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| 1 | +//===- ARCAsmPrinter.cpp - ARC LLVM assembly writer -------------*- C++ -*-===// |
| 2 | +// |
| 3 | +// The LLVM Compiler Infrastructure |
| 4 | +// |
| 5 | +// This file is distributed under the University of Illinois Open Source |
| 6 | +// License. See LICENSE.TXT for details. |
| 7 | +// |
| 8 | +//===----------------------------------------------------------------------===// |
| 9 | +// |
| 10 | +// This file contains a printer that converts from our internal representation |
| 11 | +// of machine-dependent LLVM code to GNU format ARC assembly language. |
| 12 | +// |
| 13 | +//===----------------------------------------------------------------------===// |
| 14 | + |
| 15 | +#include "ARC.h" |
| 16 | +#include "ARCInstrInfo.h" |
| 17 | +#include "ARCMCInstLower.h" |
| 18 | +#include "ARCSubtarget.h" |
| 19 | +#include "ARCTargetMachine.h" |
| 20 | +#include "ARCTargetStreamer.h" |
| 21 | +#include "InstPrinter/ARCInstPrinter.h" |
| 22 | +#include "llvm/ADT/SmallString.h" |
| 23 | +#include "llvm/ADT/StringExtras.h" |
| 24 | +#include "llvm/CodeGen/AsmPrinter.h" |
| 25 | +#include "llvm/CodeGen/MachineFunctionPass.h" |
| 26 | +#include "llvm/CodeGen/MachineInstr.h" |
| 27 | +#include "llvm/CodeGen/MachineModuleInfo.h" |
| 28 | +#include "llvm/MC/MCAsmInfo.h" |
| 29 | +#include "llvm/MC/MCExpr.h" |
| 30 | +#include "llvm/MC/MCInst.h" |
| 31 | +#include "llvm/MC/MCStreamer.h" |
| 32 | +#include "llvm/MC/MCSymbolELF.h" |
| 33 | +#include "llvm/Support/ErrorHandling.h" |
| 34 | +#include "llvm/Support/TargetRegistry.h" |
| 35 | +#include "llvm/Support/raw_ostream.h" |
| 36 | +#include "llvm/Target/TargetLoweringObjectFile.h" |
| 37 | +#include <algorithm> |
| 38 | + |
| 39 | +using namespace llvm; |
| 40 | + |
| 41 | +#define DEBUG_TYPE "asm-printer" |
| 42 | + |
| 43 | +namespace { |
| 44 | + |
| 45 | +class ARCAsmPrinter : public AsmPrinter { |
| 46 | + ARCMCInstLower MCInstLowering; |
| 47 | + ARCTargetStreamer &getTargetStreamer(); |
| 48 | + |
| 49 | +public: |
| 50 | + explicit ARCAsmPrinter(TargetMachine &TM, |
| 51 | + std::unique_ptr<MCStreamer> Streamer) |
| 52 | + : AsmPrinter(TM, std::move(Streamer)), |
| 53 | + MCInstLowering(&OutContext, *this) {} |
| 54 | + |
| 55 | + StringRef getPassName() const override { return "ARC Assembly Printer"; } |
| 56 | + void EmitInstruction(const MachineInstr *MI) override; |
| 57 | +}; |
| 58 | + |
| 59 | +} // end anonymous namespace |
| 60 | + |
| 61 | +ARCTargetStreamer &ARCAsmPrinter::getTargetStreamer() { |
| 62 | + return static_cast<ARCTargetStreamer &>(*OutStreamer-> getTargetStreamer()); |
| 63 | +} |
| 64 | + |
| 65 | +void ARCAsmPrinter::EmitInstruction(const MachineInstr *MI) { |
| 66 | + SmallString<128> Str; |
| 67 | + raw_svector_ostream O(Str); |
| 68 | + |
| 69 | + switch (MI->getOpcode()) { |
| 70 | + case ARC::DBG_VALUE: |
| 71 | + llvm_unreachable("Should be handled target independently"); |
| 72 | + break; |
| 73 | + } |
| 74 | + |
| 75 | + MCInst TmpInst; |
| 76 | + MCInstLowering.Lower(MI, TmpInst); |
| 77 | + EmitToStreamer(*OutStreamer, TmpInst); |
| 78 | +} |
| 79 | + |
| 80 | +// Force static initialization. |
| 81 | +extern "C" void LLVMInitializeARCAsmPrinter() { |
| 82 | + RegisterAsmPrinter<ARCAsmPrinter> X(getTheARCTarget()); |
| 83 | +} |
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