jdk-24/test/hotspot/gtest/gc/z/test_zBitMap.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

91 lines
2.5 KiB
C++

/*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
#include "precompiled.hpp"
#include "gc/z/zBitMap.inline.hpp"
#include "unittest.hpp"
class ZBitMapTest : public ::testing::Test {
protected:
static void test_set_pair_unset(size_t size, bool finalizable) {
ZBitMap bitmap(size);
for (BitMap::idx_t i = 0; i < size - 1; i++) {
if ((i + 1) % BitsPerWord == 0) {
// Can't set pairs of bits in different words.
continue;
}
// ZBitMaps are not cleared when constructed.
bitmap.clear();
bool inc_live = false;
bool ret = bitmap.par_set_bit_pair(i, finalizable, inc_live);
EXPECT_TRUE(ret) << "Failed to set bit";
EXPECT_TRUE(inc_live) << "Should have set inc_live";
// First bit should always be set
EXPECT_TRUE(bitmap.at(i)) << "Should be set";
// Second bit should only be set when marking strong
EXPECT_NE(bitmap.at(i + 1), finalizable);
}
}
static void test_set_pair_set(size_t size, bool finalizable) {
ZBitMap bitmap(size);
for (BitMap::idx_t i = 0; i < size - 1; i++) {
if ((i + 1) % BitsPerWord == 0) {
// Can't set pairs of bits in different words.
continue;
}
// Fill the bitmap with ones.
bitmap.set_range(0, size);
bool inc_live = false;
bool ret = bitmap.par_set_bit_pair(i, finalizable, inc_live);
EXPECT_FALSE(ret) << "Should not succeed setting bit";
EXPECT_FALSE(inc_live) << "Should not have set inc_live";
// Both bits were pre-set.
EXPECT_TRUE(bitmap.at(i)) << "Should be set";
EXPECT_TRUE(bitmap.at(i + 1)) << "Should be set";
}
}
static void test_set_pair_set(bool finalizable) {
test_set_pair_set(2, finalizable);
test_set_pair_set(62, finalizable);
test_set_pair_set(64, finalizable);
test_set_pair_set(66, finalizable);
test_set_pair_set(126, finalizable);
test_set_pair_set(128, finalizable);
}
static void test_set_pair_unset(bool finalizable) {
test_set_pair_unset(2, finalizable);
test_set_pair_unset(62, finalizable);
test_set_pair_unset(64, finalizable);
test_set_pair_unset(66, finalizable);
test_set_pair_unset(126, finalizable);
test_set_pair_unset(128, finalizable);
}
};
TEST_F(ZBitMapTest, test_set_pair_set) {
test_set_pair_set(false);
test_set_pair_set(true);
}
TEST_F(ZBitMapTest, test_set_pair_unset) {
test_set_pair_unset(false);
test_set_pair_unset(true);
}