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llvm-mirror/lib/MC/MCInstrAnalysis.cpp
Fangrui Song 79d84987ff [MC] Move MCInstrAnalysis::evaluateBranch to X86MCInstrAnalysis::evaluateBranch
The generic implementation is actually specific to x86. It assumes the
offset is relative to the end of the instruction and the immediate is
not scaled (which is false on most RISC).
2020-04-29 23:23:52 -07:00

37 lines
1.2 KiB
C++

//===- 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 {
return false;
}
Optional<uint64_t>
MCInstrAnalysis::evaluateMemoryOperandAddress(const MCInst &Inst, uint64_t Addr,
uint64_t Size) const {
return None;
}