88910423c2
R=svenpanne@chromium.org BUG= Review URL: https://codereview.chromium.org/23661004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16545 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
110 lines
4.3 KiB
C++
110 lines
4.3 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 "v8.h"
|
|
|
|
#include "cctest.h"
|
|
#include "compiler.h"
|
|
#include "execution.h"
|
|
#include "isolate.h"
|
|
|
|
|
|
using namespace v8::internal;
|
|
|
|
|
|
void SetSeeds(Handle<ByteArray> seeds, uint32_t state0, uint32_t state1) {
|
|
for (int i = 0; i < 4; i++) {
|
|
seeds->set(i, static_cast<byte>(state0 >> (i * kBitsPerByte)));
|
|
seeds->set(i + 4, static_cast<byte>(state1 >> (i * kBitsPerByte)));
|
|
}
|
|
}
|
|
|
|
|
|
void TestSeeds(Handle<JSFunction> fun,
|
|
Handle<Context> context,
|
|
uint32_t state0,
|
|
uint32_t state1) {
|
|
bool has_pending_exception;
|
|
Handle<JSObject> global(context->global_object());
|
|
Handle<ByteArray> seeds(context->random_seed());
|
|
|
|
SetSeeds(seeds, state0, state1);
|
|
Handle<Object> value = Execution::Call(
|
|
context->GetIsolate(), fun, global, 0, NULL, &has_pending_exception);
|
|
CHECK(value->IsHeapNumber());
|
|
CHECK(fun->IsOptimized());
|
|
double crankshaft_value = HeapNumber::cast(*value)->value();
|
|
|
|
SetSeeds(seeds, state0, state1);
|
|
V8::FillHeapNumberWithRandom(*value, *context);
|
|
double runtime_value = HeapNumber::cast(*value)->value();
|
|
CHECK_EQ(runtime_value, crankshaft_value);
|
|
}
|
|
|
|
|
|
TEST(CrankshaftRandom) {
|
|
v8::V8::Initialize();
|
|
// Skip test if crankshaft is disabled.
|
|
if (!Isolate::Current()->use_crankshaft()) return;
|
|
v8::Isolate* v8_isolate = v8::Isolate::GetCurrent();
|
|
v8::HandleScope scope(v8_isolate);
|
|
v8::Context::Scope context_scope(v8::Context::New(v8_isolate));
|
|
|
|
i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
|
|
Handle<Context> context(isolate->context());
|
|
Handle<JSObject> global(context->global_object());
|
|
Handle<ByteArray> seeds(context->random_seed());
|
|
bool has_pending_exception;
|
|
|
|
CompileRun("function f() { return Math.random(); }");
|
|
|
|
Object* string = Isolate::Current()->factory()->InternalizeOneByteString(
|
|
STATIC_ASCII_VECTOR("f"))->ToObjectChecked();
|
|
MaybeObject* fun_object =
|
|
context->global_object()->GetProperty(String::cast(string));
|
|
Handle<JSFunction> fun(JSFunction::cast(fun_object->ToObjectChecked()));
|
|
|
|
// Optimize function.
|
|
Execution::Call(isolate, fun, global, 0, NULL, &has_pending_exception);
|
|
Execution::Call(isolate, fun, global, 0, NULL, &has_pending_exception);
|
|
if (!fun->IsOptimized()) fun->MarkForLazyRecompilation();
|
|
|
|
// Test with some random values.
|
|
TestSeeds(fun, context, 0xC0C0AFFE, 0x31415926);
|
|
TestSeeds(fun, context, 0x01020304, 0xFFFFFFFF);
|
|
TestSeeds(fun, context, 0x00000001, 0x00000000);
|
|
|
|
// Test that we bail out to runtime when seeds are uninitialized (zeros).
|
|
SetSeeds(seeds, 0, 0);
|
|
Handle<Object> value =
|
|
Execution::Call(isolate, fun, global, 0, NULL, &has_pending_exception);
|
|
CHECK(value->IsHeapNumber());
|
|
CHECK(fun->IsOptimized());
|
|
double crankshaft_value = HeapNumber::cast(*value)->value();
|
|
CHECK_NE(0.0, crankshaft_value);
|
|
}
|