author | pliden |
Wed, 13 Mar 2019 11:31:00 +0100 | |
changeset 54094 | ed3c6f07faab |
parent 50975 | b833992fa8fa |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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#include "precompiled.hpp" |
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#include "gc/z/zBitMap.inline.hpp" |
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#include "unittest.hpp" |
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class ZBitMapTest : public ::testing::Test { |
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protected: |
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static void test_set_pair_unset(size_t size, bool finalizable) { |
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ZBitMap bitmap(size); |
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for (BitMap::idx_t i = 0; i < size - 1; i++) { |
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if ((i + 1) % BitsPerWord == 0) { |
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// Can't set pairs of bits in different words. |
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continue; |
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} |
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// ZBitMaps are not cleared when constructed. |
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bitmap.clear(); |
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bool inc_live = false; |
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bool ret = bitmap.par_set_bit_pair(i, finalizable, inc_live); |
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EXPECT_TRUE(ret) << "Failed to set bit"; |
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EXPECT_TRUE(inc_live) << "Should have set inc_live"; |
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// First bit should always be set |
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EXPECT_TRUE(bitmap.at(i)) << "Should be set"; |
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// Second bit should only be set when marking strong |
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EXPECT_NE(bitmap.at(i + 1), finalizable); |
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} |
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} |
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static void test_set_pair_set(size_t size, bool finalizable) { |
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ZBitMap bitmap(size); |
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for (BitMap::idx_t i = 0; i < size - 1; i++) { |
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if ((i + 1) % BitsPerWord == 0) { |
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// Can't set pairs of bits in different words. |
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continue; |
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} |
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// Fill the bitmap with ones. |
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bitmap.set_range(0, size); |
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bool inc_live = false; |
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bool ret = bitmap.par_set_bit_pair(i, finalizable, inc_live); |
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EXPECT_FALSE(ret) << "Should not succeed setting bit"; |
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EXPECT_FALSE(inc_live) << "Should not have set inc_live"; |
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// Both bits were pre-set. |
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EXPECT_TRUE(bitmap.at(i)) << "Should be set"; |
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EXPECT_TRUE(bitmap.at(i + 1)) << "Should be set"; |
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} |
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} |
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static void test_set_pair_set(bool finalizable) { |
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test_set_pair_set(2, finalizable); |
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test_set_pair_set(62, finalizable); |
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test_set_pair_set(64, finalizable); |
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test_set_pair_set(66, finalizable); |
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test_set_pair_set(126, finalizable); |
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test_set_pair_set(128, finalizable); |
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} |
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static void test_set_pair_unset(bool finalizable) { |
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test_set_pair_unset(2, finalizable); |
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test_set_pair_unset(62, finalizable); |
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test_set_pair_unset(64, finalizable); |
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test_set_pair_unset(66, finalizable); |
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test_set_pair_unset(126, finalizable); |
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test_set_pair_unset(128, finalizable); |
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} |
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}; |
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TEST_F(ZBitMapTest, test_set_pair_set) { |
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test_set_pair_set(false); |
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test_set_pair_set(true); |
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} |
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TEST_F(ZBitMapTest, test_set_pair_unset) { |
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test_set_pair_unset(false); |
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test_set_pair_unset(true); |
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} |