non-const-visitor.h

// Copyright 2014, VIXL authors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//   * Neither the name of ARM Limited nor the names of its contributors may be
//     used to endorse or promote products derived from this software without
//     specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef VIXL_EXAMPLES_NON_CONST_VISITOR_H_
#define VIXL_EXAMPLES_NON_CONST_VISITOR_H_

#include "aarch64/decoder-aarch64.h"
#include "aarch64/macro-assembler-aarch64.h"

class SwitchAddSubRegisterSources : public vixl::aarch64::DecoderVisitor {
 public:
  SwitchAddSubRegisterSources()
      : vixl::aarch64::DecoderVisitor(kNonConstVisitor) {}

  // Our visitor switches the register sources for some add and sub instructions
  // (not all add and sub instructions).

  virtual void Visit(vixl::aarch64::Metadata* metadata,
                     const vixl::aarch64::Instruction* instr) VIXL_OVERRIDE;
};


void GenerateNonConstVisitorTestCode(vixl::aarch64::MacroAssembler* masm);

int64_t RunNonConstVisitorTestGeneratedCode(
    const vixl::aarch64::Instruction* start_instr);

void ModifyNonConstVisitorTestGeneratedCode(vixl::aarch64::Instruction* start,
                                            vixl::aarch64::Instruction* end);


#endif