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test/compiler/intrinsics/mathexact/GVNTest.java@b957c650babb (annotated)

test/compiler/intrinsics/mathexact/GVNTest.java

Tue, 12 Nov 2013 14:52:48 +0100

author

rbackman

date

Tue, 12 Nov 2013 14:52:48 +0100

changeset 6102

b957c650babb

parent 0

f90c822e73f8

child 6152

9949533a8623

permissions

-rw-r--r--

8028207: assert(_outcnt==1) failed: not unique in compile.cpp
Reviewed-by: iveresov, kvn

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2013, 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 8028207
aoqi@0	27	* @summary Verify that GVN doesn't mess up the two addExacts
aoqi@0	28	* @compile GVNTest.java
aoqi@0	29	* @run main GVNTest
aoqi@0	30	*
aoqi@0	31	*/
aoqi@0	32
aoqi@0	33	public class GVNTest {
aoqi@0	34	public static int result = 0;
aoqi@0	35	public static int value = 93;
aoqi@0	36	public static void main(String[] args) {
aoqi@0	37	for (int i = 0; i < 50000; ++i) {
aoqi@0	38	result = runTest(value + i);
aoqi@0	39	result = runTest(value + i);
aoqi@0	40	result = runTest(value + i);
aoqi@0	41	result = runTest(value + i);
aoqi@0	42	result = runTest(value + i);
aoqi@0	43	}
aoqi@0	44	}
aoqi@0	45
aoqi@0	46	public static int runTest(int value) {
aoqi@0	47	int v = value + value;
aoqi@0	48	int sum = 0;
aoqi@0	49	if (v < 4032) {
aoqi@0	50	for (int i = 0; i < 1023; ++i) {
aoqi@0	51	sum += Math.addExact(value, value);
aoqi@0	52	}
aoqi@0	53	} else {
aoqi@0	54	for (int i = 0; i < 321; ++i) {
aoqi@0	55	sum += Math.addExact(value, value);
aoqi@0	56	}
aoqi@0	57	}
aoqi@0	58	return sum + v;
aoqi@0	59	}
aoqi@0	60	}