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v8/test/cctest/torque/test-torque.cc
Tobias Tebbi 0a95a99255 [torque] references and slices to off-heap data 
This uses the old trick from TypedArrays: a Smi-like all zero
pattern plus an offset that actually contains a raw address to access
off-heap data.

Bug: v8:7793
Change-Id: Ia44448d4ff7e2dcaa02a2c5653f622fb93c3dd09
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2534817
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71287}
2020-11-19 16:20:56 +00:00

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// Copyright 2015 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 <cmath>
#include "src/api/api-inl.h"
#include "src/base/utils/random-number-generator.h"
#include "src/builtins/builtins-promise-gen.h"
#include "src/builtins/builtins-string-gen.h"
#include "src/codegen/code-factory.h"
#include "src/codegen/code-stub-assembler.h"
#include "src/compiler/node.h"
#include "src/debug/debug.h"
#include "src/execution/isolate.h"
#include "src/objects/elements-kind.h"
#include "src/objects/objects-inl.h"
#include "src/objects/promise-inl.h"
#include "src/objects/torque-defined-classes-inl.h"
#include "src/strings/char-predicates.h"
#include "test/cctest/compiler/code-assembler-tester.h"
#include "test/cctest/compiler/function-tester.h"
namespace v8 {
namespace internal {
namespace compiler {
namespace {
class TestTorqueAssembler : public CodeStubAssembler {
public:
explicit TestTorqueAssembler(CodeAssemblerState* state)
: CodeStubAssembler(state) {}
};
} // namespace
TEST(TestConstexpr1) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestConstexpr1();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestConstexprIf) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestConstexprIf();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestConstexprReturn) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestConstexprReturn();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestGotoLabel) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{ m.Return(m.TestGotoLabel()); }
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.CheckCall(ft.true_value());
}
TEST(TestGotoLabelWithOneParameter) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{ m.Return(m.TestGotoLabelWithOneParameter()); }
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.CheckCall(ft.true_value());
}
TEST(TestGotoLabelWithTwoParameters) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{ m.Return(m.TestGotoLabelWithTwoParameters()); }
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.CheckCall(ft.true_value());
}
TEST(TestPartiallyUnusedLabel) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{ m.Return(m.TestPartiallyUnusedLabel()); }
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.CheckCall(ft.true_value());
}
TEST(TestBuiltinSpecialization) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestBuiltinSpecialization();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestMacroSpecialization) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestMacroSpecialization();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestFunctionPointers) {
Isolate* isolate(CcTest::InitIsolateOnce());
const int kNumParams = 0;
CodeAssemblerTester asm_tester(isolate, kNumParams);
TestTorqueAssembler m(asm_tester.state());
{
TNode<Context> context = m.UncheckedParameter<Context>(kNumParams + 2);
m.Return(m.TestFunctionPointers(context));
}
FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
ft.CheckCall(ft.true_value());
}
TEST(TestTernaryOperator) {
Isolate* isolate(CcTest::InitIsolateOnce());
const int kNumParams = 1;
CodeAssemblerTester asm_tester(isolate, kNumParams + 1); // Include receiver.
TestTorqueAssembler m(asm_tester.state());
{
TNode<Smi> arg = m.UncheckedParameter<Smi>(1);
m.Return(m.TestTernaryOperator(arg));
}
FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
Handle<Object> result1 =
ft.Call(Handle<Smi>(Smi::FromInt(-5), isolate)).ToHandleChecked();
CHECK_EQ(-15, Handle<Smi>::cast(result1)->value());
Handle<Object> result2 =
ft.Call(Handle<Smi>(Smi::FromInt(3), isolate)).ToHandleChecked();
CHECK_EQ(103, Handle<Smi>::cast(result2)->value());
}
TEST(TestFunctionPointerToGeneric) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestFunctionPointerToGeneric();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestUnsafeCast) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
TNode<Object> temp = m.SmiConstant(0);
TNode<Smi> n = m.SmiConstant(10);
m.Return(m.TestUnsafeCast(m.UncheckedCast<Context>(temp),
m.UncheckedCast<Number>(n)));
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.CheckCall(ft.true_value());
}
TEST(TestHexLiteral) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestHexLiteral();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestModuleConstBindings) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestModuleConstBindings();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestLocalConstBindings) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestLocalConstBindings();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestForLoop) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestForLoop();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestTypeswitch) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestTypeswitch(m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestGenericOverload) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestGenericOverload(m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestEquality) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestEquality(m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestLogicalOperators) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestLogicalOperators();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestOtherwiseAndLabels) {
Isolate* isolate(CcTest::InitIsolateOnce());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestOtherwiseWithCode1();
m.TestOtherwiseWithCode2();
m.TestOtherwiseWithCode3();
m.TestForwardLabel();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestCatch1) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
TNode<Smi> result =
m.TestCatch1(m.UncheckedCast<Context>(m.HeapConstant(context)));
USE(result);
CSA_ASSERT(&m, m.TaggedEqual(result, m.SmiConstant(1)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestCatch2) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
TNode<Smi> result =
m.TestCatch2(m.UncheckedCast<Context>(m.HeapConstant(context)));
USE(result);
CSA_ASSERT(&m, m.TaggedEqual(result, m.SmiConstant(2)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestCatch3) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
TNode<Smi> result =
m.TestCatch3(m.UncheckedCast<Context>(m.HeapConstant(context)));
USE(result);
CSA_ASSERT(&m, m.TaggedEqual(result, m.SmiConstant(2)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestLookup) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate, 0);
TestTorqueAssembler m(asm_tester.state());
{
m.TestQualifiedAccess(m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestFrame1) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestFrame1(m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestNew) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestNew(m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestStructConstructor) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestStructConstructor(m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestInternalClass) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestInternalClass(m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestNewFixedArrayFromSpread) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestNewFixedArrayFromSpread(
m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestReferences) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestReferences();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestSlices) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestSlices();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestSliceEnumeration) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestSliceEnumeration(m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestStaticAssert) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestStaticAssert();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestLoadEliminationFixed) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestLoadEliminationFixed(
m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
asm_tester.GenerateCode();
}
TEST(TestLoadEliminationVariable) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestLoadEliminationVariable(
m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
asm_tester.GenerateCode();
}
TEST(TestRedundantArrayElementCheck) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.Return(m.TestRedundantArrayElementCheck(
m.UncheckedCast<Context>(m.HeapConstant(context))));
}
asm_tester.GenerateCode();
}
TEST(TestRedundantSmiCheck) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.Return(m.TestRedundantSmiCheck(
m.UncheckedCast<Context>(m.HeapConstant(context))));
}
asm_tester.GenerateCode();
}
TEST(TestGenericStruct1) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{
m.TestGenericStruct1();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestGenericStruct2) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate);
TestTorqueAssembler m(asm_tester.state());
{ m.Return(m.TestGenericStruct2().snd.fst); }
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestBranchOnBoolOptimization) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate, 1);
TestTorqueAssembler m(asm_tester.state());
{
m.TestBranchOnBoolOptimization(
m.UncheckedCast<Context>(m.HeapConstant(context)),
m.UncheckedParameter<Smi>(0));
m.Return(m.UndefinedConstant());
}
asm_tester.GenerateCode();
}
TEST(TestBitFieldLoad) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
const int kNumParams = 5;
CodeAssemblerTester asm_tester(isolate, kNumParams + 1); // Include receiver.
TestTorqueAssembler m(asm_tester.state());
{
// Untag all of the parameters to get plain integer values.
TNode<Uint8T> val =
m.UncheckedCast<Uint8T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(1))));
TNode<BoolT> expected_a =
m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(2))));
TNode<Uint16T> expected_b =
m.UncheckedCast<Uint16T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(3))));
TNode<Uint32T> expected_c =
m.UncheckedCast<Uint32T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(4))));
TNode<BoolT> expected_d =
m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(5))));
// Call the Torque-defined macro, which verifies that reading each bitfield
// out of val yields the correct result.
m.TestBitFieldLoad(val, expected_a, expected_b, expected_c, expected_d);
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
// Test every possible bit combination for this 8-bit value.
for (int a = 0; a <= 1; ++a) {
for (int b = 0; b <= 7; ++b) {
for (int c = 0; c <= 7; ++c) {
for (int d = 0; d <= 1; ++d) {
int val = a | ((b & 7) << 1) | (c << 4) | (d << 7);
ft.Call(ft.Val(val), ft.Val(a), ft.Val(b), ft.Val(c), ft.Val(d));
}
}
}
}
}
TEST(TestBitFieldStore) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
const int kNumParams = 1;
CodeAssemblerTester asm_tester(isolate, kNumParams + 1); // Include receiver.
TestTorqueAssembler m(asm_tester.state());
{
// Untag the parameters to get a plain integer value.
TNode<Uint8T> val =
m.UncheckedCast<Uint8T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(1))));
m.TestBitFieldStore(val);
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
// Test every possible bit combination for this 8-bit value.
for (int i = 0; i < 256; ++i) {
ft.Call(ft.Val(i));
}
}
TEST(TestBitFieldInit) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
const int kNumParams = 4;
CodeAssemblerTester asm_tester(isolate, kNumParams + 1); // Include receiver.
TestTorqueAssembler m(asm_tester.state());
{
// Untag all of the parameters to get plain integer values.
TNode<BoolT> a =
m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(1))));
TNode<Uint16T> b =
m.UncheckedCast<Uint16T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(2))));
TNode<Uint32T> c =
m.UncheckedCast<Uint32T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(3))));
TNode<BoolT> d =
m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(4))));
// Call the Torque-defined macro, which verifies that reading each bitfield
// out of val yields the correct result.
m.TestBitFieldInit(a, b, c, d);
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
// Test every possible bit combination for this 8-bit value.
for (int a = 0; a <= 1; ++a) {
for (int b = 0; b <= 7; ++b) {
for (int c = 0; c <= 7; ++c) {
for (int d = 0; d <= 1; ++d) {
ft.Call(ft.Val(a), ft.Val(b), ft.Val(c), ft.Val(d));
}
}
}
}
}
TEST(TestBitFieldUintptrOps) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
const int kNumParams = 2;
CodeAssemblerTester asm_tester(isolate, kNumParams + 1); // Include receiver.
TestTorqueAssembler m(asm_tester.state());
{
// Untag the parameters to get a plain integer value.
TNode<Uint32T> val2 =
m.UncheckedCast<Uint32T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(1))));
TNode<UintPtrT> val3 = m.UncheckedCast<UintPtrT>(
m.ChangeUint32ToWord(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(2)))));
m.TestBitFieldUintptrOps(val2, val3);
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
// Construct the expected test values.
int val2 = 3 | (61 << 5);
int val3 = 1 | (500 << 1) | (0x1cc << 10);
ft.Call(ft.Val(val2), ft.Val(val3));
}
TEST(TestBitFieldMultipleFlags) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
const int kNumParams = 3;
CodeAssemblerTester asm_tester(isolate, kNumParams);
TestTorqueAssembler m(asm_tester.state());
{
TNode<BoolT> a =
m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(0))));
TNode<Int32T> b = m.SmiToInt32(m.Parameter<Smi>(1));
TNode<BoolT> c =
m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(2))));
m.TestBitFieldMultipleFlags(a, b, c);
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
// No need to call it; we just checked StaticAsserts during compilation.
}
TEST(TestTestParentFrameArguments) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
CodeAssemblerTester asm_tester(isolate, 1);
TestTorqueAssembler m(asm_tester.state());
{
m.TestParentFrameArguments(
m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
asm_tester.GenerateCode();
}
TEST(TestFullyGeneratedClassFromCpp) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate, 1);
TestTorqueAssembler m(asm_tester.state());
{ m.Return(m.TestFullyGeneratedClassFromCpp()); }
FunctionTester ft(asm_tester.GenerateCode(), 0);
Handle<ExportedSubClass> result =
Handle<ExportedSubClass>::cast(ft.Call().ToHandleChecked());
CHECK_EQ(result->c_field(), 7);
CHECK_EQ(result->d_field(), 8);
CHECK_EQ(result->e_field(), 9);
}
TEST(TestFullyGeneratedClassWithElements) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate, 1);
TestTorqueAssembler m(asm_tester.state());
{
m.TestFullyGeneratedClassWithElements();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestGeneratedCastOperators) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate, 1);
TestTorqueAssembler m(asm_tester.state());
{
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
m.TestGeneratedCastOperators(
m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestNewPretenured) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate, 1);
TestTorqueAssembler m(asm_tester.state());
{
Handle<Context> context =
Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
m.TestNewPretenured(m.UncheckedCast<Context>(m.HeapConstant(context)));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestWord8Phi) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate, 1);
TestTorqueAssembler m(asm_tester.state());
{
m.TestWord8Phi();
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
TEST(TestOffHeapSlice) {
CcTest::InitializeVM();
Isolate* isolate(CcTest::i_isolate());
i::HandleScope scope(isolate);
CodeAssemblerTester asm_tester(isolate, 1);
TestTorqueAssembler m(asm_tester.state());
std::string data = "Hello World!";
{
m.TestOffHeapSlice(m.PointerConstant(const_cast<char*>(data.data())),
m.IntPtrConstant(data.size()));
m.Return(m.UndefinedConstant());
}
FunctionTester ft(asm_tester.GenerateCode(), 0);
ft.Call();
}
} // namespace compiler
} // namespace internal
} // namespace v8
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