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llvm-mirror/lib/MC/MCInst.cpp
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

99 lines
2.6 KiB
C++

//===- lib/MC/MCInst.cpp - MCInst implementation --------------------------===//
//
// 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 "llvm/MC/MCInst.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
void MCOperand::print(raw_ostream &OS) const {
OS << "<MCOperand ";
if (!isValid())
OS << "INVALID";
else if (isReg())
OS << "Reg:" << getReg();
else if (isImm())
OS << "Imm:" << getImm();
else if (isFPImm())
OS << "FPImm:" << getFPImm();
else if (isExpr()) {
OS << "Expr:(" << *getExpr() << ")";
} else if (isInst()) {
OS << "Inst:(" << *getInst() << ")";
} else
OS << "UNDEFINED";
OS << ">";
}
bool MCOperand::evaluateAsConstantImm(int64_t &Imm) const {
if (isImm()) {
Imm = getImm();
return true;
}
return false;
}
bool MCOperand::isBareSymbolRef() const {
assert(isExpr() &&
"isBareSymbolRef expects only expressions");
const MCExpr *Expr = getExpr();
MCExpr::ExprKind Kind = getExpr()->getKind();
return Kind == MCExpr::SymbolRef &&
cast<MCSymbolRefExpr>(Expr)->getKind() == MCSymbolRefExpr::VK_None;
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
LLVM_DUMP_METHOD void MCOperand::dump() const {
print(dbgs());
dbgs() << "\n";
}
#endif
void MCInst::print(raw_ostream &OS) const {
OS << "<MCInst " << getOpcode();
for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
OS << " ";
getOperand(i).print(OS);
}
OS << ">";
}
void MCInst::dump_pretty(raw_ostream &OS, const MCInstPrinter *Printer,
StringRef Separator) const {
StringRef InstName = Printer ? Printer->getOpcodeName(getOpcode()) : "";
dump_pretty(OS, InstName, Separator);
}
void MCInst::dump_pretty(raw_ostream &OS, StringRef Name,
StringRef Separator) const {
OS << "<MCInst #" << getOpcode();
// Show the instruction opcode name if we have it.
if (!Name.empty())
OS << ' ' << Name;
for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
OS << Separator;
getOperand(i).print(OS);
}
OS << ">";
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
LLVM_DUMP_METHOD void MCInst::dump() const {
print(dbgs());
dbgs() << "\n";
}
#endif