test/hotspot/jtreg/vmTestbase/jit/verifier/VerifyInitLocal/VerifyInitLocal2N.jasm

/*
 * Copyright (c) 2008, 2018, 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.
 */
/*
variation of:
	class VerifyInitLocal2N extends VerifyInitLocal {
	  private boolean isfalse;
	  private boolean verified;
	  public VerifyInitLocal2N() { verified = !isfalse; }
	  public boolean verify() { return verified; }
	}
*/

super class jit/verifier/VerifyInitLocal/VerifyInitLocal2N
	extends jit/verifier/VerifyInitLocal/VerifyInitLocal
{

private Field isfalse:Z;
private Field verified:Z;

public Method "<init>":"()V"
	stack 3 locals 1
{
		// Early initialization of local field must not include a read:
		aload_0;
		aload_0;
		getfield	Field isfalse:"Z";   //BAD
		iconst_1;
		ixor;
		putfield	Field verified:"Z";

		aload_0;
		invokespecial	Method jit/verifier/VerifyInitLocal/VerifyInitLocal."<init>":"()V";
		return;
}

public Method verify:"()Z"
	stack 1 locals 1
{
		aload_0;
		getfield	Field verified:"Z";
		ireturn;
}

} // end Class VerifyInitLocal2N