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//=- SystemZInstPrinterCommon.cpp - Common SystemZ MCInst to assembly funcs -=//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "SystemZInstPrinterCommon.h"
#include "MCTargetDesc/SystemZMCAsmInfo.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCRegister.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <cstdint>
using namespace llvm;
#define DEBUG_TYPE "asm-printer"
void SystemZInstPrinterCommon::printAddress(const MCAsmInfo *MAI,
MCRegister Base,
const MCOperand &DispMO,
MCRegister Index, raw_ostream &O) {
printOperand(DispMO, MAI, O);
if (Base || Index) {
O << '(';
if (Index) {
printRegName(O, Index);
O << ',';
}
if (Base)
printRegName(O, Base);
else
O << '0';
O << ')';
}
}
void SystemZInstPrinterCommon::printOperand(const MCOperand &MO,
const MCAsmInfo *MAI,
raw_ostream &O) {
if (MO.isReg()) {
if (!MO.getReg())
O << '0';
else
printRegName(O, MO.getReg());
} else if (MO.isImm())
markup(O, Markup::Immediate) << MO.getImm();
else if (MO.isExpr())
MAI->printExpr(O, *MO.getExpr());
else
llvm_unreachable("Invalid operand");
}
void SystemZInstPrinterCommon::printRegName(raw_ostream &O, MCRegister Reg) {
printFormattedRegName(&MAI, Reg, O);
}
template <unsigned N>
void SystemZInstPrinterCommon::printUImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
const MCOperand &MO = MI->getOperand(OpNum);
if (MO.isExpr()) {
MAI.printExpr(O, *MO.getExpr());
return;
}
uint64_t Value = static_cast<uint64_t>(MO.getImm());
assert(isUInt<N>(Value) && "Invalid uimm argument");
markup(O, Markup::Immediate) << Value;
}
template <unsigned N>
void SystemZInstPrinterCommon::printSImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
const MCOperand &MO = MI->getOperand(OpNum);
if (MO.isExpr()) {
MAI.printExpr(O, *MO.getExpr());
return;
}
int64_t Value = MI->getOperand(OpNum).getImm();
assert(isInt<N>(Value) && "Invalid simm argument");
markup(O, Markup::Immediate) << Value;
}
void SystemZInstPrinterCommon::printU1ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printUImmOperand<1>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printU2ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printUImmOperand<2>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printU3ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printUImmOperand<3>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printU4ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printUImmOperand<4>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printS8ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printSImmOperand<8>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printU8ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printUImmOperand<8>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printU12ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printUImmOperand<12>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printS16ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printSImmOperand<16>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printU16ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printUImmOperand<16>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printS32ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printSImmOperand<32>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printU32ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printUImmOperand<32>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printU48ImmOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printUImmOperand<48>(MI, OpNum, O);
}
void SystemZInstPrinterCommon::printPCRelOperand(const MCInst *MI,
uint64_t Address, int OpNum,
raw_ostream &O) {
const MCOperand &MO = MI->getOperand(OpNum);
// If the label has already been resolved to an immediate offset (say, when
// we're running the disassembler), just print the immediate.
if (MO.isImm()) {
int64_t Offset = MO.getImm();
if (PrintBranchImmAsAddress)
markup(O, Markup::Target) << formatHex(Address + Offset);
else
markup(O, Markup::Immediate) << formatImm(Offset);
return;
}
// If the branch target is simply an address then print it in hex.
const MCConstantExpr *BranchTarget = dyn_cast<MCConstantExpr>(MO.getExpr());
int64_t TargetAddress;
if (BranchTarget && BranchTarget->evaluateAsAbsolute(TargetAddress)) {
markup(O, Markup::Target) << formatHex((uint64_t)TargetAddress);
} else {
// Otherwise, just print the expression.
MAI.printExpr(O, *MO.getExpr());
}
}
void SystemZInstPrinterCommon::printPCRelTLSOperand(const MCInst *MI,
uint64_t Address, int OpNum,
raw_ostream &O) {
// Output the PC-relative operand.
printPCRelOperand(MI, Address, OpNum, O);
// Output the TLS marker if present.
if ((unsigned)OpNum + 1 < MI->getNumOperands()) {
const MCOperand &MO = MI->getOperand(OpNum + 1);
const MCSymbolRefExpr &refExp = cast<MCSymbolRefExpr>(*MO.getExpr());
switch (refExp.getSpecifier()) {
case SystemZ::S_TLSGD:
O << ":tls_gdcall:";
break;
case SystemZ::S_TLSLDM:
O << ":tls_ldcall:";
break;
default:
llvm_unreachable("Unexpected symbol kind");
}
O << refExp.getSymbol().getName();
}
}
void SystemZInstPrinterCommon::printOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printOperand(MI->getOperand(OpNum), &MAI, O);
}
void SystemZInstPrinterCommon::printBDAddrOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printAddress(&MAI, MI->getOperand(OpNum).getReg(), MI->getOperand(OpNum + 1),
0, O);
}
void SystemZInstPrinterCommon::printBDXAddrOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printAddress(&MAI, MI->getOperand(OpNum).getReg(), MI->getOperand(OpNum + 1),
MI->getOperand(OpNum + 2).getReg(), O);
}
void SystemZInstPrinterCommon::printBDLAddrOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
unsigned Base = MI->getOperand(OpNum).getReg();
const MCOperand &DispMO = MI->getOperand(OpNum + 1);
uint64_t Length = MI->getOperand(OpNum + 2).getImm();
printOperand(DispMO, &MAI, O);
O << '(' << Length;
if (Base) {
O << ",";
printRegName(O, Base);
}
O << ')';
}
void SystemZInstPrinterCommon::printBDRAddrOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
unsigned Base = MI->getOperand(OpNum).getReg();
const MCOperand &DispMO = MI->getOperand(OpNum + 1);
unsigned Length = MI->getOperand(OpNum + 2).getReg();
printOperand(DispMO, &MAI, O);
O << "(";
printRegName(O, Length);
if (Base) {
O << ",";
printRegName(O, Base);
}
O << ')';
}
void SystemZInstPrinterCommon::printBDVAddrOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printAddress(&MAI, MI->getOperand(OpNum).getReg(), MI->getOperand(OpNum + 1),
MI->getOperand(OpNum + 2).getReg(), O);
}
void SystemZInstPrinterCommon::printLXAAddrOperand(const MCInst *MI, int OpNum,
raw_ostream &O) {
printAddress(&MAI, MI->getOperand(OpNum).getReg(), MI->getOperand(OpNum + 1),
MI->getOperand(OpNum + 2).getReg(), O);
}
void SystemZInstPrinterCommon::printCond4Operand(const MCInst *MI, int OpNum,
raw_ostream &O) {
static const char *const CondNames[] = {"o", "h", "nle", "l", "nhe",
"lh", "ne", "e", "nlh", "he",
"nl", "le", "nh", "no"};
uint64_t Imm = MI->getOperand(OpNum).getImm();
assert(Imm > 0 && Imm < 15 && "Invalid condition");
O << CondNames[Imm - 1];
}
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