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v8/test/cctest/compiler/test-run-bytecode-graph-builder.cc
mythria 90721a51a3 [Interpreter] Adds support for const/let variables to interpreter. 
Adds implementation and tests to support const/let variables in the
interpreter.

BUG=v8:4280,v8:4679
LOG=N

Review URL: https://codereview.chromium.org/1634153002

Cr-Commit-Position: refs/heads/master@{#33819}
2016-02-08 14:14:57 +00:00

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111 KiB
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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 <utility>
#include "src/compiler/pipeline.h"
#include "src/execution.h"
#include "src/handles.h"
#include "src/interpreter/bytecode-array-builder.h"
#include "src/interpreter/interpreter.h"
#include "src/parsing/parser.h"
#include "test/cctest/cctest.h"
namespace v8 {
namespace internal {
namespace compiler {
static const char kFunctionName[] = "f";
static const Token::Value kCompareOperators[] = {
Token::Value::EQ, Token::Value::NE, Token::Value::EQ_STRICT,
Token::Value::NE_STRICT, Token::Value::LT, Token::Value::LTE,
Token::Value::GT, Token::Value::GTE};
static const int SMI_MAX = (1 << 30) - 1;
static const int SMI_MIN = -(1 << 30);
static MaybeHandle<Object> CallFunction(Isolate* isolate,
Handle<JSFunction> function) {
return Execution::Call(isolate, function,
isolate->factory()->undefined_value(), 0, nullptr);
}
template <class... A>
static MaybeHandle<Object> CallFunction(Isolate* isolate,
Handle<JSFunction> function,
A... args) {
Handle<Object> argv[] = {args...};
return Execution::Call(isolate, function,
isolate->factory()->undefined_value(), sizeof...(args),
argv);
}
template <class... A>
class BytecodeGraphCallable {
public:
BytecodeGraphCallable(Isolate* isolate, Handle<JSFunction> function)
: isolate_(isolate), function_(function) {}
virtual ~BytecodeGraphCallable() {}
MaybeHandle<Object> operator()(A... args) {
return CallFunction(isolate_, function_, args...);
}
private:
Isolate* isolate_;
Handle<JSFunction> function_;
};
class BytecodeGraphTester {
public:
BytecodeGraphTester(Isolate* isolate, Zone* zone, const char* script,
const char* filter = kFunctionName)
: isolate_(isolate), zone_(zone), script_(script) {
i::FLAG_ignition = true;
i::FLAG_always_opt = false;
i::FLAG_allow_natives_syntax = true;
// Set ignition filter flag via SetFlagsFromString to avoid double-free
// (or potential leak with StrDup() based on ownership confusion).
ScopedVector<char> ignition_filter(64);
SNPrintF(ignition_filter, "--ignition-filter=%s", filter);
FlagList::SetFlagsFromString(ignition_filter.start(),
ignition_filter.length());
// Ensure handler table is generated.
isolate->interpreter()->Initialize();
}
virtual ~BytecodeGraphTester() {}
template <class... A>
BytecodeGraphCallable<A...> GetCallable(
const char* functionName = kFunctionName) {
return BytecodeGraphCallable<A...>(isolate_, GetFunction(functionName));
}
Local<Message> CheckThrowsReturnMessage() {
TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate_));
auto callable = GetCallable<>();
MaybeHandle<Object> no_result = callable();
CHECK(isolate_->has_pending_exception());
CHECK(try_catch.HasCaught());
CHECK(no_result.is_null());
isolate_->OptionalRescheduleException(true);
CHECK(!try_catch.Message().IsEmpty());
return try_catch.Message();
}
static Handle<Object> NewObject(const char* script) {
return v8::Utils::OpenHandle(*CompileRun(script));
}
private:
Isolate* isolate_;
Zone* zone_;
const char* script_;
Handle<JSFunction> GetFunction(const char* functionName) {
CompileRun(script_);
Local<Function> api_function = Local<Function>::Cast(
CcTest::global()
->Get(CcTest::isolate()->GetCurrentContext(), v8_str(functionName))
.ToLocalChecked());
Handle<JSFunction> function =
Handle<JSFunction>::cast(v8::Utils::OpenHandle(*api_function));
CHECK(function->shared()->HasBytecodeArray());
ParseInfo parse_info(zone_, function);
CompilationInfo compilation_info(&parse_info);
compilation_info.SetOptimizing(BailoutId::None(), Handle<Code>());
compilation_info.MarkAsDeoptimizationEnabled();
// TODO(mythria): Remove this step once parse_info is not needed.
CHECK(Compiler::ParseAndAnalyze(&parse_info));
compiler::Pipeline pipeline(&compilation_info);
Handle<Code> code = pipeline.GenerateCode();
function->ReplaceCode(*code);
return function;
}
DISALLOW_COPY_AND_ASSIGN(BytecodeGraphTester);
};
#define SPACE()
#define REPEAT_2(SEP, ...) __VA_ARGS__ SEP() __VA_ARGS__
#define REPEAT_4(SEP, ...) \
REPEAT_2(SEP, __VA_ARGS__) SEP() REPEAT_2(SEP, __VA_ARGS__)
#define REPEAT_8(SEP, ...) \
REPEAT_4(SEP, __VA_ARGS__) SEP() REPEAT_4(SEP, __VA_ARGS__)
#define REPEAT_16(SEP, ...) \
REPEAT_8(SEP, __VA_ARGS__) SEP() REPEAT_8(SEP, __VA_ARGS__)
#define REPEAT_32(SEP, ...) \
REPEAT_16(SEP, __VA_ARGS__) SEP() REPEAT_16(SEP, __VA_ARGS__)
#define REPEAT_64(SEP, ...) \
REPEAT_32(SEP, __VA_ARGS__) SEP() REPEAT_32(SEP, __VA_ARGS__)
#define REPEAT_128(SEP, ...) \
REPEAT_64(SEP, __VA_ARGS__) SEP() REPEAT_64(SEP, __VA_ARGS__)
#define REPEAT_256(SEP, ...) \
REPEAT_128(SEP, __VA_ARGS__) SEP() REPEAT_128(SEP, __VA_ARGS__)
#define REPEAT_127(SEP, ...) \
REPEAT_64(SEP, __VA_ARGS__) \
SEP() \
REPEAT_32(SEP, __VA_ARGS__) \
SEP() \
REPEAT_16(SEP, __VA_ARGS__) \
SEP() \
REPEAT_8(SEP, __VA_ARGS__) \
SEP() \
REPEAT_4(SEP, __VA_ARGS__) SEP() REPEAT_2(SEP, __VA_ARGS__) SEP() __VA_ARGS__
template <int N, typename T = Handle<Object>>
struct ExpectedSnippet {
const char* code_snippet;
T return_value_and_parameters[N + 1];
inline T return_value() const { return return_value_and_parameters[0]; }
inline T parameter(int i) const {
CHECK_GE(i, 0);
CHECK_LT(i, N);
return return_value_and_parameters[1 + i];
}
};
TEST(BytecodeGraphBuilderReturnStatements) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return;", {factory->undefined_value()}},
{"return null;", {factory->null_value()}},
{"return true;", {factory->true_value()}},
{"return false;", {factory->false_value()}},
{"return 0;", {factory->NewNumberFromInt(0)}},
{"return +1;", {factory->NewNumberFromInt(1)}},
{"return -1;", {factory->NewNumberFromInt(-1)}},
{"return +127;", {factory->NewNumberFromInt(127)}},
{"return -128;", {factory->NewNumberFromInt(-128)}},
{"return 0.001;", {factory->NewNumber(0.001)}},
{"return 3.7e-60;", {factory->NewNumber(3.7e-60)}},
{"return -3.7e60;", {factory->NewNumber(-3.7e60)}},
{"return '';", {factory->NewStringFromStaticChars("")}},
{"return 'catfood';", {factory->NewStringFromStaticChars("catfood")}},
{"return NaN;", {factory->nan_value()}}};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderPrimitiveExpressions) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return 1 + 1;", {factory->NewNumberFromInt(2)}},
{"return 20 - 30;", {factory->NewNumberFromInt(-10)}},
{"return 4 * 100;", {factory->NewNumberFromInt(400)}},
{"return 100 / 5;", {factory->NewNumberFromInt(20)}},
{"return 25 % 7;", {factory->NewNumberFromInt(4)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTwoParameterTests) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<2> snippets[] = {
// Integers
{"return p1 + p2;",
{factory->NewNumberFromInt(-70), factory->NewNumberFromInt(3),
factory->NewNumberFromInt(-73)}},
{"return p1 + p2 + 3;",
{factory->NewNumberFromInt(1139044), factory->NewNumberFromInt(300),
factory->NewNumberFromInt(1138741)}},
{"return p1 - p2;",
{factory->NewNumberFromInt(1100), factory->NewNumberFromInt(1000),
factory->NewNumberFromInt(-100)}},
{"return p1 * p2;",
{factory->NewNumberFromInt(-100000), factory->NewNumberFromInt(1000),
factory->NewNumberFromInt(-100)}},
{"return p1 / p2;",
{factory->NewNumberFromInt(-10), factory->NewNumberFromInt(1000),
factory->NewNumberFromInt(-100)}},
{"return p1 % p2;",
{factory->NewNumberFromInt(5), factory->NewNumberFromInt(373),
factory->NewNumberFromInt(16)}},
// Doubles
{"return p1 + p2;",
{factory->NewHeapNumber(9.999), factory->NewHeapNumber(3.333),
factory->NewHeapNumber(6.666)}},
{"return p1 - p2;",
{factory->NewHeapNumber(-3.333), factory->NewHeapNumber(3.333),
factory->NewHeapNumber(6.666)}},
{"return p1 * p2;",
{factory->NewHeapNumber(3.333 * 6.666), factory->NewHeapNumber(3.333),
factory->NewHeapNumber(6.666)}},
{"return p1 / p2;",
{factory->NewHeapNumber(2.25), factory->NewHeapNumber(9),
factory->NewHeapNumber(4)}},
// Strings
{"return p1 + p2;",
{factory->NewStringFromStaticChars("abcdef"),
factory->NewStringFromStaticChars("abc"),
factory->NewStringFromStaticChars("def")}}};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1, p2) { %s }\n%s(0, 0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderNamedLoad) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return p1.val;",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return p1[\"name\"];",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({name : 'abc'})")}},
{"'use strict'; return p1.val;",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10 })")}},
{"'use strict'; return p1[\"val\"];",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10, name : 'abc'})")}},
{"var b;\n" REPEAT_127(SPACE, " b = p1.name; ") " return p1.name;\n",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({name : 'abc'})")}},
{"'use strict'; var b;\n"
REPEAT_127(SPACE, " b = p1.name; ")
"return p1.name;\n",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({ name : 'abc'})")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderKeyedLoad) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<2> snippets[] = {
{"return p1[p2];",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewStringFromStaticChars("val")}},
{"return p1[100];",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(0)}},
{"var b = 100; return p1[b];",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(0)}},
{"'use strict'; return p1[p2];",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10 })"),
factory->NewStringFromStaticChars("val")}},
{"'use strict'; return p1[100];",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({100 : 10})"),
factory->NewNumberFromInt(0)}},
{"'use strict'; var b = p2; return p1[b];",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
{"var b;\n" REPEAT_127(SPACE, " b = p1[p2]; ") " return p1[p2];\n",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
{"'use strict'; var b;\n" REPEAT_127(SPACE,
" b = p1[p2]; ") "return p1[p2];\n",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({ 100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1, p2) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderNamedStore) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return p1.val = 20;",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"p1.type = 'int'; return p1.type;",
{factory->NewStringFromStaticChars("int"),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"p1.name = 'def'; return p1[\"name\"];",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({name : 'abc'})")}},
{"'use strict'; p1.val = 20; return p1.val;",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({val : 10 })")}},
{"'use strict'; return p1.type = 'int';",
{factory->NewStringFromStaticChars("int"),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"'use strict'; p1.val = 20; return p1[\"val\"];",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({val : 10, name : 'abc'})")}},
{"var b = 'abc';\n" REPEAT_127(
SPACE, " p1.name = b; ") " p1.name = 'def'; return p1.name;\n",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({name : 'abc'})")}},
{"'use strict'; var b = 'def';\n" REPEAT_127(
SPACE, " p1.name = 'abc'; ") "p1.name = b; return p1.name;\n",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({ name : 'abc'})")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(3072);
SNPrintF(script, "function %s(p1) { %s };\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderKeyedStore) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<2> snippets[] = {
{"p1[p2] = 20; return p1[p2];",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewStringFromStaticChars("val")}},
{"return p1[100] = 'def';",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(0)}},
{"var b = 100; p1[b] = 'def'; return p1[b];",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(0)}},
{"'use strict'; p1[p2] = 20; return p1[p2];",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({val : 10 })"),
factory->NewStringFromStaticChars("val")}},
{"'use strict'; return p1[100] = 20;",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({100 : 10})"),
factory->NewNumberFromInt(0)}},
{"'use strict'; var b = p2; p1[b] = 'def'; return p1[b];",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
{"var b;\n" REPEAT_127(
SPACE, " b = p1[p2]; ") " p1[p2] = 'def'; return p1[p2];\n",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
{"'use strict'; var b;\n" REPEAT_127(
SPACE, " b = p1[p2]; ") " p1[p2] = 'def'; return p1[p2];\n",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({ 100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1, p2) { %s };\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderPropertyCall) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return p1.func();",
{factory->NewNumberFromInt(25),
BytecodeGraphTester::NewObject("({func() { return 25; }})")}},
{"return p1.func('abc');",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({func(a) { return a; }})")}},
{"return p1.func(1, 2, 3, 4, 5, 6, 7, 8);",
{factory->NewNumberFromInt(36),
BytecodeGraphTester::NewObject(
"({func(a, b, c, d, e, f, g, h) {\n"
" return a + b + c + d + e + f + g + h;}})")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s({func() {}});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCallNew) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"function counter() { this.count = 20; }\n"
"function f() {\n"
" var c = new counter();\n"
" return c.count;\n"
"}; f()",
{factory->NewNumberFromInt(20)}},
{"function counter(arg0) { this.count = 17; this.x = arg0; }\n"
"function f() {\n"
" var c = new counter(6);\n"
" return c.count + c.x;\n"
"}; f()",
{factory->NewNumberFromInt(23)}},
{"function counter(arg0, arg1) {\n"
" this.count = 17; this.x = arg0; this.y = arg1;\n"
"}\n"
"function f() {\n"
" var c = new counter(3, 5);\n"
" return c.count + c.x + c.y;\n"
"}; f()",
{factory->NewNumberFromInt(25)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
BytecodeGraphTester tester(isolate, zone, snippets[i].code_snippet);
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCreateClosure) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"function f() {\n"
" function counter() { this.count = 20; }\n"
" var c = new counter();\n"
" return c.count;\n"
"}; f()",
{factory->NewNumberFromInt(20)}},
{"function f() {\n"
" function counter(arg0) { this.count = 17; this.x = arg0; }\n"
" var c = new counter(6);\n"
" return c.count + c.x;\n"
"}; f()",
{factory->NewNumberFromInt(23)}},
{"function f() {\n"
" function counter(arg0, arg1) {\n"
" this.count = 17; this.x = arg0; this.y = arg1;\n"
" }\n"
" var c = new counter(3, 5);\n"
" return c.count + c.x + c.y;\n"
"}; f()",
{factory->NewNumberFromInt(25)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
BytecodeGraphTester tester(isolate, zone, snippets[i].code_snippet);
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCallRuntime) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"function f(arg0) { return %MaxSmi(); }\nf()",
{factory->NewNumberFromInt(Smi::kMaxValue), factory->undefined_value()}},
{"function f(arg0) { return %IsArray(arg0) }\nf(undefined)",
{factory->true_value(), BytecodeGraphTester::NewObject("[1, 2, 3]")}},
{"function f(arg0) { return %Add(arg0, 2) }\nf(1)",
{factory->NewNumberFromInt(5), factory->NewNumberFromInt(3)}},
{"function f(arg0) { return %spread_arguments(arg0).length }\nf([])",
{factory->NewNumberFromInt(3),
BytecodeGraphTester::NewObject("[1, 2, 3]")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
BytecodeGraphTester tester(isolate, zone, snippets[i].code_snippet);
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderGlobals) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var global = 321;\n function f() { return global; };\n f();",
{factory->NewNumberFromInt(321)}},
{"var global = 321;\n"
"function f() { global = 123; return global };\n f();",
{factory->NewNumberFromInt(123)}},
{"var global = function() { return 'abc'};\n"
"function f() { return global(); };\n f();",
{factory->NewStringFromStaticChars("abc")}},
{"var global = 456;\n"
"function f() { 'use strict'; return global; };\n f();",
{factory->NewNumberFromInt(456)}},
{"var global = 987;\n"
"function f() { 'use strict'; global = 789; return global };\n f();",
{factory->NewNumberFromInt(789)}},
{"var global = function() { return 'xyz'};\n"
"function f() { 'use strict'; return global(); };\n f();",
{factory->NewStringFromStaticChars("xyz")}},
{"var global = 'abc'; var global_obj = {val:123};\n"
"function f() {\n" REPEAT_127(
SPACE, " var b = global_obj.name;\n") "return global; };\n f();\n",
{factory->NewStringFromStaticChars("abc")}},
{"var global = 'abc'; var global_obj = {val:123};\n"
"function f() { 'use strict';\n" REPEAT_127(
SPACE, " var b = global_obj.name;\n") "global = 'xyz'; return "
"global };\n f();\n",
{factory->NewStringFromStaticChars("xyz")}},
{"function f() { return typeof(undeclared_var); }\n; f();\n",
{factory->NewStringFromStaticChars("undefined")}},
{"var defined_var = 10; function f() { return typeof(defined_var); }\n; "
"f();\n",
{factory->NewStringFromStaticChars("number")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
BytecodeGraphTester tester(isolate, zone, snippets[i].code_snippet);
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderToObject) {
// TODO(mythria): tests for ToObject. Needs ForIn.
}
TEST(BytecodeGraphBuilderToName) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var a = 'val'; var obj = {[a] : 10}; return obj.val;",
{factory->NewNumberFromInt(10)}},
{"var a = 20; var obj = {[a] : 10}; return obj['20'];",
{factory->NewNumberFromInt(10)}},
{"var a = 20; var obj = {[a] : 10}; return obj[20];",
{factory->NewNumberFromInt(10)}},
{"var a = {val:23}; var obj = {[a] : 10}; return obj[a];",
{factory->NewNumberFromInt(10)}},
{"var a = {val:23}; var obj = {[a] : 10}; return obj['[object Object]'];",
{factory->NewNumberFromInt(10)}},
{"var a = {toString : function() { return 'x'}};\n"
"var obj = {[a] : 10};\n"
"return obj.x;",
{factory->NewNumberFromInt(10)}},
{"var a = {valueOf : function() { return 'x'}};\n"
"var obj = {[a] : 10};\n"
"return obj.x;",
{factory->undefined_value()}},
{"var a = {[Symbol.toPrimitive] : function() { return 'x'}};\n"
"var obj = {[a] : 10};\n"
"return obj.x;",
{factory->NewNumberFromInt(10)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderLogicalNot) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return !p1;",
{factory->false_value(),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return !p1;", {factory->true_value(), factory->NewNumberFromInt(0)}},
{"return !p1;", {factory->true_value(), factory->undefined_value()}},
{"return !p1;", {factory->false_value(), factory->NewNumberFromInt(10)}},
{"return !p1;", {factory->false_value(), factory->true_value()}},
{"return !p1;",
{factory->false_value(), factory->NewStringFromStaticChars("abc")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTypeOf) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return typeof p1;",
{factory->NewStringFromStaticChars("object"),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return typeof p1;",
{factory->NewStringFromStaticChars("undefined"),
factory->undefined_value()}},
{"return typeof p1;",
{factory->NewStringFromStaticChars("number"),
factory->NewNumberFromInt(10)}},
{"return typeof p1;",
{factory->NewStringFromStaticChars("boolean"), factory->true_value()}},
{"return typeof p1;",
{factory->NewStringFromStaticChars("string"),
factory->NewStringFromStaticChars("abc")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCountOperation) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return ++p1;",
{factory->NewNumberFromInt(11), factory->NewNumberFromInt(10)}},
{"return p1++;",
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(10)}},
{"return p1++ + 10;",
{factory->NewHeapNumber(15.23), factory->NewHeapNumber(5.23)}},
{"return 20 + ++p1;",
{factory->NewHeapNumber(27.23), factory->NewHeapNumber(6.23)}},
{"return --p1;",
{factory->NewHeapNumber(9.8), factory->NewHeapNumber(10.8)}},
{"return p1--;",
{factory->NewHeapNumber(10.8), factory->NewHeapNumber(10.8)}},
{"return p1-- + 10;",
{factory->NewNumberFromInt(20), factory->NewNumberFromInt(10)}},
{"return 20 + --p1;",
{factory->NewNumberFromInt(29), factory->NewNumberFromInt(10)}},
{"return p1.val--;",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return ++p1['val'];",
{factory->NewNumberFromInt(11),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return ++p1[1];",
{factory->NewNumberFromInt(11),
BytecodeGraphTester::NewObject("({1 : 10})")}},
{" function inner() { return p1 } return --p1;",
{factory->NewNumberFromInt(9), factory->NewNumberFromInt(10)}},
{" function inner() { return p1 } return p1--;",
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(10)}},
{"return ++p1;",
{factory->nan_value(), factory->NewStringFromStaticChars("String")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderDelete) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return delete p1.val;",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})")}},
{"delete p1.val; return p1.val;",
{factory->undefined_value(),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"delete p1.name; return p1.val;",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10, name:'abc'})")}},
{"'use strict'; return delete p1.val;",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})")}},
{"'use strict'; delete p1.val; return p1.val;",
{factory->undefined_value(),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"'use strict'; delete p1.name; return p1.val;",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10, name:'abc'})")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderDeleteGlobal) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var obj = {val : 10, type : 'int'};"
"function f() {return delete obj;};",
{factory->false_value()}},
{"function f() {return delete this;};", {factory->true_value()}},
{"var obj = {val : 10, type : 'int'};"
"function f() {return delete obj.val;};",
{factory->true_value()}},
{"var obj = {val : 10, type : 'int'};"
"function f() {'use strict'; return delete obj.val;};",
{factory->true_value()}},
{"var obj = {val : 10, type : 'int'};"
"function f() {delete obj.val; return obj.val;};",
{factory->undefined_value()}},
{"var obj = {val : 10, type : 'int'};"
"function f() {'use strict'; delete obj.val; return obj.val;};",
{factory->undefined_value()}},
{"var obj = {1 : 10, 2 : 20};"
"function f() { return delete obj[1]; };",
{factory->true_value()}},
{"var obj = {1 : 10, 2 : 20};"
"function f() { 'use strict'; return delete obj[1];};",
{factory->true_value()}},
{"obj = {1 : 10, 2 : 20};"
"function f() { delete obj[1]; return obj[2];};",
{factory->NewNumberFromInt(20)}},
{"function f() {"
" var obj = {1 : 10, 2 : 20};"
" function inner() { return obj[1]; };"
" return delete obj[1];"
"}",
{factory->true_value()}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s %s({});", snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderDeleteLookupSlot) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
// TODO(mythria): Add more tests when we have support for LdaLookupSlot.
const char* function_prologue = "var f;"
"var x = 1;"
"y = 10;"
"var obj = {val:10};"
"var z = 30;"
"function f1() {"
" var z = 20;"
" eval(\"function t() {";
const char* function_epilogue = " }; f = t; t();\");"
"}"
"f1();";
ExpectedSnippet<0> snippets[] = {
{"return delete y;", {factory->true_value()}},
{"return delete z;", {factory->false_value()}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s %s %s", function_prologue, snippets[i].code_snippet,
function_epilogue);
BytecodeGraphTester tester(isolate, zone, script.start(), "t");
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderLookupSlot) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
const char* function_prologue = "var f;"
"var x = 12;"
"y = 10;"
"var obj = {val:3.1414};"
"var z = 30;"
"function f1() {"
" var z = 20;"
" eval(\"function t() {";
const char* function_epilogue = " }; f = t; t();\");"
"}"
"f1();";
ExpectedSnippet<0> snippets[] = {
{"return x;", {factory->NewNumber(12)}},
{"return obj.val;", {factory->NewNumber(3.1414)}},
{"return typeof x;", {factory->NewStringFromStaticChars("number")}},
{"return typeof dummy;",
{factory->NewStringFromStaticChars("undefined")}},
{"x = 23; return x;", {factory->NewNumber(23)}},
{"'use strict'; obj.val = 23.456; return obj.val;",
{factory->NewNumber(23.456)}}};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s %s %s", function_prologue, snippets[i].code_snippet,
function_epilogue);
BytecodeGraphTester tester(isolate, zone, script.start(), "t");
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderLookupSlotWide) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
const char* function_prologue =
"var f;"
"var x = 12;"
"y = 10;"
"var obj = {val:3.1414};"
"var z = 30;"
"function f1() {"
" var z = 20;"
" eval(\"function t() {";
const char* function_epilogue =
" }; f = t; t();\");"
"}"
"f1();";
ExpectedSnippet<0> snippets[] = {
{"var y = 2.3;" REPEAT_256(SPACE, "y = 2.3;") "return x;",
{factory->NewNumber(12)}},
{"var y = 2.3;" REPEAT_256(SPACE, "y = 2.3;") "return typeof x;",
{factory->NewStringFromStaticChars("number")}},
{"var y = 2.3;" REPEAT_256(SPACE, "y = 2.3;") "return x = 23;",
{factory->NewNumber(23)}},
{"'use strict';" REPEAT_256(SPACE, "y = 2.3;") "return obj.val = 23.456;",
{factory->NewNumber(23.456)}}};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(3072);
SNPrintF(script, "%s %s %s", function_prologue, snippets[i].code_snippet,
function_epilogue);
BytecodeGraphTester tester(isolate, zone, script.start(), "t");
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCallLookupSlot) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
ExpectedSnippet<0> snippets[] = {
{"g = function(){ return 2 }; eval(''); return g();",
{handle(Smi::FromInt(2), isolate)}},
{"g = function(){ return 2 }; eval('g = function() {return 3}');\n"
"return g();",
{handle(Smi::FromInt(3), isolate)}},
{"g = { x: function(){ return this.y }, y: 20 };\n"
"eval('g = { x: g.x, y: 30 }');\n"
"return g.x();",
{handle(Smi::FromInt(30), isolate)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderEval) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return eval('1;');", {handle(Smi::FromInt(1), isolate)}},
{"return eval('100 * 20;');", {handle(Smi::FromInt(2000), isolate)}},
{"var x = 10; return eval('x + 20;');",
{handle(Smi::FromInt(30), isolate)}},
{"var x = 10; eval('x = 33;'); return x;",
{handle(Smi::FromInt(33), isolate)}},
{"'use strict'; var x = 20; var z = 0;\n"
"eval('var x = 33; z = x;'); return x + z;",
{handle(Smi::FromInt(53), isolate)}},
{"eval('var x = 33;'); eval('var y = x + 20'); return x + y;",
{handle(Smi::FromInt(86), isolate)}},
{"var x = 1; eval('for(i = 0; i < 10; i++) x = x + 1;'); return x",
{handle(Smi::FromInt(11), isolate)}},
{"var x = 10; eval('var x = 20;'); return x;",
{handle(Smi::FromInt(20), isolate)}},
{"var x = 1; eval('\"use strict\"; var x = 2;'); return x;",
{handle(Smi::FromInt(1), isolate)}},
{"'use strict'; var x = 1; eval('var x = 2;'); return x;",
{handle(Smi::FromInt(1), isolate)}},
{"var x = 10; eval('x + 20;'); return typeof x;",
{factory->NewStringFromStaticChars("number")}},
{"eval('var y = 10;'); return typeof unallocated;",
{factory->NewStringFromStaticChars("undefined")}},
{"'use strict'; eval('var y = 10;'); return typeof unallocated;",
{factory->NewStringFromStaticChars("undefined")}},
{"eval('var x = 10;'); return typeof x;",
{factory->NewStringFromStaticChars("number")}},
{"var x = {}; eval('var x = 10;'); return typeof x;",
{factory->NewStringFromStaticChars("number")}},
{"'use strict'; var x = {}; eval('var x = 10;'); return typeof x;",
{factory->NewStringFromStaticChars("object")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderEvalParams) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
ExpectedSnippet<1> snippets[] = {
{"var x = 10; return eval('x + p1;');",
{handle(Smi::FromInt(30), isolate), handle(Smi::FromInt(20), isolate)}},
{"var x = 10; eval('p1 = x;'); return p1;",
{handle(Smi::FromInt(10), isolate), handle(Smi::FromInt(20), isolate)}},
{"var a = 10;"
"function inner() { return eval('a + p1;');}"
"return inner();",
{handle(Smi::FromInt(30), isolate), handle(Smi::FromInt(20), isolate)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderEvalGlobal) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"function add_global() { eval('function f() { z = 33; }; f()'); };"
"function f() { add_global(); return z; }; f();",
{handle(Smi::FromInt(33), isolate)}},
{"function add_global() {\n"
" eval('\"use strict\"; function f() { y = 33; };"
" try { f() } catch(e) {}');\n"
"}\n"
"function f() { add_global(); return typeof y; } f();",
{factory->NewStringFromStaticChars("undefined")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
BytecodeGraphTester tester(isolate, zone, snippets[i].code_snippet);
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
bool get_compare_result(Token::Value opcode, Handle<Object> lhs_value,
Handle<Object> rhs_value) {
switch (opcode) {
case Token::Value::EQ:
return Object::Equals(lhs_value, rhs_value).FromJust();
case Token::Value::NE:
return !Object::Equals(lhs_value, rhs_value).FromJust();
case Token::Value::EQ_STRICT:
return lhs_value->StrictEquals(*rhs_value);
case Token::Value::NE_STRICT:
return !lhs_value->StrictEquals(*rhs_value);
case Token::Value::LT:
return Object::LessThan(lhs_value, rhs_value).FromJust();
case Token::Value::LTE:
return Object::LessThanOrEqual(lhs_value, rhs_value).FromJust();
case Token::Value::GT:
return Object::GreaterThan(lhs_value, rhs_value).FromJust();
case Token::Value::GTE:
return Object::GreaterThanOrEqual(lhs_value, rhs_value).FromJust();
default:
UNREACHABLE();
return false;
}
}
const char* get_code_snippet(Token::Value opcode) {
switch (opcode) {
case Token::Value::EQ:
return "return p1 == p2;";
case Token::Value::NE:
return "return p1 != p2;";
case Token::Value::EQ_STRICT:
return "return p1 === p2;";
case Token::Value::NE_STRICT:
return "return p1 !== p2;";
case Token::Value::LT:
return "return p1 < p2;";
case Token::Value::LTE:
return "return p1 <= p2;";
case Token::Value::GT:
return "return p1 > p2;";
case Token::Value::GTE:
return "return p1 >= p2;";
default:
UNREACHABLE();
return "";
}
}
TEST(BytecodeGraphBuilderCompare) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
Handle<Object> lhs_values[] = {
factory->NewNumberFromInt(10), factory->NewHeapNumber(3.45),
factory->NewStringFromStaticChars("abc"),
factory->NewNumberFromInt(SMI_MAX), factory->NewNumberFromInt(SMI_MIN)};
Handle<Object> rhs_values[] = {factory->NewNumberFromInt(10),
factory->NewStringFromStaticChars("10"),
factory->NewNumberFromInt(20),
factory->NewStringFromStaticChars("abc"),
factory->NewHeapNumber(3.45),
factory->NewNumberFromInt(SMI_MAX),
factory->NewNumberFromInt(SMI_MIN)};
for (size_t i = 0; i < arraysize(kCompareOperators); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1, p2) { %s }\n%s({}, {});", kFunctionName,
get_code_snippet(kCompareOperators[i]), kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
for (size_t j = 0; j < arraysize(lhs_values); j++) {
for (size_t k = 0; k < arraysize(rhs_values); k++) {
Handle<Object> return_value =
callable(lhs_values[j], rhs_values[k]).ToHandleChecked();
bool result = get_compare_result(kCompareOperators[i], lhs_values[j],
rhs_values[k]);
CHECK(return_value->SameValue(*factory->ToBoolean(result)));
}
}
}
}
TEST(BytecodeGraphBuilderTestIn) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<2> snippets[] = {
{"return p2 in p1;",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewStringFromStaticChars("val")}},
{"return p2 in p1;",
{factory->true_value(), BytecodeGraphTester::NewObject("[]"),
factory->NewStringFromStaticChars("length")}},
{"return p2 in p1;",
{factory->true_value(), BytecodeGraphTester::NewObject("[]"),
factory->NewStringFromStaticChars("toString")}},
{"return p2 in p1;",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewStringFromStaticChars("toString")}},
{"return p2 in p1;",
{factory->false_value(), BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewStringFromStaticChars("abc")}},
{"return p2 in p1;",
{factory->false_value(), BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewNumberFromInt(10)}},
{"return p2 in p1;",
{factory->true_value(), BytecodeGraphTester::NewObject("({10 : 'val'})"),
factory->NewNumberFromInt(10)}},
{"return p2 in p1;",
{factory->false_value(),
BytecodeGraphTester::NewObject("({10 : 'val'})"),
factory->NewNumberFromInt(1)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1, p2) { %s }\n%s({}, {});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTestInstanceOf) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return p1 instanceof Object;",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})")}},
{"return p1 instanceof String;",
{factory->false_value(), factory->NewStringFromStaticChars("string")}},
{"var cons = function() {};"
"var obj = new cons();"
"return obj instanceof cons;",
{factory->true_value(), factory->undefined_value()}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTryCatch) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
ExpectedSnippet<0> snippets[] = {
{"var a = 1; try { a = 2 } catch(e) { a = 3 }; return a;",
{handle(Smi::FromInt(2), isolate)}},
{"var a; try { undef.x } catch(e) { a = 2 }; return a;",
{handle(Smi::FromInt(2), isolate)}},
{"var a; try { throw 1 } catch(e) { a = e + 2 }; return a;",
{handle(Smi::FromInt(3), isolate)}},
{"var a; try { throw 1 } catch(e) { a = e + 2 };"
" try { throw a } catch(e) { a = e + 3 }; return a;",
{handle(Smi::FromInt(6), isolate)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTryFinally1) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
ExpectedSnippet<0> snippets[] = {
{"var a = 1; try { a = a + 1; } finally { a = a + 2; }; return a;",
{handle(Smi::FromInt(4), isolate)}},
{"var a = 1; try { a = 2; return 23; } finally { a = 3 }; return a;",
{handle(Smi::FromInt(23), isolate)}},
{"var a = 1; try { a = 2; throw 23; } finally { return a; };",
{handle(Smi::FromInt(2), isolate)}},
{"var a = 1; for (var i = 10; i < 20; i += 5) {"
" try { a = 2; break; } finally { a = 3; }"
"} return a + i;",
{handle(Smi::FromInt(13), isolate)}},
{"var a = 1; for (var i = 10; i < 20; i += 5) {"
" try { a = 2; continue; } finally { a = 3; }"
"} return a + i;",
{handle(Smi::FromInt(23), isolate)}},
{"var a = 1; try { a = 2;"
" try { a = 3; throw 23; } finally { a = 4; }"
"} catch(e) { a = a + e; } return a;",
{handle(Smi::FromInt(27), isolate)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTryFinally2) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
ExpectedSnippet<0, const char*> snippets[] = {
{"var a = 1; try { a = 2; throw 23; } finally { a = 3 }; return a;",
{"Uncaught 23"}},
{"var a = 1; try { a = 2; throw 23; } finally { throw 42; };",
{"Uncaught 42"}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
v8::Local<v8::String> message = tester.CheckThrowsReturnMessage()->Get();
v8::Local<v8::String> expected_string = v8_str(snippets[i].return_value());
CHECK(
message->Equals(CcTest::isolate()->GetCurrentContext(), expected_string)
.FromJust());
}
}
TEST(BytecodeGraphBuilderThrow) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
// TODO(mythria): Add more tests when real try-catch and deoptimization
// information are supported.
ExpectedSnippet<0, const char*> snippets[] = {
{"throw undefined;", {"Uncaught undefined"}},
{"throw 1;", {"Uncaught 1"}},
{"throw 'Error';", {"Uncaught Error"}},
{"throw 'Error1'; throw 'Error2'", {"Uncaught Error1"}},
{"var a = true; if (a) { throw 'Error'; }", {"Uncaught Error"}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
v8::Local<v8::String> message = tester.CheckThrowsReturnMessage()->Get();
v8::Local<v8::String> expected_string = v8_str(snippets[i].return_value());
CHECK(
message->Equals(CcTest::isolate()->GetCurrentContext(), expected_string)
.FromJust());
}
}
TEST(BytecodeGraphBuilderContext) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var x = 'outer';"
"function f() {"
" 'use strict';"
" {"
" let x = 'inner';"
" (function() {x});"
" }"
"return(x);"
"}"
"f();",
{factory->NewStringFromStaticChars("outer")}},
{"var x = 'outer';"
"function f() {"
" 'use strict';"
" {"
" let x = 'inner ';"
" var innerFunc = function() {return x};"
" }"
"return(innerFunc() + x);"
"}"
"f();",
{factory->NewStringFromStaticChars("inner outer")}},
{"var x = 'outer';"
"function f() {"
" 'use strict';"
" {"
" let x = 'inner ';"
" var innerFunc = function() {return x;};"
" {"
" let x = 'innermost ';"
" var innerMostFunc = function() {return x + innerFunc();};"
" }"
" x = 'inner_changed ';"
" }"
" return(innerMostFunc() + x);"
"}"
"f();",
{factory->NewStringFromStaticChars("innermost inner_changed outer")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s", snippets[i].code_snippet);
BytecodeGraphTester tester(isolate, zone, script.start(), "f");
auto callable = tester.GetCallable<>("f");
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderLoadContext) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"function Outer() {"
" var outerVar = 2;"
" function Inner(innerArg) {"
" this.innerFunc = function () {"
" return outerVar * innerArg;"
" };"
" };"
" this.getInnerFunc = function GetInner() {"
" return new Inner(3).innerFunc;"
" }"
"}"
"var f = new Outer().getInnerFunc();"
"f();",
{factory->NewNumberFromInt(6), factory->undefined_value()}},
{"function Outer() {"
" var outerVar = 2;"
" function Inner(innerArg) {"
" this.innerFunc = function () {"
" outerVar = innerArg; return outerVar;"
" };"
" };"
" this.getInnerFunc = function GetInner() {"
" return new Inner(10).innerFunc;"
" }"
"}"
"var f = new Outer().getInnerFunc();"
"f();",
{factory->NewNumberFromInt(10), factory->undefined_value()}},
{"function testOuter(outerArg) {"
" this.testinnerFunc = function testInner(innerArg) {"
" return innerArg + outerArg;"
" }"
"}"
"var f = new testOuter(10).testinnerFunc;"
"f(0);",
{factory->NewNumberFromInt(14), factory->NewNumberFromInt(4)}},
{"function testOuter(outerArg) {"
" var outerVar = outerArg * 2;"
" this.testinnerFunc = function testInner(innerArg) {"
" outerVar = outerVar + innerArg; return outerVar;"
" }"
"}"
"var f = new testOuter(10).testinnerFunc;"
"f(0);",
{factory->NewNumberFromInt(24), factory->NewNumberFromInt(4)}}};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s", snippets[i].code_snippet);
BytecodeGraphTester tester(isolate, zone, script.start(), "*");
auto callable = tester.GetCallable<Handle<Object>>("f");
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCreateArgumentsNoParameters) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"function f() {return arguments[0];}", {factory->undefined_value()}},
{"function f(a) {return arguments[0];}", {factory->undefined_value()}},
{"function f() {'use strict'; return arguments[0];}",
{factory->undefined_value()}},
{"function f(a) {'use strict'; return arguments[0];}",
{factory->undefined_value()}},
{"function f(...restArgs) {return restArgs[0];}",
{factory->undefined_value()}},
{"function f(a, ...restArgs) {return restArgs[0];}",
{factory->undefined_value()}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s\n%s();", snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCreateArguments) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<3> snippets[] = {
{"function f(a, b, c) {return arguments[0];}",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, c) {return arguments[3];}",
{factory->undefined_value(), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, c) { b = c; return arguments[1];}",
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, c) {'use strict'; return arguments[0];}",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, c) {'use strict'; return arguments[3];}",
{factory->undefined_value(), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, c) {'use strict'; b = c; return arguments[1];}",
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function inline_func(a, b) { return arguments[0] }"
"function f(a, b, c) {return inline_func(b, c) + arguments[0];}",
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(30)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s\n%s();", snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable =
tester.GetCallable<Handle<Object>, Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1),
snippets[i].parameter(2))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCreateRestArguments) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<3> snippets[] = {
{"function f(...restArgs) {return restArgs[0];}",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, ...restArgs) {return restArgs[0];}",
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, ...restArgs) {return arguments[2];}",
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, ...restArgs) { return restArgs[2];}",
{factory->undefined_value(), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, ...restArgs) { return arguments[0] + restArgs[1];}",
{factory->NewNumberFromInt(4), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function inline_func(a, ...restArgs) { return restArgs[0] }"
"function f(a, b, c) {return inline_func(b, c) + arguments[0];}",
{factory->NewNumberFromInt(31), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(30)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s\n%s();", snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable =
tester.GetCallable<Handle<Object>, Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1),
snippets[i].parameter(2))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderRegExpLiterals) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return /abd/.exec('cccabbdd');", {factory->null_value()}},
{"return /ab+d/.exec('cccabbdd')[0];",
{factory->NewStringFromStaticChars("abbd")}},
{"var a = 3.1414;"
REPEAT_256(SPACE, "a = 3.1414;")
"return /ab+d/.exec('cccabbdd')[0];",
{factory->NewStringFromStaticChars("abbd")}},
{"return /ab+d/.exec('cccabbdd')[1];", {factory->undefined_value()}},
{"return /AbC/i.exec('ssaBC')[0];",
{factory->NewStringFromStaticChars("aBC")}},
{"return 'ssaBC'.match(/AbC/i)[0];",
{factory->NewStringFromStaticChars("aBC")}},
{"return 'ssaBCtAbC'.match(/(AbC)/gi)[1];",
{factory->NewStringFromStaticChars("AbC")}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(4096);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderArrayLiterals) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return [][0];", {factory->undefined_value()}},
{"return [1, 3, 2][1];", {factory->NewNumberFromInt(3)}},
{"var a;" REPEAT_256(SPACE, "a = 9.87;") "return [1, 3, 2][1];",
{factory->NewNumberFromInt(3)}},
{"return ['a', 'b', 'c'][2];", {factory->NewStringFromStaticChars("c")}},
{"var a = 100; return [a, a++, a + 2, a + 3][2];",
{factory->NewNumberFromInt(103)}},
{"var a = 100; return [a, ++a, a + 2, a + 3][1];",
{factory->NewNumberFromInt(101)}},
{"var a = 9.2;"
REPEAT_256(SPACE, "a = 9.34;")
"return [a, ++a, a + 2, a + 3][2];",
{factory->NewHeapNumber(12.34)}},
{"return [[1, 2, 3], ['a', 'b', 'c']][1][0];",
{factory->NewStringFromStaticChars("a")}},
{"var t = 't'; return [[t, t + 'est'], [1 + t]][0][1];",
{factory->NewStringFromStaticChars("test")}},
{"var t = 't'; return [[t, t + 'est'], [1 + t]][1][0];",
{factory->NewStringFromStaticChars("1t")}}};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(4096);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderObjectLiterals) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return { }.name;", {factory->undefined_value()}},
{"return { name: 'string', val: 9.2 }.name;",
{factory->NewStringFromStaticChars("string")}},
{"var a;\n"
REPEAT_256(SPACE, "a = 1.23;\n")
"return { name: 'string', val: 9.2 }.name;",
{factory->NewStringFromStaticChars("string")}},
{"return { name: 'string', val: 9.2 }['name'];",
{factory->NewStringFromStaticChars("string")}},
{"var a = 15; return { name: 'string', val: a }.val;",
{factory->NewNumberFromInt(15)}},
{"var a;"
REPEAT_256(SPACE, "a = 1.23;")
"return { name: 'string', val: a }.val;",
{factory->NewHeapNumber(1.23)}},
{"var a = 15; var b = 'val'; return { name: 'string', val: a }[b];",
{factory->NewNumberFromInt(15)}},
{"var a = 5; return { val: a, val: a + 1 }.val;",
{factory->NewNumberFromInt(6)}},
{"return { func: function() { return 'test' } }.func();",
{factory->NewStringFromStaticChars("test")}},
{"return { func(a) { return a + 'st'; } }.func('te');",
{factory->NewStringFromStaticChars("test")}},
{"return { get a() { return 22; } }.a;", {factory->NewNumberFromInt(22)}},
{"var a = { get b() { return this.x + 't'; },\n"
" set b(val) { this.x = val + 's' } };\n"
"a.b = 'te';\n"
"return a.b;",
{factory->NewStringFromStaticChars("test")}},
{"var a = 123; return { 1: a }[1];", {factory->NewNumberFromInt(123)}},
{"return Object.getPrototypeOf({ __proto__: null });",
{factory->null_value()}},
{"var a = 'test'; return { [a]: 1 }.test;",
{factory->NewNumberFromInt(1)}},
{"var a = 'test'; return { b: a, [a]: a + 'ing' }['test']",
{factory->NewStringFromStaticChars("testing")}},
{"var a = 'proto_str';\n"
"var b = { [a]: 1, __proto__: { var : a } };\n"
"return Object.getPrototypeOf(b).var",
{factory->NewStringFromStaticChars("proto_str")}},
{"var n = 'name';\n"
"return { [n]: 'val', get a() { return 987 } }['a'];",
{factory->NewNumberFromInt(987)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(4096);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderIf) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"if (p1 > 1) return 1;\n"
"return -1;",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(2)}},
{"if (p1 > 1) return 1;\n"
"return -1;",
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(1)}},
{"if (p1 > 1) { return 1; } else { return -1; }",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(2)}},
{"if (p1 > 1) { return 1; } else { return -1; }",
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(1)}},
{"if (p1 > 50) {\n"
" return 1;\n"
"} else if (p1 < 10) {\n"
" return 10;\n"
"} else {\n"
" return -10;\n"
"}",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(51)}},
{"if (p1 > 50) {\n"
" return 1;\n"
"} else if (p1 < 10) {\n"
" return 10;\n"
"} else {\n"
" return 100;\n"
"}",
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(9)}},
{"if (p1 > 50) {\n"
" return 1;\n"
"} else if (p1 < 10) {\n"
" return 10;\n"
"} else {\n"
" return 100;\n"
"}",
{factory->NewNumberFromInt(100), factory->NewNumberFromInt(10)}},
{"if (p1 >= 0) {\n"
" if (p1 > 10) { return 2; } else { return 1; }\n"
"} else {\n"
" if (p1 < -10) { return -2; } else { return -1; }\n"
"}",
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(100)}},
{"if (p1 >= 0) {\n"
" if (p1 > 10) { return 2; } else { return 1; }\n"
"} else {\n"
" if (p1 < -10) { return -2; } else { return -1; }\n"
"}",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(10)}},
{"if (p1 >= 0) {\n"
" if (p1 > 10) { return 2; } else { return 1; }\n"
"} else {\n"
" if (p1 < -10) { return -2; } else { return -1; }\n"
"}",
{factory->NewNumberFromInt(-2), factory->NewNumberFromInt(-11)}},
{"if (p1 >= 0) {\n"
" if (p1 > 10) { return 2; } else { return 1; }\n"
"} else {\n"
" if (p1 < -10) { return -2; } else { return -1; }\n"
"}",
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(-10)}},
{"var b = 20, c;"
"if (p1 >= 0) {\n"
" if (b > 0) { c = 2; } else { c = 3; }\n"
"} else {\n"
" if (b < -10) { c = -2; } else { c = -1; }\n"
"}"
"return c;",
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(-1)}},
{"var b = 20, c = 10;"
"if (p1 >= 0) {\n"
" if (b < 0) { c = 2; }\n"
"} else {\n"
" if (b < -10) { c = -2; } else { c = -1; }\n"
"}"
"return c;",
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(1)}},
{"var x = 2, a = 10, b = 20, c, d;"
"x = 0;"
"if (a) {\n"
" b = x;"
" if (b > 0) { c = 2; } else { c = 3; }\n"
" x = 4; d = 2;"
"} else {\n"
" d = 3;\n"
"}"
"x = d;"
"function f1() {x}"
"return x + c;",
{factory->NewNumberFromInt(5), factory->NewNumberFromInt(-1)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderConditionalOperator) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return (p1 > 1) ? 1 : -1;",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(2)}},
{"return (p1 > 1) ? 1 : -1;",
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(0)}},
{"return (p1 > 50) ? 1 : ((p1 < 10) ? 10 : -10);",
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(2)}},
{"return (p1 > 50) ? 1 : ((p1 < 10) ? 10 : -10);",
{factory->NewNumberFromInt(-10), factory->NewNumberFromInt(20)}},
};
size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
for (size_t i = 0; i < num_snippets; i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderSwitch) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
const char* switch_code =
"switch (p1) {\n"
" case 1: return 0;\n"
" case 2: return 1;\n"
" case 3:\n"
" case 4: return 2;\n"
" case 9: break;\n"
" default: return 3;\n"
"}\n"
"return 9;";
ExpectedSnippet<1> snippets[] = {
{switch_code,
{factory->NewNumberFromInt(0), factory->NewNumberFromInt(1)}},
{switch_code,
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(2)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(4)}},
{switch_code,
{factory->NewNumberFromInt(9), factory->NewNumberFromInt(9)}},
{switch_code,
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(5)}},
{switch_code,
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(6)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderSwitchMerge) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
const char* switch_code =
"var x = 10;"
"switch (p1) {\n"
" case 1: x = 0;\n"
" case 2: x = 1;\n"
" case 3:\n"
" case 4: x = 2; break;\n"
" case 5: x = 3;\n"
" case 9: break;\n"
" default: x = 4;\n"
"}\n"
"return x;";
ExpectedSnippet<1> snippets[] = {
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(1)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(2)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(4)}},
{switch_code,
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(5)}},
{switch_code,
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(9)}},
{switch_code,
{factory->NewNumberFromInt(4), factory->NewNumberFromInt(6)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderNestedSwitch) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
const char* switch_code =
"switch (p1) {\n"
" case 0: {"
" switch (p2) { case 0: return 0; case 1: return 1; case 2: break; }\n"
" return -1;"
" }\n"
" case 1: {"
" switch (p2) { case 0: return 2; case 1: return 3; }\n"
" }\n"
" case 2: break;"
" }\n"
"return -2;";
ExpectedSnippet<2> snippets[] = {
{switch_code,
{factory->NewNumberFromInt(0), factory->NewNumberFromInt(0),
factory->NewNumberFromInt(0)}},
{switch_code,
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(0),
factory->NewNumberFromInt(1)}},
{switch_code,
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(0),
factory->NewNumberFromInt(2)}},
{switch_code,
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(0),
factory->NewNumberFromInt(3)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(0)}},
{switch_code,
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(1)}},
{switch_code,
{factory->NewNumberFromInt(-2), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2)}},
{switch_code,
{factory->NewNumberFromInt(-2), factory->NewNumberFromInt(2),
factory->NewNumberFromInt(0)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1, p2) { %s };\n%s(0, 0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderBreakableBlocks) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var x = 0;\n"
"my_heart: {\n"
" x = x + 1;\n"
" break my_heart;\n"
" x = x + 2;\n"
"}\n"
"return x;\n",
{factory->NewNumberFromInt(1)}},
{"var sum = 0;\n"
"outta_here: {\n"
" for (var x = 0; x < 10; ++x) {\n"
" for (var y = 0; y < 3; ++y) {\n"
" ++sum;\n"
" if (x + y == 12) { break outta_here; }\n"
" }\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumber(30)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderWhile) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var x = 1; while (x < 1) { x *= 100; } return x;",
{factory->NewNumberFromInt(1)}},
{"var x = 1, y = 0; while (x < 7) { y += x * x; x += 1; } return y;",
{factory->NewNumberFromInt(91)}},
{"var x = 1; while (true) { x += 1; if (x == 10) break; } return x;",
{factory->NewNumberFromInt(10)}},
{"var x = 1; while (false) { x += 1; } return x;",
{factory->NewNumberFromInt(1)}},
{"var x = 0;\n"
"while (true) {\n"
" while (x < 10) {\n"
" x = x * x + 1;\n"
" }"
" x += 1;\n"
" break;\n"
"}\n"
"return x;",
{factory->NewNumberFromInt(27)}},
{"var x = 1, y = 0;\n"
"while (x < 7) {\n"
" x += 1;\n"
" if (x == 2) continue;\n"
" if (x == 3) continue;\n"
" y += x * x;\n"
" if (x == 4) break;\n"
"}\n"
"return y;",
{factory->NewNumberFromInt(16)}}};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderDo) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var x = 1; do { x *= 100; } while (x < 100); return x;",
{factory->NewNumberFromInt(100)}},
{"var x = 1; do { x = x * x + 1; } while (x < 7) return x;",
{factory->NewNumberFromInt(26)}},
{"var x = 1; do { x += 1; } while (false); return x;",
{factory->NewNumberFromInt(2)}},
{"var x = 1, y = 0;\n"
"do {\n"
" x += 1;\n"
" if (x == 2) continue;\n"
" if (x == 3) continue;\n"
" y += x * x;\n"
" if (x == 4) break;\n"
"} while (x < 7);\n"
"return y;",
{factory->NewNumberFromInt(16)}}};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderFor) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"for (var x = 0;; x = 2 * x + 1) { if (x > 10) return x; }",
{factory->NewNumberFromInt(15)}},
{"for (var x = 0; true; x = 2 * x + 1) { if (x > 100) return x; }",
{factory->NewNumberFromInt(127)}},
{"for (var x = 0; false; x = 2 * x + 1) { if (x > 100) return x; } "
"return 0;",
{factory->NewNumberFromInt(0)}},
{"for (var x = 0; x < 200; x = 2 * x + 1) { x = x; } return x;",
{factory->NewNumberFromInt(255)}},
{"for (var x = 0; x < 200; x = 2 * x + 1) {} return x;",
{factory->NewNumberFromInt(255)}},
{"var sum = 0;\n"
"for (var x = 0; x < 200; x += 1) {\n"
" if (x % 2) continue;\n"
" if (sum > 10) break;\n"
" sum += x;\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(12)}},
{"var sum = 0;\n"
"for (var w = 0; w < 2; w++) {\n"
" for (var x = 0; x < 200; x += 1) {\n"
" if (x % 2) continue;\n"
" if (x > 4) break;\n"
" sum += x + w;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(15)}},
{"var sum = 0;\n"
"for (var w = 0; w < 2; w++) {\n"
" if (w == 1) break;\n"
" for (var x = 0; x < 200; x += 1) {\n"
" if (x % 2) continue;\n"
" if (x > 4) break;\n"
" sum += x + w;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(6)}},
{"var sum = 0;\n"
"for (var w = 0; w < 3; w++) {\n"
" if (w == 1) continue;\n"
" for (var x = 0; x < 200; x += 1) {\n"
" if (x % 2) continue;\n"
" if (x > 4) break;\n"
" sum += x + w;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(18)}},
{"var sum = 0;\n"
"for (var x = 1; x < 10; x += 2) {\n"
" for (var y = x; y < x + 2; y++) {\n"
" sum += y * y;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(385)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderForIn) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var sum = 0;\n"
"var empty = null;\n"
"for (var x in empty) { sum++; }\n"
"return sum;",
{factory->NewNumberFromInt(0)}},
{"var sum = 100;\n"
"var empty = 1;\n"
"for (var x in empty) { sum++; }\n"
"return sum;",
{factory->NewNumberFromInt(100)}},
{"for (var x in [ 10, 20, 30 ]) {}\n"
"return 2;",
{factory->NewNumberFromInt(2)}},
{"var last = 0;\n"
"for (var x in [ 10, 20, 30 ]) {\n"
" last = x;\n"
"}\n"
"return +last;",
{factory->NewNumberFromInt(2)}},
{"var first = -1;\n"
"for (var x in [ 10, 20, 30 ]) {\n"
" first = +x;\n"
" if (first > 0) break;\n"
"}\n"
"return first;",
{factory->NewNumberFromInt(1)}},
{"var first = -1;\n"
"for (var x in [ 10, 20, 30 ]) {\n"
" if (first >= 0) continue;\n"
" first = x;\n"
"}\n"
"return +first;",
{factory->NewNumberFromInt(0)}},
{"var sum = 0;\n"
"for (var x in [ 10, 20, 30 ]) {\n"
" for (var y in [ 11, 22, 33, 44, 55, 66, 77 ]) {\n"
" sum += 1;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(21)}},
{"var sum = 0;\n"
"for (var x in [ 10, 20, 30 ]) {\n"
" for (var y in [ 11, 22, 33, 44, 55, 66, 77 ]) {\n"
" if (sum == 7) break;\n"
" if (sum == 6) continue;\n"
" sum += 1;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(6)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderForOf) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{" var r = 0;\n"
" for (var a of [0,6,7,9]) { r += a; }\n"
" return r;\n",
{handle(Smi::FromInt(22), isolate)}},
{" var r = '';\n"
" for (var a of 'foobar') { r = a + r; }\n"
" return r;\n",
{factory->NewStringFromStaticChars("raboof")}},
{" var a = [1, 2, 3];\n"
" a.name = 4;\n"
" var r = 0;\n"
" for (var x of a) { r += x; }\n"
" return r;\n",
{handle(Smi::FromInt(6), isolate)}},
{" var r = '';\n"
" var data = [1, 2, 3]; \n"
" for (a of data) { delete data[0]; r += a; } return r;",
{factory->NewStringFromStaticChars("123")}},
{" var r = '';\n"
" var data = [1, 2, 3]; \n"
" for (a of data) { delete data[2]; r += a; } return r;",
{factory->NewStringFromStaticChars("12undefined")}},
{" var r = '';\n"
" var data = [1, 2, 3]; \n"
" for (a of data) { delete data; r += a; } return r;",
{factory->NewStringFromStaticChars("123")}},
{" var r = '';\n"
" var input = 'foobar';\n"
" for (var a of input) {\n"
" if (a == 'b') break;\n"
" r += a;\n"
" }\n"
" return r;\n",
{factory->NewStringFromStaticChars("foo")}},
{" var r = '';\n"
" var input = 'foobar';\n"
" for (var a of input) {\n"
" if (a == 'b') continue;\n"
" r += a;\n"
" }\n"
" return r;\n",
{factory->NewStringFromStaticChars("fooar")}},
{" var r = '';\n"
" var data = [1, 2, 3, 4]; \n"
" for (a of data) { data[2] = 567; r += a; }\n"
" return r;\n",
{factory->NewStringFromStaticChars("125674")}},
{" var r = '';\n"
" var data = [1, 2, 3, 4]; \n"
" for (a of data) { data[4] = 567; r += a; }\n"
" return r;\n",
{factory->NewStringFromStaticChars("1234567")}},
{" var r = '';\n"
" var data = [1, 2, 3, 4]; \n"
" for (a of data) { data[5] = 567; r += a; }\n"
" return r;\n",
{factory->NewStringFromStaticChars("1234undefined567")}},
{" var r = '';\n"
" var obj = new Object();\n"
" obj[Symbol.iterator] = function() { return {\n"
" index: 3,\n"
" data: ['a', 'b', 'c', 'd'],"
" next: function() {"
" return {"
" done: this.index == -1,\n"
" value: this.index < 0 ? undefined : this.data[this.index--]\n"
" }\n"
" }\n"
" }}\n"
" for (a of obj) { r += a }\n"
" return r;\n",
{factory->NewStringFromStaticChars("dcba")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(JumpWithConstantsAndWideConstants) {
const int kStep = 19;
int start = 7;
for (int constants = start; constants < 256 + 3 * kStep; constants += kStep) {
std::stringstream filler_os;
// Generate a string that consumes constant pool entries and
// spread out branch distances in script below.
for (int i = 0; i < constants; i++) {
filler_os << "var x_ = 'x_" << i << "';\n";
}
std::string filler(filler_os.str());
std::stringstream script_os;
script_os << "function " << kFunctionName << "(a) {\n";
script_os << " " << filler;
script_os << " for (var i = a; i < 2; i++) {\n";
script_os << " " << filler;
script_os << " if (i == 0) { " << filler << "i = 10; continue; }\n";
script_os << " else if (i == a) { " << filler << "i = 12; break; }\n";
script_os << " else { " << filler << " }\n";
script_os << " }\n";
script_os << " return i;\n";
script_os << "}\n";
script_os << kFunctionName << "(0);\n";
std::string script(script_os.str());
HandleAndZoneScope scope;
auto isolate = scope.main_isolate();
auto factory = isolate->factory();
auto zone = scope.main_zone();
for (int a = 0; a < 3; a++) {
BytecodeGraphTester tester(isolate, zone, script.c_str());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_val =
callable(factory->NewNumberFromInt(a)).ToHandleChecked();
static const int results[] = {11, 12, 2};
CHECK_EQ(Handle<Smi>::cast(return_val)->value(), results[a]);
}
}
}
TEST(BytecodeGraphBuilderDoExpressions) {
bool old_flag = FLAG_harmony_do_expressions;
FLAG_harmony_do_expressions = true;
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var a = do {}; return a;", {factory->undefined_value()}},
{"var a = do { var x = 100; }; return a;", {factory->undefined_value()}},
{"var a = do { var x = 100; }; return a;", {factory->undefined_value()}},
{"var a = do { var x = 100; x++; }; return a;",
{handle(Smi::FromInt(100), isolate)}},
{"var i = 0; for (; i < 5;) { i = do { if (i == 3) { break; }; i + 1; }};"
"return i;",
{handle(Smi::FromInt(3), isolate)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
FLAG_harmony_do_expressions = old_flag;
}
TEST(BytecodeGraphBuilderWithStatement) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
ExpectedSnippet<0> snippets[] = {
{"with({x:42}) return x;", {handle(Smi::FromInt(42), isolate)}},
{"with({}) { var y = 10; return y;}",
{handle(Smi::FromInt(10), isolate)}},
{"var y = {x:42};"
" function inner() {"
" var x = 20;"
" with(y) return x;"
"}"
"return inner();",
{handle(Smi::FromInt(42), isolate)}},
{"var y = {x:42};"
" function inner(o) {"
" var x = 20;"
" with(o) return x;"
"}"
"return inner(y);",
{handle(Smi::FromInt(42), isolate)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderConstDeclaration) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"const x = 3; return x;", {handle(Smi::FromInt(3), isolate)}},
{"let x = 10; x = x + 20; return x;",
{handle(Smi::FromInt(30), isolate)}},
{"let x = 10; x = 20; return x;", {handle(Smi::FromInt(20), isolate)}},
{"let x; x = 20; return x;", {handle(Smi::FromInt(20), isolate)}},
{"let x; return x;", {factory->undefined_value()}},
{"var x = 10; { let x = 30; } return x;",
{handle(Smi::FromInt(10), isolate)}},
{"let x = 10; { let x = 20; } return x;",
{handle(Smi::FromInt(10), isolate)}},
{"var x = 10; eval('let x = 20;'); return x;",
{handle(Smi::FromInt(10), isolate)}},
{"var x = 10; eval('const x = 20;'); return x;",
{handle(Smi::FromInt(10), isolate)}},
{"var x = 10; { const x = 20; } return x;",
{handle(Smi::FromInt(10), isolate)}},
{"var x = 10; { const x = 20; return x;} return -1;",
{handle(Smi::FromInt(20), isolate)}},
{"var a = 10;\n"
"for (var i = 0; i < 10; ++i) {\n"
" const x = i;\n" // const declarations are block scoped.
" a = a + x;\n"
"}\n"
"return a;\n",
{handle(Smi::FromInt(55), isolate)}},
};
// Tests for sloppy mode.
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
// Tests for strict mode.
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() {'use strict'; %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderConstDeclarationLookupSlots) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"const x = 3; function f1() {return x;}; return x;",
{handle(Smi::FromInt(3), isolate)}},
{"let x = 10; x = x + 20; function f1() {return x;}; return x;",
{handle(Smi::FromInt(30), isolate)}},
{"let x; x = 20; function f1() {return x;}; return x;",
{handle(Smi::FromInt(20), isolate)}},
{"let x; function f1() {return x;}; return x;",
{factory->undefined_value()}},
};
// Tests for sloppy mode.
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
// Tests for strict mode.
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() {'use strict'; %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderConstInLookupContextChain) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
const char* prologue =
"function OuterMost() {\n"
" const outerConst = 10;\n"
" let outerLet = 20;\n"
" function Outer() {\n"
" function Inner() {\n"
" this.innerFunc = function() { ";
const char* epilogue =
" }\n"
" }\n"
" this.getInnerFunc ="
" function() {return new Inner().innerFunc;}\n"
" }\n"
" this.getOuterFunc ="
" function() {return new Outer().getInnerFunc();}"
"}\n"
"var f = new OuterMost().getOuterFunc();\n"
"f();\n";
// Tests for let / constant.
ExpectedSnippet<0> const_decl[] = {
{"return outerConst;", {handle(Smi::FromInt(10), isolate)}},
{"return outerLet;", {handle(Smi::FromInt(20), isolate)}},
{"outerLet = 30; return outerLet;", {handle(Smi::FromInt(30), isolate)}},
{"var outerLet = 40; return outerLet;",
{handle(Smi::FromInt(40), isolate)}},
{"var outerConst = 50; return outerConst;",
{handle(Smi::FromInt(50), isolate)}},
{"try { outerConst = 30 } catch(e) { return -1; }",
{handle(Smi::FromInt(-1), isolate)}}};
for (size_t i = 0; i < arraysize(const_decl); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s %s %s", prologue, const_decl[i].code_snippet,
epilogue);
BytecodeGraphTester tester(isolate, zone, script.start(), "*");
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*const_decl[i].return_value()));
}
// Tests for Legacy constant.
bool old_flag_legacy_const = FLAG_legacy_const;
FLAG_legacy_const = true;
ExpectedSnippet<0> legacy_const_decl[] = {
{"return outerConst = 23;", {handle(Smi::FromInt(23), isolate)}},
{"outerConst = 30; return outerConst;",
{handle(Smi::FromInt(10), isolate)}},
};
for (size_t i = 0; i < arraysize(legacy_const_decl); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s %s %s", prologue, legacy_const_decl[i].code_snippet,
epilogue);
BytecodeGraphTester tester(isolate, zone, script.start(), "*");
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*legacy_const_decl[i].return_value()));
}
FLAG_legacy_const = old_flag_legacy_const;
}
TEST(BytecodeGraphBuilderIllegalConstDeclaration) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
ExpectedSnippet<0, const char*> illegal_const_decl[] = {
{"const x = x = 10 + 3; return x;",
{"Uncaught ReferenceError: x is not defined"}},
{"const x = 10; x = 20; return x;",
{"Uncaught TypeError: Assignment to constant variable."}},
{"const x = 10; { x = 20; } return x;",
{"Uncaught TypeError: Assignment to constant variable."}},
{"const x = 10; eval('x = 20;'); return x;",
{"Uncaught TypeError: Assignment to constant variable."}},
{"let x = x + 10; return x;",
{"Uncaught ReferenceError: x is not defined"}},
{"'use strict'; (function f1() { f1 = 123; })() ",
{"Uncaught TypeError: Assignment to constant variable."}},
};
// Tests for sloppy mode.
for (size_t i = 0; i < arraysize(illegal_const_decl); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
illegal_const_decl[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
v8::Local<v8::String> message = tester.CheckThrowsReturnMessage()->Get();
v8::Local<v8::String> expected_string =
v8_str(illegal_const_decl[i].return_value());
CHECK(
message->Equals(CcTest::isolate()->GetCurrentContext(), expected_string)
.FromJust());
}
// Tests for strict mode.
for (size_t i = 0; i < arraysize(illegal_const_decl); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() {'use strict'; %s }\n%s();", kFunctionName,
illegal_const_decl[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
v8::Local<v8::String> message = tester.CheckThrowsReturnMessage()->Get();
v8::Local<v8::String> expected_string =
v8_str(illegal_const_decl[i].return_value());
CHECK(
message->Equals(CcTest::isolate()->GetCurrentContext(), expected_string)
.FromJust());
}
}
TEST(BytecodeGraphBuilderLegacyConstDeclaration) {
bool old_flag_legacy_const = FLAG_legacy_const;
FLAG_legacy_const = true;
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
ExpectedSnippet<0> snippets[] = {
{"const x = (x = 10) + 3; return x;",
{handle(Smi::FromInt(13), isolate)}},
{"const x = 10; x = 20; return x;", {handle(Smi::FromInt(10), isolate)}},
{"var a = 10;\n"
"for (var i = 0; i < 10; ++i) {\n"
" const x = i;\n" // Legacy constants are not block scoped.
" a = a + x;\n"
"}\n"
"return a;\n",
{handle(Smi::FromInt(10), isolate)}},
{"const x = 20; eval('x = 10;'); return x;",
{handle(Smi::FromInt(20), isolate)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
FLAG_legacy_const = old_flag_legacy_const;
}
TEST(BytecodeGraphBuilderDebuggerStatement) {
FLAG_expose_debug_as = "debug";
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Zone* zone = scope.main_zone();
ExpectedSnippet<0> snippet = {
"var Debug = debug.Debug;"
"var count = 0;"
"function f() {"
" debugger;"
"}"
"function listener(event) {"
" if (event == Debug.DebugEvent.Break) count++;"
"}"
"Debug.setListener(listener);"
"f();"
"Debug.setListener(null);"
"return count;",
{handle(Smi::FromInt(1), isolate)}};
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippet.code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, zone, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippet.return_value()));
}
} // namespace compiler
} // namespace internal
} // namespace v8
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