Merge base unit tests into src to be in line with Chrome.

test/base-unittests/bits-unittest.cc

-// Copyright 2014 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 "src/base/bits.h"
-#include "src/base/macros.h"
-#include "testing/gtest-support.h"
-
-namespace v8 {
-namespace base {
-namespace bits {
-
-TEST(BitsTest, CountPopulation32) {
-  EXPECT_EQ(0u, CountPopulation32(0));
-  EXPECT_EQ(1u, CountPopulation32(1));
-  EXPECT_EQ(8u, CountPopulation32(0x11111111));
-  EXPECT_EQ(16u, CountPopulation32(0xf0f0f0f0));
-  EXPECT_EQ(24u, CountPopulation32(0xfff0f0ff));
-  EXPECT_EQ(32u, CountPopulation32(0xffffffff));
-}
-
-
-TEST(BitsTest, CountLeadingZeros32) {
-  EXPECT_EQ(32u, CountLeadingZeros32(0));
-  EXPECT_EQ(31u, CountLeadingZeros32(1));
-  TRACED_FORRANGE(uint32_t, shift, 0, 31) {
-    EXPECT_EQ(31u - shift, CountLeadingZeros32(1u << shift));
-  }
-  EXPECT_EQ(4u, CountLeadingZeros32(0x0f0f0f0f));
-}
-
-
-TEST(BitsTest, CountTrailingZeros32) {
-  EXPECT_EQ(32u, CountTrailingZeros32(0));
-  EXPECT_EQ(31u, CountTrailingZeros32(0x80000000));
-  TRACED_FORRANGE(uint32_t, shift, 0, 31) {
-    EXPECT_EQ(shift, CountTrailingZeros32(1u << shift));
-  }
-  EXPECT_EQ(4u, CountTrailingZeros32(0xf0f0f0f0));
-}
-
-
-TEST(BitsTest, RotateRight32) {
-  TRACED_FORRANGE(uint32_t, shift, 0, 31) {
-    EXPECT_EQ(0u, RotateRight32(0u, shift));
-  }
-  EXPECT_EQ(1u, RotateRight32(1, 0));
-  EXPECT_EQ(1u, RotateRight32(2, 1));
-  EXPECT_EQ(0x80000000u, RotateRight32(1, 1));
-}
-
-
-TEST(BitsTest, RotateRight64) {
-  TRACED_FORRANGE(uint64_t, shift, 0, 63) {
-    EXPECT_EQ(0u, RotateRight64(0u, shift));
-  }
-  EXPECT_EQ(1u, RotateRight64(1, 0));
-  EXPECT_EQ(1u, RotateRight64(2, 1));
-  EXPECT_EQ(V8_UINT64_C(0x8000000000000000), RotateRight64(1, 1));
-}
-
-}  // namespace bits
-}  // namespace base
-}  // namespace v8