << LowercaseString(RI.get(stackReg).AsmName)
|
||||
<< ',' << stackSize << ','
|
||||
<< '$' << LowercaseString(RI.get(returnReg).AsmName)
|
||||
<< '\n';
|
||||
}
|
||||
|
||||
/// Emit Set directives.
|
||||
const char * MipsAsmPrinter::
|
||||
emitCurrentABIString(void)
|
||||
{
|
||||
switch(Subtarget->getTargetABI()) {
|
||||
case MipsSubtarget::O32: return "abi32";
|
||||
case MipsSubtarget::O64: return "abiO64";
|
||||
case MipsSubtarget::N32: return "abiN32";
|
||||
case MipsSubtarget::N64: return "abi64";
|
||||
case MipsSubtarget::EABI: return "eabi32"; // TODO: handle eabi64
|
||||
default: break;
|
||||
}
|
||||
|
||||
assert(0 && "Unknown Mips ABI");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/// Emit the directives used by GAS on the start of functions
|
||||
void MipsAsmPrinter::
|
||||
emitFunctionStart(MachineFunction &MF)
|
||||
{
|
||||
// Print out the label for the function.
|
||||
const Function *F = MF.getFunction();
|
||||
SwitchToSection(TAI->SectionForGlobal(F));
|
||||
|
||||
// 2 bits aligned
|
||||
EmitAlignment(2, F);
|
||||
|
||||
O << "\t.globl\t" << CurrentFnName << '\n';
|
||||
O << "\t.ent\t" << CurrentFnName << '\n';
|
||||
|
||||
printVisibility(CurrentFnName, F->getVisibility());
|
||||
|
||||
if ((TAI->hasDotTypeDotSizeDirective()) && Subtarget->isLinux())
|
||||
O << "\t.type\t" << CurrentFnName << ", @function\n";
|
||||
|
||||
O << CurrentFnName << ":\n";
|
||||
|
||||
emitFrameDirective(MF);
|
||||
printSavedRegsBitmask(MF);
|
||||
|
||||
O << '\n';
|
||||
}
|
||||
|
||||
/// Emit the directives used by GAS on the end of functions
|
||||
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';
|
||||
}
|
||||
|
||||
/// runOnMachineFunction - This uses the printMachineInstruction()
|
||||
/// method to print assembly for each instruction.
|
||||
bool MipsAsmPrinter::
|
||||
runOnMachineFunction(MachineFunction &MF)
|
||||
{
|
||||
this->MF = &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);
|
||||
|
||||
O << "\n\n";
|
||||
|
||||
// Emit the function start directives
|
||||
emitFunctionStart(MF);
|
||||
|
||||
// Print out code for the function.
|
||||
for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
|
||||
I != E; ++I) {
|
||||
|
||||
// Print a label for the basic block.
|
||||
if (I != MF.begin()) {
|
||||
printBasicBlockLabel(I, true, true);
|
||||
O << '\n';
|
||||
}
|
||||
|
||||
for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
|
||||
II != E; ++II) {
|
||||
// Print the assembly for the instruction.
|
||||
printInstruction(II);
|
||||
++EmittedInsts;
|
||||
}
|
||||
|
||||
// Each Basic Block is separated by a newline
|
||||
O << '\n';
|
||||
}
|
||||
|
||||
// Emit function end directives
|
||||
emitFunctionEnd(MF);
|
||||
|
||||
// We didn't modify anything.
|
||||
return false;
|
||||
}
|
||||
|
||||
// Print out an operand for an inline asm expression.
|
||||
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.
|
||||
|
||||
printOperand(MI, OpNo);
|
||||
return false;
|
||||
}
|
||||
|
||||
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(";
|
||||
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(";
|
||||
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;
|
||||
}
|
||||
}
|
||||
|
||||
switch (MO.getType())
|
||||
{
|
||||
case MachineOperand::MO_Register:
|
||||
if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()))
|
||||
O << '$' << LowercaseString (RI.get(MO.getReg()).AsmName);
|
||||
else
|
||||
O << '$' << MO.getReg();
|
||||
break;
|
||||
|
||||
case MachineOperand::MO_Immediate:
|
||||
O << (short int)MO.getImm();
|
||||
break;
|
||||
|
||||
case MachineOperand::MO_MachineBasicBlock:
|
||||
printBasicBlockLabel(MO.getMBB());
|
||||
return;
|
||||
|
||||
case MachineOperand::MO_GlobalAddress:
|
||||
{
|
||||
const GlobalValue *GV = MO.getGlobal();
|
||||
O << Mang->getValueName(GV);
|
||||
}
|
||||
break;
|
||||
|
||||
case MachineOperand::MO_ExternalSymbol:
|
||||
O << MO.getSymbolName();
|
||||
break;
|
||||
|
||||
case MachineOperand::MO_JumpTableIndex:
|
||||
O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
|
||||
<< '_' << MO.getIndex();
|
||||
break;
|
||||
|
||||
case MachineOperand::MO_ConstantPoolIndex:
|
||||
O << TAI->getPrivateGlobalPrefix() << "CPI"
|
||||
<< getFunctionNumber() << "_" << MO.getIndex();
|
||||
break;
|
||||
|
||||
default:
|
||||
O << "<unknown operand type>"; abort (); break;
|
||||
}
|
||||
|
||||
if (closeP) O << ")";
|
||||
}
|
||||
|
||||
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();
|
||||
else
|
||||
printOperand(MI, opNum);
|
||||
}
|
||||
|
||||
void MipsAsmPrinter::
|
||||
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")) {
|
||||
printOperand(MI, opNum+1);
|
||||
O << ", ";
|
||||
printOperand(MI, opNum);
|
||||
return;
|
||||
}
|
||||
|
||||
// Load/Store memory operands -- imm($reg)
|
||||
// If PIC target the target is loaded as the
|
||||
// pattern lw $25,%call16($28)
|
||||
printOperand(MI, opNum);
|
||||
O << "(";
|
||||
printOperand(MI, opNum+1);
|
||||
O << ")";
|
||||
}
|
||||
|
||||
void MipsAsmPrinter::
|
||||
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());
|
||||
|
||||
// Tell the assembler which ABI we are using
|
||||
O << "\t.section .mdebug." << emitCurrentABIString() << '\n';
|
||||
|
||||
// TODO: handle O64 ABI
|
||||
if (Subtarget->isABI_EABI())
|
||||
O << "\t.section .gcc_compiled_long" <<
|
||||
(Subtarget->isGP32bit() ? "32" : "64") << '\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();
|
||||
const Type *CTy = C->getType();
|
||||
unsigned Size = TD->getTypePaddedSize(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:
|
||||
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!");
|
||||
}
|
||||
|
||||
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);
|
||||
}
|
||||
Reference in New Issue
Block a user