1 // Copyright 2019, 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 #define TEST(name) TEST_(AARCH64_DISASM_##name) 28 29 #define SETUP_COMMON() \ 30 MacroAssembler masm; \ 31 masm.GetCPUFeatures()->Combine(CPUFeatures::All()); \ 32 Decoder decoder; \ 33 Disassembler disasm; \ 34 decoder.AppendVisitor(&disasm) 35 36 #ifdef VIXL_INCLUDE_SIMULATOR_AARCH64 37 // Run tests with the simulator. 38 #define SETUP() \ 39 SETUP_COMMON(); \ 40 masm.SetGenerateSimulatorCode(true) 41 42 #else // ifdef VIXL_INCLUDE_SIMULATOR_AARCH64. 43 #define SETUP() \ 44 SETUP_COMMON(); \ 45 masm.SetGenerateSimulatorCode(false) 46 47 #endif // ifdef VIXL_INCLUDE_SIMULATOR_AARCH64. 48 49 // A conservative limit for the size of the code that we generate in these 50 // tests. 51 #define MAX_SIZE_GENERATED 1024 52 53 #define DISASSEMBLE() \ 54 do { \ 55 printf("----\n"); \ 56 PrintDisassembler print_disasm(stdout); \ 57 Instruction* start = masm.GetBuffer()->GetStartAddress<Instruction*>(); \ 58 Instruction* end = masm.GetBuffer()->GetEndAddress<Instruction*>(); \ 59 print_disasm.DisassembleBuffer(start, end); \ 60 } while (0) 61 62 #define COMPARE(ASM, EXP) \ 63 do { \ 64 masm.Reset(); \ 65 { \ 66 ExactAssemblyScope guard(&masm, \ 67 MAX_SIZE_GENERATED, \ 68 ExactAssemblyScope::kMaximumSize); \ 69 masm.ASM; \ 70 } \ 71 masm.FinalizeCode(); \ 72 decoder.Decode(masm.GetBuffer()->GetStartAddress<Instruction*>()); \ 73 uint32_t encoding = *masm.GetBuffer()->GetStartAddress<uint32_t*>(); \ 74 if (strcmp(disasm.GetOutput(), EXP) != 0) { \ 75 printf("\nEncoding: %08" PRIx32 "\nExpected: %s\nFound: %s\n", \ 76 encoding, \ 77 EXP, \ 78 disasm.GetOutput()); \ 79 abort(); \ 80 } \ 81 if (Test::disassemble()) DISASSEMBLE(); \ 82 } while (0) 83 84 #define COMPARE_PREFIX(ASM, EXP) \ 85 do { \ 86 masm.Reset(); \ 87 { \ 88 ExactAssemblyScope guard(&masm, \ 89 MAX_SIZE_GENERATED, \ 90 ExactAssemblyScope::kMaximumSize); \ 91 masm.ASM; \ 92 } \ 93 masm.FinalizeCode(); \ 94 decoder.Decode(masm.GetBuffer()->GetStartAddress<Instruction*>()); \ 95 uint32_t encoding = *masm.GetBuffer()->GetStartAddress<uint32_t*>(); \ 96 if (strncmp(disasm.GetOutput(), EXP, strlen(EXP)) != 0) { \ 97 printf("\nEncoding: %08" PRIx32 "\nExpected: %s\nFound: %s\n", \ 98 encoding, \ 99 EXP, \ 100 disasm.GetOutput()); \ 101 abort(); \ 102 } \ 103 if (Test::disassemble()) DISASSEMBLE(); \ 104 } while (0) 105 106 #define COMPARE_MACRO_BASE(ASM, EXP) \ 107 masm.Reset(); \ 108 masm.ASM; \ 109 masm.FinalizeCode(); \ 110 std::string res; \ 111 \ 112 Instruction* instruction = \ 113 masm.GetBuffer()->GetStartAddress<Instruction*>(); \ 114 Instruction* end = masm.GetCursorAddress<Instruction*>(); \ 115 while (instruction != end) { \ 116 decoder.Decode(instruction); \ 117 res.append(disasm.GetOutput()); \ 118 instruction = instruction->GetNextInstruction(); \ 119 if (instruction != end) { \ 120 res.append("\n"); \ 121 } \ 122 } 123 124 #define COMPARE_MACRO(ASM, EXP) \ 125 do { \ 126 COMPARE_MACRO_BASE(ASM, EXP) \ 127 if (strcmp(res.c_str(), EXP) != 0) { \ 128 printf("Expected: %s\nFound: %s\n", EXP, res.c_str()); \ 129 abort(); \ 130 } \ 131 if (Test::disassemble()) DISASSEMBLE(); \ 132 } while (0) 133 134 #define COMPARE_MACRO_PREFIX(ASM, EXP) \ 135 do { \ 136 COMPARE_MACRO_BASE(ASM, EXP) \ 137 if (strncmp(res.c_str(), EXP, strlen(EXP)) != 0) { \ 138 printf("Expected (prefix): %s\nFound: %s\n", EXP, res.c_str()); \ 139 abort(); \ 140 } \ 141 if (Test::disassemble()) DISASSEMBLE(); \ 142 } while (0) 143 144 #define CLEANUP() 145