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test/compiler/6378821/Test6378821.java@710a3c8b516e (annotated)

test/compiler/6378821/Test6378821.java

Tue, 08 Aug 2017 15:57:29 +0800

author

aoqi

date

Tue, 08 Aug 2017 15:57:29 +0800

changeset 6876

710a3c8b516e

parent 1907

c18cbe5936b8

parent 0

f90c822e73f8

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/**
aoqi@0	25	* @test
aoqi@0	26	* @bug 6378821
aoqi@0	27	* @summary where available, bitCount() should use POPC on SPARC processors and AMD+10h
aoqi@0	28	*
aoqi@0	29	* @run main/othervm -Xcomp -XX:CompileOnly=Test6378821.fcomp Test6378821
aoqi@0	30	*/
aoqi@0	31
aoqi@0	32	public class Test6378821 {
aoqi@0	33	static final int[] ia = new int[] { 0x12345678 };
aoqi@0	34	static final long[] la = new long[] { 0x12345678abcdefL };
aoqi@0	35
aoqi@0	36	public static void main(String [] args) {
aoqi@0	37	// Resolve the class and the method.
aoqi@0	38	Integer.bitCount(1);
aoqi@0	39	Long.bitCount(1);
aoqi@0	40
aoqi@0	41	sub(ia[0]);
aoqi@0	42	sub(la[0]);
aoqi@0	43	sub(ia);
aoqi@0	44	sub(la);
aoqi@0	45	}
aoqi@0	46
aoqi@0	47	static void check(int i, int expected, int result) {
aoqi@0	48	if (result != expected) {
aoqi@0	49	throw new InternalError("Wrong population count for " + i + ": " + result + " != " + expected);
aoqi@0	50	}
aoqi@0	51	}
aoqi@0	52
aoqi@0	53	static void check(long l, int expected, int result) {
aoqi@0	54	if (result != expected) {
aoqi@0	55	throw new InternalError("Wrong population count for " + l + ": " + result + " != " + expected);
aoqi@0	56	}
aoqi@0	57	}
aoqi@0	58
aoqi@0	59	static void sub(int i) { check(i, fint(i), fcomp(i) ); }
aoqi@0	60	static void sub(int[] ia) { check(ia[0], fint(ia), fcomp(ia)); }
aoqi@0	61	static void sub(long l) { check(l, fint(l), fcomp(l) ); }
aoqi@0	62	static void sub(long[] la) { check(la[0], fint(la), fcomp(la)); }
aoqi@0	63
aoqi@0	64	static int fint (int i) { return Integer.bitCount(i); }
aoqi@0	65	static int fcomp(int i) { return Integer.bitCount(i); }
aoqi@0	66
aoqi@0	67	static int fint (int[] ia) { return Integer.bitCount(ia[0]); }
aoqi@0	68	static int fcomp(int[] ia) { return Integer.bitCount(ia[0]); }
aoqi@0	69
aoqi@0	70	static int fint (long l) { return Long.bitCount(l); }
aoqi@0	71	static int fcomp(long l) { return Long.bitCount(l); }
aoqi@0	72
aoqi@0	73	static int fint (long[] la) { return Long.bitCount(la[0]); }
aoqi@0	74	static int fcomp(long[] la) { return Long.bitCount(la[0]); }
aoqi@0	75	}