1 // Copyright 2014, VIXL authors 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are met: 6 // 7 // * Redistributions of source code must retain the above copyright notice, 8 // this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above copyright notice, 10 // this list of conditions and the following disclaimer in the documentation 11 // and/or other materials provided with the distribution. 12 // * Neither the name of ARM Limited nor the names of its contributors may be 13 // used to endorse or promote products derived from this software without 14 // specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND 17 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 20 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 23 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27 #ifndef VIXL_EXAMPLES_NON_CONST_VISITOR_H_ 28 #define VIXL_EXAMPLES_NON_CONST_VISITOR_H_ 29 30 #include "aarch64/decoder-aarch64.h" 31 #include "aarch64/macro-assembler-aarch64.h" 32 33 class SwitchAddSubRegisterSources : public vixl::aarch64::DecoderVisitor { 34 public: SwitchAddSubRegisterSources()35 SwitchAddSubRegisterSources() 36 : vixl::aarch64::DecoderVisitor(kNonConstVisitor) {} 37 38 // Our visitor switches the register sources for some add and sub instructions 39 // (not all add and sub instructions). 40 41 virtual void Visit(vixl::aarch64::Metadata* metadata, 42 const vixl::aarch64::Instruction* instr) VIXL_OVERRIDE; 43 }; 44 45 46 void GenerateNonConstVisitorTestCode(vixl::aarch64::MacroAssembler* masm); 47 48 int64_t RunNonConstVisitorTestGeneratedCode( 49 const vixl::aarch64::Instruction* start_instr); 50 51 void ModifyNonConstVisitorTestGeneratedCode(vixl::aarch64::Instruction* start, 52 vixl::aarch64::Instruction* end); 53 54 55 #endif 56