v8/test/cctest/test-compiler.cc
marja@chromium.org 932a29a66a New compilation API, part 2.
This CL makes the Parser produce the data PreParser used to produce. This
enables us to get rid of the unnecessary preparsing phase.

The first part is here: https://codereview.chromium.org/199063003/

BUG=
R=dcarney@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/203353002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20075 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-03-19 13:24:13 +00:00

403 lines
14 KiB
C++

// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <stdlib.h>
#include <wchar.h>
#include "v8.h"
#include "compiler.h"
#include "disasm.h"
#include "cctest.h"
using namespace v8::internal;
static MaybeObject* GetGlobalProperty(const char* name) {
Isolate* isolate = CcTest::i_isolate();
Handle<String> internalized_name =
isolate->factory()->InternalizeUtf8String(name);
return isolate->context()->global_object()->GetProperty(*internalized_name);
}
static void SetGlobalProperty(const char* name, Object* value) {
Isolate* isolate = CcTest::i_isolate();
Handle<Object> object(value, isolate);
Handle<String> internalized_name =
isolate->factory()->InternalizeUtf8String(name);
Handle<JSObject> global(isolate->context()->global_object());
Runtime::SetObjectProperty(isolate, global, internalized_name, object, NONE,
SLOPPY);
}
static Handle<JSFunction> Compile(const char* source) {
Isolate* isolate = CcTest::i_isolate();
Handle<String> source_code(
isolate->factory()->NewStringFromUtf8(CStrVector(source)));
Handle<SharedFunctionInfo> shared_function =
Compiler::CompileScript(source_code,
Handle<String>(),
0,
0,
false,
Handle<Context>(isolate->native_context()),
NULL, NULL, NO_CACHED_DATA,
NOT_NATIVES_CODE);
return isolate->factory()->NewFunctionFromSharedFunctionInfo(
shared_function, isolate->native_context());
}
static double Inc(Isolate* isolate, int x) {
const char* source = "result = %d + 1;";
EmbeddedVector<char, 512> buffer;
OS::SNPrintF(buffer, source, x);
Handle<JSFunction> fun = Compile(buffer.start());
if (fun.is_null()) return -1;
bool has_pending_exception;
Handle<JSObject> global(isolate->context()->global_object());
Execution::Call(isolate, fun, global, 0, NULL, &has_pending_exception);
CHECK(!has_pending_exception);
return GetGlobalProperty("result")->ToObjectChecked()->Number();
}
TEST(Inc) {
CcTest::InitializeVM();
v8::HandleScope scope(CcTest::isolate());
CHECK_EQ(4.0, Inc(CcTest::i_isolate(), 3));
}
static double Add(Isolate* isolate, int x, int y) {
Handle<JSFunction> fun = Compile("result = x + y;");
if (fun.is_null()) return -1;
SetGlobalProperty("x", Smi::FromInt(x));
SetGlobalProperty("y", Smi::FromInt(y));
bool has_pending_exception;
Handle<JSObject> global(isolate->context()->global_object());
Execution::Call(isolate, fun, global, 0, NULL, &has_pending_exception);
CHECK(!has_pending_exception);
return GetGlobalProperty("result")->ToObjectChecked()->Number();
}
TEST(Add) {
CcTest::InitializeVM();
v8::HandleScope scope(CcTest::isolate());
CHECK_EQ(5.0, Add(CcTest::i_isolate(), 2, 3));
}
static double Abs(Isolate* isolate, int x) {
Handle<JSFunction> fun = Compile("if (x < 0) result = -x; else result = x;");
if (fun.is_null()) return -1;
SetGlobalProperty("x", Smi::FromInt(x));
bool has_pending_exception;
Handle<JSObject> global(isolate->context()->global_object());
Execution::Call(isolate, fun, global, 0, NULL, &has_pending_exception);
CHECK(!has_pending_exception);
return GetGlobalProperty("result")->ToObjectChecked()->Number();
}
TEST(Abs) {
CcTest::InitializeVM();
v8::HandleScope scope(CcTest::isolate());
CHECK_EQ(3.0, Abs(CcTest::i_isolate(), -3));
}
static double Sum(Isolate* isolate, int n) {
Handle<JSFunction> fun =
Compile("s = 0; while (n > 0) { s += n; n -= 1; }; result = s;");
if (fun.is_null()) return -1;
SetGlobalProperty("n", Smi::FromInt(n));
bool has_pending_exception;
Handle<JSObject> global(isolate->context()->global_object());
Execution::Call(isolate, fun, global, 0, NULL, &has_pending_exception);
CHECK(!has_pending_exception);
return GetGlobalProperty("result")->ToObjectChecked()->Number();
}
TEST(Sum) {
CcTest::InitializeVM();
v8::HandleScope scope(CcTest::isolate());
CHECK_EQ(5050.0, Sum(CcTest::i_isolate(), 100));
}
TEST(Print) {
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> context = CcTest::NewContext(PRINT_EXTENSION);
v8::Context::Scope context_scope(context);
const char* source = "for (n = 0; n < 100; ++n) print(n, 1, 2);";
Handle<JSFunction> fun = Compile(source);
if (fun.is_null()) return;
bool has_pending_exception;
Handle<JSObject> global(CcTest::i_isolate()->context()->global_object());
Execution::Call(
CcTest::i_isolate(), fun, global, 0, NULL, &has_pending_exception);
CHECK(!has_pending_exception);
}
// The following test method stems from my coding efforts today. It
// tests all the functionality I have added to the compiler today
TEST(Stuff) {
CcTest::InitializeVM();
v8::HandleScope scope(CcTest::isolate());
const char* source =
"r = 0;\n"
"a = new Object;\n"
"if (a == a) r+=1;\n" // 1
"if (a != new Object()) r+=2;\n" // 2
"a.x = 42;\n"
"if (a.x == 42) r+=4;\n" // 4
"function foo() { var x = 87; return x; }\n"
"if (foo() == 87) r+=8;\n" // 8
"function bar() { var x; x = 99; return x; }\n"
"if (bar() == 99) r+=16;\n" // 16
"function baz() { var x = 1, y, z = 2; y = 3; return x + y + z; }\n"
"if (baz() == 6) r+=32;\n" // 32
"function Cons0() { this.x = 42; this.y = 87; }\n"
"if (new Cons0().x == 42) r+=64;\n" // 64
"if (new Cons0().y == 87) r+=128;\n" // 128
"function Cons2(x, y) { this.sum = x + y; }\n"
"if (new Cons2(3,4).sum == 7) r+=256;"; // 256
Handle<JSFunction> fun = Compile(source);
CHECK(!fun.is_null());
bool has_pending_exception;
Handle<JSObject> global(CcTest::i_isolate()->context()->global_object());
Execution::Call(
CcTest::i_isolate(), fun, global, 0, NULL, &has_pending_exception);
CHECK(!has_pending_exception);
CHECK_EQ(511.0, GetGlobalProperty("r")->ToObjectChecked()->Number());
}
TEST(UncaughtThrow) {
CcTest::InitializeVM();
v8::HandleScope scope(CcTest::isolate());
const char* source = "throw 42;";
Handle<JSFunction> fun = Compile(source);
CHECK(!fun.is_null());
bool has_pending_exception;
Isolate* isolate = fun->GetIsolate();
Handle<JSObject> global(isolate->context()->global_object());
Execution::Call(isolate, fun, global, 0, NULL, &has_pending_exception);
CHECK(has_pending_exception);
CHECK_EQ(42.0, isolate->pending_exception()->ToObjectChecked()->Number());
}
// Tests calling a builtin function from C/C++ code, and the builtin function
// performs GC. It creates a stack frame looks like following:
// | C (PerformGC) |
// | JS-to-C |
// | JS |
// | C-to-JS |
TEST(C2JSFrames) {
FLAG_expose_gc = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> context =
CcTest::NewContext(PRINT_EXTENSION | GC_EXTENSION);
v8::Context::Scope context_scope(context);
const char* source = "function foo(a) { gc(), print(a); }";
Handle<JSFunction> fun0 = Compile(source);
CHECK(!fun0.is_null());
Isolate* isolate = fun0->GetIsolate();
// Run the generated code to populate the global object with 'foo'.
bool has_pending_exception;
Handle<JSObject> global(isolate->context()->global_object());
Execution::Call(
isolate, fun0, global, 0, NULL, &has_pending_exception);
CHECK(!has_pending_exception);
Object* foo_string = isolate->factory()->InternalizeOneByteString(
STATIC_ASCII_VECTOR("foo"))->ToObjectChecked();
MaybeObject* fun1_object = isolate->context()->global_object()->
GetProperty(String::cast(foo_string));
Handle<Object> fun1(fun1_object->ToObjectChecked(), isolate);
CHECK(fun1->IsJSFunction());
Handle<Object> argv[] = { isolate->factory()->InternalizeOneByteString(
STATIC_ASCII_VECTOR("hello")) };
Execution::Call(isolate,
Handle<JSFunction>::cast(fun1),
global,
ARRAY_SIZE(argv),
argv,
&has_pending_exception);
CHECK(!has_pending_exception);
}
// Regression 236. Calling InitLineEnds on a Script with undefined
// source resulted in crash.
TEST(Regression236) {
CcTest::InitializeVM();
Isolate* isolate = CcTest::i_isolate();
Factory* factory = isolate->factory();
v8::HandleScope scope(CcTest::isolate());
Handle<Script> script = factory->NewScript(factory->empty_string());
script->set_source(CcTest::heap()->undefined_value());
CHECK_EQ(-1, GetScriptLineNumber(script, 0));
CHECK_EQ(-1, GetScriptLineNumber(script, 100));
CHECK_EQ(-1, GetScriptLineNumber(script, -1));
}
TEST(GetScriptLineNumber) {
LocalContext context;
v8::HandleScope scope(CcTest::isolate());
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::NewFromUtf8(CcTest::isolate(), "test"));
const char function_f[] = "function f() {}";
const int max_rows = 1000;
const int buffer_size = max_rows + sizeof(function_f);
ScopedVector<char> buffer(buffer_size);
memset(buffer.start(), '\n', buffer_size - 1);
buffer[buffer_size - 1] = '\0';
for (int i = 0; i < max_rows; ++i) {
if (i > 0)
buffer[i - 1] = '\n';
OS::MemCopy(&buffer[i], function_f, sizeof(function_f) - 1);
v8::Handle<v8::String> script_body =
v8::String::NewFromUtf8(CcTest::isolate(), buffer.start());
v8::Script::Compile(script_body, &origin)->Run();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(context->Global()->Get(
v8::String::NewFromUtf8(CcTest::isolate(), "f")));
CHECK_EQ(i, f->GetScriptLineNumber());
}
}
// Test that optimized code for different closures is actually shared
// immediately by the FastNewClosureStub when run in the same context.
TEST(OptimizedCodeSharing) {
// Skip test if --cache-optimized-code is not activated by default because
// FastNewClosureStub that is baked into the snapshot is incorrect.
if (!FLAG_cache_optimized_code) return;
FLAG_stress_compaction = false;
FLAG_allow_natives_syntax = true;
CcTest::InitializeVM();
v8::HandleScope scope(CcTest::isolate());
for (int i = 0; i < 10; i++) {
LocalContext env;
env->Global()->Set(v8::String::NewFromUtf8(CcTest::isolate(), "x"),
v8::Integer::New(CcTest::isolate(), i));
CompileRun("function MakeClosure() {"
" return function() { return x; };"
"}"
"var closure0 = MakeClosure();"
"%DebugPrint(closure0());"
"%OptimizeFunctionOnNextCall(closure0);"
"%DebugPrint(closure0());"
"var closure1 = MakeClosure();"
"var closure2 = MakeClosure();");
Handle<JSFunction> fun1 = v8::Utils::OpenHandle(
*v8::Local<v8::Function>::Cast(env->Global()->Get(v8_str("closure1"))));
Handle<JSFunction> fun2 = v8::Utils::OpenHandle(
*v8::Local<v8::Function>::Cast(env->Global()->Get(v8_str("closure2"))));
CHECK(fun1->IsOptimized()
|| !CcTest::i_isolate()->use_crankshaft() || !fun1->IsOptimizable());
CHECK(fun2->IsOptimized()
|| !CcTest::i_isolate()->use_crankshaft() || !fun2->IsOptimizable());
CHECK_EQ(fun1->code(), fun2->code());
}
}
#ifdef ENABLE_DISASSEMBLER
static Handle<JSFunction> GetJSFunction(v8::Handle<v8::Object> obj,
const char* property_name) {
v8::Local<v8::Function> fun =
v8::Local<v8::Function>::Cast(obj->Get(v8_str(property_name)));
return v8::Utils::OpenHandle(*fun);
}
static void CheckCodeForUnsafeLiteral(Handle<JSFunction> f) {
// Create a disassembler with default name lookup.
disasm::NameConverter name_converter;
disasm::Disassembler d(name_converter);
if (f->code()->kind() == Code::FUNCTION) {
Address pc = f->code()->instruction_start();
int decode_size =
Min(f->code()->instruction_size(),
static_cast<int>(f->code()->back_edge_table_offset()));
Address end = pc + decode_size;
v8::internal::EmbeddedVector<char, 128> decode_buffer;
v8::internal::EmbeddedVector<char, 128> smi_hex_buffer;
Smi* smi = Smi::FromInt(12345678);
OS::SNPrintF(smi_hex_buffer, "0x%lx", reinterpret_cast<intptr_t>(smi));
while (pc < end) {
int num_const = d.ConstantPoolSizeAt(pc);
if (num_const >= 0) {
pc += (num_const + 1) * kPointerSize;
} else {
pc += d.InstructionDecode(decode_buffer, pc);
CHECK(strstr(decode_buffer.start(), smi_hex_buffer.start()) == NULL);
}
}
}
}
TEST(SplitConstantsInFullCompiler) {
LocalContext context;
v8::HandleScope scope(CcTest::isolate());
CompileRun("function f() { a = 12345678 }; f();");
CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
CompileRun("function f(x) { a = 12345678 + x}; f(1);");
CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
CompileRun("function f(x) { var arguments = 1; x += 12345678}; f(1);");
CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
CompileRun("function f(x) { var arguments = 1; x = 12345678}; f(1);");
CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
}
#endif