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116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
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//===-- ARMAsmPrinter.cpp - ARM LLVM assembly writer ----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the "Instituto Nokia de Tecnologia" and
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// is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains a printer that converts from our internal representation
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// of machine-dependent LLVM code to GAS-format ARM assembly language.
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//
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//===----------------------------------------------------------------------===//
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#include "ARM.h"
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#include "ARMInstrInfo.h"
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#include "llvm/Constants.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/Module.h"
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#include "llvm/Assembly/Writer.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/CodeGen/MachineConstantPool.h"
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#include "llvm/CodeGen/MachineInstr.h"
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Support/Mangler.h"
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#include "llvm/ADT/Statistic.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/MathExtras.h"
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#include <cctype>
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#include <iostream>
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using namespace llvm;
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namespace {
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Statistic<> EmittedInsts("asm-printer", "Number of machine instrs printed");
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struct ARMAsmPrinter : public AsmPrinter {
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ARMAsmPrinter(std::ostream &O, TargetMachine &TM) : AsmPrinter(O, TM) {
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Data16bitsDirective = "\t.half\t";
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Data32bitsDirective = "\t.word\t";
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Data64bitsDirective = 0;
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ZeroDirective = "\t.skip\t";
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CommentString = "!";
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ConstantPoolSection = "\t.section \".rodata\",#alloc\n";
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}
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/// We name each basic block in a Function with a unique number, so
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/// that we can consistently refer to them later. This is cleared
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/// at the beginning of each call to runOnMachineFunction().
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///
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typedef std::map<const Value *, unsigned> ValueMapTy;
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ValueMapTy NumberForBB;
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virtual const char *getPassName() const {
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return "ARM Assembly Printer";
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}
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void printOperand(const MachineInstr *MI, int opNum);
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void printMemOperand(const MachineInstr *MI, int opNum,
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const char *Modifier = 0);
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void printCCOperand(const MachineInstr *MI, int opNum);
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bool printInstruction(const MachineInstr *MI); // autogenerated.
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bool runOnMachineFunction(MachineFunction &F);
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bool doInitialization(Module &M);
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bool doFinalization(Module &M);
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};
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} // end of anonymous namespace
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#include "ARMGenAsmWriter.inc"
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/// createARMCodePrinterPass - Returns a pass that prints the ARM
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/// assembly code for a MachineFunction to the given output stream,
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/// using the given target machine description. This should work
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/// regardless of whether the function is in SSA form.
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///
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FunctionPass *llvm::createARMCodePrinterPass(std::ostream &o,
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TargetMachine &tm) {
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return new ARMAsmPrinter(o, tm);
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}
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/// runOnMachineFunction - This uses the printMachineInstruction()
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/// method to print assembly for each instruction.
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///
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bool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
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assert(0 && "not implemented");
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// We didn't modify anything.
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return false;
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}
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void ARMAsmPrinter::printOperand(const MachineInstr *MI, int opNum) {
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assert(0 && "not implemented");
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}
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void ARMAsmPrinter::printMemOperand(const MachineInstr *MI, int opNum,
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const char *Modifier) {
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assert(0 && "not implemented");
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}
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void ARMAsmPrinter::printCCOperand(const MachineInstr *MI, int opNum) {
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assert(0 && "not implemented");
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}
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bool ARMAsmPrinter::doInitialization(Module &M) {
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Mang = new Mangler(M);
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return false; // success
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}
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bool ARMAsmPrinter::doFinalization(Module &M) {
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assert(0 && "not implemented");
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AsmPrinter::doFinalization(M);
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return false; // success
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}
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