Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/lib/Target/BPF/InstPrinter/BPFInstPrinter.cpp

@@ -1,109 +0,0 @@
-//===-- BPFInstPrinter.cpp - Convert BPF MCInst to asm 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 BPF MCInst to a .s file.
-//
-//===----------------------------------------------------------------------===//
-
-#include "BPFInstPrinter.h"
-#include "BPF.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCInst.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/FormattedStream.h"
-using namespace llvm;
-
-#define DEBUG_TYPE "asm-printer"
-
-// Include the auto-generated portion of the assembly writer.
-#include "BPFGenAsmWriter.inc"
-
-void BPFInstPrinter::printInst(const MCInst *MI, raw_ostream &O,
-                               StringRef Annot, const MCSubtargetInfo &STI) {
-  printInstruction(MI, O);
-  printAnnotation(O, Annot);
-}
-
-static void printExpr(const MCExpr *Expr, raw_ostream &O) {
-#ifndef NDEBUG
-  const MCSymbolRefExpr *SRE;
-
-  if (const MCBinaryExpr *BE = dyn_cast<MCBinaryExpr>(Expr))
-    SRE = dyn_cast<MCSymbolRefExpr>(BE->getLHS());
-  else
-    SRE = dyn_cast<MCSymbolRefExpr>(Expr);
-  assert(SRE && "Unexpected MCExpr type.");
-
-  MCSymbolRefExpr::VariantKind Kind = SRE->getKind();
-
-  assert(Kind == MCSymbolRefExpr::VK_None);
-#endif
-  O << *Expr;
-}
-
-void BPFInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
-                                  raw_ostream &O, const char *Modifier) {
-  assert((Modifier == 0 || Modifier[0] == 0) && "No modifiers supported");
-  const MCOperand &Op = MI->getOperand(OpNo);
-  if (Op.isReg()) {
-    O << getRegisterName(Op.getReg());
-  } else if (Op.isImm()) {
-    O << formatImm((int32_t)Op.getImm());
-  } else {
-    assert(Op.isExpr() && "Expected an expression");
-    printExpr(Op.getExpr(), O);
-  }
-}
-
-void BPFInstPrinter::printMemOperand(const MCInst *MI, int OpNo, raw_ostream &O,
-                                     const char *Modifier) {
-  const MCOperand &RegOp = MI->getOperand(OpNo);
-  const MCOperand &OffsetOp = MI->getOperand(OpNo + 1);
-
-  // register
-  assert(RegOp.isReg() && "Register operand not a register");
-  O << getRegisterName(RegOp.getReg());
-
-  // offset
-  if (OffsetOp.isImm()) {
-    auto Imm = OffsetOp.getImm();
-    if (Imm >= 0)
-      O << " + " << formatImm(Imm);
-    else
-      O << " - " << formatImm(-Imm);
-  } else {
-    assert(0 && "Expected an immediate");
-  }
-}
-
-void BPFInstPrinter::printImm64Operand(const MCInst *MI, unsigned OpNo,
-                                       raw_ostream &O) {
-  const MCOperand &Op = MI->getOperand(OpNo);
-  if (Op.isImm())
-    O << formatImm(Op.getImm());
-  else if (Op.isExpr())
-    printExpr(Op.getExpr(), O);
-  else
-    O << Op;
-}
-
-void BPFInstPrinter::printBrTargetOperand(const MCInst *MI, unsigned OpNo,
-                                       raw_ostream &O) {
-  const MCOperand &Op = MI->getOperand(OpNo);
-  if (Op.isImm()) {
-    int16_t Imm = Op.getImm();
-    O << ((Imm >= 0) ? "+" : "") << formatImm(Imm);
-  } else if (Op.isExpr()) {
-    printExpr(Op.getExpr(), O);
-  } else {
-    O << Op;
-  }
-}