// Copyright 2012 the V8 project 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 Google Inc. 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 AND 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.
//
#include <stdlib.h>
#include "src/v8.h"
#include "src/debug.h"
#include "src/disasm.h"
#include "src/disassembler.h"
#include "src/macro-assembler.h"
#include "src/serialize.h"
#include "test/cctest/cctest.h"
using namespace v8::internal;
bool DisassembleAndCompare(byte* pc, const char* compare_string) {
disasm::NameConverter converter;
disasm::Disassembler disasm(converter);
EmbeddedVector<char, 128> disasm_buffer;
disasm.InstructionDecode(disasm_buffer, pc);
if (strcmp(compare_string, disasm_buffer.start()) != 0) {
fprintf(stderr,
"expected: \n"
"%s\n"
"disassembled: \n"
"%s\n\n",
compare_string, disasm_buffer.start());
return false;
}
return true;
}
// Set up V8 to a state where we can at least run the assembler and
// disassembler. Declare the variables and allocate the data structures used
// in the rest of the macros.
#define SET_UP() \
CcTest::InitializeVM(); \
Isolate* isolate = CcTest::i_isolate(); \
HandleScope scope(isolate); \
byte *buffer = reinterpret_cast<byte*>(malloc(4*1024)); \
Assembler assm(isolate, buffer, 4*1024); \
bool failure = false;
// This macro assembles one instruction using the preallocated assembler and
// disassembles the generated instruction, comparing the output to the expected
// value. If the comparison fails an error message is printed, but the test
// continues to run until the end.
#define COMPARE(asm_, compare_string) \
{ \
int pc_offset = assm.pc_offset(); \
byte *progcounter = &buffer[pc_offset]; \
assm.asm_; \
if (!DisassembleAndCompare(progcounter, compare_string)) failure = true; \
}
// Verify that all invocations of the COMPARE macro passed successfully.
// Exit with a failure if at least one of the tests failed.
#define VERIFY_RUN() \
if (failure) { \
V8_Fatal(__FILE__, __LINE__, "MIPS Disassembler tests failed.\n"); \
}
TEST(Type0) {
SET_UP();
COMPARE(addu(a0, a1, a2),
"00a62021 addu a0, a1, a2");
COMPARE(addu(t2, t3, t4),
"016c5021 addu t2, t3, t4");
COMPARE(addu(v0, v1, s0),
"00701021 addu v0, v1, s0");
COMPARE(subu(a0, a1, a2),
"00a62023 subu a0, a1, a2");
COMPARE(subu(t2, t3, t4),
"016c5023 subu t2, t3, t4");
COMPARE(subu(v0, v1, s0),
"00701023 subu v0, v1, s0");
if (!IsMipsArchVariant(kMips32r6)) {
COMPARE(mult(a0, a1),
"00850018 mult a0, a1");
COMPARE(mult(t2, t3),
"014b0018 mult t2, t3");
COMPARE(mult(v0, v1),
"00430018 mult v0, v1");
COMPARE(multu(a0, a1),
"00850019 multu a0, a1");
COMPARE(multu(t2, t3),
"014b0019 multu t2, t3");
COMPARE(multu(v0, v1),
"00430019 multu v0, v1");
COMPARE(div(a0, a1),
"0085001a div a0, a1");
COMPARE(div(t2, t3),
"014b001a div t2, t3");
COMPARE(div(v0, v1),
"0043001a div v0, v1");
COMPARE(divu(a0, a1),
"0085001b divu a0, a1");
COMPARE(divu(t2, t3),
"014b001b divu t2, t3");
COMPARE(divu(v0, v1),
"0043001b divu v0, v1");
if (!IsMipsArchVariant(kLoongson)) {
COMPARE(mul(a0, a1, a2),
"70a62002 mul a0, a1, a2");
COMPARE(mul(t2, t3, t4),
"716c5002 mul t2, t3, t4");
COMPARE(mul(v0, v1, s0),
"70701002 mul v0, v1, s0");
}
} else { // MIPS32r6.
COMPARE(mul(a0, a1, a2),
"00a62098 mul a0, a1, a2");
COMPARE(muh(a0, a1, a2),
"00a620d8 muh a0, a1, a2");
COMPARE(mul(t1, t2, t3),
"014b4898 mul t1, t2, t3");
COMPARE(muh(t1, t2, t3),
"014b48d8 muh t1, t2, t3");
COMPARE(mul(v0, v1, a0),
"00641098 mul v0, v1, a0");
COMPARE(muh(v0, v1, a0),
"006410d8 muh v0, v1, a0");
COMPARE(mulu(a0, a1, a2),
"00a62099 mulu a0, a1, a2");
COMPARE(muhu(a0, a1, a2),
"00a620d9 muhu a0, a1, a2");
COMPARE(mulu(t1, t2, t3),
"014b4899 mulu t1, t2, t3");
COMPARE(muhu(t1, t2, t3),
"014b48d9 muhu t1, t2, t3");
COMPARE(mulu(v0, v1, a0),
"00641099 mulu v0, v1, a0");
COMPARE(muhu(v0, v1, a0),
"006410d9 muhu v0, v1, a0");
COMPARE(div(a0, a1, a2),
"00a6209a div a0, a1, a2");
COMPARE(mod(a0, a1, a2),
"00a620da mod a0, a1, a2");
COMPARE(div(t1, t2, t3),
"014b489a div t1, t2, t3");
COMPARE(mod(t1, t2, t3),
"014b48da mod t1, t2, t3");
COMPARE(div(v0, v1, a0),
"0064109a div v0, v1, a0");
COMPARE(mod(v0, v1, a0),
"006410da mod v0, v1, a0");
COMPARE(divu(a0, a1, a2),
"00a6209b divu a0, a1, a2");
COMPARE(modu(a0, a1, a2),
"00a620db modu a0, a1, a2");
COMPARE(divu(t1, t2, t3),
"014b489b divu t1, t2, t3");
COMPARE(modu(t1, t2, t3),
"014b48db modu t1, t2, t3");
COMPARE(divu(v0, v1, a0),
"0064109b divu v0, v1, a0");
COMPARE(modu(v0, v1, a0),
"006410db modu v0, v1, a0");
COMPARE(bovc(a0, a0, static_cast<int16_t>(0)),
"20840000 bovc a0, a0, 0");
COMPARE(bovc(a1, a0, static_cast<int16_t>(0)),
"20a40000 bovc a1, a0, 0");
COMPARE(bovc(a1, a0, 32767),
"20a47fff bovc a1, a0, 32767");
COMPARE(bovc(a1, a0, -32768),
"20a48000 bovc a1, a0, -32768");
COMPARE(bnvc(a0, a0, static_cast<int16_t>(0)),
"60840000 bnvc a0, a0, 0");
COMPARE(bnvc(a1, a0, static_cast<int16_t>(0)),
"60a40000 bnvc a1, a0, 0");
COMPARE(bnvc(a1, a0, 32767),
"60a47fff bnvc a1, a0, 32767");
COMPARE(bnvc(a1, a0, -32768),
"60a48000 bnvc a1, a0, -32768");
COMPARE(beqzc(a0, 0),
"d8800000 beqzc a0, 0x0");
COMPARE(beqzc(a0, 0xfffff), // 0x0fffff == 1048575.
"d88fffff beqzc a0, 0xfffff");
COMPARE(beqzc(a0, 0x100000), // 0x100000 == -1048576.
"d8900000 beqzc a0, 0x100000");
COMPARE(bnezc(a0, 0),
"f8800000 bnezc a0, 0x0");
COMPARE(bnezc(a0, 0xfffff), // 0x0fffff == 1048575.
"f88fffff bnezc a0, 0xfffff");
COMPARE(bnezc(a0, 0x100000), // 0x100000 == -1048576.
"f8900000 bnezc a0, 0x100000");
}
COMPARE(addiu(a0, a1, 0x0),
"24a40000 addiu a0, a1, 0");
COMPARE(addiu(s0, s1, 32767),
"26307fff addiu s0, s1, 32767");
COMPARE(addiu(t2, t3, -32768),
"256a8000 addiu t2, t3, -32768");
COMPARE(addiu(v0, v1, -1),
"2462ffff addiu v0, v1, -1");
COMPARE(and_(a0, a1, a2),
"00a62024 and a0, a1, a2");
COMPARE(and_(s0, s1, s2),
"02328024 and s0, s1, s2");
COMPARE(and_(t2, t3, t4),
"016c5024 and t2, t3, t4");
COMPARE(and_(v0, v1, a2),
"00661024 and v0, v1, a2");
COMPARE(or_(a0, a1, a2),
"00a62025 or a0, a1, a2");
COMPARE(or_(s0, s1, s2),
"02328025 or s0, s1, s2");
COMPARE(or_(t2, t3, t4),
"016c5025 or t2, t3, t4");
COMPARE(or_(v0, v1, a2),
"00661025 or v0, v1, a2");
COMPARE(xor_(a0, a1, a2),
"00a62026 xor a0, a1, a2");
COMPARE(xor_(s0, s1, s2),
"02328026 xor s0, s1, s2");
COMPARE(xor_(t2, t3, t4),
"016c5026 xor t2, t3, t4");
COMPARE(xor_(v0, v1, a2),
"00661026 xor v0, v1, a2");
COMPARE(nor(a0, a1, a2),
"00a62027 nor a0, a1, a2");
COMPARE(nor(s0, s1, s2),
"02328027 nor s0, s1, s2");
COMPARE(nor(t2, t3, t4),
"016c5027 nor t2, t3, t4");
COMPARE(nor(v0, v1, a2),
"00661027 nor v0, v1, a2");
COMPARE(andi(a0, a1, 0x1),
"30a40001 andi a0, a1, 0x1");
COMPARE(andi(v0, v1, 0xffff),
"3062ffff andi v0, v1, 0xffff");
COMPARE(ori(a0, a1, 0x1),
"34a40001 ori a0, a1, 0x1");
COMPARE(ori(v0, v1, 0xffff),
"3462ffff ori v0, v1, 0xffff");
COMPARE(xori(a0, a1, 0x1),
"38a40001 xori a0, a1, 0x1");
COMPARE(xori(v0, v1, 0xffff),
"3862ffff xori v0, v1, 0xffff");
COMPARE(lui(a0, 0x1),
"3c040001 lui a0, 0x1");
COMPARE(lui(v0, 0xffff),
"3c02ffff lui v0, 0xffff");
COMPARE(sll(a0, a1, 0),
"00052000 sll a0, a1, 0");
COMPARE(sll(s0, s1, 8),
"00118200 sll s0, s1, 8");
COMPARE(sll(t2, t3, 24),
"000b5600 sll t2, t3, 24");
COMPARE(sll(v0, v1, 31),
"000317c0 sll v0, v1, 31");
COMPARE(sllv(a0, a1, a2),
"00c52004 sllv a0, a1, a2");
COMPARE(sllv(s0, s1, s2),
"02518004 sllv s0, s1, s2");
COMPARE(sllv(t2, t3, t4),
"018b5004 sllv t2, t3, t4");
COMPARE(sllv(v0, v1, fp),
"03c31004 sllv v0, v1, fp");
COMPARE(srl(a0, a1, 0),
"00052002 srl a0, a1, 0");
COMPARE(srl(s0, s1, 8),
"00118202 srl s0, s1, 8");
COMPARE(srl(t2, t3, 24),
"000b5602 srl t2, t3, 24");
COMPARE(srl(v0, v1, 31),
"000317c2 srl v0, v1, 31");
COMPARE(srlv(a0, a1, a2),
"00c52006 srlv a0, a1, a2");
COMPARE(srlv(s0, s1, s2),
"02518006 srlv s0, s1, s2");
COMPARE(srlv(t2, t3, t4),
"018b5006 srlv t2, t3, t4");
COMPARE(srlv(v0, v1, fp),
"03c31006 srlv v0, v1, fp");
COMPARE(sra(a0, a1, 0),
"00052003 sra a0, a1, 0");
COMPARE(sra(s0, s1, 8),
"00118203 sra s0, s1, 8");
COMPARE(sra(t2, t3, 24),
"000b5603 sra t2, t3, 24");
COMPARE(sra(v0, v1, 31),
"000317c3 sra v0, v1, 31");
COMPARE(srav(a0, a1, a2),
"00c52007 srav a0, a1, a2");
COMPARE(srav(s0, s1, s2),
"02518007 srav s0, s1, s2");
COMPARE(srav(t2, t3, t4),
"018b5007 srav t2, t3, t4");
COMPARE(srav(v0, v1, fp),
"03c31007 srav v0, v1, fp");
if (IsMipsArchVariant(kMips32r2)) {
COMPARE(rotr(a0, a1, 0),
"00252002 rotr a0, a1, 0");
COMPARE(rotr(s0, s1, 8),
"00318202 rotr s0, s1, 8");
COMPARE(rotr(t2, t3, 24),
"002b5602 rotr t2, t3, 24");
COMPARE(rotr(v0, v1, 31),
"002317c2 rotr v0, v1, 31");
COMPARE(rotrv(a0, a1, a2),
"00c52046 rotrv a0, a1, a2");
COMPARE(rotrv(s0, s1, s2),
"02518046 rotrv s0, s1, s2");
COMPARE(rotrv(t2, t3, t4),
"018b5046 rotrv t2, t3, t4");
COMPARE(rotrv(v0, v1, fp),
"03c31046 rotrv v0, v1, fp");
}
COMPARE(break_(0),
"0000000d break, code: 0x00000 (0)");
COMPARE(break_(261120),
"00ff000d break, code: 0x3fc00 (261120)");
COMPARE(break_(1047552),
"03ff000d break, code: 0xffc00 (1047552)");
COMPARE(tge(a0, a1, 0),
"00850030 tge a0, a1, code: 0x000");
COMPARE(tge(s0, s1, 1023),
"0211fff0 tge s0, s1, code: 0x3ff");
COMPARE(tgeu(a0, a1, 0),
"00850031 tgeu a0, a1, code: 0x000");
COMPARE(tgeu(s0, s1, 1023),
"0211fff1 tgeu s0, s1, code: 0x3ff");
COMPARE(tlt(a0, a1, 0),
"00850032 tlt a0, a1, code: 0x000");
COMPARE(tlt(s0, s1, 1023),
"0211fff2 tlt s0, s1, code: 0x3ff");
COMPARE(tltu(a0, a1, 0),
"00850033 tltu a0, a1, code: 0x000");
COMPARE(tltu(s0, s1, 1023),
"0211fff3 tltu s0, s1, code: 0x3ff");
COMPARE(teq(a0, a1, 0),
"00850034 teq a0, a1, code: 0x000");
COMPARE(teq(s0, s1, 1023),
"0211fff4 teq s0, s1, code: 0x3ff");
COMPARE(tne(a0, a1, 0),
"00850036 tne a0, a1, code: 0x000");
COMPARE(tne(s0, s1, 1023),
"0211fff6 tne s0, s1, code: 0x3ff");
COMPARE(mfhi(a0),
"00002010 mfhi a0");
COMPARE(mfhi(s2),
"00009010 mfhi s2");
COMPARE(mfhi(t4),
"00006010 mfhi t4");
COMPARE(mfhi(v1),
"00001810 mfhi v1");
COMPARE(mflo(a0),
"00002012 mflo a0");
COMPARE(mflo(s2),
"00009012 mflo s2");
COMPARE(mflo(t4),
"00006012 mflo t4");
COMPARE(mflo(v1),
"00001812 mflo v1");
COMPARE(slt(a0, a1, a2),
"00a6202a slt a0, a1, a2");
COMPARE(slt(s0, s1, s2),
"0232802a slt s0, s1, s2");
COMPARE(slt(t2, t3, t4),
"016c502a slt t2, t3, t4");
COMPARE(slt(v0, v1, a2),
"0066102a slt v0, v1, a2");
COMPARE(sltu(a0, a1, a2),
"00a6202b sltu a0, a1, a2");
COMPARE(sltu(s0, s1, s2),
"0232802b sltu s0, s1, s2");
COMPARE(sltu(t2, t3, t4),
"016c502b sltu t2, t3, t4");
COMPARE(sltu(v0, v1, a2),
"0066102b sltu v0, v1, a2");
COMPARE(slti(a0, a1, 0),
"28a40000 slti a0, a1, 0");
COMPARE(slti(s0, s1, 32767),
"2a307fff slti s0, s1, 32767");
COMPARE(slti(t2, t3, -32768),
"296a8000 slti t2, t3, -32768");
COMPARE(slti(v0, v1, -1),
"2862ffff slti v0, v1, -1");
COMPARE(sltiu(a0, a1, 0),
"2ca40000 sltiu a0, a1, 0");
COMPARE(sltiu(s0, s1, 32767),
"2e307fff sltiu s0, s1, 32767");
COMPARE(sltiu(t2, t3, -32768),
"2d6a8000 sltiu t2, t3, -32768");
COMPARE(sltiu(v0, v1, -1),
"2c62ffff sltiu v0, v1, -1");
if (!IsMipsArchVariant(kLoongson)) {
COMPARE(movz(a0, a1, a2),
"00a6200a movz a0, a1, a2");
COMPARE(movz(s0, s1, s2),
"0232800a movz s0, s1, s2");
COMPARE(movz(t2, t3, t4),
"016c500a movz t2, t3, t4");
COMPARE(movz(v0, v1, a2),
"0066100a movz v0, v1, a2");
COMPARE(movn(a0, a1, a2),
"00a6200b movn a0, a1, a2");
COMPARE(movn(s0, s1, s2),
"0232800b movn s0, s1, s2");
COMPARE(movn(t2, t3, t4),
"016c500b movn t2, t3, t4");
COMPARE(movn(v0, v1, a2),
"0066100b movn v0, v1, a2");
COMPARE(movt(a0, a1, 1),
"00a52001 movt a0, a1, 1");
COMPARE(movt(s0, s1, 2),
"02298001 movt s0, s1, 2");
COMPARE(movt(t2, t3, 3),
"016d5001 movt t2, t3, 3");
COMPARE(movt(v0, v1, 7),
"007d1001 movt v0, v1, 7");
COMPARE(movf(a0, a1, 0),
"00a02001 movf a0, a1, 0");
COMPARE(movf(s0, s1, 4),
"02308001 movf s0, s1, 4");
COMPARE(movf(t2, t3, 5),
"01745001 movf t2, t3, 5");
COMPARE(movf(v0, v1, 6),
"00781001 movf v0, v1, 6");
if (IsMipsArchVariant(kMips32r6)) {
COMPARE(clz(a0, a1),
"00a02050 clz a0, a1");
COMPARE(clz(s6, s7),
"02e0b050 clz s6, s7");
COMPARE(clz(v0, v1),
"00601050 clz v0, v1");
} else {
COMPARE(clz(a0, a1),
"70a42020 clz a0, a1");
COMPARE(clz(s6, s7),
"72f6b020 clz s6, s7");
COMPARE(clz(v0, v1),
"70621020 clz v0, v1");
}
}
if (IsMipsArchVariant(kMips32r2)) {
COMPARE(ins_(a0, a1, 31, 1),
"7ca4ffc4 ins a0, a1, 31, 1");
COMPARE(ins_(s6, s7, 30, 2),
"7ef6ff84 ins s6, s7, 30, 2");
COMPARE(ins_(v0, v1, 0, 32),
"7c62f804 ins v0, v1, 0, 32");
COMPARE(ext_(a0, a1, 31, 1),
"7ca407c0 ext a0, a1, 31, 1");
COMPARE(ext_(s6, s7, 30, 2),
"7ef60f80 ext s6, s7, 30, 2");
COMPARE(ext_(v0, v1, 0, 32),
"7c62f800 ext v0, v1, 0, 32");
}
VERIFY_RUN();
}