jdk-24/test/hotspot/gtest/oops/test_objArrayOop.cpp
Roman Kennke 44ec501a41 8305895: Implement JEP 450: Compact Object Headers (Experimental)
Co-authored-by: Sandhya Viswanathan <sviswanathan@openjdk.org>
Co-authored-by: Martin Doerr <mdoerr@openjdk.org>
Co-authored-by: Hamlin Li <mli@openjdk.org>
Co-authored-by: Thomas Stuefe <stuefe@openjdk.org>
Co-authored-by: Amit Kumar <amitkumar@openjdk.org>
Co-authored-by: Stefan Karlsson <stefank@openjdk.org>
Co-authored-by: Coleen Phillimore <coleenp@openjdk.org>
Co-authored-by: Axel Boldt-Christmas <aboldtch@openjdk.org>
Reviewed-by: coleenp, stefank, stuefe, phh, ihse, lmesnik, tschatzl, matsaave, rcastanedalo, vpaprotski, yzheng, egahlin
2024-11-08 17:21:39 +00:00

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3.4 KiB
C++

/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
#include "precompiled.hpp"
#include "oops/objArrayOop.hpp"
#include "unittest.hpp"
#include "utilities/globalDefinitions.hpp"
TEST_VM(objArrayOop, osize) {
static const struct {
int objal; bool ccp; bool coops; bool coh; int result;
} x[] = {
// ObjAligInB, UseCCP, UseCoops, UseCOH, object size in heap words
#ifdef _LP64
{ 8, false, false, false, 4 }, // 20 byte header, 8 byte oops
{ 8, false, true, false, 3 }, // 20 byte header, 4 byte oops
{ 8, true, false, false, 3 }, // 16 byte header, 8 byte oops
{ 8, true, true, false, 3 }, // 16 byte header, 4 byte oops
{ 8, true, false, true, 3 }, // 12 byte header, 8 byte oops
{ 8, true, true, true, 2 }, // 12 byte header, 4 byte oops
{ 16, false, false, false, 4 }, // 20 byte header, 8 byte oops, 16-byte align
{ 16, false, true, false, 4 }, // 20 byte header, 4 byte oops, 16-byte align
{ 16, true, false, false, 4 }, // 16 byte header, 8 byte oops, 16-byte align
{ 16, true, true, false, 4 }, // 16 byte header, 4 byte oops, 16-byte align
{ 16, true, false, true, 4 }, // 12 byte header, 8 byte oops, 16-byte align
{ 16, true, true, true, 2 }, // 12 byte header, 4 byte oops, 16-byte align
{ 256, false, false, false, 32 }, // 20 byte header, 8 byte oops, 256-byte align
{ 256, false, true, false, 32 }, // 20 byte header, 4 byte oops, 256-byte align
{ 256, true, false, false, 32 }, // 16 byte header, 8 byte oops, 256-byte align
{ 256, true, true, false, 32 }, // 16 byte header, 4 byte oops, 256-byte align
{ 256, true, false, true, 32 }, // 12 byte header, 8 byte oops, 256-byte align
{ 256, true, true, true, 32 }, // 12 byte header, 4 byte oops, 256-byte align
#else
{ 8, false, false, false, 4 }, // 12 byte header, 4 byte oops, wordsize 4
#endif
{ -1, false, false, false, -1 }
};
for (int i = 0; x[i].result != -1; i++) {
if (x[i].objal == (int)ObjectAlignmentInBytes && x[i].ccp == UseCompressedClassPointers && x[i].coops == UseCompressedOops &&
x[i].coh == UseCompactObjectHeaders) {
EXPECT_EQ(objArrayOopDesc::object_size(1), (size_t)x[i].result);
}
}
}