1 // Copyright 2011 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 // 28 29 #include <stdlib.h> 30 31 #include "src/v8.h" 32 33 #include "src/debug/debug.h" 34 #include "src/disasm.h" 35 #include "src/disassembler.h" 36 #include "src/macro-assembler.h" 37 #include "test/cctest/cctest.h" 38 39 using namespace v8::internal; 40 41 42 bool DisassembleAndCompare(byte* pc, const char* compare_string) { 43 disasm::NameConverter converter; 44 disasm::Disassembler disasm(converter); 45 EmbeddedVector<char, 128> disasm_buffer; 46 47 disasm.InstructionDecode(disasm_buffer, pc); 48 49 if (strcmp(compare_string, disasm_buffer.start()) != 0) { 50 fprintf(stderr, 51 "expected: \n" 52 "%s\n" 53 "disassembled: \n" 54 "%s\n\n", 55 compare_string, disasm_buffer.start()); 56 return false; 57 } 58 return true; 59 } 60 61 62 // Set up V8 to a state where we can at least run the assembler and 63 // disassembler. Declare the variables and allocate the data structures used 64 // in the rest of the macros. 65 #define SET_UP() \ 66 CcTest::InitializeVM(); \ 67 Isolate* isolate = CcTest::i_isolate(); \ 68 HandleScope scope(isolate); \ 69 byte* buffer = reinterpret_cast<byte*>(malloc(4 * 1024)); \ 70 Assembler assm(isolate, buffer, 4 * 1024); \ 71 bool failure = false; 72 73 74 // This macro assembles one instruction using the preallocated assembler and 75 // disassembles the generated instruction, comparing the output to the expected 76 // value. If the comparison fails an error message is printed, but the test 77 // continues to run until the end. 78 #define COMPARE(asm_, compare_string) \ 79 { \ 80 int pc_offset = assm.pc_offset(); \ 81 byte* progcounter = &buffer[pc_offset]; \ 82 assm.asm_; \ 83 if (!DisassembleAndCompare(progcounter, compare_string)) failure = true; \ 84 } 85 86 // Force emission of any pending literals into a pool. 87 #define EMIT_PENDING_LITERALS() assm.CheckConstPool(true, false) 88 89 90 // Verify that all invocations of the COMPARE macro passed successfully. 91 // Exit with a failure if at least one of the tests failed. 92 #define VERIFY_RUN() \ 93 if (failure) { \ 94 V8_Fatal(__FILE__, __LINE__, "PPC Disassembler tests failed.\n"); \ 95 } 96 97 TEST(DisasmPPC) { 98 SET_UP(); 99 100 COMPARE(addc(r9, r7, r9), "7d274814 addc r9, r7, r9"); 101 COMPARE(addic(r3, r5, Operand(20)), "30650014 addic r3, r5, 20"); 102 COMPARE(addi(r0, ip, Operand(63)), "380c003f addi r0, ip, 63"); 103 COMPARE(add(r5, r7, r0), "7ca70214 add r5, r7, r0"); 104 COMPARE(addze(r0, r0, LeaveOE, SetRC), "7c000195 addze. r0, r0"); 105 COMPARE(andi(r0, r3, Operand(4)), "70600004 andi. r0, r3, 4"); 106 COMPARE(and_(r3, r6, r5), "7cc32838 and r3, r6, r5"); 107 COMPARE(and_(r6, r0, r6, SetRC), "7c063039 and. r6, r0, r6"); 108 // skipping branches (for now?) 109 COMPARE(bctr(), "4e800420 bctr"); 110 COMPARE(bctrl(), "4e800421 bctrl"); 111 COMPARE(blr(), "4e800020 blr"); 112 // skipping call - only used in simulator 113 #if V8_TARGET_ARCH_PPC64 114 COMPARE(cmpi(r0, Operand(5)), "2fa00005 cmpi r0, 5"); 115 #else 116 COMPARE(cmpi(r0, Operand(5)), "2f800005 cmpi r0, 5"); 117 #endif 118 #if V8_TARGET_ARCH_PPC64 119 COMPARE(cmpl(r6, r7), "7fa63840 cmpl r6, r7"); 120 #else 121 COMPARE(cmpl(r6, r7), "7f863840 cmpl r6, r7"); 122 #endif 123 #if V8_TARGET_ARCH_PPC64 124 COMPARE(cmp(r5, r11), "7fa55800 cmp r5, r11"); 125 #else 126 COMPARE(cmp(r5, r11), "7f855800 cmp r5, r11"); 127 #endif 128 // skipping crxor - incomplete disassembly 129 COMPARE(lbz(r4, MemOperand(r4, 7)), "88840007 lbz r4, 7(r4)"); 130 COMPARE(lfd(d0, MemOperand(sp, 128)), "c8010080 lfd d0, 128(sp)"); 131 COMPARE(li(r0, Operand(16)), "38000010 li r0, 16"); 132 COMPARE(lis(r8, Operand(22560)), "3d005820 lis r8, 22560"); 133 COMPARE(lwz(ip, MemOperand(r19, 44)), "8193002c lwz ip, 44(r19)"); 134 COMPARE(lwzx(r0, MemOperand(r5, ip)), "7c05602e lwzx r0, r5, ip"); 135 COMPARE(mflr(r0), "7c0802a6 mflr r0"); 136 COMPARE(mr(r15, r4), "7c8f2378 mr r15, r4"); 137 COMPARE(mtctr(r0), "7c0903a6 mtctr r0"); 138 COMPARE(mtlr(r15), "7de803a6 mtlr r15"); 139 COMPARE(ori(r8, r8, Operand(42849)), "6108a761 ori r8, r8, 42849"); 140 COMPARE(orx(r5, r3, r4), "7c652378 or r5, r3, r4"); 141 COMPARE(rlwinm(r4, r3, 2, 0, 29), "5464103a rlwinm r4, r3, 2, 0, 29"); 142 COMPARE(rlwinm(r0, r3, 0, 31, 31, SetRC), 143 "546007ff rlwinm. r0, r3, 0, 31, 31"); 144 COMPARE(srawi(r3, r6, 1), "7cc30e70 srawi r3,r6,1"); 145 COMPARE(stb(r5, MemOperand(r11, 11)), "98ab000b stb r5, 11(r11)"); 146 COMPARE(stfd(d2, MemOperand(sp, 8)), "d8410008 stfd d2, 8(sp)"); 147 COMPARE(stw(r16, MemOperand(sp, 64)), "92010040 stw r16, 64(sp)"); 148 COMPARE(stwu(r3, MemOperand(sp, -4)), "9461fffc stwu r3, -4(sp)"); 149 COMPARE(sub(r3, r3, r4), "7c641850 subf r3, r4, r3"); 150 COMPARE(sub(r0, r9, r8, LeaveOE, SetRC), "7c084851 subf. r0, r8, r9"); 151 COMPARE(xor_(r6, r5, r4), "7ca62278 xor r6, r5, r4"); 152 153 VERIFY_RUN(); 154 } 155
