AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity
a782e93c61
v8/test/cctest/compiler/test-simplified-lowering.cc
mlippautz a782e93c61 Revert of [turbofan] Restore basic write barrier elimination. (patchset #2 id:20001 of https://codereview.chromium.org/1938993002/ ) 
Reason for revert:
Breaks WBs that should be there ;)

https://uberchromegw.corp.google.com/i/client.v8/builders/V8%20Linux%20-%20gc%20stress/builds/3305

Will open repro bug asap.

Original issue's description:
> [turbofan] Restore basic write barrier elimination.
>
> Restore the basic write barrier elimination that we used to run as part
> of the simplified lowering phase (in ChangeLowering actually) before, by
> moving the write barrier computation to SimplifiedLowering where we can
> still look at types and consider the heap/isolate, and just update the
> WriteBarrierKind in the FieldAccess/ElementAccess that we later use when
> lowering to a machine Load/Store.
>
> CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel
> R=mstarzinger@chromium.org
> BUG=v8:4969,chromium:608636
> LOG=n
>
> Committed: https://crrev.com/7dcb6ad379fbacbc8bdc8e11a6e50d680ffa3f62
> Cr-Commit-Position: refs/heads/master@{#35969}

TBR=mstarzinger@chromium.org,bmeurer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4969,chromium:608636

Review-Url: https://codereview.chromium.org/1943743003
Cr-Commit-Position: refs/heads/master@{#35983}
2016-05-03 13:45:30 +00:00

1949 lines
67 KiB
C++
Raw Blame History

// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <limits>
#include "src/ast/scopes.h"
#include "src/compiler/access-builder.h"
#include "src/compiler/change-lowering.h"
#include "src/compiler/control-builders.h"
#include "src/compiler/effect-control-linearizer.h"
#include "src/compiler/graph-reducer.h"
#include "src/compiler/graph-visualizer.h"
#include "src/compiler/node-properties.h"
#include "src/compiler/pipeline.h"
#include "src/compiler/representation-change.h"
#include "src/compiler/scheduler.h"
#include "src/compiler/simplified-lowering.h"
#include "src/compiler/source-position.h"
#include "src/compiler/typer.h"
#include "src/compiler/verifier.h"
#include "src/execution.h"
#include "src/parsing/parser.h"
#include "src/parsing/rewriter.h"
#include "test/cctest/cctest.h"
#include "test/cctest/compiler/codegen-tester.h"
#include "test/cctest/compiler/function-tester.h"
#include "test/cctest/compiler/graph-builder-tester.h"
#include "test/cctest/compiler/value-helper.h"
namespace v8 {
namespace internal {
namespace compiler {
template <typename ReturnType>
class SimplifiedLoweringTester : public GraphBuilderTester<ReturnType> {
public:
SimplifiedLoweringTester(MachineType p0 = MachineType::None(),
MachineType p1 = MachineType::None())
: GraphBuilderTester<ReturnType>(p0, p1),
typer(this->isolate(), this->graph()),
javascript(this->zone()),
jsgraph(this->isolate(), this->graph(), this->common(), &javascript,
this->simplified(), this->machine()),
source_positions(jsgraph.graph()),
lowering(&jsgraph, this->zone(), &source_positions) {}
Typer typer;
JSOperatorBuilder javascript;
JSGraph jsgraph;
SourcePositionTable source_positions;
SimplifiedLowering lowering;
void LowerAllNodes() {
this->End();
typer.Run();
lowering.LowerAllNodes();
}
void LowerAllNodesAndLowerChanges() {
this->End();
typer.Run();
lowering.LowerAllNodes();
Schedule* schedule = Scheduler::ComputeSchedule(this->zone(), this->graph(),
Scheduler::kNoFlags);
EffectControlLinearizer linearizer(&jsgraph, schedule, this->zone());
linearizer.Run();
ChangeLowering lowering(&jsgraph);
GraphReducer reducer(this->zone(), this->graph());
reducer.AddReducer(&lowering);
reducer.ReduceGraph();
Verifier::Run(this->graph());
}
void CheckNumberCall(double expected, double input) {
// TODO(titzer): make calls to NewNumber work in cctests.
if (expected <= Smi::kMinValue) return;
if (expected >= Smi::kMaxValue) return;
Handle<Object> num = factory()->NewNumber(input);
Object* result = this->Call(*num);
CHECK(factory()->NewNumber(expected)->SameValue(result));
}
template <typename T>
T* CallWithPotentialGC() {
// TODO(titzer): we wrap the code in a JSFunction here to reuse the
// JSEntryStub; that could be done with a special prologue or other stub.
Handle<JSFunction> fun = FunctionTester::ForMachineGraph(this->graph(), 0);
Handle<Object>* args = NULL;
MaybeHandle<Object> result = Execution::Call(
this->isolate(), fun, factory()->undefined_value(), 0, args);
return T::cast(*result.ToHandleChecked());
}
Factory* factory() { return this->isolate()->factory(); }
Heap* heap() { return this->isolate()->heap(); }
};
// TODO(titzer): factor these tests out to test-run-simplifiedops.cc.
// TODO(titzer): test tagged representation for input to NumberToInt32.
TEST(RunNumberToInt32_float64) {
// TODO(titzer): explicit load/stores here are only because of representations
double input;
int32_t result;
SimplifiedLoweringTester<Object*> t;
FieldAccess load = {kUntaggedBase, 0, Handle<Name>(), Type::Number(),
MachineType::Float64()};
Node* loaded = t.LoadField(load, t.PointerConstant(&input));
NodeProperties::SetType(loaded, Type::Number());
Node* convert = t.NumberToInt32(loaded);
FieldAccess store = {kUntaggedBase, 0, Handle<Name>(), Type::Signed32(),
MachineType::Int32()};
t.StoreField(store, t.PointerConstant(&result), convert);
t.Return(t.jsgraph.TrueConstant());
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
FOR_FLOAT64_INPUTS(i) {
input = *i;
int32_t expected = DoubleToInt32(*i);
t.Call();
CHECK_EQ(expected, result);
}
}
// TODO(titzer): test tagged representation for input to NumberToUint32.
TEST(RunNumberToUint32_float64) {
// TODO(titzer): explicit load/stores here are only because of representations
double input;
uint32_t result;
SimplifiedLoweringTester<Object*> t;
FieldAccess load = {kUntaggedBase, 0, Handle<Name>(), Type::Number(),
MachineType::Float64()};
Node* loaded = t.LoadField(load, t.PointerConstant(&input));
NodeProperties::SetType(loaded, Type::Number());
Node* convert = t.NumberToUint32(loaded);
FieldAccess store = {kUntaggedBase, 0, Handle<Name>(), Type::Unsigned32(),
MachineType::Uint32()};
t.StoreField(store, t.PointerConstant(&result), convert);
t.Return(t.jsgraph.TrueConstant());
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
FOR_FLOAT64_INPUTS(i) {
input = *i;
uint32_t expected = DoubleToUint32(*i);
t.Call();
CHECK_EQ(static_cast<int32_t>(expected), static_cast<int32_t>(result));
}
}
// Create a simple JSObject with a unique map.
static Handle<JSObject> TestObject() {
static int index = 0;
char buffer[50];
v8::base::OS::SNPrintF(buffer, 50, "({'a_%d':1})", index++);
return Handle<JSObject>::cast(v8::Utils::OpenHandle(*CompileRun(buffer)));
}
TEST(RunLoadMap) {
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
FieldAccess access = AccessBuilder::ForMap();
Node* load = t.LoadField(access, t.Parameter(0));
t.Return(load);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
Handle<JSObject> src = TestObject();
Handle<Map> src_map(src->map());
Object* result = t.Call(*src); // TODO(titzer): raw pointers in call
CHECK_EQ(*src_map, result);
}
TEST(RunStoreMap) {
SimplifiedLoweringTester<int32_t> t(MachineType::AnyTagged(),
MachineType::AnyTagged());
FieldAccess access = AccessBuilder::ForMap();
t.StoreField(access, t.Parameter(1), t.Parameter(0));
t.Return(t.jsgraph.TrueConstant());
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
Handle<JSObject> src = TestObject();
Handle<Map> src_map(src->map());
Handle<JSObject> dst = TestObject();
CHECK(src->map() != dst->map());
t.Call(*src_map, *dst); // TODO(titzer): raw pointers in call
CHECK(*src_map == dst->map());
}
TEST(RunLoadProperties) {
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
FieldAccess access = AccessBuilder::ForJSObjectProperties();
Node* load = t.LoadField(access, t.Parameter(0));
t.Return(load);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
Handle<JSObject> src = TestObject();
Handle<FixedArray> src_props(src->properties());
Object* result = t.Call(*src); // TODO(titzer): raw pointers in call
CHECK_EQ(*src_props, result);
}
TEST(RunLoadStoreMap) {
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged(),
MachineType::AnyTagged());
FieldAccess access = AccessBuilder::ForMap();
Node* load = t.LoadField(access, t.Parameter(0));
t.StoreField(access, t.Parameter(1), load);
t.Return(load);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
Handle<JSObject> src = TestObject();
Handle<Map> src_map(src->map());
Handle<JSObject> dst = TestObject();
CHECK(src->map() != dst->map());
Object* result = t.Call(*src, *dst); // TODO(titzer): raw pointers in call
CHECK(result->IsMap());
CHECK_EQ(*src_map, result);
CHECK(*src_map == dst->map());
}
TEST(RunLoadStoreFixedArrayIndex) {
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
ElementAccess access = AccessBuilder::ForFixedArrayElement();
Node* load = t.LoadElement(access, t.Parameter(0), t.Int32Constant(0));
t.StoreElement(access, t.Parameter(0), t.Int32Constant(1), load);
t.Return(load);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
Handle<FixedArray> array = t.factory()->NewFixedArray(2);
Handle<JSObject> src = TestObject();
Handle<JSObject> dst = TestObject();
array->set(0, *src);
array->set(1, *dst);
Object* result = t.Call(*array);
CHECK_EQ(*src, result);
CHECK_EQ(*src, array->get(0));
CHECK_EQ(*src, array->get(1));
}
TEST(RunLoadStoreArrayBuffer) {
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
const int index = 12;
const int array_length = 2 * index;
ElementAccess buffer_access =
AccessBuilder::ForTypedArrayElement(kExternalInt8Array, true);
Node* backing_store = t.LoadField(
AccessBuilder::ForJSArrayBufferBackingStore(), t.Parameter(0));
Node* load =
t.LoadElement(buffer_access, backing_store, t.Int32Constant(index));
t.StoreElement(buffer_access, backing_store, t.Int32Constant(index + 1),
load);
t.Return(t.jsgraph.TrueConstant());
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
Handle<JSArrayBuffer> array = t.factory()->NewJSArrayBuffer();
JSArrayBuffer::SetupAllocatingData(array, t.isolate(), array_length);
uint8_t* data = reinterpret_cast<uint8_t*>(array->backing_store());
for (int i = 0; i < array_length; i++) {
data[i] = i;
}
// TODO(titzer): raw pointers in call
Object* result = t.Call(*array);
CHECK_EQ(t.isolate()->heap()->true_value(), result);
for (int i = 0; i < array_length; i++) {
uint8_t expected = i;
if (i == (index + 1)) expected = index;
CHECK_EQ(data[i], expected);
}
}
TEST(RunLoadFieldFromUntaggedBase) {
Smi* smis[] = {Smi::FromInt(1), Smi::FromInt(2), Smi::FromInt(3)};
for (size_t i = 0; i < arraysize(smis); i++) {
int offset = static_cast<int>(i * sizeof(Smi*));
FieldAccess access = {kUntaggedBase, offset, Handle<Name>(),
Type::Integral32(), MachineType::AnyTagged()};
SimplifiedLoweringTester<Object*> t;
Node* load = t.LoadField(access, t.PointerConstant(smis));
t.Return(load);
t.LowerAllNodesAndLowerChanges();
for (int j = -5; j <= 5; j++) {
Smi* expected = Smi::FromInt(j);
smis[i] = expected;
CHECK_EQ(expected, t.Call());
}
}
}
TEST(RunStoreFieldToUntaggedBase) {
Smi* smis[] = {Smi::FromInt(1), Smi::FromInt(2), Smi::FromInt(3)};
for (size_t i = 0; i < arraysize(smis); i++) {
int offset = static_cast<int>(i * sizeof(Smi*));
FieldAccess access = {kUntaggedBase, offset, Handle<Name>(),
Type::Integral32(), MachineType::AnyTagged()};
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
Node* p0 = t.Parameter(0);
t.StoreField(access, t.PointerConstant(smis), p0);
t.Return(p0);
t.LowerAllNodesAndLowerChanges();
for (int j = -5; j <= 5; j++) {
Smi* expected = Smi::FromInt(j);
smis[i] = Smi::FromInt(-100);
CHECK_EQ(expected, t.Call(expected));
CHECK_EQ(expected, smis[i]);
}
}
}
TEST(RunLoadElementFromUntaggedBase) {
Smi* smis[] = {Smi::FromInt(1), Smi::FromInt(2), Smi::FromInt(3),
Smi::FromInt(4), Smi::FromInt(5)};
for (size_t i = 0; i < arraysize(smis); i++) { // for header sizes
for (size_t j = 0; (i + j) < arraysize(smis); j++) { // for element index
int offset = static_cast<int>(i * sizeof(Smi*));
ElementAccess access = {kUntaggedBase, offset, Type::Integral32(),
MachineType::AnyTagged()};
SimplifiedLoweringTester<Object*> t;
Node* load = t.LoadElement(access, t.PointerConstant(smis),
t.Int32Constant(static_cast<int>(j)));
t.Return(load);
t.LowerAllNodesAndLowerChanges();
for (int k = -5; k <= 5; k++) {
Smi* expected = Smi::FromInt(k);
smis[i + j] = expected;
CHECK_EQ(expected, t.Call());
}
}
}
}
TEST(RunStoreElementFromUntaggedBase) {
Smi* smis[] = {Smi::FromInt(1), Smi::FromInt(2), Smi::FromInt(3),
Smi::FromInt(4), Smi::FromInt(5)};
for (size_t i = 0; i < arraysize(smis); i++) { // for header sizes
for (size_t j = 0; (i + j) < arraysize(smis); j++) { // for element index
int offset = static_cast<int>(i * sizeof(Smi*));
ElementAccess access = {kUntaggedBase, offset, Type::Integral32(),
MachineType::AnyTagged()};
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
Node* p0 = t.Parameter(0);
t.StoreElement(access, t.PointerConstant(smis),
t.Int32Constant(static_cast<int>(j)), p0);
t.Return(p0);
t.LowerAllNodesAndLowerChanges();
for (int k = -5; k <= 5; k++) {
Smi* expected = Smi::FromInt(k);
smis[i + j] = Smi::FromInt(-100);
CHECK_EQ(expected, t.Call(expected));
CHECK_EQ(expected, smis[i + j]);
}
// TODO(titzer): assert the contents of the array.
}
}
}
// A helper class for accessing fields and elements of various types, on both
// tagged and untagged base pointers. Contains both tagged and untagged buffers
// for testing direct memory access from generated code.
template <typename E>
class AccessTester : public HandleAndZoneScope {
public:
bool tagged;
MachineType rep;
E* original_elements;
size_t num_elements;
E* untagged_array;
Handle<ByteArray> tagged_array; // TODO(titzer): use FixedArray for tagged.
AccessTester(bool t, MachineType r, E* orig, size_t num)
: tagged(t),
rep(r),
original_elements(orig),
num_elements(num),
untagged_array(static_cast<E*>(malloc(ByteSize()))),
tagged_array(main_isolate()->factory()->NewByteArray(
static_cast<int>(ByteSize()))) {
Reinitialize();
}
~AccessTester() { free(untagged_array); }
size_t ByteSize() { return num_elements * sizeof(E); }
// Nuke both {untagged_array} and {tagged_array} with {original_elements}.
void Reinitialize() {
memcpy(untagged_array, original_elements, ByteSize());
CHECK_EQ(static_cast<int>(ByteSize()), tagged_array->length());
E* raw = reinterpret_cast<E*>(tagged_array->GetDataStartAddress());
memcpy(raw, original_elements, ByteSize());
}
// Create and run code that copies the element in either {untagged_array}
// or {tagged_array} at index {from_index} to index {to_index}.
void RunCopyElement(int from_index, int to_index) {
// TODO(titzer): test element and field accesses where the base is not
// a constant in the code.
BoundsCheck(from_index);
BoundsCheck(to_index);
ElementAccess access = GetElementAccess();
SimplifiedLoweringTester<Object*> t;
Node* ptr = GetBaseNode(&t);
Node* load = t.LoadElement(access, ptr, t.Int32Constant(from_index));
t.StoreElement(access, ptr, t.Int32Constant(to_index), load);
t.Return(t.jsgraph.TrueConstant());
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
Object* result = t.Call();
CHECK_EQ(t.isolate()->heap()->true_value(), result);
}
// Create and run code that copies the field in either {untagged_array}
// or {tagged_array} at index {from_index} to index {to_index}.
void RunCopyField(int from_index, int to_index) {
BoundsCheck(from_index);
BoundsCheck(to_index);
FieldAccess from_access = GetFieldAccess(from_index);
FieldAccess to_access = GetFieldAccess(to_index);
SimplifiedLoweringTester<Object*> t;
Node* ptr = GetBaseNode(&t);
Node* load = t.LoadField(from_access, ptr);
t.StoreField(to_access, ptr, load);
t.Return(t.jsgraph.TrueConstant());
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
Object* result = t.Call();
CHECK_EQ(t.isolate()->heap()->true_value(), result);
}
// Create and run code that copies the elements from {this} to {that}.
void RunCopyElements(AccessTester<E>* that) {
// TODO(titzer): Rewrite this test without StructuredGraphBuilder support.
#if 0
SimplifiedLoweringTester<Object*> t;
Node* one = t.Int32Constant(1);
Node* index = t.Int32Constant(0);
Node* limit = t.Int32Constant(static_cast<int>(num_elements));
t.environment()->Push(index);
Node* src = this->GetBaseNode(&t);
Node* dst = that->GetBaseNode(&t);
{
LoopBuilder loop(&t);
loop.BeginLoop();
// Loop exit condition
index = t.environment()->Top();
Node* condition = t.Int32LessThan(index, limit);
loop.BreakUnless(condition);
// dst[index] = src[index]
index = t.environment()->Pop();
Node* load = t.LoadElement(this->GetElementAccess(), src, index);
t.StoreElement(that->GetElementAccess(), dst, index, load);
// index++
index = t.Int32Add(index, one);
t.environment()->Push(index);
// continue
loop.EndBody();
loop.EndLoop();
}
index = t.environment()->Pop();
t.Return(t.jsgraph.TrueConstant());
t.LowerAllNodes();
t.GenerateCode();
Object* result = t.Call();
CHECK_EQ(t.isolate()->heap()->true_value(), result);
#endif
}
E GetElement(int index) {
BoundsCheck(index);
if (tagged) {
return GetTaggedElement(index);
} else {
return untagged_array[index];
}
}
private:
ElementAccess GetElementAccess() {
ElementAccess access = {tagged ? kTaggedBase : kUntaggedBase,
tagged ? FixedArrayBase::kHeaderSize : 0,
Type::Any(), rep};
return access;
}
FieldAccess GetFieldAccess(int field) {
int offset = field * sizeof(E);
FieldAccess access = {tagged ? kTaggedBase : kUntaggedBase,
offset + (tagged ? FixedArrayBase::kHeaderSize : 0),
Handle<Name>(), Type::Any(), rep};
return access;
}
template <typename T>
Node* GetBaseNode(SimplifiedLoweringTester<T>* t) {
return tagged ? t->HeapConstant(tagged_array)
: t->PointerConstant(untagged_array);
}
void BoundsCheck(int index) {
CHECK_GE(index, 0);
CHECK_LT(index, static_cast<int>(num_elements));
CHECK_EQ(static_cast<int>(ByteSize()), tagged_array->length());
}
E GetTaggedElement(int index) {
E* raw = reinterpret_cast<E*>(tagged_array->GetDataStartAddress());
return raw[index];
}
};
template <>
double AccessTester<double>::GetTaggedElement(int index) {
return ReadDoubleValue(tagged_array->GetDataStartAddress() +
index * sizeof(double));
}
template <typename E>
static void RunAccessTest(MachineType rep, E* original_elements, size_t num) {
int num_elements = static_cast<int>(num);
for (int taggedness = 0; taggedness < 2; taggedness++) {
AccessTester<E> a(taggedness == 1, rep, original_elements, num);
for (int field = 0; field < 2; field++) {
for (int i = 0; i < num_elements - 1; i++) {
a.Reinitialize();
if (field == 0) {
a.RunCopyField(i, i + 1); // Test field read/write.
} else {
a.RunCopyElement(i, i + 1); // Test element read/write.
}
for (int j = 0; j < num_elements; j++) {
E expect =
j == (i + 1) ? original_elements[i] : original_elements[j];
CHECK_EQ(expect, a.GetElement(j));
}
}
}
}
// Test array copy.
for (int tf = 0; tf < 2; tf++) {
for (int tt = 0; tt < 2; tt++) {
AccessTester<E> a(tf == 1, rep, original_elements, num);
AccessTester<E> b(tt == 1, rep, original_elements, num);
a.RunCopyElements(&b);
for (int i = 0; i < num_elements; i++) {
CHECK_EQ(a.GetElement(i), b.GetElement(i));
}
}
}
}
TEST(RunAccessTests_uint8) {
uint8_t data[] = {0x07, 0x16, 0x25, 0x34, 0x43, 0x99,
0xab, 0x78, 0x89, 0x19, 0x2b, 0x38};
RunAccessTest<uint8_t>(MachineType::Int8(), data, arraysize(data));
}
TEST(RunAccessTests_uint16) {
uint16_t data[] = {0x071a, 0x162b, 0x253c, 0x344d, 0x435e, 0x7777};
RunAccessTest<uint16_t>(MachineType::Int16(), data, arraysize(data));
}
TEST(RunAccessTests_int32) {
int32_t data[] = {-211, 211, 628347, 2000000000, -2000000000, -1, -100000034};
RunAccessTest<int32_t>(MachineType::Int32(), data, arraysize(data));
}
#define V8_2PART_INT64(a, b) (((static_cast<int64_t>(a) << 32) + 0x##b##u))
TEST(RunAccessTests_int64) {
if (kPointerSize != 8) return;
int64_t data[] = {V8_2PART_INT64(0x10111213, 14151617),
V8_2PART_INT64(0x20212223, 24252627),
V8_2PART_INT64(0x30313233, 34353637),
V8_2PART_INT64(0xa0a1a2a3, a4a5a6a7),
V8_2PART_INT64(0xf0f1f2f3, f4f5f6f7)};
RunAccessTest<int64_t>(MachineType::Int64(), data, arraysize(data));
}
TEST(RunAccessTests_float64) {
double data[] = {1.25, -1.25, 2.75, 11.0, 11100.8};
RunAccessTest<double>(MachineType::Float64(), data, arraysize(data));
}
TEST(RunAccessTests_Smi) {
Smi* data[] = {Smi::FromInt(-1), Smi::FromInt(-9),
Smi::FromInt(0), Smi::FromInt(666),
Smi::FromInt(77777), Smi::FromInt(Smi::kMaxValue)};
RunAccessTest<Smi*>(MachineType::AnyTagged(), data, arraysize(data));
}
TEST(RunAllocate) {
PretenureFlag flag[] = {NOT_TENURED, TENURED};
for (size_t i = 0; i < arraysize(flag); i++) {
SimplifiedLoweringTester<HeapObject*> t;
FieldAccess access = AccessBuilder::ForMap();
Node* size = t.jsgraph.Constant(HeapNumber::kSize);
Node* alloc = t.NewNode(t.simplified()->Allocate(flag[i]), size);
Node* map = t.jsgraph.Constant(t.factory()->heap_number_map());
t.StoreField(access, alloc, map);
t.Return(alloc);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
HeapObject* result = t.CallWithPotentialGC<HeapObject>();
CHECK(t.heap()->new_space()->Contains(result) || flag[i] == TENURED);
CHECK(t.heap()->old_space()->Contains(result) || flag[i] == NOT_TENURED);
CHECK(result->IsHeapNumber());
}
}
// Fills in most of the nodes of the graph in order to make tests shorter.
class TestingGraph : public HandleAndZoneScope, public GraphAndBuilders {
public:
Typer typer;
JSOperatorBuilder javascript;
JSGraph jsgraph;
Node* p0;
Node* p1;
Node* p2;
Node* start;
Node* end;
Node* ret;
explicit TestingGraph(Type* p0_type, Type* p1_type = Type::None(),
Type* p2_type = Type::None())
: GraphAndBuilders(main_zone()),
typer(main_isolate(), graph()),
javascript(main_zone()),
jsgraph(main_isolate(), graph(), common(), &javascript, simplified(),
machine()) {
start = graph()->NewNode(common()->Start(4));
graph()->SetStart(start);
ret =
graph()->NewNode(common()->Return(), jsgraph.Constant(0), start, start);
end = graph()->NewNode(common()->End(1), ret);
graph()->SetEnd(end);
p0 = graph()->NewNode(common()->Parameter(0), start);
p1 = graph()->NewNode(common()->Parameter(1), start);
p2 = graph()->NewNode(common()->Parameter(2), start);
typer.Run();
NodeProperties::SetType(p0, p0_type);
NodeProperties::SetType(p1, p1_type);
NodeProperties::SetType(p2, p2_type);
}
void CheckLoweringBinop(IrOpcode::Value expected, const Operator* op) {
Node* node = Return(graph()->NewNode(op, p0, p1));
Lower();
CHECK_EQ(expected, node->opcode());
}
void CheckLoweringStringBinop(IrOpcode::Value expected, const Operator* op) {
Node* node = Return(
graph()->NewNode(op, p0, p1, graph()->start(), graph()->start()));
Lower();
CHECK_EQ(expected, node->opcode());
}
void CheckLoweringTruncatedBinop(IrOpcode::Value expected, const Operator* op,
const Operator* trunc) {
Node* node = graph()->NewNode(op, p0, p1);
Return(graph()->NewNode(trunc, node));
Lower();
CHECK_EQ(expected, node->opcode());
}
void Lower() {
SourcePositionTable table(jsgraph.graph());
SimplifiedLowering(&jsgraph, jsgraph.zone(), &table).LowerAllNodes();
}
void LowerAllNodesAndLowerChanges() {
SourcePositionTable table(jsgraph.graph());
SimplifiedLowering(&jsgraph, jsgraph.zone(), &table).LowerAllNodes();
Schedule* schedule = Scheduler::ComputeSchedule(this->zone(), this->graph(),
Scheduler::kNoFlags);
EffectControlLinearizer linearizer(&jsgraph, schedule, this->zone());
linearizer.Run();
ChangeLowering lowering(&jsgraph);
GraphReducer reducer(this->zone(), this->graph());
reducer.AddReducer(&lowering);
reducer.ReduceGraph();
Verifier::Run(this->graph());
}
// Inserts the node as the return value of the graph.
Node* Return(Node* node) {
ret->ReplaceInput(0, node);
return node;
}
// Inserts the node as the effect input to the return of the graph.
void Effect(Node* node) { ret->ReplaceInput(1, node); }
Node* ExampleWithOutput(MachineType type) {
if (type.semantic() == MachineSemantic::kInt32) {
return graph()->NewNode(machine()->Int32Add(), jsgraph.Int32Constant(1),
jsgraph.Int32Constant(1));
} else if (type.semantic() == MachineSemantic::kUint32) {
return graph()->NewNode(machine()->Word32Shr(), jsgraph.Int32Constant(1),
jsgraph.Int32Constant(1));
} else if (type.representation() == MachineRepresentation::kFloat64) {
return graph()->NewNode(machine()->Float64Add(),
jsgraph.Float64Constant(1),
jsgraph.Float64Constant(1));
} else if (type.representation() == MachineRepresentation::kBit) {
return graph()->NewNode(machine()->Word32Equal(),
jsgraph.Int32Constant(1),
jsgraph.Int32Constant(1));
} else if (type.representation() == MachineRepresentation::kWord64) {
return graph()->NewNode(machine()->Int64Add(), Int64Constant(1),
Int64Constant(1));
} else {
CHECK(type.representation() == MachineRepresentation::kTagged);
return p0;
}
}
Node* Use(Node* node, MachineType type) {
if (type.semantic() == MachineSemantic::kInt32) {
return graph()->NewNode(machine()->Int32LessThan(), node,
jsgraph.Int32Constant(1));
} else if (type.semantic() == MachineSemantic::kUint32) {
return graph()->NewNode(machine()->Uint32LessThan(), node,
jsgraph.Int32Constant(1));
} else if (type.representation() == MachineRepresentation::kFloat64) {
return graph()->NewNode(machine()->Float64Add(), node,
jsgraph.Float64Constant(1));
} else if (type.representation() == MachineRepresentation::kWord64) {
return graph()->NewNode(machine()->Int64LessThan(), node,
Int64Constant(1));
} else if (type.representation() == MachineRepresentation::kWord32) {
return graph()->NewNode(machine()->Word32Equal(), node,
jsgraph.Int32Constant(1));
} else {
return graph()->NewNode(simplified()->ReferenceEqual(Type::Any()), node,
jsgraph.TrueConstant());
}
}
Node* Branch(Node* cond) {
Node* br = graph()->NewNode(common()->Branch(), cond, start);
Node* tb = graph()->NewNode(common()->IfTrue(), br);
Node* fb = graph()->NewNode(common()->IfFalse(), br);
Node* m = graph()->NewNode(common()->Merge(2), tb, fb);
NodeProperties::ReplaceControlInput(ret, m);
return br;
}
Node* Int64Constant(int64_t v) {
return graph()->NewNode(common()->Int64Constant(v));
}
SimplifiedOperatorBuilder* simplified() { return &main_simplified_; }
MachineOperatorBuilder* machine() { return &main_machine_; }
CommonOperatorBuilder* common() { return &main_common_; }
Graph* graph() { return main_graph_; }
};
TEST(LowerBooleanNot_bit_bit) {
// BooleanNot(x: kRepBit) used as kRepBit
TestingGraph t(Type::Boolean());
Node* b = t.ExampleWithOutput(MachineType::Bool());
Node* inv = t.graph()->NewNode(t.simplified()->BooleanNot(), b);
Node* use = t.Branch(inv);
t.Lower();
Node* cmp = use->InputAt(0);
CHECK_EQ(t.machine()->Word32Equal()->opcode(), cmp->opcode());
CHECK(b == cmp->InputAt(0) || b == cmp->InputAt(1));
Node* f = t.jsgraph.Int32Constant(0);
CHECK(f == cmp->InputAt(0) || f == cmp->InputAt(1));
}
TEST(LowerBooleanNot_bit_tagged) {
// BooleanNot(x: kRepBit) used as kRepTagged
TestingGraph t(Type::Boolean());
Node* b = t.ExampleWithOutput(MachineType::Bool());
Node* inv = t.graph()->NewNode(t.simplified()->BooleanNot(), b);
Node* use = t.Use(inv, MachineType::AnyTagged());
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kChangeBitToTagged, use->InputAt(0)->opcode());
Node* cmp = use->InputAt(0)->InputAt(0);
CHECK_EQ(t.machine()->Word32Equal()->opcode(), cmp->opcode());
CHECK(b == cmp->InputAt(0) || b == cmp->InputAt(1));
Node* f = t.jsgraph.Int32Constant(0);
CHECK(f == cmp->InputAt(0) || f == cmp->InputAt(1));
}
TEST(LowerBooleanNot_tagged_bit) {
// BooleanNot(x: kRepTagged) used as kRepBit
TestingGraph t(Type::Boolean());
Node* b = t.p0;
Node* inv = t.graph()->NewNode(t.simplified()->BooleanNot(), b);
Node* use = t.Branch(inv);
t.Lower();
Node* cmp = use->InputAt(0);
CHECK_EQ(t.machine()->WordEqual()->opcode(), cmp->opcode());
CHECK(b == cmp->InputAt(0) || b == cmp->InputAt(1));
Node* f = t.jsgraph.FalseConstant();
CHECK(f == cmp->InputAt(0) || f == cmp->InputAt(1));
}
TEST(LowerBooleanNot_tagged_tagged) {
// BooleanNot(x: kRepTagged) used as kRepTagged
TestingGraph t(Type::Boolean());
Node* b = t.p0;
Node* inv = t.graph()->NewNode(t.simplified()->BooleanNot(), b);
Node* use = t.Use(inv, MachineType::AnyTagged());
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kChangeBitToTagged, use->InputAt(0)->opcode());
Node* cmp = use->InputAt(0)->InputAt(0);
CHECK_EQ(t.machine()->WordEqual()->opcode(), cmp->opcode());
CHECK(b == cmp->InputAt(0) || b == cmp->InputAt(1));
Node* f = t.jsgraph.FalseConstant();
CHECK(f == cmp->InputAt(0) || f == cmp->InputAt(1));
}
TEST(LowerBooleanToNumber_bit_int32) {
// BooleanToNumber(x: kRepBit) used as MachineType::Int32()
TestingGraph t(Type::Boolean());
Node* b = t.ExampleWithOutput(MachineType::Bool());
Node* cnv = t.graph()->NewNode(t.simplified()->BooleanToNumber(), b);
Node* use = t.Use(cnv, MachineType::Int32());
t.Return(use);
t.Lower();
CHECK_EQ(b, use->InputAt(0));
}
TEST(LowerBooleanToNumber_tagged_int32) {
// BooleanToNumber(x: kRepTagged) used as MachineType::Int32()
TestingGraph t(Type::Boolean());
Node* b = t.p0;
Node* cnv = t.graph()->NewNode(t.simplified()->BooleanToNumber(), b);
Node* use = t.Use(cnv, MachineType::Int32());
t.Return(use);
t.Lower();
CHECK_EQ(t.machine()->WordEqual()->opcode(), cnv->opcode());
CHECK(b == cnv->InputAt(0) || b == cnv->InputAt(1));
Node* c = t.jsgraph.TrueConstant();
CHECK(c == cnv->InputAt(0) || c == cnv->InputAt(1));
}
TEST(LowerBooleanToNumber_bit_tagged) {
// BooleanToNumber(x: kRepBit) used as MachineType::AnyTagged()
TestingGraph t(Type::Boolean());
Node* b = t.ExampleWithOutput(MachineType::Bool());
Node* cnv = t.graph()->NewNode(t.simplified()->BooleanToNumber(), b);
Node* use = t.Use(cnv, MachineType::AnyTagged());
t.Return(use);
t.Lower();
CHECK_EQ(b, use->InputAt(0)->InputAt(0));
CHECK_EQ(IrOpcode::kChangeInt31ToTaggedSigned, use->InputAt(0)->opcode());
}
TEST(LowerBooleanToNumber_tagged_tagged) {
// BooleanToNumber(x: kRepTagged) used as MachineType::AnyTagged()
TestingGraph t(Type::Boolean());
Node* b = t.p0;
Node* cnv = t.graph()->NewNode(t.simplified()->BooleanToNumber(), b);
Node* use = t.Use(cnv, MachineType::AnyTagged());
t.Return(use);
t.Lower();
CHECK_EQ(cnv, use->InputAt(0)->InputAt(0));
CHECK_EQ(IrOpcode::kChangeInt31ToTaggedSigned, use->InputAt(0)->opcode());
CHECK_EQ(t.machine()->WordEqual()->opcode(), cnv->opcode());
CHECK(b == cnv->InputAt(0) || b == cnv->InputAt(1));
Node* c = t.jsgraph.TrueConstant();
CHECK(c == cnv->InputAt(0) || c == cnv->InputAt(1));
}
static Type* test_types[] = {Type::Signed32(), Type::Unsigned32(),
Type::Number()};
TEST(LowerNumberCmp_to_int32) {
TestingGraph t(Type::Signed32(), Type::Signed32());
t.CheckLoweringBinop(IrOpcode::kWord32Equal, t.simplified()->NumberEqual());
t.CheckLoweringBinop(IrOpcode::kInt32LessThan,
t.simplified()->NumberLessThan());
t.CheckLoweringBinop(IrOpcode::kInt32LessThanOrEqual,
t.simplified()->NumberLessThanOrEqual());
}
TEST(LowerNumberCmp_to_uint32) {
TestingGraph t(Type::Unsigned32(), Type::Unsigned32());
t.CheckLoweringBinop(IrOpcode::kWord32Equal, t.simplified()->NumberEqual());
t.CheckLoweringBinop(IrOpcode::kUint32LessThan,
t.simplified()->NumberLessThan());
t.CheckLoweringBinop(IrOpcode::kUint32LessThanOrEqual,
t.simplified()->NumberLessThanOrEqual());
}
TEST(LowerNumberCmp_to_float64) {
TestingGraph t(Type::Number(), Type::Number());
t.CheckLoweringBinop(IrOpcode::kFloat64Equal, t.simplified()->NumberEqual());
t.CheckLoweringBinop(IrOpcode::kFloat64LessThan,
t.simplified()->NumberLessThan());
t.CheckLoweringBinop(IrOpcode::kFloat64LessThanOrEqual,
t.simplified()->NumberLessThanOrEqual());
}
TEST(LowerNumberAddSub_to_int32) {
HandleAndZoneScope scope;
Type* small_range = Type::Range(1, 10, scope.main_zone());
Type* large_range = Type::Range(-1e+13, 1e+14, scope.main_zone());
static Type* types[] = {Type::Signed32(), Type::Integral32(), small_range,
large_range};
for (size_t i = 0; i < arraysize(types); i++) {
for (size_t j = 0; j < arraysize(types); j++) {
TestingGraph t(types[i], types[j]);
t.CheckLoweringTruncatedBinop(IrOpcode::kInt32Add,
t.simplified()->NumberAdd(),
t.simplified()->NumberToInt32());
t.CheckLoweringTruncatedBinop(IrOpcode::kInt32Sub,
t.simplified()->NumberSubtract(),
t.simplified()->NumberToInt32());
}
}
}
TEST(LowerNumberAddSub_to_uint32) {
HandleAndZoneScope scope;
Type* small_range = Type::Range(1, 10, scope.main_zone());
Type* large_range = Type::Range(-1e+13, 1e+14, scope.main_zone());
static Type* types[] = {Type::Signed32(), Type::Integral32(), small_range,
large_range};
for (size_t i = 0; i < arraysize(types); i++) {
for (size_t j = 0; j < arraysize(types); j++) {
TestingGraph t(types[i], types[j]);
t.CheckLoweringTruncatedBinop(IrOpcode::kInt32Add,
t.simplified()->NumberAdd(),
t.simplified()->NumberToUint32());
t.CheckLoweringTruncatedBinop(IrOpcode::kInt32Sub,
t.simplified()->NumberSubtract(),
t.simplified()->NumberToUint32());
}
}
}
TEST(LowerNumberAddSub_to_float64) {
for (size_t i = 0; i < arraysize(test_types); i++) {
TestingGraph t(test_types[i], test_types[i]);
t.CheckLoweringBinop(IrOpcode::kFloat64Add, t.simplified()->NumberAdd());
t.CheckLoweringBinop(IrOpcode::kFloat64Sub,
t.simplified()->NumberSubtract());
}
}
TEST(LowerNumberDivMod_to_float64) {
for (size_t i = 0; i < arraysize(test_types); i++) {
TestingGraph t(test_types[i], test_types[i]);
t.CheckLoweringBinop(IrOpcode::kFloat64Div, t.simplified()->NumberDivide());
if (!test_types[i]->Is(Type::Unsigned32())) {
t.CheckLoweringBinop(IrOpcode::kFloat64Mod,
t.simplified()->NumberModulus());
}
}
}
static void CheckChangeOf(IrOpcode::Value change, Node* of, Node* node) {
CHECK_EQ(change, node->opcode());
CHECK_EQ(of, node->InputAt(0));
}
TEST(LowerNumberToInt32_to_ChangeTaggedToInt32) {
// NumberToInt32(x: kRepTagged | kTypeInt32) used as kRepWord32
TestingGraph t(Type::Signed32());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToInt32(), t.p0);
Node* use = t.Use(trunc, MachineType::Int32());
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kChangeTaggedToInt32, t.p0, use->InputAt(0));
}
TEST(LowerNumberToInt32_to_TruncateFloat64ToWord32) {
// NumberToInt32(x: kRepFloat64) used as MachineType::Int32()
TestingGraph t(Type::Number());
Node* p0 = t.ExampleWithOutput(MachineType::Float64());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToInt32(), p0);
Node* use = t.Use(trunc, MachineType::Int32());
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kTruncateFloat64ToWord32, p0, use->InputAt(0));
}
TEST(LowerNumberToInt32_to_TruncateTaggedToWord32) {
// NumberToInt32(x: kTypeNumber | kRepTagged) used as MachineType::Int32()
TestingGraph t(Type::Number());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToInt32(), t.p0);
Node* use = t.Use(trunc, MachineType::Int32());
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kTruncateTaggedToWord32, t.p0, use->InputAt(0));
}
TEST(LowerNumberToUint32_to_ChangeTaggedToUint32) {
// NumberToUint32(x: kRepTagged | kTypeUint32) used as kRepWord32
TestingGraph t(Type::Unsigned32());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToUint32(), t.p0);
Node* use = t.Use(trunc, MachineType::Uint32());
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kChangeTaggedToUint32, t.p0, use->InputAt(0));
}
TEST(LowerNumberToUint32_to_TruncateFloat64ToWord32) {
// NumberToUint32(x: kRepFloat64) used as MachineType::Uint32()
TestingGraph t(Type::Number());
Node* p0 = t.ExampleWithOutput(MachineType::Float64());
// TODO(titzer): run the typer here, or attach machine type to param.
NodeProperties::SetType(p0, Type::Number());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToUint32(), p0);
Node* use = t.Use(trunc, MachineType::Uint32());
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kTruncateFloat64ToWord32, p0, use->InputAt(0));
}
TEST(LowerNumberToUint32_to_TruncateTaggedToWord32) {
// NumberToInt32(x: kTypeNumber | kRepTagged) used as MachineType::Uint32()
TestingGraph t(Type::Number());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToUint32(), t.p0);
Node* use = t.Use(trunc, MachineType::Uint32());
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kTruncateTaggedToWord32, t.p0, use->InputAt(0));
}
TEST(LowerNumberToUint32_to_TruncateFloat64ToWord32_uint32) {
// NumberToUint32(x: kRepFloat64) used as kRepWord32
TestingGraph t(Type::Unsigned32());
Node* input = t.ExampleWithOutput(MachineType::Float64());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToUint32(), input);
Node* use = t.Use(trunc, MachineType::RepWord32());
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kTruncateFloat64ToWord32, input, use->InputAt(0));
}
TEST(LowerReferenceEqual_to_wordeq) {
TestingGraph t(Type::Any(), Type::Any());
IrOpcode::Value opcode =
static_cast<IrOpcode::Value>(t.machine()->WordEqual()->opcode());
t.CheckLoweringBinop(opcode, t.simplified()->ReferenceEqual(Type::Any()));
}
void CheckChangeInsertion(IrOpcode::Value expected, MachineType from,
MachineType to, Type* type = Type::Any()) {
TestingGraph t(Type::Any());
Node* in = t.ExampleWithOutput(from);
NodeProperties::SetType(in, type);
Node* use = t.Use(in, to);
t.Return(use);
t.Lower();
CHECK_EQ(expected, use->InputAt(0)->opcode());
CHECK_EQ(in, use->InputAt(0)->InputAt(0));
}
TEST(InsertBasicChanges) {
CheckChangeInsertion(IrOpcode::kChangeFloat64ToInt32, MachineType::Float64(),
MachineType::Int32(), Type::Signed32());
CheckChangeInsertion(IrOpcode::kChangeFloat64ToUint32, MachineType::Float64(),
MachineType::Uint32(), Type::Unsigned32());
CheckChangeInsertion(IrOpcode::kTruncateFloat64ToWord32,
MachineType::Float64(), MachineType::Uint32(),
Type::Integral32());
CheckChangeInsertion(IrOpcode::kChangeTaggedToInt32, MachineType::AnyTagged(),
MachineType::Int32(), Type::Signed32());
CheckChangeInsertion(IrOpcode::kChangeTaggedToUint32,
MachineType::AnyTagged(), MachineType::Uint32(),
Type::Unsigned32());
CheckChangeInsertion(IrOpcode::kChangeFloat64ToTagged, MachineType::Float64(),
MachineType::AnyTagged());
CheckChangeInsertion(IrOpcode::kChangeTaggedToFloat64,
MachineType::AnyTagged(), MachineType::Float64(),
Type::Number());
CheckChangeInsertion(IrOpcode::kChangeInt32ToFloat64, MachineType::Int32(),
MachineType::Float64(), Type::Signed32());
CheckChangeInsertion(IrOpcode::kChangeInt32ToTagged, MachineType::Int32(),
MachineType::AnyTagged(), Type::Signed32());
CheckChangeInsertion(IrOpcode::kChangeUint32ToFloat64, MachineType::Uint32(),
MachineType::Float64(), Type::Unsigned32());
CheckChangeInsertion(IrOpcode::kChangeUint32ToTagged, MachineType::Uint32(),
MachineType::AnyTagged(), Type::Unsigned32());
}
static void CheckChangesAroundBinop(TestingGraph* t, const Operator* op,
IrOpcode::Value input_change,
IrOpcode::Value output_change,
Type* type = Type::Any()) {
Node* binop =
op->ControlInputCount() == 0
? t->graph()->NewNode(op, t->p0, t->p1)
: t->graph()->NewNode(op, t->p0, t->p1, t->graph()->start());
NodeProperties::SetType(binop, type);
t->Return(binop);
t->Lower();
CHECK_EQ(input_change, binop->InputAt(0)->opcode());
CHECK_EQ(input_change, binop->InputAt(1)->opcode());
CHECK_EQ(t->p0, binop->InputAt(0)->InputAt(0));
CHECK_EQ(t->p1, binop->InputAt(1)->InputAt(0));
CHECK_EQ(output_change, t->ret->InputAt(0)->opcode());
CHECK_EQ(binop, t->ret->InputAt(0)->InputAt(0));
}
TEST(InsertChangesAroundInt32Binops) {
TestingGraph t(Type::Signed32(), Type::Signed32());
const Operator* ops[] = {t.machine()->Int32Add(), t.machine()->Int32Sub(),
t.machine()->Int32Mul(), t.machine()->Int32Div(),
t.machine()->Int32Mod(), t.machine()->Word32And(),
t.machine()->Word32Or(), t.machine()->Word32Xor(),
t.machine()->Word32Shl(), t.machine()->Word32Sar()};
for (size_t i = 0; i < arraysize(ops); i++) {
CheckChangesAroundBinop(&t, ops[i], IrOpcode::kChangeTaggedToInt32,
IrOpcode::kChangeInt32ToTagged, Type::Signed32());
CheckChangesAroundBinop(&t, ops[i], IrOpcode::kChangeTaggedToInt32,
IrOpcode::kChangeInt32ToTagged, Type::Signed32());
}
}
TEST(InsertChangesAroundInt32Cmp) {
TestingGraph t(Type::Signed32(), Type::Signed32());
const Operator* ops[] = {t.machine()->Int32LessThan(),
t.machine()->Int32LessThanOrEqual()};
for (size_t i = 0; i < arraysize(ops); i++) {
CheckChangesAroundBinop(&t, ops[i], IrOpcode::kChangeTaggedToInt32,
IrOpcode::kChangeBitToTagged);
}
}
TEST(InsertChangesAroundUint32Cmp) {
TestingGraph t(Type::Unsigned32(), Type::Unsigned32());
const Operator* ops[] = {t.machine()->Uint32LessThan(),
t.machine()->Uint32LessThanOrEqual()};
for (size_t i = 0; i < arraysize(ops); i++) {
CheckChangesAroundBinop(&t, ops[i], IrOpcode::kChangeTaggedToUint32,
IrOpcode::kChangeBitToTagged);
}
}
TEST(InsertChangesAroundFloat64Binops) {
TestingGraph t(Type::Number(), Type::Number());
const Operator* ops[] = {
t.machine()->Float64Add(), t.machine()->Float64Sub(),
t.machine()->Float64Mul(), t.machine()->Float64Div(),
t.machine()->Float64Mod(),
};
for (size_t i = 0; i < arraysize(ops); i++) {
CheckChangesAroundBinop(&t, ops[i], IrOpcode::kChangeTaggedToFloat64,
IrOpcode::kChangeFloat64ToTagged);
}
}
TEST(InsertChangesAroundFloat64Cmp) {
TestingGraph t(Type::Number(), Type::Number());
const Operator* ops[] = {t.machine()->Float64Equal(),
t.machine()->Float64LessThan(),
t.machine()->Float64LessThanOrEqual()};
for (size_t i = 0; i < arraysize(ops); i++) {
CheckChangesAroundBinop(&t, ops[i], IrOpcode::kChangeTaggedToFloat64,
IrOpcode::kChangeBitToTagged);
}
}
namespace {
void CheckFieldAccessArithmetic(FieldAccess access, Node* load_or_store) {
IntPtrMatcher mindex(load_or_store->InputAt(1));
CHECK(mindex.Is(access.offset - access.tag()));
}
Node* CheckElementAccessArithmetic(ElementAccess access, Node* load_or_store) {
Node* index = load_or_store->InputAt(1);
if (kPointerSize == 8) {
CHECK_EQ(IrOpcode::kChangeUint32ToUint64, index->opcode());
index = index->InputAt(0);
}
Int32BinopMatcher mindex(index);
CHECK_EQ(IrOpcode::kInt32Add, mindex.node()->opcode());
CHECK(mindex.right().Is(access.header_size - access.tag()));
const int element_size_shift =
ElementSizeLog2Of(access.machine_type.representation());
if (element_size_shift) {
Int32BinopMatcher shl(mindex.left().node());
CHECK_EQ(IrOpcode::kWord32Shl, shl.node()->opcode());
CHECK(shl.right().Is(element_size_shift));
return shl.left().node();
} else {
return mindex.left().node();
}
}
const MachineType kMachineReps[] = {
MachineType::Int8(), MachineType::Int16(), MachineType::Int32(),
MachineType::Uint32(), MachineType::Int64(), MachineType::Float64(),
MachineType::AnyTagged()};
} // namespace
TEST(LowerLoadField_to_load) {
for (size_t i = 0; i < arraysize(kMachineReps); i++) {
TestingGraph t(Type::Any(), Type::Signed32());
FieldAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Handle<Name>::null(), Type::Any(), kMachineReps[i]};
Node* load = t.graph()->NewNode(t.simplified()->LoadField(access), t.p0,
t.start, t.start);
Node* use = t.Use(load, kMachineReps[i]);
t.Return(use);
t.LowerAllNodesAndLowerChanges();
CHECK_EQ(IrOpcode::kLoad, load->opcode());
CHECK_EQ(t.p0, load->InputAt(0));
CheckFieldAccessArithmetic(access, load);
MachineType rep = LoadRepresentationOf(load->op());
CHECK_EQ(kMachineReps[i], rep);
}
}
TEST(LowerStoreField_to_store) {
{
TestingGraph t(Type::Any(), Type::Signed32());
for (size_t i = 0; i < arraysize(kMachineReps); i++) {
FieldAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Handle<Name>::null(), Type::Any(), kMachineReps[i]};
Node* val = t.ExampleWithOutput(kMachineReps[i]);
Node* store = t.graph()->NewNode(t.simplified()->StoreField(access), t.p0,
val, t.start, t.start);
t.Effect(store);
t.LowerAllNodesAndLowerChanges();
CHECK_EQ(IrOpcode::kStore, store->opcode());
CHECK_EQ(val, store->InputAt(2));
CheckFieldAccessArithmetic(access, store);
StoreRepresentation rep = StoreRepresentationOf(store->op());
if (kMachineReps[i].representation() == MachineRepresentation::kTagged) {
CHECK_EQ(kFullWriteBarrier, rep.write_barrier_kind());
}
CHECK_EQ(kMachineReps[i].representation(), rep.representation());
}
}
{
HandleAndZoneScope scope;
Zone* z = scope.main_zone();
TestingGraph t(Type::Any(), Type::Intersect(Type::SignedSmall(),
Type::TaggedSigned(), z));
FieldAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Handle<Name>::null(), Type::Any(),
MachineType::AnyTagged()};
Node* store = t.graph()->NewNode(t.simplified()->StoreField(access), t.p0,
t.p1, t.start, t.start);
t.Effect(store);
t.LowerAllNodesAndLowerChanges();
CHECK_EQ(IrOpcode::kStore, store->opcode());
CHECK_EQ(t.p1, store->InputAt(2));
StoreRepresentation rep = StoreRepresentationOf(store->op());
CHECK_EQ(kFullWriteBarrier, rep.write_barrier_kind());
}
}
TEST(LowerLoadElement_to_load) {
for (size_t i = 0; i < arraysize(kMachineReps); i++) {
TestingGraph t(Type::Any(), Type::Signed32());
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Type::Any(), kMachineReps[i]};
Node* load = t.graph()->NewNode(t.simplified()->LoadElement(access), t.p0,
t.p1, t.start, t.start);
Node* use = t.Use(load, kMachineReps[i]);
t.Return(use);
t.LowerAllNodesAndLowerChanges();
CHECK_EQ(IrOpcode::kLoad, load->opcode());
CHECK_EQ(t.p0, load->InputAt(0));
CheckElementAccessArithmetic(access, load);
MachineType rep = LoadRepresentationOf(load->op());
CHECK_EQ(kMachineReps[i], rep);
}
}
TEST(LowerStoreElement_to_store) {
{
for (size_t i = 0; i < arraysize(kMachineReps); i++) {
TestingGraph t(Type::Any(), Type::Signed32());
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Type::Any(), kMachineReps[i]};
Node* val = t.ExampleWithOutput(kMachineReps[i]);
Node* store = t.graph()->NewNode(t.simplified()->StoreElement(access),
t.p0, t.p1, val, t.start, t.start);
t.Effect(store);
t.LowerAllNodesAndLowerChanges();
CHECK_EQ(IrOpcode::kStore, store->opcode());
CHECK_EQ(val, store->InputAt(2));
CheckElementAccessArithmetic(access, store);
StoreRepresentation rep = StoreRepresentationOf(store->op());
if (kMachineReps[i].representation() == MachineRepresentation::kTagged) {
CHECK_EQ(kFullWriteBarrier, rep.write_barrier_kind());
}
CHECK_EQ(kMachineReps[i].representation(), rep.representation());
}
}
{
HandleAndZoneScope scope;
Zone* z = scope.main_zone();
TestingGraph t(
Type::Any(), Type::Signed32(),
Type::Intersect(Type::SignedSmall(), Type::TaggedSigned(), z));
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Type::Any(), MachineType::AnyTagged()};
Node* store = t.graph()->NewNode(t.simplified()->StoreElement(access), t.p0,
t.p1, t.p2, t.start, t.start);
t.Effect(store);
t.LowerAllNodesAndLowerChanges();
CHECK_EQ(IrOpcode::kStore, store->opcode());
CHECK_EQ(t.p2, store->InputAt(2));
StoreRepresentation rep = StoreRepresentationOf(store->op());
CHECK_EQ(kFullWriteBarrier, rep.write_barrier_kind());
}
}
TEST(InsertChangeForLoadElementIndex) {
// LoadElement(obj: Tagged, index: kTypeInt32 | kRepTagged, length) =>
// Load(obj, Int32Add(Int32Mul(ChangeTaggedToInt32(index), #k), #k))
TestingGraph t(Type::Any(), Type::Signed32());
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize, Type::Any(),
MachineType::AnyTagged()};
Node* load = t.graph()->NewNode(t.simplified()->LoadElement(access), t.p0,
t.p1, t.start, t.start);
t.Return(load);
t.Lower();
CHECK_EQ(IrOpcode::kLoadElement, load->opcode());
CHECK_EQ(t.p0, load->InputAt(0));
CheckChangeOf(IrOpcode::kChangeTaggedToInt32, t.p1, load->InputAt(1));
}
TEST(InsertChangeForStoreElementIndex) {
// StoreElement(obj: Tagged, index: kTypeInt32 | kRepTagged, length, val) =>
// Store(obj, Int32Add(Int32Mul(ChangeTaggedToInt32(index), #k), #k), val)
TestingGraph t(Type::Any(), Type::Signed32());
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize, Type::Any(),
MachineType::AnyTagged()};
Node* store =
t.graph()->NewNode(t.simplified()->StoreElement(access), t.p0, t.p1,
t.jsgraph.TrueConstant(), t.start, t.start);
t.Effect(store);
t.Lower();
CHECK_EQ(IrOpcode::kStoreElement, store->opcode());
CHECK_EQ(t.p0, store->InputAt(0));
CheckChangeOf(IrOpcode::kChangeTaggedToInt32, t.p1, store->InputAt(1));
}
TEST(InsertChangeForLoadElement) {
// TODO(titzer): test all load/store representation change insertions.
TestingGraph t(Type::Any(), Type::Signed32(), Type::Any());
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize, Type::Any(),
MachineType::Float64()};
Node* load = t.graph()->NewNode(t.simplified()->LoadElement(access), t.p0,
t.p1, t.start, t.start);
t.Return(load);
t.Lower();
CHECK_EQ(IrOpcode::kLoadElement, load->opcode());
CHECK_EQ(t.p0, load->InputAt(0));
CheckChangeOf(IrOpcode::kChangeFloat64ToTagged, load, t.ret->InputAt(0));
}
TEST(InsertChangeForLoadField) {
// TODO(titzer): test all load/store representation change insertions.
TestingGraph t(Type::Any(), Type::Signed32());
FieldAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Handle<Name>::null(), Type::Any(),
MachineType::Float64()};
Node* load = t.graph()->NewNode(t.simplified()->LoadField(access), t.p0,
t.start, t.start);
t.Return(load);
t.Lower();
CHECK_EQ(IrOpcode::kLoadField, load->opcode());
CHECK_EQ(t.p0, load->InputAt(0));
CheckChangeOf(IrOpcode::kChangeFloat64ToTagged, load, t.ret->InputAt(0));
}
TEST(InsertChangeForStoreElement) {
// TODO(titzer): test all load/store representation change insertions.
TestingGraph t(Type::Any(), Type::Signed32());
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize, Type::Any(),
MachineType::Float64()};
Node* store =
t.graph()->NewNode(t.simplified()->StoreElement(access), t.p0,
t.jsgraph.Int32Constant(0), t.p1, t.start, t.start);
t.Effect(store);
t.Lower();
CHECK_EQ(IrOpcode::kStoreElement, store->opcode());
CHECK_EQ(t.p0, store->InputAt(0));
CheckChangeOf(IrOpcode::kChangeTaggedToFloat64, t.p1, store->InputAt(2));
}
TEST(InsertChangeForStoreField) {
// TODO(titzer): test all load/store representation change insertions.
TestingGraph t(Type::Any(), Type::Signed32());
FieldAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Handle<Name>::null(), Type::Any(),
MachineType::Float64()};
Node* store = t.graph()->NewNode(t.simplified()->StoreField(access), t.p0,
t.p1, t.start, t.start);
t.Effect(store);
t.Lower();
CHECK_EQ(IrOpcode::kStoreField, store->opcode());
CHECK_EQ(t.p0, store->InputAt(0));
CheckChangeOf(IrOpcode::kChangeTaggedToFloat64, t.p1, store->InputAt(1));
}
TEST(UpdatePhi) {
TestingGraph t(Type::Any(), Type::Signed32());
static const MachineType kMachineTypes[] = {
MachineType::Int32(), MachineType::Uint32(), MachineType::Float64()};
Type* kTypes[] = {Type::Signed32(), Type::Unsigned32(), Type::Number()};
for (size_t i = 0; i < arraysize(kMachineTypes); i++) {
FieldAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Handle<Name>::null(), kTypes[i], kMachineTypes[i]};
Node* load0 = t.graph()->NewNode(t.simplified()->LoadField(access), t.p0,
t.start, t.start);
Node* load1 = t.graph()->NewNode(t.simplified()->LoadField(access), t.p1,
t.start, t.start);
Node* phi =
t.graph()->NewNode(t.common()->Phi(MachineRepresentation::kTagged, 2),
load0, load1, t.start);
t.Return(t.Use(phi, kMachineTypes[i]));
t.Lower();
CHECK_EQ(IrOpcode::kPhi, phi->opcode());
CHECK_EQ(kMachineTypes[i].representation(), PhiRepresentationOf(phi->op()));
}
}
TEST(RunNumberDivide_minus_1_TruncatingToInt32) {
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
Node* num = t.NumberToInt32(t.Parameter(0));
Node* div = t.NumberDivide(num, t.jsgraph.Constant(-1));
Node* trunc = t.NumberToInt32(div);
t.Return(trunc);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
FOR_INT32_INPUTS(i) {
int32_t x = 0 - *i;
t.CheckNumberCall(static_cast<double>(x), static_cast<double>(*i));
}
}
TEST(RunNumberMultiply_TruncatingToInt32) {
int32_t constants[] = {-100, -10, -1, 0, 1, 100, 1000, 3000999};
for (size_t i = 0; i < arraysize(constants); i++) {
double k = static_cast<double>(constants[i]);
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
Node* num = t.NumberToInt32(t.Parameter(0));
Node* mul = t.NumberMultiply(num, t.jsgraph.Constant(k));
Node* trunc = t.NumberToInt32(mul);
t.Return(trunc);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
FOR_INT32_INPUTS(i) {
int32_t x = DoubleToInt32(static_cast<double>(*i) * k);
t.CheckNumberCall(static_cast<double>(x), static_cast<double>(*i));
}
}
}
TEST(RunNumberMultiply_TruncatingToUint32) {
uint32_t constants[] = {0, 1, 2, 3, 4, 100, 1000, 1024, 2048, 3000999};
for (size_t i = 0; i < arraysize(constants); i++) {
double k = static_cast<double>(constants[i]);
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
Node* num = t.NumberToUint32(t.Parameter(0));
Node* mul = t.NumberMultiply(num, t.jsgraph.Constant(k));
Node* trunc = t.NumberToUint32(mul);
t.Return(trunc);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
FOR_UINT32_INPUTS(i) {
uint32_t x = DoubleToUint32(static_cast<double>(*i) * k);
t.CheckNumberCall(static_cast<double>(x), static_cast<double>(*i));
}
}
}
TEST(RunNumberDivide_2_TruncatingToUint32) {
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
Node* num = t.NumberToUint32(t.Parameter(0));
Node* div = t.NumberDivide(num, t.jsgraph.Constant(2));
Node* trunc = t.NumberToUint32(div);
t.Return(trunc);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
FOR_UINT32_INPUTS(i) {
uint32_t x = DoubleToUint32(static_cast<double>(*i / 2.0));
t.CheckNumberCall(static_cast<double>(x), static_cast<double>(*i));
}
}
TEST(NumberMultiply_ConstantOutOfRange) {
TestingGraph t(Type::Signed32());
Node* k = t.jsgraph.Constant(1000000023);
Node* mul = t.graph()->NewNode(t.simplified()->NumberMultiply(), t.p0, k);
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToInt32(), mul);
t.Return(trunc);
t.Lower();
CHECK_EQ(IrOpcode::kFloat64Mul, mul->opcode());
}
TEST(NumberMultiply_NonTruncating) {
TestingGraph t(Type::Signed32());
Node* k = t.jsgraph.Constant(111);
Node* mul = t.graph()->NewNode(t.simplified()->NumberMultiply(), t.p0, k);
t.Return(mul);
t.Lower();
CHECK_EQ(IrOpcode::kFloat64Mul, mul->opcode());
}
TEST(NumberDivide_TruncatingToInt32) {
int32_t constants[] = {-100, -10, 1, 4, 100, 1000};
for (size_t i = 0; i < arraysize(constants); i++) {
TestingGraph t(Type::Signed32());
Node* k = t.jsgraph.Constant(constants[i]);
Node* div = t.graph()->NewNode(t.simplified()->NumberDivide(), t.p0, k);
Node* use = t.Use(div, MachineType::Int32());
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kInt32Div, use->InputAt(0)->opcode());
}
}
TEST(RunNumberDivide_TruncatingToInt32) {
int32_t constants[] = {-100, -10, -1, 1, 2, 100, 1000, 1024, 2048};
for (size_t i = 0; i < arraysize(constants); i++) {
int32_t k = constants[i];
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
Node* num = t.NumberToInt32(t.Parameter(0));
Node* div = t.NumberDivide(num, t.jsgraph.Constant(k));
Node* trunc = t.NumberToInt32(div);
t.Return(trunc);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
FOR_INT32_INPUTS(i) {
if (*i == INT_MAX) continue; // exclude max int.
int32_t x = DoubleToInt32(static_cast<double>(*i) / k);
t.CheckNumberCall(static_cast<double>(x), static_cast<double>(*i));
}
}
}
TEST(NumberDivide_TruncatingToUint32) {
double constants[] = {1, 3, 100, 1000, 100998348};
for (size_t i = 0; i < arraysize(constants); i++) {
TestingGraph t(Type::Unsigned32());
Node* k = t.jsgraph.Constant(constants[i]);
Node* div = t.graph()->NewNode(t.simplified()->NumberDivide(), t.p0, k);
Node* use = t.Use(div, MachineType::Uint32());
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kUint32Div, use->InputAt(0)->opcode());
}
}
TEST(RunNumberDivide_TruncatingToUint32) {
uint32_t constants[] = {100, 10, 1, 1, 2, 4, 1000, 1024, 2048};
for (size_t i = 0; i < arraysize(constants); i++) {
uint32_t k = constants[i];
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
Node* num = t.NumberToUint32(t.Parameter(0));
Node* div = t.NumberDivide(num, t.jsgraph.Constant(static_cast<double>(k)));
Node* trunc = t.NumberToUint32(div);
t.Return(trunc);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
FOR_UINT32_INPUTS(i) {
uint32_t x = *i / k;
t.CheckNumberCall(static_cast<double>(x), static_cast<double>(*i));
}
}
}
TEST(NumberDivide_BadConstants) {
{
TestingGraph t(Type::Signed32());
Node* k = t.jsgraph.Constant(-1);
Node* div = t.graph()->NewNode(t.simplified()->NumberDivide(), t.p0, k);
Node* use = t.Use(div, MachineType::Int32());
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kInt32Sub, use->InputAt(0)->opcode());
}
{
TestingGraph t(Type::Signed32());
Node* k = t.jsgraph.Constant(0);
Node* div = t.graph()->NewNode(t.simplified()->NumberDivide(), t.p0, k);
Node* use = t.Use(div, MachineType::Int32());
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kInt32Constant, use->InputAt(0)->opcode());
CHECK_EQ(0, OpParameter<int32_t>(use->InputAt(0)));
}
{
TestingGraph t(Type::Unsigned32());
Node* k = t.jsgraph.Constant(0);
Node* div = t.graph()->NewNode(t.simplified()->NumberDivide(), t.p0, k);
Node* use = t.Use(div, MachineType::Uint32());
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kInt32Constant, use->InputAt(0)->opcode());
CHECK_EQ(0, OpParameter<int32_t>(use->InputAt(0)));
}
}
TEST(NumberModulus_TruncatingToInt32) {
int32_t constants[] = {-100, -10, 1, 4, 100, 1000};
for (size_t i = 0; i < arraysize(constants); i++) {
TestingGraph t(Type::Signed32());
Node* k = t.jsgraph.Constant(constants[i]);
Node* mod = t.graph()->NewNode(t.simplified()->NumberModulus(), t.p0, k);
Node* use = t.Use(mod, MachineType::Int32());
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kInt32Mod, use->InputAt(0)->opcode());
}
}
TEST(RunNumberModulus_TruncatingToInt32) {
int32_t constants[] = {-100, -10, -1, 1, 2, 100, 1000, 1024, 2048};
for (size_t i = 0; i < arraysize(constants); i++) {
int32_t k = constants[i];
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
Node* num = t.NumberToInt32(t.Parameter(0));
Node* mod = t.NumberModulus(num, t.jsgraph.Constant(k));
Node* trunc = t.NumberToInt32(mod);
t.Return(trunc);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
FOR_INT32_INPUTS(i) {
if (*i == INT_MAX) continue; // exclude max int.
int32_t x = DoubleToInt32(std::fmod(static_cast<double>(*i), k));
t.CheckNumberCall(static_cast<double>(x), static_cast<double>(*i));
}
}
}
TEST(NumberModulus_TruncatingToUint32) {
double constants[] = {1, 3, 100, 1000, 100998348};
for (size_t i = 0; i < arraysize(constants); i++) {
TestingGraph t(Type::Unsigned32());
Node* k = t.jsgraph.Constant(constants[i]);
Node* mod = t.graph()->NewNode(t.simplified()->NumberModulus(), t.p0, k);
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToUint32(), mod);
t.Return(trunc);
t.Lower();
CHECK_EQ(IrOpcode::kUint32Mod, t.ret->InputAt(0)->InputAt(0)->opcode());
}
}
TEST(RunNumberModulus_TruncatingToUint32) {
uint32_t constants[] = {1, 2, 100, 1000, 1024, 2048};
for (size_t i = 0; i < arraysize(constants); i++) {
uint32_t k = constants[i];
SimplifiedLoweringTester<Object*> t(MachineType::AnyTagged());
Node* num = t.NumberToUint32(t.Parameter(0));
Node* mod =
t.NumberModulus(num, t.jsgraph.Constant(static_cast<double>(k)));
Node* trunc = t.NumberToUint32(mod);
t.Return(trunc);
t.LowerAllNodesAndLowerChanges();
t.GenerateCode();
FOR_UINT32_INPUTS(i) {
uint32_t x = *i % k;
t.CheckNumberCall(static_cast<double>(x), static_cast<double>(*i));
}
}
}
TEST(NumberModulus_Int32) {
int32_t constants[] = {-100, -10, 1, 4, 100, 1000};
for (size_t i = 0; i < arraysize(constants); i++) {
TestingGraph t(Type::Signed32());
Node* k = t.jsgraph.Constant(constants[i]);
Node* mod = t.graph()->NewNode(t.simplified()->NumberModulus(), t.p0, k);
t.Return(mod);
t.Lower();
CHECK_EQ(IrOpcode::kFloat64Mod, mod->opcode()); // Pesky -0 behavior.
}
}
TEST(NumberModulus_Uint32) {
const double kConstants[] = {2, 100, 1000, 1024, 2048};
const MachineType kTypes[] = {MachineType::Int32(), MachineType::Uint32()};
for (auto const type : kTypes) {
for (auto const c : kConstants) {
TestingGraph t(Type::Unsigned32());
Node* k = t.jsgraph.Constant(c);
Node* mod = t.graph()->NewNode(t.simplified()->NumberModulus(), t.p0, k);
Node* use = t.Use(mod, type);
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kUint32Mod, use->InputAt(0)->opcode());
}
}
}
TEST(PhiRepresentation) {
HandleAndZoneScope scope;
Zone* z = scope.main_zone();
struct TestData {
Type* arg1;
Type* arg2;
MachineType use;
MachineRepresentation expected;
};
TestData test_data[] = {
{Type::Signed32(), Type::Unsigned32(), MachineType::Int32(),
MachineRepresentation::kWord32},
{Type::Signed32(), Type::Unsigned32(), MachineType::Uint32(),
MachineRepresentation::kWord32},
{Type::Signed32(), Type::Signed32(), MachineType::Int32(),
MachineRepresentation::kWord32},
{Type::Unsigned32(), Type::Unsigned32(), MachineType::Int32(),
MachineRepresentation::kWord32},
{Type::Number(), Type::Signed32(), MachineType::Int32(),
MachineRepresentation::kWord32}};
for (auto const d : test_data) {
TestingGraph t(d.arg1, d.arg2, Type::Boolean());
Node* br = t.graph()->NewNode(t.common()->Branch(), t.p2, t.start);
Node* tb = t.graph()->NewNode(t.common()->IfTrue(), br);
Node* fb = t.graph()->NewNode(t.common()->IfFalse(), br);
Node* m = t.graph()->NewNode(t.common()->Merge(2), tb, fb);
Node* phi = t.graph()->NewNode(
t.common()->Phi(MachineRepresentation::kTagged, 2), t.p0, t.p1, m);
Type* phi_type = Type::Union(d.arg1, d.arg2, z);
NodeProperties::SetType(phi, phi_type);
Node* use = t.Use(phi, d.use);
t.Return(use);
t.Lower();
CHECK_EQ(d.expected, PhiRepresentationOf(phi->op()));
}
}
} // namespace compiler
} // namespace internal
} // namespace v8
Reference in New Issue View Git Blame Copy Permalink