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path: root/deps/v8/src/execution/loong64/simulator-loong64.cc
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Diffstat (limited to 'deps/v8/src/execution/loong64/simulator-loong64.cc')
-rw-r--r--deps/v8/src/execution/loong64/simulator-loong64.cc104
1 files changed, 46 insertions, 58 deletions
diff --git a/deps/v8/src/execution/loong64/simulator-loong64.cc b/deps/v8/src/execution/loong64/simulator-loong64.cc
index 9e5f13b1e1..7c1e4b1d8f 100644
--- a/deps/v8/src/execution/loong64/simulator-loong64.cc
+++ b/deps/v8/src/execution/loong64/simulator-loong64.cc
@@ -284,6 +284,10 @@ void Loong64Debugger::PrintAllRegsIncludingFPU() {
}
void Loong64Debugger::Debug() {
+ if (v8_flags.correctness_fuzzer_suppressions) {
+ PrintF("Debugger disabled for differential fuzzing.\n");
+ return;
+ }
intptr_t last_pc = -1;
bool done = false;
@@ -1723,7 +1727,7 @@ void Simulator::WriteW(int64_t addr, int32_t value, Instruction* instr) {
}
void Simulator::WriteConditionalW(int64_t addr, int32_t value,
- Instruction* instr, int32_t rk_reg) {
+ Instruction* instr, int32_t* done) {
if (addr >= 0 && addr < 0x400) {
// This has to be a nullptr-dereference, drop into debugger.
PrintF("Memory write to bad address: 0x%08" PRIx64 " , pc=0x%08" PRIxPTR
@@ -1741,9 +1745,9 @@ void Simulator::WriteConditionalW(int64_t addr, int32_t value,
TraceMemWr(addr, value, WORD);
int* ptr = reinterpret_cast<int*>(addr);
*ptr = value;
- set_register(rk_reg, 1);
+ *done = 1;
} else {
- set_register(rk_reg, 0);
+ *done = 0;
}
return;
}
@@ -1797,7 +1801,7 @@ void Simulator::Write2W(int64_t addr, int64_t value, Instruction* instr) {
}
void Simulator::WriteConditional2W(int64_t addr, int64_t value,
- Instruction* instr, int32_t rk_reg) {
+ Instruction* instr, int32_t* done) {
if (addr >= 0 && addr < 0x400) {
// This has to be a nullptr-dereference, drop into debugger.
PrintF("Memory write to bad address: 0x%08" PRIx64 " , pc=0x%08" PRIxPTR
@@ -1816,9 +1820,9 @@ void Simulator::WriteConditional2W(int64_t addr, int64_t value,
TraceMemWr(addr, value, DWORD);
int64_t* ptr = reinterpret_cast<int64_t*>(addr);
*ptr = value;
- set_register(rk_reg, 1);
+ *done = 1;
} else {
- set_register(rk_reg, 0);
+ *done = 0;
}
return;
}
@@ -2867,8 +2871,10 @@ void Simulator::DecodeTypeOp8() {
Registers::Name(rd_reg()), rd(), Registers::Name(rj_reg()),
rj(), si14_se);
addr = si14_se + rj();
+ int32_t LLbit = 0;
WriteConditionalW(addr, static_cast<int32_t>(rd()), instr_.instr(),
- rd_reg());
+ &LLbit);
+ set_register(rd_reg(), LLbit);
break;
}
case LL_D: {
@@ -2888,7 +2894,9 @@ void Simulator::DecodeTypeOp8() {
Registers::Name(rd_reg()), rd(), Registers::Name(rj_reg()),
rj(), si14_se);
addr = si14_se + rj();
- WriteConditional2W(addr, rd(), instr_.instr(), rd_reg());
+ int32_t LLbit = 0;
+ WriteConditional2W(addr, rd(), instr_.instr(), &LLbit);
+ set_register(rd_reg(), LLbit);
break;
}
default:
@@ -4174,7 +4182,7 @@ void Simulator::DecodeTypeOp17() {
printf_instr("AMSWAP_DB_W:\t %s: %016lx, %s, %016lx, %s, %016lx\n",
Registers::Name(rd_reg()), rd(), Registers::Name(rk_reg()),
rk(), Registers::Name(rj_reg()), rj());
- int32_t rdvalue;
+ int32_t success = 0;
do {
{
base::MutexGuard lock_guard(&GlobalMonitor::Get()->mutex);
@@ -4183,17 +4191,15 @@ void Simulator::DecodeTypeOp17() {
GlobalMonitor::Get()->NotifyLoadLinked_Locked(
rj(), &global_monitor_thread_);
}
- rdvalue = get_register(rd_reg());
WriteConditionalW(rj(), static_cast<int32_t>(rk()), instr_.instr(),
- rd_reg());
- } while (!get_register(rd_reg()));
- set_register(rd_reg(), rdvalue);
+ &success);
+ } while (!success);
} break;
case AMSWAP_DB_D: {
printf_instr("AMSWAP_DB_D:\t %s: %016lx, %s, %016lx, %s, %016lx\n",
Registers::Name(rd_reg()), rd(), Registers::Name(rk_reg()),
rk(), Registers::Name(rj_reg()), rj());
- int64_t rdvalue;
+ int32_t success = 0;
do {
{
base::MutexGuard lock_guard(&GlobalMonitor::Get()->mutex);
@@ -4202,16 +4208,14 @@ void Simulator::DecodeTypeOp17() {
GlobalMonitor::Get()->NotifyLoadLinked_Locked(
rj(), &global_monitor_thread_);
}
- rdvalue = get_register(rd_reg());
- WriteConditional2W(rj(), rk(), instr_.instr(), rd_reg());
- } while (!get_register(rd_reg()));
- set_register(rd_reg(), rdvalue);
+ WriteConditional2W(rj(), rk(), instr_.instr(), &success);
+ } while (!success);
} break;
case AMADD_DB_W: {
printf_instr("AMADD_DB_W:\t %s: %016lx, %s, %016lx, %s, %016lx\n",
Registers::Name(rd_reg()), rd(), Registers::Name(rk_reg()),
rk(), Registers::Name(rj_reg()), rj());
- int32_t rdvalue;
+ int32_t success = 0;
do {
{
base::MutexGuard lock_guard(&GlobalMonitor::Get()->mutex);
@@ -4220,19 +4224,17 @@ void Simulator::DecodeTypeOp17() {
GlobalMonitor::Get()->NotifyLoadLinked_Locked(
rj(), &global_monitor_thread_);
}
- rdvalue = get_register(rd_reg());
WriteConditionalW(rj(),
static_cast<int32_t>(static_cast<int32_t>(rk()) +
static_cast<int32_t>(rd())),
- instr_.instr(), rd_reg());
- } while (!get_register(rd_reg()));
- set_register(rd_reg(), rdvalue);
+ instr_.instr(), &success);
+ } while (!success);
} break;
case AMADD_DB_D: {
printf_instr("AMADD_DB_D:\t %s: %016lx, %s, %016lx, %s, %016lx\n",
Registers::Name(rd_reg()), rd(), Registers::Name(rk_reg()),
rk(), Registers::Name(rj_reg()), rj());
- int64_t rdvalue;
+ int32_t success = 0;
do {
{
base::MutexGuard lock_guard(&GlobalMonitor::Get()->mutex);
@@ -4241,16 +4243,14 @@ void Simulator::DecodeTypeOp17() {
GlobalMonitor::Get()->NotifyLoadLinked_Locked(
rj(), &global_monitor_thread_);
}
- rdvalue = get_register(rd_reg());
- WriteConditional2W(rj(), rk() + rd(), instr_.instr(), rd_reg());
- } while (!get_register(rd_reg()));
- set_register(rd_reg(), rdvalue);
+ WriteConditional2W(rj(), rk() + rd(), instr_.instr(), &success);
+ } while (!success);
} break;
case AMAND_DB_W: {
printf_instr("AMAND_DB_W:\t %s: %016lx, %s, %016lx, %s, %016lx\n",
Registers::Name(rd_reg()), rd(), Registers::Name(rk_reg()),
rk(), Registers::Name(rj_reg()), rj());
- int32_t rdvalue;
+ int32_t success = 0;
do {
{
base::MutexGuard lock_guard(&GlobalMonitor::Get()->mutex);
@@ -4259,19 +4259,17 @@ void Simulator::DecodeTypeOp17() {
GlobalMonitor::Get()->NotifyLoadLinked_Locked(
rj(), &global_monitor_thread_);
}
- rdvalue = get_register(rd_reg());
WriteConditionalW(rj(),
static_cast<int32_t>(static_cast<int32_t>(rk()) &
static_cast<int32_t>(rd())),
- instr_.instr(), rd_reg());
- } while (!get_register(rd_reg()));
- set_register(rd_reg(), rdvalue);
+ instr_.instr(), &success);
+ } while (!success);
} break;
case AMAND_DB_D: {
printf_instr("AMAND_DB_D:\t %s: %016lx, %s, %016lx, %s, %016lx\n",
Registers::Name(rd_reg()), rd(), Registers::Name(rk_reg()),
rk(), Registers::Name(rj_reg()), rj());
- int64_t rdvalue;
+ int32_t success = 0;
do {
{
base::MutexGuard lock_guard(&GlobalMonitor::Get()->mutex);
@@ -4280,16 +4278,14 @@ void Simulator::DecodeTypeOp17() {
GlobalMonitor::Get()->NotifyLoadLinked_Locked(
rj(), &global_monitor_thread_);
}
- rdvalue = get_register(rd_reg());
- WriteConditional2W(rj(), rk() & rd(), instr_.instr(), rd_reg());
- } while (!get_register(rd_reg()));
- set_register(rd_reg(), rdvalue);
+ WriteConditional2W(rj(), rk() & rd(), instr_.instr(), &success);
+ } while (!success);
} break;
case AMOR_DB_W: {
printf_instr("AMOR_DB_W:\t %s: %016lx, %s, %016lx, %s, %016lx\n",
Registers::Name(rd_reg()), rd(), Registers::Name(rk_reg()),
rk(), Registers::Name(rj_reg()), rj());
- int32_t rdvalue;
+ int32_t success = 0;
do {
{
base::MutexGuard lock_guard(&GlobalMonitor::Get()->mutex);
@@ -4298,19 +4294,17 @@ void Simulator::DecodeTypeOp17() {
GlobalMonitor::Get()->NotifyLoadLinked_Locked(
rj(), &global_monitor_thread_);
}
- rdvalue = get_register(rd_reg());
WriteConditionalW(rj(),
static_cast<int32_t>(static_cast<int32_t>(rk()) |
static_cast<int32_t>(rd())),
- instr_.instr(), rd_reg());
- } while (!get_register(rd_reg()));
- set_register(rd_reg(), rdvalue);
+ instr_.instr(), &success);
+ } while (!success);
} break;
case AMOR_DB_D: {
printf_instr("AMOR_DB_D:\t %s: %016lx, %s, %016lx, %s, %016lx\n",
Registers::Name(rd_reg()), rd(), Registers::Name(rk_reg()),
rk(), Registers::Name(rj_reg()), rj());
- int64_t rdvalue;
+ int32_t success = 0;
do {
{
base::MutexGuard lock_guard(&GlobalMonitor::Get()->mutex);
@@ -4319,16 +4313,14 @@ void Simulator::DecodeTypeOp17() {
GlobalMonitor::Get()->NotifyLoadLinked_Locked(
rj(), &global_monitor_thread_);
}
- rdvalue = get_register(rd_reg());
- WriteConditional2W(rj(), rk() | rd(), instr_.instr(), rd_reg());
- } while (!get_register(rd_reg()));
- set_register(rd_reg(), rdvalue);
+ WriteConditional2W(rj(), rk() | rd(), instr_.instr(), &success);
+ } while (!success);
} break;
case AMXOR_DB_W: {
printf_instr("AMXOR_DB_W:\t %s: %016lx, %s, %016lx, %s, %016lx\n",
Registers::Name(rd_reg()), rd(), Registers::Name(rk_reg()),
rk(), Registers::Name(rj_reg()), rj());
- int32_t rdvalue;
+ int32_t success = 0;
do {
{
base::MutexGuard lock_guard(&GlobalMonitor::Get()->mutex);
@@ -4337,19 +4329,17 @@ void Simulator::DecodeTypeOp17() {
GlobalMonitor::Get()->NotifyLoadLinked_Locked(
rj(), &global_monitor_thread_);
}
- rdvalue = get_register(rd_reg());
WriteConditionalW(rj(),
static_cast<int32_t>(static_cast<int32_t>(rk()) ^
static_cast<int32_t>(rd())),
- instr_.instr(), rd_reg());
- } while (!get_register(rd_reg()));
- set_register(rd_reg(), rdvalue);
+ instr_.instr(), &success);
+ } while (!success);
} break;
case AMXOR_DB_D: {
printf_instr("AMXOR_DB_D:\t %s: %016lx, %s, %016lx, %s, %016lx\n",
Registers::Name(rd_reg()), rd(), Registers::Name(rk_reg()),
rk(), Registers::Name(rj_reg()), rj());
- int64_t rdvalue;
+ int32_t success = 0;
do {
{
base::MutexGuard lock_guard(&GlobalMonitor::Get()->mutex);
@@ -4358,10 +4348,8 @@ void Simulator::DecodeTypeOp17() {
GlobalMonitor::Get()->NotifyLoadLinked_Locked(
rj(), &global_monitor_thread_);
}
- rdvalue = get_register(rd_reg());
- WriteConditional2W(rj(), rk() ^ rd(), instr_.instr(), rd_reg());
- } while (!get_register(rd_reg()));
- set_register(rd_reg(), rdvalue);
+ WriteConditional2W(rj(), rk() ^ rd(), instr_.instr(), &success);
+ } while (!success);
} break;
case AMMAX_DB_W:
printf("Sim UNIMPLEMENTED: AMMAX_DB_W\n");
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