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//===-- ARMAsmPrinter.cpp - ARM LLVM assembly writer ----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the "Instituto Nokia de Tecnologia" 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
// of machine-dependent LLVM code to GAS-format ARM assembly language.
//
//===----------------------------------------------------------------------===//
#include "ARM.h"
#include "ARMInstrInfo.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/TargetMachine.h"
#include "llvm/Support/Mangler.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.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");
struct ARMAsmPrinter : public AsmPrinter {
ARMAsmPrinter(std::ostream &O, TargetMachine &TM) : AsmPrinter(O, TM) {
Data16bitsDirective = "\t.half\t";
Data32bitsDirective = "\t.word\t";
Data64bitsDirective = 0;
ZeroDirective = "\t.skip\t";
CommentString = "!";
ConstantPoolSection = "\t.section \".rodata\",#alloc\n";
}
/// We name each basic block in a Function with a unique number, so
/// that we can consistently refer to them later. This is cleared
/// at the beginning of each call to runOnMachineFunction().
///
typedef std::map<const Value *, unsigned> ValueMapTy;
ValueMapTy NumberForBB;
virtual const char *getPassName() const {
return "ARM Assembly Printer";
}
void printOperand(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);
bool doInitialization(Module &M);
bool doFinalization(Module &M);
};
} // end of anonymous namespace
#include "ARMGenAsmWriter.inc"
/// createARMCodePrinterPass - Returns a pass that prints the ARM
/// 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::createARMCodePrinterPass(std::ostream &o,
TargetMachine &tm) {
return new ARMAsmPrinter(o, tm);
}
/// runOnMachineFunction - This uses the printMachineInstruction()
/// method to print assembly for each instruction.
///
bool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
assert(0 && "not implemented");
// We didn't modify anything.
return false;
}
void ARMAsmPrinter::printOperand(const MachineInstr *MI, int opNum) {
assert(0 && "not implemented");
}
void ARMAsmPrinter::printMemOperand(const MachineInstr *MI, int opNum,
const char *Modifier) {
assert(0 && "not implemented");
}
void ARMAsmPrinter::printCCOperand(const MachineInstr *MI, int opNum) {
assert(0 && "not implemented");
}
bool ARMAsmPrinter::doInitialization(Module &M) {
Mang = new Mangler(M);
return false; // success
}
bool ARMAsmPrinter::doFinalization(Module &M) {
assert(0 && "not implemented");
AsmPrinter::doFinalization(M);
return false; // success
}
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