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bfa3884ae0
v8/test/cctest/compiler/test-simplified-lowering.cc
bmeurer@chromium.org bfa3884ae0 [turbofan] Machine operators are globally shared singletons. 
TEST=compiler-unittests,cctest
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/547233003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23864 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-09-11 10:37:49 +00:00

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// 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/compiler/access-builder.h"
#include "src/compiler/control-builders.h"
#include "src/compiler/generic-node-inl.h"
#include "src/compiler/graph-visualizer.h"
#include "src/compiler/node-properties-inl.h"
#include "src/compiler/pipeline.h"
#include "src/compiler/representation-change.h"
#include "src/compiler/simplified-lowering.h"
#include "src/compiler/typer.h"
#include "src/compiler/verifier.h"
#include "src/execution.h"
#include "src/parser.h"
#include "src/rewriter.h"
#include "src/scopes.h"
#include "test/cctest/cctest.h"
#include "test/cctest/compiler/codegen-tester.h"
#include "test/cctest/compiler/graph-builder-tester.h"
#include "test/cctest/compiler/value-helper.h"
using namespace v8::internal;
using namespace v8::internal::compiler;
template <typename ReturnType>
class SimplifiedLoweringTester : public GraphBuilderTester<ReturnType> {
public:
SimplifiedLoweringTester(MachineType p0 = kMachNone,
MachineType p1 = kMachNone,
MachineType p2 = kMachNone,
MachineType p3 = kMachNone,
MachineType p4 = kMachNone)
: GraphBuilderTester<ReturnType>(p0, p1, p2, p3, p4),
typer(this->zone()),
jsgraph(this->graph(), this->common(), &typer),
lowering(&jsgraph) {}
Typer typer;
JSGraph jsgraph;
SimplifiedLowering lowering;
void LowerAllNodes() {
this->End();
lowering.LowerAllNodes();
}
Factory* factory() { return this->isolate()->factory(); }
Heap* heap() { return this->isolate()->heap(); }
};
#ifndef V8_TARGET_ARCH_ARM64
// TODO(titzer): these result in a stub call that doesn't work on ARM64.
// 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(),
kMachFloat64};
Node* loaded = t.LoadField(load, t.PointerConstant(&input));
Node* convert = t.NumberToInt32(loaded);
FieldAccess store = {kUntaggedBase, 0, Handle<Name>(), Type::Signed32(),
kMachInt32};
t.StoreField(store, t.PointerConstant(&result), convert);
t.Return(t.jsgraph.TrueConstant());
t.LowerAllNodes();
t.GenerateCode();
if (Pipeline::SupportedTarget()) {
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(),
kMachFloat64};
Node* loaded = t.LoadField(load, t.PointerConstant(&input));
Node* convert = t.NumberToUint32(loaded);
FieldAccess store = {kUntaggedBase, 0, Handle<Name>(), Type::Unsigned32(),
kMachUint32};
t.StoreField(store, t.PointerConstant(&result), convert);
t.Return(t.jsgraph.TrueConstant());
t.LowerAllNodes();
t.GenerateCode();
if (Pipeline::SupportedTarget()) {
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));
}
}
}
#endif
// 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(kMachAnyTagged);
FieldAccess access = AccessBuilder::ForMap();
Node* load = t.LoadField(access, t.Parameter(0));
t.Return(load);
t.LowerAllNodes();
t.GenerateCode();
if (Pipeline::SupportedTarget()) {
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(kMachAnyTagged, kMachAnyTagged);
FieldAccess access = AccessBuilder::ForMap();
t.StoreField(access, t.Parameter(1), t.Parameter(0));
t.Return(t.jsgraph.TrueConstant());
t.LowerAllNodes();
t.GenerateCode();
if (Pipeline::SupportedTarget()) {
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(kMachAnyTagged);
FieldAccess access = AccessBuilder::ForJSObjectProperties();
Node* load = t.LoadField(access, t.Parameter(0));
t.Return(load);
t.LowerAllNodes();
t.GenerateCode();
if (Pipeline::SupportedTarget()) {
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(kMachAnyTagged, kMachAnyTagged);
FieldAccess access = AccessBuilder::ForMap();
Node* load = t.LoadField(access, t.Parameter(0));
t.StoreField(access, t.Parameter(1), load);
t.Return(load);
t.LowerAllNodes();
t.GenerateCode();
if (Pipeline::SupportedTarget()) {
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(kMachAnyTagged);
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.LowerAllNodes();
t.GenerateCode();
if (Pipeline::SupportedTarget()) {
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(kMachAnyTagged);
const int index = 12;
ElementAccess buffer_access =
AccessBuilder::ForBackingStoreElement(kMachInt8);
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.LowerAllNodes();
t.GenerateCode();
if (Pipeline::SupportedTarget()) {
Handle<JSArrayBuffer> array = t.factory()->NewJSArrayBuffer();
const int array_length = 2 * index;
Runtime::SetupArrayBufferAllocatingData(t.isolate(), array, 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(), kMachAnyTagged};
SimplifiedLoweringTester<Object*> t;
Node* load = t.LoadField(access, t.PointerConstant(smis));
t.Return(load);
t.LowerAllNodes();
if (!Pipeline::SupportedTarget()) continue;
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(), kMachAnyTagged};
SimplifiedLoweringTester<Object*> t(kMachAnyTagged);
Node* p0 = t.Parameter(0);
t.StoreField(access, t.PointerConstant(smis), p0);
t.Return(p0);
t.LowerAllNodes();
if (!Pipeline::SupportedTarget()) continue;
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(),
kMachAnyTagged};
SimplifiedLoweringTester<Object*> t;
Node* load = t.LoadElement(access, t.PointerConstant(smis),
t.Int32Constant(static_cast<int>(j)));
t.Return(load);
t.LowerAllNodes();
if (!Pipeline::SupportedTarget()) continue;
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(),
kMachAnyTagged};
SimplifiedLoweringTester<Object*> t(kMachAnyTagged);
Node* p0 = t.Parameter(0);
t.StoreElement(access, t.PointerConstant(smis),
t.Int32Constant(static_cast<int>(j)), p0);
t.Return(p0);
t.LowerAllNodes();
if (!Pipeline::SupportedTarget()) continue;
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.LowerAllNodes();
t.GenerateCode();
if (Pipeline::SupportedTarget()) {
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.LowerAllNodes();
t.GenerateCode();
if (Pipeline::SupportedTarget()) {
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();
if (Pipeline::SupportedTarget()) {
Object* result = t.Call();
CHECK_EQ(t.isolate()->heap()->true_value(), result);
}
#endif
}
E GetElement(int index) {
BoundsCheck(index);
if (tagged) {
E* raw = reinterpret_cast<E*>(tagged_array->GetDataStartAddress());
return raw[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());
}
};
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.
}
if (Pipeline::SupportedTarget()) { // verify.
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);
if (Pipeline::SupportedTarget()) { // verify.
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>(kMachInt8, data, arraysize(data));
}
TEST(RunAccessTests_uint16) {
uint16_t data[] = {0x071a, 0x162b, 0x253c, 0x344d, 0x435e, 0x7777};
RunAccessTest<uint16_t>(kMachInt16, data, arraysize(data));
}
TEST(RunAccessTests_int32) {
int32_t data[] = {-211, 211, 628347, 2000000000, -2000000000, -1, -100000034};
RunAccessTest<int32_t>(kMachInt32, 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>(kMachInt64, data, arraysize(data));
}
TEST(RunAccessTests_float64) {
double data[] = {1.25, -1.25, 2.75, 11.0, 11100.8};
RunAccessTest<double>(kMachFloat64, 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*>(kMachAnyTagged, data, arraysize(data));
}
// Fills in most of the nodes of the graph in order to make tests shorter.
class TestingGraph : public HandleAndZoneScope, public GraphAndBuilders {
public:
Typer typer;
JSGraph jsgraph;
Node* p0;
Node* p1;
Node* start;
Node* end;
Node* ret;
explicit TestingGraph(Type* p0_type, Type* p1_type = Type::None())
: GraphAndBuilders(main_zone()),
typer(main_zone()),
jsgraph(graph(), common(), &typer) {
start = graph()->NewNode(common()->Start(2));
graph()->SetStart(start);
ret =
graph()->NewNode(common()->Return(), jsgraph.Constant(0), start, start);
end = graph()->NewNode(common()->End(), ret);
graph()->SetEnd(end);
p0 = graph()->NewNode(common()->Parameter(0), start);
p1 = graph()->NewNode(common()->Parameter(1), start);
NodeProperties::SetBounds(p0, Bounds(p0_type));
NodeProperties::SetBounds(p1, Bounds(p1_type));
}
void CheckLoweringBinop(IrOpcode::Value expected, const Operator* op) {
Node* node = Return(graph()->NewNode(op, p0, p1));
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() {
SimplifiedLowering lowering(&jsgraph);
lowering.LowerAllNodes();
}
// 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) {
// TODO(titzer): use parameters with guaranteed representations.
if (type & kTypeInt32) {
return graph()->NewNode(machine()->Int32Add(), jsgraph.Int32Constant(1),
jsgraph.Int32Constant(1));
} else if (type & kTypeUint32) {
return graph()->NewNode(machine()->Word32Shr(), jsgraph.Int32Constant(1),
jsgraph.Int32Constant(1));
} else if (type & kRepFloat64) {
return graph()->NewNode(machine()->Float64Add(),
jsgraph.Float64Constant(1),
jsgraph.Float64Constant(1));
} else if (type & kRepBit) {
return graph()->NewNode(machine()->Word32Equal(),
jsgraph.Int32Constant(1),
jsgraph.Int32Constant(1));
} else if (type & kRepWord64) {
return graph()->NewNode(machine()->Int64Add(), Int64Constant(1),
Int64Constant(1));
} else {
CHECK(type & kRepTagged);
return p0;
}
}
Node* Use(Node* node, MachineType type) {
if (type & kTypeInt32) {
return graph()->NewNode(machine()->Int32LessThan(), node,
jsgraph.Int32Constant(1));
} else if (type & kTypeUint32) {
return graph()->NewNode(machine()->Uint32LessThan(), node,
jsgraph.Int32Constant(1));
} else if (type & kRepFloat64) {
return graph()->NewNode(machine()->Float64Add(), node,
jsgraph.Float64Constant(1));
} else if (type & kRepWord64) {
return graph()->NewNode(machine()->Int64LessThan(), node,
Int64Constant(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(kRepBit);
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.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(kRepBit);
Node* inv = t.graph()->NewNode(t.simplified()->BooleanNot(), b);
Node* use = t.Use(inv, kRepTagged);
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kChangeBitToBool, 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.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, kRepTagged);
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kChangeBitToBool, 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));
}
static Type* test_types[] = {Type::Signed32(), Type::Unsigned32(),
Type::Number(), Type::Any()};
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) {
static Type* types[] = {Type::Number(), Type::Any()};
for (size_t i = 0; i < arraysize(types); i++) {
TestingGraph t(types[i], types[i]);
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) {
TestingGraph t(Type::Signed32(), Type::Signed32());
t.CheckLoweringTruncatedBinop(IrOpcode::kInt32Add,
t.simplified()->NumberAdd(),
t.simplified()->NumberToInt32());
t.CheckLoweringTruncatedBinop(IrOpcode::kInt32Sub,
t.simplified()->NumberSubtract(),
t.simplified()->NumberToInt32());
}
TEST(LowerNumberAddSub_to_uint32) {
TestingGraph t(Type::Unsigned32(), Type::Unsigned32());
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());
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_nop) {
// NumberToInt32(x: kRepTagged | kTypeInt32) used as kRepTagged
TestingGraph t(Type::Signed32());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToInt32(), t.p0);
Node* use = t.Use(trunc, kRepTagged);
t.Return(use);
t.Lower();
CHECK_EQ(t.p0, use->InputAt(0));
}
TEST(LowerNumberToInt32_to_ChangeTaggedToFloat64) {
// NumberToInt32(x: kRepTagged | kTypeInt32) used as kRepFloat64
TestingGraph t(Type::Signed32());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToInt32(), t.p0);
Node* use = t.Use(trunc, kRepFloat64);
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kChangeTaggedToFloat64, t.p0, use->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, kTypeInt32);
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kChangeTaggedToInt32, t.p0, use->InputAt(0));
}
TEST(LowerNumberToInt32_to_TruncateFloat64ToInt32) {
// NumberToInt32(x: kRepFloat64) used as kMachInt32
TestingGraph t(Type::Number());
Node* p0 = t.ExampleWithOutput(kMachFloat64);
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToInt32(), p0);
Node* use = t.Use(trunc, kMachInt32);
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kTruncateFloat64ToInt32, p0, use->InputAt(0));
}
TEST(LowerNumberToInt32_to_TruncateFloat64ToInt32_with_change) {
// NumberToInt32(x: kTypeNumber | kRepTagged) used as kMachInt32
TestingGraph t(Type::Number());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToInt32(), t.p0);
Node* use = t.Use(trunc, kMachInt32);
t.Return(use);
t.Lower();
Node* node = use->InputAt(0);
CHECK_EQ(IrOpcode::kTruncateFloat64ToInt32, node->opcode());
Node* of = node->InputAt(0);
CHECK_EQ(IrOpcode::kChangeTaggedToFloat64, of->opcode());
CHECK_EQ(t.p0, of->InputAt(0));
}
TEST(LowerNumberToInt32_to_ChangeFloat64ToTagged) {
// TODO(titzer): NumberToInt32(x: kRepFloat64 | kTypeInt32) used as kRepTagged
}
TEST(LowerNumberToInt32_to_ChangeFloat64ToInt32) {
// TODO(titzer): NumberToInt32(x: kRepFloat64 | kTypeInt32) used as kRepWord32
// | kTypeInt32
}
TEST(LowerNumberToUint32_to_nop) {
// NumberToUint32(x: kRepTagged | kTypeUint32) used as kRepTagged
TestingGraph t(Type::Unsigned32());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToUint32(), t.p0);
Node* use = t.Use(trunc, kRepTagged);
t.Return(use);
t.Lower();
CHECK_EQ(t.p0, use->InputAt(0));
}
TEST(LowerNumberToUint32_to_ChangeTaggedToFloat64) {
// 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, kRepFloat64);
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kChangeTaggedToFloat64, 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, kTypeUint32);
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kChangeTaggedToUint32, t.p0, use->InputAt(0));
}
TEST(LowerNumberToUint32_to_TruncateFloat64ToInt32) {
// NumberToUint32(x: kRepFloat64) used as kMachUint32
TestingGraph t(Type::Number());
Node* p0 = t.ExampleWithOutput(kMachFloat64);
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToUint32(), p0);
Node* use = t.Use(trunc, kMachUint32);
t.Return(use);
t.Lower();
CheckChangeOf(IrOpcode::kTruncateFloat64ToInt32, p0, use->InputAt(0));
}
TEST(LowerNumberToUint32_to_TruncateFloat64ToInt32_with_change) {
// NumberToInt32(x: kTypeNumber | kRepTagged) used as kMachUint32
TestingGraph t(Type::Number());
Node* trunc = t.graph()->NewNode(t.simplified()->NumberToUint32(), t.p0);
Node* use = t.Use(trunc, kMachUint32);
t.Return(use);
t.Lower();
Node* node = use->InputAt(0);
CHECK_EQ(IrOpcode::kTruncateFloat64ToInt32, node->opcode());
Node* of = node->InputAt(0);
CHECK_EQ(IrOpcode::kChangeTaggedToFloat64, of->opcode());
CHECK_EQ(t.p0, of->InputAt(0));
}
TEST(LowerNumberToUint32_to_ChangeFloat64ToTagged) {
// TODO(titzer): NumberToUint32(x: kRepFloat64 | kTypeUint32) used as
// kRepTagged
}
TEST(LowerNumberToUint32_to_ChangeFloat64ToUint32) {
// TODO(titzer): NumberToUint32(x: kRepFloat64 | kTypeUint32) used as
// kRepWord32
}
TEST(LowerNumberToUint32_to_TruncateFloat64ToUint32) {
// TODO(titzer): NumberToUint32(x: kRepFloat64) used as kRepWord32
}
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()));
}
TEST(LowerStringOps_to_call_and_compare) {
if (Pipeline::SupportedTarget()) {
// These tests need linkage for the calls.
TestingGraph t(Type::String(), Type::String());
IrOpcode::Value compare_eq =
static_cast<IrOpcode::Value>(t.machine()->WordEqual()->opcode());
IrOpcode::Value compare_lt =
static_cast<IrOpcode::Value>(t.machine()->IntLessThan()->opcode());
IrOpcode::Value compare_le = static_cast<IrOpcode::Value>(
t.machine()->IntLessThanOrEqual()->opcode());
t.CheckLoweringBinop(compare_eq, t.simplified()->StringEqual());
t.CheckLoweringBinop(compare_lt, t.simplified()->StringLessThan());
t.CheckLoweringBinop(compare_le, t.simplified()->StringLessThanOrEqual());
t.CheckLoweringBinop(IrOpcode::kCall, t.simplified()->StringAdd());
}
}
void CheckChangeInsertion(IrOpcode::Value expected, MachineType from,
MachineType to) {
TestingGraph t(Type::Any());
Node* in = t.ExampleWithOutput(from);
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, kRepFloat64,
kTypeInt32);
CheckChangeInsertion(IrOpcode::kChangeFloat64ToUint32, kRepFloat64,
kTypeUint32);
CheckChangeInsertion(IrOpcode::kChangeTaggedToInt32, kRepTagged, kTypeInt32);
CheckChangeInsertion(IrOpcode::kChangeTaggedToUint32, kRepTagged,
kTypeUint32);
CheckChangeInsertion(IrOpcode::kChangeFloat64ToTagged, kRepFloat64,
kRepTagged);
CheckChangeInsertion(IrOpcode::kChangeTaggedToFloat64, kRepTagged,
kRepFloat64);
CheckChangeInsertion(IrOpcode::kChangeInt32ToFloat64, kTypeInt32,
kRepFloat64);
CheckChangeInsertion(IrOpcode::kChangeInt32ToTagged, kTypeInt32, kRepTagged);
CheckChangeInsertion(IrOpcode::kChangeUint32ToFloat64, kTypeUint32,
kRepFloat64);
CheckChangeInsertion(IrOpcode::kChangeUint32ToTagged, kTypeUint32,
kRepTagged);
}
static void CheckChangesAroundBinop(TestingGraph* t, const Operator* op,
IrOpcode::Value input_change,
IrOpcode::Value output_change) {
Node* binop = t->graph()->NewNode(op, t->p0, t->p1);
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);
}
}
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::kChangeBitToBool);
}
}
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::kChangeBitToBool);
}
}
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::kChangeBitToBool);
}
}
void CheckFieldAccessArithmetic(FieldAccess access, Node* load_or_store) {
Int32Matcher index = Int32Matcher(load_or_store->InputAt(1));
CHECK(index.Is(access.offset - access.tag()));
}
Node* CheckElementAccessArithmetic(ElementAccess access, Node* load_or_store) {
Int32BinopMatcher index(load_or_store->InputAt(1));
CHECK_EQ(IrOpcode::kInt32Add, index.node()->opcode());
CHECK(index.right().Is(access.header_size - access.tag()));
int element_size = ElementSizeOf(access.machine_type);
if (element_size != 1) {
Int32BinopMatcher mul(index.left().node());
CHECK_EQ(IrOpcode::kInt32Mul, mul.node()->opcode());
CHECK(mul.right().Is(element_size));
return mul.left().node();
} else {
return index.left().node();
}
}
static const MachineType machine_reps[] = {
kRepBit, kMachInt8, kMachInt16, kMachInt32,
kMachInt64, kMachFloat64, kMachAnyTagged};
TEST(LowerLoadField_to_load) {
TestingGraph t(Type::Any(), Type::Signed32());
for (size_t i = 0; i < arraysize(machine_reps); i++) {
FieldAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Handle<Name>::null(), Type::Any(), machine_reps[i]};
Node* load =
t.graph()->NewNode(t.simplified()->LoadField(access), t.p0, t.start);
Node* use = t.Use(load, machine_reps[i]);
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kLoad, load->opcode());
CHECK_EQ(t.p0, load->InputAt(0));
CheckFieldAccessArithmetic(access, load);
MachineType rep = OpParameter<MachineType>(load);
CHECK_EQ(machine_reps[i], rep);
}
}
TEST(LowerStoreField_to_store) {
TestingGraph t(Type::Any(), Type::Signed32());
for (size_t i = 0; i < arraysize(machine_reps); i++) {
FieldAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Handle<Name>::null(), Type::Any(), machine_reps[i]};
Node* val = t.ExampleWithOutput(machine_reps[i]);
Node* store = t.graph()->NewNode(t.simplified()->StoreField(access), t.p0,
val, t.start, t.start);
t.Effect(store);
t.Lower();
CHECK_EQ(IrOpcode::kStore, store->opcode());
CHECK_EQ(val, store->InputAt(2));
CheckFieldAccessArithmetic(access, store);
StoreRepresentation rep = OpParameter<StoreRepresentation>(store);
if (machine_reps[i] & kRepTagged) {
CHECK_EQ(kFullWriteBarrier, rep.write_barrier_kind());
}
CHECK_EQ(machine_reps[i], rep.machine_type());
}
}
TEST(LowerLoadElement_to_load) {
TestingGraph t(Type::Any(), Type::Signed32());
for (size_t i = 0; i < arraysize(machine_reps); i++) {
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Type::Any(), machine_reps[i]};
Node* load = t.graph()->NewNode(t.simplified()->LoadElement(access), t.p0,
t.p1, t.start);
Node* use = t.Use(load, machine_reps[i]);
t.Return(use);
t.Lower();
CHECK_EQ(IrOpcode::kLoad, load->opcode());
CHECK_EQ(t.p0, load->InputAt(0));
CheckElementAccessArithmetic(access, load);
MachineType rep = OpParameter<MachineType>(load);
CHECK_EQ(machine_reps[i], rep);
}
}
TEST(LowerStoreElement_to_store) {
TestingGraph t(Type::Any(), Type::Signed32());
for (size_t i = 0; i < arraysize(machine_reps); i++) {
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Type::Any(), machine_reps[i]};
Node* val = t.ExampleWithOutput(machine_reps[i]);
Node* store = t.graph()->NewNode(t.simplified()->StoreElement(access), t.p0,
t.p1, val, t.start, t.start);
t.Effect(store);
t.Lower();
CHECK_EQ(IrOpcode::kStore, store->opcode());
CHECK_EQ(val, store->InputAt(2));
CheckElementAccessArithmetic(access, store);
StoreRepresentation rep = OpParameter<StoreRepresentation>(store);
if (machine_reps[i] & kRepTagged) {
CHECK_EQ(kFullWriteBarrier, rep.write_barrier_kind());
}
CHECK_EQ(machine_reps[i], rep.machine_type());
}
}
TEST(InsertChangeForLoadElementIndex) {
// LoadElement(obj: Tagged, index: kTypeInt32 | kRepTagged) =>
// Load(obj, Int32Add(Int32Mul(ChangeTaggedToInt32(index), #k), #k))
TestingGraph t(Type::Any(), Type::Signed32());
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize, Type::Any(),
kMachAnyTagged};
Node* load = t.graph()->NewNode(t.simplified()->LoadElement(access), t.p0,
t.p1, t.start);
t.Return(load);
t.Lower();
CHECK_EQ(IrOpcode::kLoad, load->opcode());
CHECK_EQ(t.p0, load->InputAt(0));
Node* index = CheckElementAccessArithmetic(access, load);
CheckChangeOf(IrOpcode::kChangeTaggedToInt32, t.p1, index);
}
TEST(InsertChangeForStoreElementIndex) {
// StoreElement(obj: Tagged, index: kTypeInt32 | kRepTagged, val) =>
// Store(obj, Int32Add(Int32Mul(ChangeTaggedToInt32(index), #k), #k), val)
TestingGraph t(Type::Any(), Type::Signed32());
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize, Type::Any(),
kMachAnyTagged};
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::kStore, store->opcode());
CHECK_EQ(t.p0, store->InputAt(0));
Node* index = CheckElementAccessArithmetic(access, store);
CheckChangeOf(IrOpcode::kChangeTaggedToInt32, t.p1, index);
}
TEST(InsertChangeForLoadElement) {
// TODO(titzer): test all load/store representation change insertions.
TestingGraph t(Type::Any(), Type::Signed32());
ElementAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize, Type::Any(),
kMachFloat64};
Node* load = t.graph()->NewNode(t.simplified()->LoadElement(access), t.p0,
t.p1, t.start);
t.Return(load);
t.Lower();
CHECK_EQ(IrOpcode::kLoad, 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(), kMachFloat64};
Node* load =
t.graph()->NewNode(t.simplified()->LoadField(access), t.p0, t.start);
t.Return(load);
t.Lower();
CHECK_EQ(IrOpcode::kLoad, 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(),
kMachFloat64};
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::kStore, 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(), kMachFloat64};
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::kStore, store->opcode());
CHECK_EQ(t.p0, store->InputAt(0));
CheckChangeOf(IrOpcode::kChangeTaggedToFloat64, t.p1, store->InputAt(2));
}
TEST(UpdatePhi) {
TestingGraph t(Type::Any(), Type::Signed32());
static const MachineType kMachineTypes[] = {kMachInt32, kMachUint32,
kMachFloat64};
for (size_t i = 0; i < arraysize(kMachineTypes); i++) {
FieldAccess access = {kTaggedBase, FixedArrayBase::kHeaderSize,
Handle<Name>::null(), Type::Any(), kMachineTypes[i]};
Node* load0 =
t.graph()->NewNode(t.simplified()->LoadField(access), t.p0, t.start);
Node* load1 =
t.graph()->NewNode(t.simplified()->LoadField(access), t.p1, t.start);
Node* phi = t.graph()->NewNode(t.common()->Phi(kMachAnyTagged, 2), load0,
load1, t.start);
t.Return(t.Use(phi, kMachineTypes[i]));
t.Lower();
CHECK_EQ(IrOpcode::kPhi, phi->opcode());
CHECK_EQ(RepresentationOf(kMachineTypes[i]),
RepresentationOf(OpParameter<MachineType>(phi)));
}
}
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