jdk-24/test/hotspot/gtest/gc/z/test_zBitField.cpp
Per Lidén e7af7a4aef 8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Erik Osterlund <erik.osterlund@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Kim Barrett <kim.barrett@oracle.com>
Co-authored-by: Nils Eliasson <nils.eliasson@oracle.com>
Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Co-authored-by: Roland Westrelin <rwestrel@redhat.com>
Co-authored-by: Coleen Phillimore <coleen.phillimore@oracle.com>
Co-authored-by: Robbin Ehn <robbin.ehn@oracle.com>
Co-authored-by: Gerard Ziemski <gerard.ziemski@oracle.com>
Co-authored-by: Hugh Wilkinson <hugh.wilkinson@intel.com>
Co-authored-by: Sandhya Viswanathan <sandhya.viswanathan@intel.com>
Co-authored-by: Bill Wheeler <bill.npo.wheeler@intel.com>
Co-authored-by: Vinay K. Awasthi <vinay.k.awasthi@intel.com>
Co-authored-by: Yasumasa Suenaga <yasuenag@gmail.com>
Reviewed-by: pliden, stefank, eosterlund, ehelin, sjohanss, rbackman, coleenp, ihse, jgeorge, lmesnik, rkennke
2018-06-12 17:40:28 +02:00

62 lines
1.8 KiB
C++

/*
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
#include "precompiled.hpp"
#include "gc/z/zBitField.hpp"
#include "unittest.hpp"
TEST(ZBitFieldTest, test) {
typedef ZBitField<uint64_t, bool, 0, 1> field_bool;
typedef ZBitField<uint64_t, uint8_t, 1, 8> field_uint8;
typedef ZBitField<uint64_t, uint16_t, 2, 16> field_uint16;
typedef ZBitField<uint64_t, uint32_t, 32, 32> field_uint32;
typedef ZBitField<uint64_t, uint64_t, 0, 63> field_uint64;
typedef ZBitField<uint64_t, void*, 1, 61, 3> field_pointer;
uint64_t entry;
{
const bool value = false;
entry = field_bool::encode(value);
EXPECT_EQ(field_bool::decode(entry), value) << "Should be equal";
}
{
const bool value = true;
entry = field_bool::encode(value);
EXPECT_EQ(field_bool::decode(entry), value) << "Should be equal";
}
{
const uint8_t value = ~(uint8_t)0;
entry = field_uint8::encode(value);
EXPECT_EQ(field_uint8::decode(entry), value) << "Should be equal";
}
{
const uint16_t value = ~(uint16_t)0;
entry = field_uint16::encode(value);
EXPECT_EQ(field_uint16::decode(entry), value) << "Should be equal";
}
{
const uint32_t value = ~(uint32_t)0;
entry = field_uint32::encode(value);
EXPECT_EQ(field_uint32::decode(entry), value) << "Should be equal";
}
{
const uint64_t value = ~(uint64_t)0 >> 1;
entry = field_uint64::encode(value);
EXPECT_EQ(field_uint64::decode(entry), value) << "Should be equal";
}
{
void* const value = (void*)(~(uintptr_t)0 << 3);
entry = field_pointer::encode(value);
EXPECT_EQ(field_pointer::decode(entry), value) << "Should be equal";
}
}