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8006683: Add WhiteBox API to testing of compiler

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Reviewed-by: kvn, vlivanov
This commit is contained in:
Igor Ignatyev 2013-02-13 08:29:04 -08:00
parent 13c5c423d6
commit 034705ee13
10 changed files with 549 additions and 5 deletions
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84
hotspot/test/compiler/whitebox/IsMethodCompilableTest.java Normal file
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/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test IsMethodCompilableTest
* @bug 8007270
* @compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI CompilerWhiteBoxTest.java
* @compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI IsMethodCompilableTest.java
* @run main/othervm/timeout=600 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI IsMethodCompilableTest
* @author igor.ignatyev@oracle.com
*/
public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
static {
long tmp = Long.parseLong(
getVMOption("PerMethodRecompilationCutoff", "400"));
if (tmp == -1) {
PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
} else {
PER_METHOD_RECOMPILATION_CUTOFF = 1 + (0xFFFFFFFFL & tmp);
}
}
public static void main(String[] args) throws Exception {
new IsMethodCompilableTest().runTest();
}
protected void test() throws Exception {
if (!WHITE_BOX.isMethodCompilable(METHOD)) {
throw new RuntimeException(METHOD + " must be compilable");
}
System.out.println("PerMethodRecompilationCutoff = "
+ PER_METHOD_RECOMPILATION_CUTOFF);
if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
System.err.println(
"Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
return;
}
// to prevent inlining #method into #compile()
WHITE_BOX.setDontInlineMethod(METHOD, true);
boolean madeNotCompilable = false;
for (long i = 0; i < PER_METHOD_RECOMPILATION_CUTOFF; ++i) {
compile();
waitBackgroundCompilation(METHOD);
WHITE_BOX.deoptimizeMethod(METHOD);
if (!WHITE_BOX.isMethodCompilable(METHOD)) {
madeNotCompilable = true;
break;
}
}
if (!madeNotCompilable) {
throw new RuntimeException(METHOD + " is still compilable after "
+ PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
}
compile();
if (WHITE_BOX.isMethodCompiled(METHOD)) {
printInfo(METHOD);
throw new RuntimeException(
METHOD + " is not compilable but compiled");
}
}
}