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test/compiler/whitebox/IsMethodCompilableTest.java@b84fd7d73702 (annotated)

test/compiler/whitebox/IsMethodCompilableTest.java

Tue, 09 Apr 2013 09:54:17 -0700

author

iignatyev

date

Tue, 09 Apr 2013 09:54:17 -0700

changeset 4908

b84fd7d73702

parent 4766

4efac99a998b

child 4951

4b2eebe03f93

permissions

-rw-r--r--

8007288: Additional WB API for compiler's testing
Reviewed-by: kvn, vlivanov

iignatyev@4592	1	/*
iignatyev@4592	2	* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
iignatyev@4592	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
iignatyev@4592	4	*
iignatyev@4592	5	* This code is free software; you can redistribute it and/or modify it
iignatyev@4592	6	* under the terms of the GNU General Public License version 2 only, as
iignatyev@4592	7	* published by the Free Software Foundation.
iignatyev@4592	8	*
iignatyev@4592	9	* This code is distributed in the hope that it will be useful, but WITHOUT
iignatyev@4592	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
iignatyev@4592	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
iignatyev@4592	12	* version 2 for more details (a copy is included in the LICENSE file that
iignatyev@4592	13	* accompanied this code).
iignatyev@4592	14	*
iignatyev@4592	15	* You should have received a copy of the GNU General Public License version
iignatyev@4592	16	* 2 along with this work; if not, write to the Free Software Foundation,
iignatyev@4592	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
iignatyev@4592	18	*
iignatyev@4592	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
iignatyev@4592	20	* or visit www.oracle.com if you need additional information or have any
iignatyev@4592	21	* questions.
iignatyev@4592	22	*/
iignatyev@4592	23
iignatyev@4592	24	/*
iignatyev@4592	25	* @test IsMethodCompilableTest
iignatyev@4592	26	* @bug 8007270
mgerdin@4637	27	* @library /testlibrary /testlibrary/whitebox
mgerdin@4637	28	* @build IsMethodCompilableTest
mgerdin@4637	29	* @run main ClassFileInstaller sun.hotspot.WhiteBox
mgerdin@4637	30	* @run main/othervm/timeout=600 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI IsMethodCompilableTest
iignatyev@4592	31	* @author igor.ignatyev@oracle.com
iignatyev@4592	32	*/
iignatyev@4592	33	public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
iignatyev@4592	34	protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
iignatyev@4592	35
iignatyev@4592	36	static {
iignatyev@4592	37	long tmp = Long.parseLong(
iignatyev@4592	38	getVMOption("PerMethodRecompilationCutoff", "400"));
iignatyev@4592	39	if (tmp == -1) {
iignatyev@4592	40	PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
iignatyev@4592	41	} else {
iignatyev@4592	42	PER_METHOD_RECOMPILATION_CUTOFF = 1 + (0xFFFFFFFFL & tmp);
iignatyev@4592	43	}
iignatyev@4592	44	}
iignatyev@4592	45
iignatyev@4592	46	public static void main(String[] args) throws Exception {
iignatyev@4766	47	// to prevent inlining #method into #compile()
iignatyev@4908	48	WHITE_BOX.testSetDontInlineMethod(METHOD, true);
iignatyev@4592	49	new IsMethodCompilableTest().runTest();
iignatyev@4592	50	}
iignatyev@4592	51
iignatyev@4592	52	protected void test() throws Exception {
iignatyev@4592	53	if (!WHITE_BOX.isMethodCompilable(METHOD)) {
iignatyev@4592	54	throw new RuntimeException(METHOD + " must be compilable");
iignatyev@4592	55	}
iignatyev@4592	56	System.out.println("PerMethodRecompilationCutoff = "
iignatyev@4592	57	+ PER_METHOD_RECOMPILATION_CUTOFF);
iignatyev@4592	58	if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
iignatyev@4592	59	System.err.println(
iignatyev@4592	60	"Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
iignatyev@4592	61	return;
iignatyev@4592	62	}
iignatyev@4592	63
iignatyev@4908	64	// deoptimze 'PerMethodRecompilationCutoff' times and clear state
iignatyev@4908	65	for (long i = 0L, n = PER_METHOD_RECOMPILATION_CUTOFF - 1; i < n; ++i) {
iignatyev@4908	66	compileAndDeoptimaze();
iignatyev@4592	67	}
iignatyev@4908	68	if (!WHITE_BOX.isMethodCompilable(METHOD)) {
iignatyev@4908	69	throw new RuntimeException(METHOD + " is not compilable after "
iignatyev@4908	70	+ (PER_METHOD_RECOMPILATION_CUTOFF - 1) + " iterations");
iignatyev@4908	71	}
iignatyev@4908	72	WHITE_BOX.clearMethodState(METHOD);
iignatyev@4908	73
iignatyev@4908	74	// deoptimze 'PerMethodRecompilationCutoff' + 1 times
iignatyev@4908	75	long i;
iignatyev@4908	76	for (i = 0L; i < PER_METHOD_RECOMPILATION_CUTOFF
iignatyev@4908	77	&& WHITE_BOX.isMethodCompilable(METHOD); ++i) {
iignatyev@4908	78	compileAndDeoptimaze();
iignatyev@4908	79	}
iignatyev@4908	80	if (i != PER_METHOD_RECOMPILATION_CUTOFF) {
iignatyev@4908	81	throw new RuntimeException(METHOD + " is not compilable after "
iignatyev@4908	82	+ i + " iterations, but must only after "
iignatyev@4908	83	+ PER_METHOD_RECOMPILATION_CUTOFF);
iignatyev@4908	84	}
iignatyev@4908	85	if (WHITE_BOX.isMethodCompilable(METHOD)) {
iignatyev@4592	86	throw new RuntimeException(METHOD + " is still compilable after "
iignatyev@4592	87	+ PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
iignatyev@4592	88	}
iignatyev@4592	89	compile();
iignatyev@4908	90	checkNotCompiled(METHOD);
iignatyev@4908	91
iignatyev@4908	92	WHITE_BOX.clearMethodState(METHOD);
iignatyev@4908	93	if (!WHITE_BOX.isMethodCompilable(METHOD)) {
iignatyev@4908	94	throw new RuntimeException(METHOD
iignatyev@4908	95	+ " is compilable after clearMethodState()");
iignatyev@4592	96	}
iignatyev@4908	97	compile();
iignatyev@4908	98	checkCompiled(METHOD);
iignatyev@4908	99	}
iignatyev@4908	100
iignatyev@4908	101	private void compileAndDeoptimaze() throws Exception {
iignatyev@4908	102	compile();
iignatyev@4908	103	waitBackgroundCompilation(METHOD);
iignatyev@4908	104	WHITE_BOX.deoptimizeMethod(METHOD);
iignatyev@4592	105	}
iignatyev@4592	106	}