jdk

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/*
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 * Copyright (c) 2017, 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/x/xBitField.hpp"
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#include "unittest.hpp"
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TEST(XBitFieldTest, test) {
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  typedef XBitField<uint64_t, bool,      0,  1>    field_bool;
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  typedef XBitField<uint64_t, uint8_t,   1,  8>    field_uint8;
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  typedef XBitField<uint64_t, uint16_t,  2, 16>    field_uint16;
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  typedef XBitField<uint64_t, uint32_t, 32, 32>    field_uint32;
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  typedef XBitField<uint64_t, uint64_t,  0, 63>    field_uint64;
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  typedef XBitField<uint64_t, void*,     1, 61, 3> field_pointer;
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  uint64_t entry;
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  {
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    const bool value = false;
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    entry = field_bool::encode(value);
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    EXPECT_EQ(field_bool::decode(entry), value) << "Should be equal";
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  }
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  {
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    const bool value = true;
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    entry = field_bool::encode(value);
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      EXPECT_EQ(field_bool::decode(entry), value) << "Should be equal";
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  }
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  {
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    const uint8_t value = ~(uint8_t)0;
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    entry = field_uint8::encode(value);
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    EXPECT_EQ(field_uint8::decode(entry), value) << "Should be equal";
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  }
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  {
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    const uint16_t value = ~(uint16_t)0;
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    entry = field_uint16::encode(value);
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    EXPECT_EQ(field_uint16::decode(entry), value) << "Should be equal";
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  }
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  {
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    const uint32_t value = ~(uint32_t)0;
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    entry = field_uint32::encode(value);
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    EXPECT_EQ(field_uint32::decode(entry), value) << "Should be equal";
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  }
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  {
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    const uint64_t value = ~(uint64_t)0 >> 1;
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    entry = field_uint64::encode(value);
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    EXPECT_EQ(field_uint64::decode(entry), value) << "Should be equal";
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  }
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  {
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    void* const value = (void*)(~(uintptr_t)0 << 3);
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    entry = field_pointer::encode(value);
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    EXPECT_EQ(field_pointer::decode(entry), value) << "Should be equal";
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  }
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}
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