Removed dead function V8::FillHeapNumberWithRandom.

test/cctest/test-random.cc

-// 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 (!CcTest::i_isolate()->use_crankshaft()) return;
-  v8::Isolate* v8_isolate = CcTest::isolate();
-  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 = CcTest::i_isolate()->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, 0x00000001);
-}