File: MCInstrAnalysis.cpp

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (35 lines) | stat: -rw-r--r-- 1,189 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
//===- MCInstrAnalysis.cpp - InstrDesc target hooks -----------------------===//
//
// 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/MCInstrAnalysis.h"

#include "llvm/ADT/APInt.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstrDesc.h"
#include "llvm/MC/MCInstrInfo.h"
#include <cstdint>

using namespace llvm;

bool MCInstrAnalysis::clearsSuperRegisters(const MCRegisterInfo &MRI,
                                           const MCInst &Inst,
                                           APInt &Writes) const {
  Writes.clearAllBits();
  return false;
}

bool MCInstrAnalysis::evaluateBranch(const MCInst &Inst, uint64_t Addr,
                                     uint64_t Size, uint64_t &Target) const {
  if (Inst.getNumOperands() == 0 ||
      Info->get(Inst.getOpcode()).OpInfo[0].OperandType != MCOI::OPERAND_PCREL)
    return false;

  int64_t Imm = Inst.getOperand(0).getImm();
  Target = Addr+Size+Imm;
  return true;
}