1 files changed, 113 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Target/M68k/M68kAsmPrinter.cpp b/contrib/llvm-project/llvm/lib/Target/M68k/M68kAsmPrinter.cpp
new file mode 100644
index 000000000000..a6fc58b5a277
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+++ b/contrib/llvm-project/llvm/lib/Target/M68k/M68kAsmPrinter.cpp
@@ -0,0 +1,113 @@
+//===----- M68kAsmPrinter.cpp - M68k LLVM Assembly Printer -----*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file contains a printer that converts from our internal representation
+/// of machine-dependent LLVM code to GAS-format M68k assembly language.
+///
+//===----------------------------------------------------------------------===//
+
+// TODO Conform to Motorola ASM syntax
+
+#include "M68kAsmPrinter.h"
+
+#include "M68k.h"
+#include "M68kMachineFunction.h"
+#include "MCTargetDesc/M68kInstPrinter.h"
+#include "TargetInfo/M68kTargetInfo.h"
+
+#include "llvm/Support/TargetRegistry.h"
+
+using namespace llvm;
+
+#define DEBUG_TYPE "m68k-asm-printer"
+
+bool M68kAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
+  MMFI = MF.getInfo<M68kMachineFunctionInfo>();
+  MCInstLowering = std::make_unique<M68kMCInstLower>(MF, *this);
+  AsmPrinter::runOnMachineFunction(MF);
+  return true;
+}
+
+void M68kAsmPrinter::printOperand(const MachineInstr *MI, int OpNum,
+                                  raw_ostream &OS) {
+  const MachineOperand &MO = MI->getOperand(OpNum);
+  switch (MO.getType()) {
+  case MachineOperand::MO_Register:
+    OS << "%" << M68kInstPrinter::getRegisterName(MO.getReg());
+    break;
+  case MachineOperand::MO_Immediate:
+    OS << '#' << MO.getImm();
+    break;
+  case MachineOperand::MO_MachineBasicBlock:
+    MO.getMBB()->getSymbol()->print(OS, MAI);
+    break;
+  case MachineOperand::MO_GlobalAddress:
+    PrintSymbolOperand(MO, OS);
+    break;
+  case MachineOperand::MO_BlockAddress:
+    GetBlockAddressSymbol(MO.getBlockAddress())->print(OS, MAI);
+    break;
+  case MachineOperand::MO_ConstantPoolIndex: {
+    const DataLayout &DL = getDataLayout();
+    OS << DL.getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << '_'
+       << MO.getIndex();
+    break;
+  }
+  default:
+    llvm_unreachable("not implemented");
+  }
+}
+
+bool M68kAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
+                                     const char *ExtraCode, raw_ostream &OS) {
+  // Print the operand if there is no operand modifier.
+  if (!ExtraCode || !ExtraCode[0]) {
+    printOperand(MI, OpNo, OS);
+    return false;
+  }
+
+  // Fallback to the default implementation.
+  return AsmPrinter::PrintAsmOperand(MI, OpNo, ExtraCode, OS);
+}
+
+void M68kAsmPrinter::emitInstruction(const MachineInstr *MI) {
+  switch (MI->getOpcode()) {
+  default: {
+    if (MI->isPseudo()) {
+      LLVM_DEBUG(dbgs() << "Pseudo opcode(" << MI->getOpcode()
+                        << ") found in EmitInstruction()\n");
+      llvm_unreachable("Cannot proceed");
+    }
+    break;
+  }
+  case M68k::TAILJMPj:
+  case M68k::TAILJMPq:
+    // Lower these as normal, but add some comments.
+    OutStreamer->AddComment("TAILCALL");
+    break;
+  }
+
+  MCInst TmpInst0;
+  MCInstLowering->Lower(MI, TmpInst0);
+  OutStreamer->emitInstruction(TmpInst0, getSubtargetInfo());
+}
+
+void M68kAsmPrinter::emitFunctionBodyStart() {}
+
+void M68kAsmPrinter::emitFunctionBodyEnd() {}
+
+void M68kAsmPrinter::emitStartOfAsmFile(Module &M) {
+  OutStreamer->emitSyntaxDirective();
+}
+
+void M68kAsmPrinter::emitEndOfAsmFile(Module &M) {}
+
+extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeM68kAsmPrinter() {
+  RegisterAsmPrinter<M68kAsmPrinter> X(getTheM68kTarget());
+}