Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/lib/Target/AVR/InstPrinter/AVRInstPrinter.cpp

@@ -1,171 +0,0 @@
-//===-- AVRInstPrinter.cpp - Convert AVR MCInst to assembly syntax --------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This class prints an AVR MCInst to a .s file.
-//
-//===----------------------------------------------------------------------===//
-
-#include "AVRInstPrinter.h"
-
-#include "MCTargetDesc/AVRMCTargetDesc.h"
-
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCInst.h"
-#include "llvm/MC/MCInstrDesc.h"
-#include "llvm/MC/MCInstrInfo.h"
-#include "llvm/MC/MCRegisterInfo.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/FormattedStream.h"
-
-#include <cstring>
-
-#define DEBUG_TYPE "asm-printer"
-
-namespace llvm {
-
-// Include the auto-generated portion of the assembly writer.
-#define PRINT_ALIAS_INSTR
-#include "AVRGenAsmWriter.inc"
-
-void AVRInstPrinter::printInst(const MCInst *MI, raw_ostream &O,
-                               StringRef Annot, const MCSubtargetInfo &STI) {
-  unsigned Opcode = MI->getOpcode();
-
-  // First handle load and store instructions with postinc or predec
-  // of the form "ld reg, X+".
-  // TODO: We should be able to rewrite this using TableGen data.
-  switch (Opcode) {
-  case AVR::LDRdPtr:
-  case AVR::LDRdPtrPi:
-  case AVR::LDRdPtrPd:
-    O << "\tld\t";
-    printOperand(MI, 0, O);
-    O << ", ";
-
-    if (Opcode == AVR::LDRdPtrPd)
-      O << '-';
-
-    printOperand(MI, 1, O);
-
-    if (Opcode == AVR::LDRdPtrPi)
-      O << '+';
-    break;
-  case AVR::STPtrRr:
-    O << "\tst\t";
-    printOperand(MI, 0, O);
-    O << ", ";
-    printOperand(MI, 1, O);
-    break;
-  case AVR::STPtrPiRr:
-  case AVR::STPtrPdRr:
-    O << "\tst\t";
-
-    if (Opcode == AVR::STPtrPdRr)
-      O << '-';
-
-    printOperand(MI, 1, O);
-
-    if (Opcode == AVR::STPtrPiRr)
-      O << '+';
-
-    O << ", ";
-    printOperand(MI, 2, O);
-    break;
-  default:
-    if (!printAliasInstr(MI, O))
-      printInstruction(MI, O);
-
-    printAnnotation(O, Annot);
-    break;
-  }
-}
-
-const char *AVRInstPrinter::getPrettyRegisterName(unsigned RegNum,
-                                                  MCRegisterInfo const &MRI) {
-  // GCC prints register pairs by just printing the lower register
-  // If the register contains a subregister, print it instead
-  if (MRI.getNumSubRegIndices() > 0) {
-    unsigned RegLoNum = MRI.getSubReg(RegNum, AVR::sub_lo);
-    RegNum = (RegLoNum != AVR::NoRegister) ? RegLoNum : RegNum;
-  }
-
-  return getRegisterName(RegNum);
-}
-
-void AVRInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
-                                  raw_ostream &O) {
-  const MCOperand &Op = MI->getOperand(OpNo);
-  const MCOperandInfo &MOI = this->MII.get(MI->getOpcode()).OpInfo[OpNo];
-
-  if (Op.isReg()) {
-    bool isPtrReg = (MOI.RegClass == AVR::PTRREGSRegClassID) ||
-                    (MOI.RegClass == AVR::PTRDISPREGSRegClassID) ||
-                    (MOI.RegClass == AVR::ZREGRegClassID);
-
-    if (isPtrReg) {
-      O << getRegisterName(Op.getReg(), AVR::ptr);
-    } else {
-      O << getPrettyRegisterName(Op.getReg(), MRI);
-    }
-  } else if (Op.isImm()) {
-    O << Op.getImm();
-  } else {
-    assert(Op.isExpr() && "Unknown operand kind in printOperand");
-    O << *Op.getExpr();
-  }
-}
-
-/// This is used to print an immediate value that ends up
-/// being encoded as a pc-relative value.
-void AVRInstPrinter::printPCRelImm(const MCInst *MI, unsigned OpNo,
-                                   raw_ostream &O) {
-  const MCOperand &Op = MI->getOperand(OpNo);
-
-  if (Op.isImm()) {
-    int64_t Imm = Op.getImm();
-    O << '.';
-
-    // Print a position sign if needed.
-    // Negative values have their sign printed automatically.
-    if (Imm >= 0)
-      O << '+';
-
-    O << Imm;
-  } else {
-    assert(Op.isExpr() && "Unknown pcrel immediate operand");
-    O << *Op.getExpr();
-  }
-}
-
-void AVRInstPrinter::printMemri(const MCInst *MI, unsigned OpNo,
-                                raw_ostream &O) {
-  assert(MI->getOperand(OpNo).isReg() && "Expected a register for the first operand");
-
-  const MCOperand &OffsetOp = MI->getOperand(OpNo + 1);
-
-  // Print the register.
-  printOperand(MI, OpNo, O);
-
-  // Print the {+,-}offset.
-  if (OffsetOp.isImm()) {
-    int64_t Offset = OffsetOp.getImm();
-
-    if (Offset >= 0)
-      O << '+';
-
-    O << Offset;
-  } else if (OffsetOp.isExpr()) {
-    O << *OffsetOp.getExpr();
-  } else {
-    llvm_unreachable("unknown type for offset");
-  }
-}
-
-} // end of namespace llvm
-